INTRODUCTION Hongkong Ruikun Holdings Group Co., Ltd. is modern enterprise focusing on steel trading and investment internationally. We are performance.

INTRODUCTION

Hongkong Ruikun Holdings Group Co., Ltd. is modern enterprise focusing on

steel trading and investment internationally. We are performance as wholesale

r, stockist, agent, processing and logistics company and being as strategic sal

es partner of over 30 mills worldwide.

Shanghai Ruikun Metal Materials Co., Ltd., one of the largest member of our g

roup, mainly doing steel products in hot rolled series, cold rolled series, stainle

ss steel and constructional steel materials. Keeping good partnership relations

with Baosteel, Wisco, Ansteel, Shasteel, Sinosteel, POSCO, NSC etc., and go

od resources help us being one of the top steel trading company in recent yea

rs.

We operate depends on "honest & trusty", "win-win" model all the time, thus m

akes us a good reputation in steel industry in China. We sale over 300,000 ton

s every year and developed several subsidiary companies or office in costal ci

ties in China.

We hope to cooperate with steel trading or end user companies worldwide. Ai

ming at a long term, stable, both-win partner for steel business.

HRC

GB

STANDARD NO. EXAMPLES REMARKS

GB/T 912 GB/T 3274 Q235A 、 Q235B 、 Q235C 、 Q235D Q345A 、 Q345B 、 Q345C 、 Q345D 、 Q345E ， ETC. HR LOW CARBON AND LOW-ALLOY STEEL

INTERNATIONAL STANDARDS

JIS

STANDARD NO. EXAMPLES REMARKS

JIS G 3101 SS330 、 SS400 、 SS490 、 SS540 GENERAL STRUCTURAL STEEL

JIS G 3106SM400A 、 SM400B 、 SM400C 、 SM490A 、 SM490B 、 SM490C 、

WELDING STRUCTURAL STEELSM490YA 、 SM490YB 、 SM520B 、 SM520C

JIS G 3131 SPHC 、 SPHD 、 SPHE HOT ROLLED LOW CARBON STEEL

JIS G 3132 SPHT1 、 SPHT2 、 SPHT3 TUBE MAKING STEEL

DIN

STANDARD NO. EXAMPLES REMARKS

DIN EN 10111 DD11 、 DD12 、 DD13 GENERAL STRUCTURAL STEEL

DIN EN 10025 S235JR 、 S235JRG2 、 S275JR NON-ALLOY HR STRUCTURAL STEEL

DIN 17100 St33 、 St37-2 、 St37-3 、 St44-2 、 St50-2 、 St52-3 GENERAL STRUCTURAL STEEL

ASTM

STANDARD NO. EXAMPLES REMARKS

A36 A36 STRUCTURAL STEEL

A568 SAE1006 、 SAE1008 、 SAE1010 、 SAE1012 、 SAE1018 HOT ROLLED HIGH STRENGTH, LOW-ALLOY STEEL

A570 Grade33 、 Grade36 、 Grade40 、 Grade45 、 Grade50 、 Grade55 HR CARBON STRUCTRAL STEEL

