Data Sheets · PDF fileThermal Insulation Products - Jacketing & Cladding Sealumet (Australia) Pty Limited Mailing Address : PO Box 2218, Warwick, Perth, WA, 6024 Warehouse

Thermal Insulation Products - Jacketing & Cladding

Sealumet (Australia) Pty LimitedMailing Address : PO Box 2218, Warwick, Perth, WA, 6024Warehouse : Unit 2, 6 Langar Way, Landsdale, Perth, WA - 6065Telephone : +618 6201 6153, Fax : +618 9303 4560E-mail: [email protected] Website: www.sealumet.comDISCLAIMERThese data sheets are based on specifications, data and test results at time of publication. No guarantee as to completeness, accuracy or results is either expressed or implied. The suitability foran intended use is the responsibility of the user. As choice of material, method of application and site conditions are beyond our control we accept no liability for direct or consequential damages.Any material proved to be defective within the published shelf life* will be replaced. *From date of supply.

2.5 inch Deep CorrugatedDescription

Deep Corrugated Sheets are available in Aluminium, StainlessSteel and Ultrolon*. They provide protection for insulatedequipment, towers, vessels and tanks with outside diametersof 12' or more.

Aluminium Deep Corrugated Sheets are supplied in fivethicknesses: .016, .020, .024, .032 and .040. Stainless SteelDeep Corrugated Sheets can be supplied in .010 and heavierthicknesses. Deep Corrugated Sheets are available in 11/4"and 21/2" corrugations. The 11/4" corrugations have a depth1/4" and the 21/2" corrugations have a depth of 5/8".Aluminium Deep Corrugated Sheets are supplied in 1100,3003, 3105 or 5005 alloy, and Stainless is supplied in T-304 orT-316 alloy. Deep Corrugated Sheets are available in a smoothfinish, a stucco embossed pattern, and 3/16" cross crimped, upto 12' in length. Greater lengths may be specially ordered.3/16" cross crimp corrugations provide extra strength. Testsprove the vertical strength and rigidity of an .016 Aluminiumsheet with cross crimping is as great as a deep corrugated.024 Aluminium sheet.

Recommended UsesChemical Plants & Refineries: Distillation columns, tank farms,fractionation units, cokers and ethylene production units.Paper Mills: Chemical storage tanks, breechings and ducts.Steel Mills: Pickle acid tanks, oxygen production units, fuel oiland tar storage tanks.Miscellaneous: Food processing plants, LPG storage units,LNG storage units, sewage and waste water treatment plants.

Polykraft Moisture BarrierPolykraft consists of one layer of one mil polyethylene film witha protective layer of 40 pound virgin kraft paper. The moisturebarrier is attached to the jacketing by continuous lamination tothe full width of the metal. The moisture barrier is used toprevent moisture and corrosives, in the insulation, from cominginto direct contact with the metal jacketing surface and causinggalvanic or chemical corrosion.

Specification No. 1500All insulation on equipment, towers, vessels and tanks with

Corrugated Sheets

outside diameters of 12' or more shall be weather-proofed withChilders’ Deep Corrugated Sheets.The Deep Corrugated Sheets shall be manufactured from:

(1)___________(2)___________(3)____________**The sheets shall have corrugations of (4)___________**standard dimensions. All sheets shall have an integrallybonded moisture barrier over the entire surface in contact withthe insulation.

(1) Available thicknesses: Aluminium .016,. 020, .024, .032, .040; Stainless Steel .010 minimum**

(2) Available alloys: Aluminium 1100, 3003, 3105 or 5005; Stainless Steel T-304, T-316**

(3) Available metals: Aluminium, Stainless Steel or Ultrolon**(4) Standard dimensions: a. 11/4"x1/4"x33" nominal b. 21/2"x5/8"x33"

nominal**

Ultrolon is a registered tradename

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Profiled Sheets

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Fire Resistive Backed Aluminium Jacketing

IntroductionFew insulation systems are capable of resisting fire,weathering and mechanical damage without some form ofexternal protection. This is because most are made from lowdensity, low strength materials for maximum thermal efficiency.Without protection the insulation deteriorates anddisintegrates, operating efficiency is lost and money wasted.

GeneralSealumet Fire Resistive Backed Aluminium Jacketing is a light,rust free, easy to apply material for long term protection of lowdensity, low strength insulation systems over pipelines, storagevessels and tanks against damage by fire, weathering andmechanical impact or abrasion. This jacketing may be cut andfitted on site quickly and efficiently, eliminating the need forskilled techniques to tailor-make the intricate metal shapespreviously necessary for fitting the contours of pipelinesystems and storage vessels and can also be supplied withoutthe Fire Resistive Backing.

