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1TV SD Industrie Service GmbH

Update on the comparison ofselected issues of the ASME Code(Sect. VIII) with EN standards

Druckgertetage, Mnchen, June 2011Dr. Robert Kauer / Dr. Jrgen Deininger

[email protected]


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Content

Introduction

Updated considerations regarding- Material- Allowable stress values- Design Basics

Summary


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Content

Introduction


Summary


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Some existing statements

Die europische Druckbehlternorm EN 13445 was lange whrt

Verffentlichung DIN Mitteilungen: Normenausschuss Chemischer Apparatebau (FNCA) im DIN, Feb. 2011

und es deutet vielesdarauf hin, dass sie mitsteigender Akzeptanz imEWR auch aufinternationalem Parketteine fhrende Rollespielen wird.


5/335TV SD Industrie Service GmbH

EC Comparative Study Results

Comparative Study on Pressure Equipment Standards, Summary, EC DG Enterprise, Contract No. FIF.20030114, July 2004

DBF: Design by FormulaDBA: Design by AnalysisPED: Pressure Equiment

Directive



Some existing statements pro EN

*1) Comparative Study on Pressure Equipment Standards, Summary, EC DG Enterprise, Contract No. FIF.20030114, July 2004

The fracturetoughness conceptin the ASME is less

conservative


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ASMEs legal standing

Legislation at the location of the plant

(e.g. Minnesota, New York City, Quebec, Dubai, Sarawak, )

Section I

Power boiler

Section III

Nuclear power

Section IV

Boiler

Section VIII

Pressure vessel

Section X

Fiber plastics

ASME Piping Code

ASME B31.1Power piping

ASME B31.3Process piping

Construction Codes

Reference Codes Section IIMaterial

Section VNDT

Section IXWelding/Brazing

In-service-Codes Section VIBoiler

Section VIISteam boiler

Section XINuclear power

Standards, recommendations ANSI ASTM AWS ASNT

Authority at the location of the plant with references to- National Board Inspection Code NBIC- API In-service Codes e.g. API 510

API

ASME Boiler & Pressure Vessel Code

NACE


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Some facts around ASME

1915 First ASME Boiler Code (now Sect. I)1924 First Unfired Pressure Vessel Code (now Sect. VIII)1963 First Proposal for Nuclear Code (Sect. III)1968 Alternative Rules for Unfired Pressure Vessels (Sect. VIII Div. 2)1997 High Pressure Code (Sect. VIII Div. 1)2007 Re-written Sect. VIII Div. 2

Today 28 books embedded into the US standardization systemContinuously new editions publishedCode Case System

700 technical committees continuously working (consensus process)

Over 3800 Volunteers (~10% International)

Until 1971 certification activities limited to USA and Canada, meanwhile expandedto 75+ countries, accepted in 100+ countries, and translated into Chinese, French,Japanese, Korean, Portuguese, Spanish and Swedish

Strong relation to in-service initiatives and user groups like API, NACE, .


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ASME Life Cycle Management

Risk Analysis and

Inspection PlanningCodes/Standards

New ConstructionCodes and Standards

InspectionFindings?

Repair orReplace?

Repair or Replacementper In-Service RepairCodes and Standards

Sucessful?

Fitness for ServiceCodes and Standards

Decommission

Yes

Yes

YesNo

No

No

Results

Results

Inspect

Operate

Sect. VIII API 620

PCC-3 API 580 API 510

NBIC API 579

PCC-2NBIC

API 510PTB-2-2009 Guide to Life Cycle Management of Pressure Vessel Integrity


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Content

Introduction

Updated considerations regarding- Material- Allowable stress values- Des ign Bas ics

Summary


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Material: Essential Safety Requirements

Source:http://ec.europa.eu/enterprise/sectors/pressure-and-gas/documents/ped/materials/index_en.htm


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PED: Particular Material Appraisal

Source:http://ec.europa.eu/enterprise/sectors/pressure-and-gas/documents/ped/materials/index_en.htm


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ASME Code: Listed Material, e.g. VIII-1

UNS (Unified Numbering System)Sxxxxx: Heat and corrosion resistant (stainless) steels

SA312


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Some Supplementary Requirements to SA-516


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Summary Material

Both systems (EN and ASME) generally allow the use of each other material

In case material shall be used in both systems dual certified material

To specify the material in a sufficient and economic way, specific comparison

between the EN and ASME Specifications is required. Do not rely on generalstatements.

Material specification shall be mainly driven by the needs for the intended service(good sources are standards like API, NACE, Dechema, )

Make use of supplementary requirements in the specifications.