A572 Grade50 、 Grade55 、 Grade65 、 A572LOW CARBON HIGH STRENGTH WITH Nb/V STRUCT

URAL STEEL

API

STANDARD NO. EXAMPLES REMARKS

API 5L Gr.B.X42 、 X46 、 X52 、 X56 、 X60 、 X70 LINE PIPE MAKING STEEL

SPECIFICATIONS

THICKNESS (mm) WIDTH (mm) REMARKS

COILS: 1.5-2.5-20 PLATES: 6-100-300

COILS: 1000-1500-2010 PLATES: 1000-2500-4020

COIL ID: 760mm(+20mm/-30mm) PLATES: MID-PLATES, SHIP BUILING PLATES

CRC

Cold-rolled Strip in Coil

Description Steel Grade

Carbon sheet SPCC St12 DC01 Q235AB﹑ ﹑ ﹑

High-quality sheet 20-45# 08-15#﹑

High-quality carbon steel 08AL

Low carbon deep-drawing sheet SC2 SPCE ST14 DC04﹑ ﹑ ﹑

Extra-deep drawing quality sheet SC2 St15 DC05 SC3 St16 DC06 St17﹑ ﹑ ﹑ ﹑ ﹑ ﹑

Corrosion-resistant steel 05CuPCrNi 09CuPCrNi Q345GNHL﹑ ﹑

Low carbon drawing sheet SPCD ST13 DC03﹑ ﹑

Deep-drawing sheet SPCEN

Cold-rolled Silicon Steel available 　 　 　

JIS G3141-1996 EN10130-1999 DIN 1623(1)-1983 ASTM A1008-02el GB/T 5213-2001 ISO3574-1994

SPCC DC01 St12 CS - CR1

SPCD DC03 RRSt13 DS - CR2

SPCE DC04 St14 DDS SC1 CR3

SPCEN DC05 - EDDS SC2 CR4

- DC06 - - SC3 CR5

Standard and appliation details in catalogue.

Specification ： width≤1500mm ， thickness 0.12mm~3.5mm

Coil weight ： Max15MTs ， Inside diameter ： 508/610mm

Surface finish: dull or bright

WIRE ROD

NO. NAME SEEC.（mm） GRADE STANDARD

1 低碳钢热轧圆盘条 ф5.5-ф20 Q195 、 Q215 、 Q235 GB/T 701-2008

2 优质碳素钢无扭控冷热轧盘条（国标牌号） ф5.5-ф2008 ～ 85

GB/T 4354-200815Mn ～ 70Mn

3 中高碳钢无扭控冷热轧盘条 ф5.5-ф20SWRH27 、 SWRH32 、 SWRH37 、 SWRH42A （ B ）～ SWRH82A

（ B ）、 72B-1

JIS G 3506-2004

Q/320582 SG6-2007

4 冷镦钢无扭控冷热轧盘条 ф5.5-ф20SWRCH6A ～ SWRCH22A 、 SWRCH10K ～ SWRCH50K 、 ML08A

l 、 ML40Cr 、 ML20MnTiB 、 ML35CrMo 、 ML42CrMo

JJIS G 3507-2005

Q/320582 SG7-2009 GB/T 6478-2001

5 预应力钢棒用无扭控冷热轧盘条 ф8 、 ф10 、 ф12 、 ф14

30MnSi 、 30Si2Mn Q/320582 SG15-2008

6 重要用途弹簧钢丝用无扭控冷热轧盘条 ф5.5-ф20 60Si2MnA 、 65Mn 、 55SiCrA Q/320582 SG16-2009

7 优质碳素钢无扭控冷热轧盘条（美标牌号） ф5.5-ф20 1005 ～ 1095SG1008ASTM A510-2006

Q/320582 SG17-2007

8 钢帘线用无扭控冷热轧盘条 ф5.5 、 ф6.5 SGLX72A 、 SGLX82A Q/320582 SG19-2004

9 制丝用非合金钢盘条 ф5.5-ф20C4D ～ C38D 、

YB/T 170.2-2000C42DA （ B ）～ C92DA （ B ）

10 钢棉钢用无扭控冷热轧盘条 ф6.5 SGM SGJX-004-2005

11 气体保护焊丝用无扭控冷热轧盘条 ф5.5 、 ф6.5 ER70S-3 、 ER70S-4 、 ER70S-5 、 ER70S-6 、 SG70S-6 Q/320582 Q/320582 SG18-2009