Here is a summary of the considered advantages of usingSealumet Fire Resistive Backed Aluminium Jacketing:1 Lightweight and easy to apply on site using a simple

tool kit and semi-skilled labour.2 Assured long term, corrosion free, durability in most

environments without overcoating with special paints.3 Highly competitive material and installation costs.4 Fire resistive, pre-bonded moisture barrier backing to

BS 476, Class 1.5 The moisture barrier backing, pre-bonded to the inner

surface of the jacketing, helps to maintain maximum thermal efficiency of the insulation.

6 Low emissivity value of aluminium reduces heat loss and resists ultra violet light attack.

7 Transverse reeding offers additional strength and flexibility during and after erection.

8 Available in coils in a range of thicknesses for direct application to insulated pipelines or sheets for vessels and tanks.

9 Banding and aluminium seals are easily fixed. Once erected a jacketing system requires no regular maintenance.

10 The reeded aluminium maintains an unusually attractive decorative finish.

SpecificationSealumet Fire Resistive Backed Aluminium Jacketing ismanufactured from 99% purity aluminium to B.S. 1470 NS3 H4and can be supplied with moisture barrier backing that is fireresistive to B.S.476, Class 1. Half hard temper is used to obtainoptimum strength and reliability.

Comparative StrengthSealumet aluminium jacketing 0.20mm thick, compares inrigidity and strength with 0.40mm plain aluminium sheet inresisting vertical stress and similarly 0.40mm thick compareswith 0.60 plain aluminium sheet.

Transverse Reeded CoilsDuring manufacture both faces are given uniform 5mm pitchparallel ridges over the entire surface, known as transversereeding. By this, means the durability and mechanical strengthof the material is increased, making it possible for lightergauges to be used without loss of strength, an important factorwhen the insulation cost is related to stress loadings oninsulated equipment. Supplied in coils for direct application topipelines Sealumet aluminium jacketing is also transversereeded for easy curvature, that is, the ridges run at right anglesto the ends of the coils.

CoilsCoils in seven standard thicknesses are available from stock:0.20mm, 0.40mm, 0.50mm, 0.60mm, 0.8mm, 0.9mm, and1.0mm. Also available on request, 0.7mm, 1.2mm and 1.5mm.

Nominal Coil Thickness Coil Width Coil Length Weight without

moisture barrier

0.20mm 3ft 100ft 16.2kg0.40mm 3ft 100ft 32.4kg0.50mm 3ft 100ft 40.5kg0.60mm 3ft 100ft 48.6kg0.80mm 3ft 100ft 64.8kg0.90mm 3ft 100ft 73.0kg1.00mm 3ft 100ft 81.0kg1.20mm 3ft 100ft 98.3kg1.50mm 3ft 100ft 122.9kg

Recommendation for use0.20mm thickness (Standard Wire Gauge 33) is suggested forthe protection of insulation from physical abuse on pipe lines,provided a high density insulation material is being usedunderneath and walking is not allowed on the insulated lines.

0.60mm thickness (Standard Wire Gauge 23) is suggested fortowers, vessels and tanks, and it is recommended for pipelinesand walkways when the diameter does not exceed 0.45m andwhere there is a risk of mechanical damage. This gauge mayalso be used over larger diameter pipes where risk of damageis slight.

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Fire Resistive Backed Aluminium JacketingContinued

0.80mm thickness (Standard Wire Gauge 21). This is advisedfor large (0.45m diameter) pipe insulation which is liable to bedamaged mechanically, i.e. pipe tracks, and is suggested forspecial tank or vessel applications where design may call forextra thickness. The design engineer should vary the gauge tosuit the specific requirements. These conditions could include0.90mm (20swg), 1.0mm (19swg), 1.2mm (18swg), 1.5mm(16swg).

Physical, chemical & mechanical properties

Moisture BarrierAluminium Jacketing is supplied with a moisture barrier, whichconsists of 40-pound kraft paper coated with one-mil thick, lowdensity polyethylene film, heat and pressure bonded to theinterior surface. This moisture barrier prevents galvaniccorrosion caused by contact of dissimilar metals in thepresence of moisture, and chemical corrosion caused byinstalling sheets over damp insulation materials.

For increased galvanic and corrosion protection, three-milpolyethylene or Poly-Surlyn* moisture barriers are available.

Typical mechanical properties

Above data based on the Aluminium Association Handbook1988/1989. Polyethylene Kraft Paper moisture barrier 100%waterproof and chemically inert. Laminated to the aluminiumwithout the use of glue or adhesives.