Do not over-specify


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Specification example

Service susceptible to Polythonic Acid Stress Corrosion CrackingStabilizing Heat Treatment and IGC are recommendations from API and NACEstandards


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Content

Introduction

Updated considerations regarding- Material- Allowable stress values- Design Bas ics

Summary


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Allowable Stresses EN 13445

below the creep range


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Allowable Stresses ASME Sect. II Part D

S T Tensile strength at room temperatureS Y Yield strength (0.2%) at room temperature

RT ratio of the average temperature dependent trend curve value of tensile strength to the roomtemperature tensile strengthRY ratio of the average temperature dependent trend curve value of yield strength to the room

temperature yield strengthS Rave Ave. rupture stress 100,000 hoursS Rmin Min. rupture stress 100,000 hoursS C Ave. stress to cause a creep rate of 0.01%/1,000 hoursFavg Below 815C = 0.67

for Sect. VIII, Div. 1


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Allowable Stresses ASME Sect. II Part D

for Sect. VIII, Div. 2


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Updated allowable stress value comparison

0

20

40

60

80

100

120

140

160

180

0 100 200 300 400 500 600

A l l o w a b

l e S t r e s s

[ M

P a ]

Temperature C

Plate SA/EN 10028 P295GH andEN 13445 EN 10028 P295GH (1.0481)

EN 13445 Allowable (100 - 150 mm)

Sect. VIII Div. 1 Allowable (100 -150 mm) max: 500Cmax: 538C


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0

20

40

60

80

100

120

140

160

180

200

0 100 200 300 400 500 600

A l l o w a b

l e S t r e s s

[ M P a

]

Temperature C

Plate SA-516 Gr. 70 and P295GH (1.0481)

EN 13445 Allowable (< 16 mm)

EN 13445 Allowable (60 - 100 mm)

Sect. VIII Div. 2 Allowable

Sect. VIII Div. 1 Allowable max: 500Cmax: 538C


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0

20

40

60

80

100

120

140

160

180

0 100 200 300 400 500 600 700 800

A l l o w a b

l e S t r e s s [ M P a ]

Temperature C

Plate SA-240 304 and X5CrNi1810 (1.4301)

EN 13445 Allowable

Sect. VIII Div. 2 Allowable

Sect. VIII Div. 1 Allowable 0.9 SYSect. VIII Div. 1 Allowable

max: 550C

max: 816C


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Summary Allowable Stresses

Do not rely on general statements. Specifically compare the material at theintended temperature

When using the ASME code always consider the option for using Sect. VIII, Div. 2

When comparing austenitic steels also consider the 90% yield option provided formany materials

The ASME system is much less susceptible to user errors by providing simpletables with the allowable stresses (no need for calculation of the allowable stress)


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Content

Introduction

Updated considerations regarding- Material- Allowable stress values- Design Bas ics

Summary


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Design Concepts

EN 13445 ASME VIII-1 ASMEVIII-2

Design by Formula + App. + Codes Cases

Design by Analysis No, but U-1

Design by Fracture Mechanics No No

Loads other than Pressure No, but UG-22

Fatigue Design No, but UG-22


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Allowable Design Cycles

EN 13445 ASME VIII-2Example 3 33 576 > 5x10 6

Example 4 Batch 13 100 200x10 6

Example 4 Stirrer 212 000 > 10 11

SNP-PT-007, Comparison of Pressure Vessel Codes ASME Section VIII and EN 13445, Technical, Commercial, and Usage Comparison, Design Fatigue Life Comparison

EN 13445 ASME VIII-2Example 3 RT+VT 33 576 N/A

Example 3 no NDT 8 600 6 450

Example 4 Batch 13 100 12 500

Example 4 Stirrer 212 000 1 100 000


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Content

Introduction


Summary


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ASME Cost comparison (excerpt)

Cost

SNP-PT-007, Comparison of Pressure Vessel Codes ASME Section VIII and EN 13445, Technical, Commercial, and Usage Comparison, Design Fatigue Life Comparison

Costs in a CleanFuel Project


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The ASME answer

Overall number of registrations on file at the endof 2010 was 45.713.776Comparison of Pressure Vessel Codes ASME Sect. VIII

and EN 13445, Technical, Commercial, and UsageComparision, Design Fatigue Life ComparisonSTP-PT-007, Dec. 2006

National Board Bulletin, Fall 2010

0

200000400000600000800000

1000000120000014000001600000

2006 2007 2008 2009 2010

1.495.632 1.572.626 1.563.665

1.357.3791.211.711

Total Number of Boilers and PV registeredwith the National Board

% ASME VIII-1ASME VIII-2

Others

EN 13445


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Downstream new projects (in $ bn)

EIC Database


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ASME Stampholders

[1023][1004]

[20]

[3496][3467]

[1388][1087]

[116]

[14][9]

[28]

[ ] - 04/2011[ ] - 07/2010

[82][77]

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