12高强度预应力钢丝钢绞线用 SWRH82B-1 热轧盘

条 ф11-ф13 SWRH82B-1 SGJX-001-2006

13 预应力钢丝钢绞线用 SWRH82B 热轧盘条 ф11-ф13 SWRH82B SGJX-008-2005

14 预应力镀锌钢丝及钢绞线用盘条 ф 11- ф 13 SWRS82B Q/320582 SG31-2009

15 低碳钢纤维用无扭控冷热轧盘条 ф5.5 D42D/006 SGJX-005-2005

16 SG82B 热轧盘条 ф5.5-ф8 SG82B SGJX-009-2005

17 铜包钢丝用无扭控冷热轧盘条 ф 5.5- ф 8 SG6 ～ SG55 Q/320582 SG101-2006

18 钢筋混凝土用热轧光圆钢筋 ф 6- ф 20 HPB235 、 HPB300 GB 1499.1-2008

19 钢筋混凝土用热轧带肋钢筋 ф 6- ф 12HRB335 、 HRB400 、 HRB500 、 HRB335E 、 HRB400E 、 HRB50

0EGB 1499.2-2007

REBAR

NO. NAME SPEC（mm） GRADE STANDARD

1 DEFORMING HRB ф10-ф32HRB335 、 HRB400 、 HRB500 、 HRB335E 、 HRB400E 、 HRB5

00EGB 1499.2-2007

2 CARBON REBAR ф10-ф32 BS460B BS4449 ： 1997

3 REBAR ф10-ф32 GR60 ASTM A 615

PLATE

NO. CLASSIFCATION EXAMPLES STANDARD

1 CARBON STRUCTURAL STEELQ235 、 Q255 、 Q275 GB 3274

SS330 、 SS400 、 SS490 、 SS540 JIS G3101

2 LOW-ALLOY STRUCTRRAL STEEL

Q295 、 Q345 、 Q390 、 Q420 、 Q460 、 Q550 、 Q690 GB 3274

A36 、 A283 、 A529 、 A633 ASTM

SM400 、 SM490 、 SM570 JIS G3106

3 STRUCTRUAL STEEL

SN400 、 SN490 JIS G3136

Q235GJ 、 Q345GJ GB/T 19879

A572 、 A573 ASTM

4

WEATHER-RESISTING STEEL SMA400 、 SMA490 JIS G3114

BRIDGE BUILDING STEEL PLATE

Q235q 、 Q345q 、 Q370q 、 Q420q GB714

SM490 、 SM540 、 SM570 JIS G3106

A709 Grade 50 、 50W 、 A572 100 、 100W ASTM

5 SHIP BUILDING STEEL PLATEA 、 B 、 D 、 E 、 AH32 、 DH32 、 EH32 、 AH36 、 DH3

6 、 EH36 、 AH40 、 DH40 、 EH40 、 FH32 、 FH36 、 FH40

GB712 CCS ， ABS ， GL LR ， NK,ETC.

6 OIL PIPE MAKING STEEL GR.B,X42 ～ X65 、 X70 、 X80 API 5L

7 BOILER STEEL

Q245R 、 Q345R GB 713

SB410 、 SB450 、 SB480 JIS G3103

HII 、 19Mn6 DIN 17155

SPV235 、 SPV315 、 SPV355 、 SPV490 JIS G3115

A202 、 A516 、 A299 、 A537 ASTM

16MnDR,09MnNiDR GB 3531

NO. CLASSIFCATION EXAMPLES STANDARD

8 PRESSURE VESSEL STEEL

16MnR 、 15CrMoR GB 6654

SPV235 、 SPV315 、 SPV355 、 SPV490 JIS G3115

A202 、 A516 、 A299 、 A537 ASTM

16MnDR,09MnNiDR GB 3531

9 ENGINEERING MACHINERY STEEL PLATES10C-S58C JIS G4051

Wel-Ten 590 、 610 、 690 NSC

GALVANIZING

NO. CLASSIFICATION EXAMPL GRADES STANDARD

1 COMMERCIAL GRADE

DC51D+Z GB/T 2518-2008

DX51D+Z BS EN10346-2009

CS TpyeA 、 CS TpyeB ASTM A653/653M-2009

SGCC 、 SGCD1 JIS 3302-2007

2 DEEP DRAWING

DC52D+Z GB/T 2518-2008

DX52D+Z BS EN10346-2009

CS TpyeC ASTM A653/653M-2009

SGCD2 JIS 3302-2007

3 OVER DEEP DRAWING

DC53D+Z GB/T 2518-2008

DX53D+Z BS EN10346-2009

CS TpyeC ASTM A653/653M-2009

SGCD3 JIS 3302-2007

4 STRUCTUAL USAGE

S220GD 、 S250GD 、 S280GD 、 S320GD 、 S350GD 、 S550GD GB/T 2518-2008

S220GD 、 S250GD 、 S280GD 、 S320GD 、 S350GD 、 S550GD BS EN10346-2009

SS230 、 SS255 、 SS275 、 SS340 、 SS380 、 SS410 、 SS480 、 SS550

ASTM A653/653M-2009

SGC340 、 SGC400 、 SGC440 、 SGC490 、 SGC570 JIS 3302-2007

PPGI

1) Product introduction

This most widely used prepainted steel sheet is covered with polyester paint material that is baked on to its surface. Polyester prepaint

ed steel sheet is used for exterior panels and interior design purposes that do not require excessive processing.

-Prepainted steel sheet is coated or baked with paint containing polyester resin.

-Most widely used. Generally displays superior workability, durability, and weather resistance.