Aluminium

3003 (3S-NS3-AlMn)

Density (grm/cc) at +20ºC 2.73

Melting range +640-655ºC

Specific heat at 0ºC uth/grm ºC 0.22

Thermal expansion coefficient per ºC

between +20ºC and +100ºC 23 x 106

Thermal conductivity at 0ºC th/cm/cm2.s. ºC 0.38

Electrical resistivity at +20ºC ohm. mm2/m 0.04

Reflectivity 80%

Emissivity 10%

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Insulated Pipe LinesDetermine the insulation circumference, and using knife andstraight edge, cut the jacketing, allowing 76.2 mm (3”) for lapand hem. Turn back a 25 mm (1”) hem on one edge (Fig.1) andwrap jacketing around allow 50 mm (2”) overlap at bothcircumferential and longitudinal joints (Figs.1 and 2).Longitudinal laps must be on the underside of horizontal lines,away from prevailing weather on vertical lines, and slightlyoffset on adjacent pieces (Fig.3). Fasten in place withaluminium strapping and seals. Cut strapping to circumferenceof insulation and add 152 mm (6”). Fix seal to end of strapping(Fig.4). Take strapping round jacketing and back through theseal.

Pull strapping tight with pliers while holding a screwdriver orwedge against the back of seal (Fig.5). While maintainingtension, take the strapping back through the wings of the sealand close them down over it (Fig.6). Strapping should beplaced over circumferential laps and at 203 mm (8”) to 304 mm(12”) intervals, depending on the pipe diameter and localconditions.

Alternatively, aluminium pan head self-tapping screws can beused instead of strapping and seals. Wrap jacketing lightlyround the insulated pipe line and secure temporarily with widebelts. Do not use wire. Insert 8 x 12.7 mm (I”) aluminium self-tapping screws 76.2 min (3”) to 127 mm (5”) along bothlongitudinal and circumferential laps.

For extra weather protection at joints, on bends and fittings,vertical pipelines, for example, apply a continuous bead ofMetal Sealant 4-04 between all laps (supplied in cans orcartridges, see price list).

Vessels, Towers and TanksFor vessels, towers and tanks more than 1.82 m (6”) diameter,TS 1004 aluminium sheets should be used. For vessels,towers and tanks less than 1.82 m (6”) in diameter AluminiumJacketing is recommended. For ease of handling cut lengths ofAluminium Jacketing from 3 m (1O”) to 3.6 m (12”) allowing atleast 76.2 mm (3”) overlap at both circumferential andlongitudinal joints. Use a broad belt to hold sheets temporarilyin place and insert number 8 x 12.7 mm (1/2”) aluminium self-tapping screws every 152 mm (6”) along the overlapping joints.Additional support should be given by using 19 mm (3/4”) by0.50 mm (0.020”) aluminium strapping with seal around eachcourse of jacketing.

Fixing Aluminium Jacketingto pipelines, vessels, towers & tanks



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STAINLESS STEEL PRODUCT DATA SHEET

Stainless-Steel Roll Jacketing is manufactured from AISI-304,AISI-304L, AISI-316 AND AISI-316L prime grade Austeniticstainless steel with regular 2B finish for flatness and reducedglare. The yield strength is 30,000/45,000 PSI, the tensile75,000/100,000 PSI. For easy field fabrication, Stainless SteelJacketing is supplied in the annealed or soft condition. AISI-304 AND AISI-304L is normally used except in the mostcorrosive areas where AISI-316 AND AISI-316L is justified. AllAISI-304, AISI-304L, AISI-316 AND AISI-316L Stainless steelare described in ASTM A-240.

Stainless Steel Jacketing has a melting point of approximately2500°F Stainless Steel offers the best fire protection of allmetals used for metal jacketing.

THICKNESS010”, 016”, 020”, 024”, 032”, 040”, 050”

WIDTH AND DESCRIPTIONRolls and flat sheets 24” through 48”, 1/4 and 3/4” deep Corrugated sheets – 33”, 4” x 1” Box Rib – 28”, 38-1/2"

FINISH Stainless Steel jacketing is available in several finishes, whichinclude smooth, stucco embossed, and in the lighter gauges,3/16” corrugated. The stucco embossed finish on StainlessSteel Jacketing reduces glare from sunlight, adds strength andhas more potential for masking application fingerprints,scratches, dents and other minor surface blemishes.

Stainless Steel jacketing is also available in smooth, light greyFluoride coating (PVF/PVDF), and in the lighter gauges, 3/16”corrugated. Fluoride coating process details are available onrequest.

MOISTURE BARRIERFor increased galvanic and corrosion protection, StainlessSteel jacketing can be supplied with a moisture barrier, with anintegral, continuously heat sealed Polysurlyn moisture barrierheat and pressure bonded to the interior surface. Polysurlynshall be a 3.0 mil (76.2 μm) coextrusion of Dupont's Surlyn andpolyethylene. This moisture barrier prevents galvanic corrosioncaused by contact of dissimilar metals in the presence ofmoisture, and also chemical corrosion caused by contact ofdissimilar metals in the presence of moisture, and alsochemical corrosion caused by certain insulation materialswhen the sheets are installed over damp insulation materials.

Polykraft is also available as a moisture barrier if specified inplace of Polysurlyn.

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APPLICATIONSThe primary use of Stainless Steel sheet and jacketing is forhostile environments such as the pulp, paper, textile, refineryand Petro-Chemical applications.

STAINLESS STEEL CHARACTERISTICS

AISI-304: Most widely used steel type. 304 is known for goodcorrosion resistance, thermal resistance, low-temperaturestrength and mechanical properties. 304 have good drawability such as deep drawing and bending. 304 is not hardenedby heat treatment. (non-magnetic, usable temperature: -196~800°C)

AISI-316: Excellent corrosion resistance, pitting corrosionresistance and high temperature strength by adding Mo. Usefulin severe/harsh conditions. Excellent work hardening (non-magnetic).

AISI-316L: Low carbon steel type. Has the normal propertiesof 316 plus excellent inter-granular corrosion resistance.





Aluminium Alclad Sheet & Jacketing

Description/SpecificationAluminium Alclad sheet and jacketing is manufactured fromtype 3004, 3003 or 3105 wrought aluminium alloy with ametallurgically bonded coating of 7072 aluminium alloy whichis applied and rolled onto both sides of the sheet for thepurpose of corrosion protection. The cladding thickness perside is a nominal 5% of the composite thickness. This productconforms to ASTM B209.

THICKNESS:.01 6", .020", .024", 032", .040", .050"WIDTH & DESCRIPTION:Rolls and flat sheets - 24" through 48"; 1-1/4" and 2-1/2" deepcorrugated sheets -33"; Box Rib 38-1/2", 45-5/8",49-5/8".

FinishesAlcald sheet and jacketing is available in several finishes whichinclude smooth, stucco embossed and 3/16" cross crimped inthe lighter gauges. The stucco embossed finish on corrugatedsheets reduces glare from sunlight, adds strength and hasmore potential for masking application fingerprints, scratches,dents and other minor surface blemishes.

Moisture BarrierAlclad sheet and jacketing is supplied with a moisture barrier,which consists of 40-pound kraft paper coated with one-milthick, low density polyethylene film, heat and pressure bondedto the interior surface. This moisture barrier prevents galvaniccorrosion caused by contact of dissimilar metals in thepresence of moisture, and chemical corrosion caused byinstalling sheets over damp insulation materials.


* Surlyn - DuPont trademark.

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Acyl Painted Sheet & Jacketing

Description/SpecificationACYL painted sheet and jacketing is manufactured fromwrought aluminium alloy, H-14 temper. The bare aluminium isfirst physically and chemically cleaned, primer (conversion)coated, and finally top coated with a thermo set acrylic paintwhich has excellent stain, abrasion and mar resistance. Thispaint system is available in five standard colours. Non standardcolours are available, but subject to minimum quantityrequirements. The bare aluminium alloy meets ASTM B209.

THICKNESS:.01 6", .020", .032", .040", .050"WIDTH & DESCRIPTION:Rolls and flat sheets -24" through 48"; 1-1/4" and 2-1/2" deepcorrugated sheets -33"; 4"x 1" Box Rib -38-1/2", 45-5/8.

FinishesACYL Painted sheet and jacketing is available in severalfinishes which include smooth and stucco embossed, and3/16" corrugated in lighter gauges. The stucco embossed finishon corrugated sheets reduces glare from sunlight, addsstrength and has more potential for masking applicationfingerprints, scratches, dents and other minor surfaceblemishes.

ApplicationsThe primary use of ACYL sheet and jacketing is for hostileenvironments such as the pulp, paper, textile, refinery andPetro-Chemical applications.

Moisture BarrierSheet & Jacketing is supplied with a moisture barrier, whichconsists of 40-pound kraft paper coated with one mil thick, lowdensity polyethylene film, heat and pressure bonded to theinterior surface. This moisture barrier prevents galvaniccorrosion caused by contact of dissimilar metals in thepresence of moisture, and chemical corrosion caused byinstalling sheets over damp insulation materials.