-Used for a variety of purposes; offered in a wide array of colors and degrees of polish.

-Sandwich panel, lightweight partition, roof panel, water gutter, shutter, door, boiler cover, iron frame furniture.

2) Cross section of painted product

Note 1) Materials used for prepainted steel sheet: GI, GA, EGI, SGL, AL, BP, TFS, TP, SUS, ALCOT etc.

Note 2) 2COAT 2BAKING is available for coating layer on both the top and back sides.

3) Size availability 

4) Coating process and coating thicknessProcess: 2Coat 2Bake/ 2Coat 1Bake

5) Base metal: GI, GL, GA6) Color sheets: As required SAMPLE based on RAL COLOR SHEETS

SS STEEL

Applicable Standard of Products:

Japanese industrial standard ： JIS G4305-1999

Chinese specification(GB)

American specification(ASTM 、 AISI)

European specification EN100882

Grade Characteristics Application

SUS301HTSUS304HT

High hardness, high strength ， and high fatigue strength Automobiles, electronic products,and spring sheet steel

SUS304

Widely used; corrosion resistant 、 heat resistant, good mechanical properties in low temperature, good drawabity and bending treatment properties without thermal treatment hardening, no-magnetic

Domestic appliances (Kitchen utensils of category 1 and 2), cupboard, indoor pipes, heater, boiler, automobile parts, medical apparatus, building material, chemical equipments, food processing industry, agriculture, watercraft parts

SUS304CuWith the addition of Cu, 304Cu has good formability, in particular goo

d deep drawablityDomestic appliances 、 thermos bottles 、 kitchen sinks 、 bathtub etc

SUS304Ni9304Ni9 made is created by increasing the Ni content in 304,has good f

ormability, in particular good deep drawablityDomestic appliances 、 thermos bottles 、 kitchen sinks 、 bathtub etc

SUS304L304L is made by lower carbon 304 type.Better intergranular corrosion

resistance than 304, it possesses corrosion resistance properties without undergoing heat treatment

Machinery and tools used in the chemical 、 coal and petroleum industries that require intergranual corrosion resistance, building material, heat resistant parts and parts that are difficult to heat treat

SUS316Higher corrosion resistant, higher-heat resistant, can be used in

very severe conditions, with less work hardening, no-magnetic

Sea water treatment equipments, chemical industry, dye making, paper mill, herbal acid, fertilizer production equipments, photography, food processing industry, coastal installations

SUS316L316L is made by lower carbon 316 type. Better intergranular corrosion

resistance than 316, can be used in very severe conditions, with less work hardeding, no-magnetic

Sea water treatment equipments, chemical industry, dye making, paper mill, herb acid, fertilizer production equipments, photography, food processing industry, coastal installations

SUS321With the addition of Ti, thereby prevent intergranular corrosion. Heat-

resistant, high-temperature resistant and antioxidizing in high-temperature

Heat-resistant material,???? automobiles, aerocraft ventilation pipings, boiler cover, pipings, chemical devices and heat-exchanger

SUS301301 steel has lower Cr? Ni content than 304.lts strength

increased by cold workingTrains, aircraft, belt converyors, vehicles spring

SUS301L301L is made by lower carbon 301 type. Better intergranular corrosion

resistance than 301, strength increased by cold workingFrame of Trains, building exterior material

Grade Characteristics Application

SUH409LGood malleability weldability, antioxygenic property in high-tem

perature to 800℃Widely used in tailpipe exhaust system for automobiles

SUH410L

With a better tenacity, plasticity, cold deformability and weldability; with good bending properties, processing behaviors, high temperature and oxidation resistant performance in the welding part

Applicable for such as refrigerated container, auto front pipes, nozzles, boiler fumaces, inversion covers, middle tubes, muffler parts, and dishware

SUS430Low thermal expansibility, good malleability and antioxygenic pr

opertyHeat-resistant utensils, combustion devices, domestic appliance,

kitchen utensils category No2 and kitchen sink

SUS436LWith the addition of Mo Ti Nb, it has good corrosion resistance, dr

awability and weldabilityAutomobile exhaust pipings, boiler

SUS444With the addition of Mo Ti Nb, it has good corrosion resistance, dr

awability and weldability, stress and corrosion resistance properties better than 316

Automobile exhaust pipes, water supply facilities, water tank

SUS420J2 High Post-quenching strength Tools, pipe nozzles, valves, metal-rules and cooking utensils