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Tedlar®* Laminated Sheet & Jacketing

Description/SpecificationTEDLAR laminated sheet and jacketing is manufactured fromwrought aluminium alloy, H-14 temper. TEDLAR, a tough PVFfilm, is manufactured in continuous rolls under exacting qualitycontrol conditions. The two products, metal and film, arebonded together through the use of permanent adhesives,heat and pressure.

TEDLAR is unaffected by common solvents includinghydrocarbons and chlorinated solvents. It provides excellentresistance to corrosive acids, caustics, hot tar and greases.The aluminium substrate meets ASTM B-209.

THICKNESS:.016",.032"WIDTH & DESCRIPTION:Rolls and flat sheets -36";1-1/4 and 2-1/2" deep corrugatedsheets -33"

FinishesTEDLAR laminated sheet and jacketing is available in severalfinishes which include smooth, stucco embossed and 3/16"corrugated in lighter gauges. The stucco embossed finish oncorrugated sheets reduces glare from sunlight, adds strengthand has more potential for masking application fingerprints,scratches, dents and other minor surface blemishes.

ApplicationsThe primary use of TEDLAR laminated sheet and jacketing isfor hostile environments such as the pulp, paper, textile,refinery and Petro-Chemical applications.

Moisture BarrierSheet & Jacketing is supplied with a moisture barrier, whichconsists of 40-pound kraft paper coated with three mil thick,low density polyethylene film, heat and pressure bonded to theinterior surface. This moisture barrier prevents galvaniccorrosion caused by contact of dissimilar metals in thepresence of moisture, and chemical corrosion caused byinstalling sheets over damp insulation materials.

For increased galvanic and corrosion protection, Poly-Surlyn*moisture barrier is available.

* TEDLAR and Surlyn are DuPont trademarks.

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AZ-60 Coated Steel

Description/SpecificationAZ-60 Coated Steel sheet and jacketing is manufactured fromGalvalume*, a sheet steel product having a coating ofcorrosion resistant aluminium - zinc alloy applied by acontinuous hot dipping process. The composition of thecoating is typically 55% aluminium, 1.6% silicon, and thebalance zinc. AZ-60 Coated Steel has a nominal coatingweight of .60 ounces/square foot (total both sides) which isequivalent to .96 mil thickness on each side. This coating provides the optimum combination of durability,sacrificial protection and resistance to crevice corrosion inmost environments.

THICKNESS:.01 6" (other thicknesses special enquiry)WIDTH & DESCRIPTION:Rolls and flat sheets -36" through 48"; Sheets -1-1/4" and 2-1/2" deep corrugated-333"; 4"x 1" Box Rib -38 -1/2"

FinishesAZ-60 is available in smooth and stucco embossed. Thestucco embossed finish on sheets reduces glare from sunlight,adds strength and has more potential for masking applicationfingerprints, scratches, dents and other minor surfaceblemishes.A variety of pre-painted systems for added corrosionresistance is also available upon special request.

ApplicationsAZ-60 sheet, both bare and pre-painted, is intended forapplications where the combination of superior corrosionresistance and high strength is required. It can be applied inmost hostile environments as found in powerplants, refineries,and in the chemical process industry. It can also be used inconjunction with aluminium without negative results.

Moisture BarrierSheet and jacketing is supplied with a moisture barrier, whichconsists of 40-pound kraft paper coated with one mil thick, lowdensity polyethylene film, heat and pressure bonded to theinterior surface. This moisture barrier prevents galvaniccorrosion caused by contact of dissimilar metals in thepresence of moisture, and chemical corrosion caused byinstalling sheets over damp insulation materials.

For increased galvanic and corrosion protection, three-milpolyethylene or Poly-Surlyn** moisture barriers are available.

*Galvalume - BIEC international, Inc. trademark.** Surlyn - DuPont trademark.

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Galv-cote Steel Sheet & Jacketing

Description/SpecificationGALV-COTE Steel sheet and jacketing is manufactured fromcontinuous hot-dipped G90 Zinc-coated steel. The baregalvanized steel sheet is first physically and chemicallycleaned, primer coated, and finally top coated with a modifiedSilicone polyester paint. This paint system features outstandingexterior durability and superior non-chalking and glossretention properties.

The bare steel meets ASTM A-527 LFQ and JIS G 3302.

THICKNESS:.01 6", .020", .024", 032", .040", .050"WIDTH & DESCRIPTION:Rolls 24" through 48", sheets 1-1/4" and 2-1/2" deepcorrugated -33"; 4"x1" Box Rib -38-1/2" (Note: On 4"x 1" BoxRib.016" and .020" must be embossed).

FinishesGalv-cote is available in smooth and stucco embossed. Thestucco embossed finish on Galv-cote sheets reduce glare fromsunlight, adds strength and has more potential fro maskingapplication fingerprints, scratches, dents and other minorsurface blemishes.

ApplicationsThe primary use of Galv-cote sheet and jacketing is for hostileenvironments such as the pulp, paper, textile, refinery andPetro-Chemical applications.

Moisture BarrierSheet & Jacketing is supplied with a moisture barrier, whichconsists of 40-pound kraft paper coated with one mil thick, lowdensity polyethylene film, heat and pressure bonded to theinterior surface. This moisture barrier prevents galvaniccorrosion caused by contact of dissimilar metals in thepresence of moisture, and chemical corrosion caused byinstalling sheets over damp insulation materials.



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Aluzinc

BASE MATERIAL Mild steel sheet to BS EN 10215 : 1995.

COATING Hot dipped alloy coating (galvanising process).

COATING ANALYSIS 55% Aluminum. 43.4% Zinc. 1.6% Silicon (by weight)

COATING WEIGHT 150 or 185 gms of alloy per m2 equally distributed between both sides of sheet.

COATING THICKNESS 150gm coating = 20 microns (equivalent to 275 gms coating of zinc galvanised)185gm coating = 25 microns (equivalent to 350 gms coating of zinc galvanised)

FINISH Bright aluminum type, with predictably consistent small spangles. Stays bright throughout life.

FIRE RATING Non-combustible BS476: Part 4; Class O.

CORROSION RESISTANCE At least four times the corrosion resistance of zinc galvanised in most applications. Aluzinc isparticularly good compared to galvanised in salt laden and/or polluted atmospheres.

HEAT RESISTANCE Excellent heat resistance- will not change appearance until beyond 315 deg C. Can be used to much higher temperatures if “graying” is irrelevant.

EMISSIVITY Emissivity figure 0.16 – when new.

UNSUITABLE COMBINATIONS Basic atmospheres. Contact with more noble metals or their salts.

SALT WATER CORROSION An Aluzinc sheet has withstood eighteen years of constant salt spray at Dungeness Power Station without red rust corrosion at any corner, edge or face.

LIFE EXPECTANCY TO More than 20 years in most environments and up to 50 years in the least corrosiveFIRST MAINTANCE atmospheres.

FABRICATION Aluzinc is supplied in a variety of grades but even the most humble is fully lockforming grade. High strength grades as well as deep drawing grades are available.

“PAINTABILITY” Aluzinc is very easy to paint. A particularly smooth surface is available. The pre-treatment is easier and more effective than zinc galvanised.

DIMENSIONS Coils 50 kilos – 10 tonnes. Sheets 1 metre – 11 metres. Blanks – All sizes. Slit coil available.

THICKNESS 0.4mm thick to 2.0mm thick.

WIDTH Standards – 1250mm and 1000mm. slit widths also available.

SHALLOW PROFILES Coils, sheets and blanks can be supplied with a number of shallow profiles rolled into the sheet. These profiles serve aesthetic, stiffening and cost saving purposes. TRADITIONAL ‘STUCCO’ FINISH AVAILABLE.

PACKAGING Sheet and coil substantially packed on refundable pallets.

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Aludip BQ

High-integrity steelsAludip high-integrity steels offer a host of properties forperformance critical applications such as building, powergenerating, petrochemical and oil industries and in marineenvironments.

Aludip BQ high-integrity steels with dedicated properties:

• Strength• Corrosion resistance• Heat resistance and relectivity• Non-combustible• High-temperature oxidation resistance• Sag resistance• Zinc-free• Abrasion resistance• High-emissivity• Formable• Excellent surface for painting• Low radio-frequency interference

The Aludip range of high-integrity steels offers three products.Aludip BQ is the standard product in this range and is the basefor organic coated products, Aludip BQX and Aludip BQHE.

Aludip Building QualityAludip BQ is used as insulation cladding in the powergenerating, petrochemical, and oil industries. Its primary use isin the lagging of pipes, but it also used for ventilation ductingand building cladding. Its hot-dip aluminium-silicon alloycoating provides excellent corrosion resistance in demandingapplications.

Aludip Building Quality ExtraAludip BQX is based upon Aludip BQ, but has a protectiveorganic coating in addition to its alloy coating. It provides extraprotection against the harshest atmospheric corrosion, such assea spray and salt air attack, particularly in spaces that arenorth facing, poorly ventilated, and not regularly washed withfresh rainwater. Typical applications include offshore oilrigsand seashore termanails.

The organic coating on Aludip BQX is available in white orstandard grey and offers a uniform surface and colour forapplications that require enhanced appearance.

Aludip Building Quality High-EmissivityAludip BQHE has a high-demissivity coating and is suitable forapplications that require the surface to absorb a highproportion of ambient heat. A typical example is pipe claddingfor power stations. The special grey organic coating has anemissivity index exceeding 0.8. this coating also enhances

corrosion resistance, and ensures a consistent appearance ofAludip BQHE.

PropertiesStrengthAludip high-integrity steels have a Young’s modulus threetimes that of pure aluminium sheet. See figure 1 below fortypical mechanical properties.

Aludip high-integrity steels retain their strength at hightemperatures, as described below.

Figure 1: Mechanical propertiesGrade Tensile strength Elongation

Rm (N/mm2) A80 (%)Max Min

BQ, BQX and BQHE 500 22

Note: For thicknesses between 0.5mm and 0.7mm inclusive,the minimum elongation value (A80) shall be reduced by 2%.

Corrosion resistanceAludip high-integrity steels have excellent corrosion resistance,far superior to pure zinc and zinc-aluminium alloy coatings.See figure 2, which compares the coating loss of Aludip BQwith two other coatings. Zinc coating protect the steel substratethrough sacrificial oxidation. However, the zinc salts formed inthat process are constantly washed away, leaving the steelexposed. Aluminium protects the steel substrate by forming athin film of aluminium oxide, which does not wash off. The hot-dip aluminium-silicon alloy coating on Aludip high-integritysteels protects the steel substrate by forming an inert barrier.Cut edges and areas of subsequent damage corrode slightly,but stabilise in a short time, preventing corrosion formsignificantly impairing long-term performance.

The additional organic coatings on Aludip BQX and AludipBQHE further enhance their corrosion resistance.

Figure 3: Neutral salt spray testProduct Time to first corrosion (hours)BQ 1000BQX >1000BQHE >1000

High Temperature oxidation resistanceAludip high-integrity steels have excellent resistance tooxidation at elevated temperatures.

Heat resistance and reflectivityAludip BQ reflects approximately 80% of incident light and heat

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Aludip BQContinued

at temperatures up to 500 deg C. Above that temperature, thesurface lustre is lose. At 500 deg C, all Aludip products retainhalf their mechanical strength; the integrity of the steel ismaintained up to approximately 1300 deg C. Aludip high-integrity steels are non-combustible as defined in BS 476, Part4. See figure 5 below.

Figure 5: Heat reflectivityTypical heat reflectivity (%) over timeMaterial Start 1 year 4 yearsAludip BQ 89.5 80.3 52.7Galvanised Steel 94.2 62.1 5.0Aluminium 94.8 80.4 58.7

Note: Typical figures (for guidance only) on the heat reflectivityof Aludip BQ and two other common materials.

Sag resistanceGood sag resistance means Aludip BQ high-integrity steelscan be used at elevated temperatures without sufferingdistortion.

Zinc-freeAludip high-integrity steels are zinc-free, and can therefore beused safely with stainless steel. They are free from risk ofliquid-zinc embitterment, which can cause stainless steel tofracture.

Abrasion resistanceThe abrasion resistance of Aludip BQ is at least as good asmild steels and galvanised steels.

FormabilityAludip high-integrity steels will withstand moderate lockseaming and forming and can be bent over a diameter equal totwice the thickness of the sheet. The metallic and organiccoatings are as formable as the steel substrate and will notflake or peel. Furthermore, the silicon incorporated in themetallic coating allows a thinner alloy layer with greaterductility than a pure aluminium coating.

PaintingThe superior corrosion resistance of Aludip BQ means thatunder normal conditions, it does not need painting. If theapplication requires painting, Aludip BQ has been tested by thePaint Research Association and found to be an excellent basefor paint, especially heat-resistant paint, with no need forexpensive pre-treatments. An initial primer coat can befollowed by a topcoat with a dry film thickness of less than halfthe 125 micrometres, usually recommended for exteriordurable systems.

CharacteristicsProduct range

Aludip BQHot-dip aluminium-silicon alloy coating on both sides.

Aludip BQXHot-dip aluminium-silicon alloy coating and organic coating onboth sides.

Aludip BQHEHot-dip aluminium-silicon alloy coating with high-emissivityorganic coating on top side and standard organic coating onreverse.

The applications of these products are described more fully onpages 1 and 2.

StandardAludip high-integrity steels are manufactured to EN 10154:2002, employing Quality Assurance principles, operatingpractices and controls certified to ISO 9001:2000.

Aludip conforms to other national and international standards,including ISO 5000, NFA 36/340, ASTM A463M, JIS G3114,and several proprietary specifications.

CoatingsMetallic coating mass.Hot-dip aluminium-silicon alloy coating mass: 240-270g/m2(Triple spot test).

BQX organic coating17um on top side and 10um on reverse. Topcoat colour isavailable in white or standard grey. Consult Sealumet aboutother colours.

BQHE organic coating25um high-emissivity on top side and 10um on reverse.Top coat colour is special grey. Consult Sealumet about othercolours.

DimensionsFigure 6 below shows the thickness and width manufacturinglimits for wide coils. ??

TolerancesTolerances on thickness, width, flatness and edge camberconform to EN 10143 : 2002. “Thickness” refers to the totalthickness of the product, including its coating. It is measured atleast 40mm from either edge or at the centre line.

Figure 7 below shows the tolerances on thickness. For coils1200mm wide or less, the tolerance on width is -0+5mm; forcoils greater than 1200mm wide, the tolerance on width is -

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Aludip BQContinued

0+6mm.

Figure 7: Tolerance on thicknessNominal thickness Tolerance for a nominal width of> < <1200 >12000.50 0.60 0.06 0.070.60 0.80 0.07 0.080.80 1.00 0.08 0.091.00 1.20 0.09 0.101.20 1.60 0.11 0.121.60 2.00 0.13 0.14

Note: Half thickness tolerances are available. Please consultus for information.

Please consult Sealumet for details of additional processingservices, including the dimensions of cut lengths, profiles andother processed products.

Surface quality and treatmentAludip high-integrity steels are skin-passed to the requirementsof EN 10154 : 2002, surface ‘B’. Aludip BQ can be suppliedwith chemical passivation, protective oil, or both.

PackingPlain banded, paper wrapped, or full export packing isavailable.

Coil weightThe maximum coil weight is 19 tonnes.

Other specificationsPlease consult Sealumet for information about the availabilityof specifications outside those shown in this section.

The advantages of Aludip high-integrity steels• Low-cost alternative to stainless steel and aluminium • Greater mechanical strength than aluminium, allowing

lighter gauges to be used• Higher melting point of aluminium (650-660 deg C)

compare with zinc (419 deg C)• No risk of extensive pools of melted aluminium in a fire,

due to the low aluminium content of Aludip• Where material is to be painted, Aludip’s excellent

corrosion resistance saves on pre-treatments and paint• Safe to use with stainless steel• Products with enhanced appearance available

Using Aludip high-integrity steelsAludip high-integrity steels are high-performance products that

will give excellent service. Their performance is enhanced byproper processing and by good practice in end-product design.

Sealumet can help you choose the right Aludip product for yourapplication and can advise you on proper processing methodsto obtain the best results. Consult Sealumet for moreinformation about using Aludip high-integrity steels.

FabricationThe tightly adherent coating and its relatively thin alloy layergive good fabrication properties. Because the coating isrelatively soft, tolls should be well lubricated and more careshould be taken when fabricating Aludip high-integrity steelsthan when fabricating uncoated mild steel.

Welding Aludip BQGood welded joints can be obtained using most conventionalprocesses, together with modified procedures adapted to thespecial properties of the alloy coating. Resistance welding byspot or seam welding systems gives the same mechanicalstrength as welding bare steel. BS 1140 contains theparameters for spot welding; BS 6265 for seam welding.

Equally effective are rare metal active gas welding systems(sometimes called gas metal arc), which use consumableelectrode wire and gas shields such as argon or carbondioxide, or a mixture of the two. Pulsed metal active gassystems offer considerable advantages over conventionalprocesses, including more control over penetration and aminimum of spatter.

Consult Sealumet for advice about weldability of Aludip BQ.Aludip BQX and BQHE are not suitable for welding.

PaintingAludip BQX and Aludip BQHE are both pre-painted. Aludip BQprovides an excellent base for paint, both in its passivated andunpassivated forms.

StorageAludip BQ is normally supplied in the oiled and chromatedcondition to reduce the risk of water staining. However, it isessential that both sheet and coil be stored in dry, protectedconditions before use. The ingress of water or condensationcan lead to unsightly surface staining. Careful and well-managed storage will prevent such problems.

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Data Sheets · PDF fileThermal Insulation Products - Jacketing & Cladding Sealumet (Australia) Pty Limited Mailing Address : PO Box 2218, Warwick, Perth, WA, 6024 Warehouse

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