pipes with various sizes, materials and specification.
Welkin supply different sizes and grades coils&plate for oil& gas , shipbuilding, infrastructure.etc
Valves with different application, even customized
Welkin provide costomized services for our clients for specific project requirements.
Plate&Coil
Hot rolled coil
Main products
electrical steel | weather-resistance steel | high strength low alloy steel | medium carbon steel |
oil casting pipe steel strip | automobile steel | pipeline steel strip | Low carbon steel |
gas cylinder steel | hull structure steel | checkered steel strip | |
Application
Hot rolled products are widely used in automobile, Household appliance, pipeline, bridge, mechanical manufacture, storage and other fields.
Product size
(0.8-25.4mm)×(800-2130mm)
Products catalogue
Classification | Specification | Typical grade | Standard |
Hot rolled strip for automobile | |||
Hot rolled strip for automobile frame | 420L、440L、510L、550L、610L、700L、750L、850L | GB/T3273-2005、2011JX25、JT001-2014 | |
Hot rolled strip for automobile structure | QStE340TM—QStE550TM、SAPH310—SAPH440 | JT025-2015、2013JX103、JT006-2011 | |
Hot rolled high strength strip for automobile structure | SPFH490、SPFH540、SPFH590 | JIS G 3113:2006、JIS G 3134:2006 | |
Hot rolled strip for automobile wheel | 330CL—590CL、HZ330CL—HZ590CL | JT020-2015、YB/T 4151-2006 | |
Hot rolled strip for automobile body | C600XT、C700XT | GL:2009 | |
Hot rolled strip for cold forming | S355MC、 S420MC、S500MC | 2013JX39、2013JX107、2013JX107、2014JX079 | |
Hot rolled strip for hot stamping and forming | 22MnB5、27MnCrB5、 30MnB5、38MnB5 | 2013JX30、 2013JX112、 2013JX111、 2015JX077 | |
Hot rolled strip for oil pipeline | |||
Hot rolled strip for pipeline of crude oil and natural gas transformation | L245R、L290R、 L245M—L450M、 X42M—X65M | Q/TB 208、2011JX35 | |
Hot rolled strip for hull structure | |||
Hot rolled strip for hull structure | A32、A36、D32、D36 | ||
Hot rolled weathering strip | |||
Hot rolled weathering steel for structure | SPA-H、Q355NH、Q355GNHA、Q355NHA、Q450NQR、 Q295GNH、Q345GNH、 Q390GNH、SMA400CP、 SMA490CP | JT007-2013、 JIS G 3125-2010、 GB/T 4171-2008 | |
Hot rolled strip for acid sulfuric and dew point corrosion resistance | Q315NS、09CrCuSb、 09CuPCrNi-A | GB/T 28907-2012、 JT005-2014 | |
Hot rolled carbon structure steel strip | |||
CE certification for export | S235JR、S275JR、S355JR、S235J0、S275J0、S355J0、S235J2、S275J2、S355J2(M1)、S355K2 | EN10025-2:2004 | |
High strength low alloy steel for export | CJ500V、Grade50、Q345A、Q345B、Q345C、 Q345D、Q390C、Q420B、Q460B、Q460C、 Q550C、Q550E、Q690C、Q690D、Q690E | Q/TB 202-2015、 2012JX75、2014JX20 | |
Hot rolled alloy structure steel | 20Cr、40Cr、75Cr、65Mn、15CrMo | 2014JX061、 2012JX22、 GB/T24181-2009、 JT011-2015 | |
Hot rolled strip for elevator | Q235DT | 2015JX122 | |
carbon steel | Q195、Grade36、GradeC、GradeD、 Q235A、 Q235B、SS330、SS400 | Q/TB 202-2015、 GB/T 3274-2007 | |
carbon steel for export | A36(Cr)、SS400(Cr) | 2014JX116、2012JX64、2012JX56、2012JX11 | |
Hot rolled quality carbon steel strip for export | |||
Hot rolled carbon structure steel | SAE1006、SAE1008、SAE1025、SAE1010、 SAE1012、SAE1015、SAE1020、SAE1022 | 2013JX24、2012JX28、2013JX54、2015JX102 | |
Hot rolled carbon structure steel for pipe | SPHT1、SPHT2 | 2013JX64、2014JX065 | |
Hot rolled quality tool steel strip | |||
Hot rolled quality carbon structure steel strip | 20、35、45、50、55、60、40Mn、 50Mn、 65Mn、75Cr1 | GB/T 711-2008 (≥3.0)、JT017-2010(<3.0) | |
Hot rolled strip for cold forming | |||
Hot rolled strip for cold forming | SPHC、SPHD、StW22、SPHE、 SPHCB、DD11、 SPHC-DF | Q/TB 203-2013、2014JX045、2014JX015、 2013JX40 | |
checkered steel strip | |||
Hot rolled checkered steel strip | A36、Grade36B、Q195、 Q235A、Q235B、 SS330、SS400 | 2015JX006、2014JX089、2014JX36、 Q/TB 209-2014、2015JX007、2012JX1 |
Main products
Heavy plates
carbon structural steel plate | pipeline steel plate | weather resistance steel plate for welding structure | hydrogen sulfide corrosion resistant steel plate for petrochemical engineering |
high strength low alloy steel plate | bridge construction steel plate | boiler and pressure vessel steel plate | automative frame steel plate |
high strength low welding crack sensitivity steel plate for hydro pressure pipe | high strength wear resistant steel plate | quality carbon structural steel plate | mould steel plate |
teel plate for military use | ship building and offshore oil platform steel plate | high rise building structural steel plate | |
Application
Product size
Width:800-4020mm,thickness:6-700mm,length:4000-27000mm
Products catalogue
Classification | Typical grade | Standard | Main application |
boiler and pressure vessel steel plate | |||
Q245R-Q370R 12MnNiVR 16MnDR SB410,SB450,SB480 SPV235,SPV315,SPV355 SPV410,SPV450,SPV490 SGV410,SGV450,SGV480 SBV1A,SBV1B,SBV2,SBV3 H I,H II,10CrMo910,15Mo3 (S)A299M (S)A516M(Gr.60,65,70) P235GH,P265GH,P295GH P355GH,16Mo3,13CrMo4-5 10CrMo9-10,11CrMo9- | GB713 GB19189 GB3531 JIS G3103 JIS G3115 JIS G3115 JIS G3118 JIS G3119 DIN17155 ASTM ASME EN10028-2 EN10028-2 EN10028-2 NF A36-205 | Used for reactor, heat exchanger, separator, spherical tank, liquefied gas tank, nuclear reactor pressure vessel, boiler, liquefied petroleum tank, high pressure pipe of hydropower station, spiral case of water turbine. | |
high strength low alloy steel plate | |||
Q345(A,B,C,D,E) Q550(D,E),Q690(D,E) SM490(A,B,C),SM490Y(A,B) St44-3,St52-3,St50-2 StE315,StE355,StE500 A572M(Gr42,50,60,65) S275(JR,JO,J2),E295,E335 S355(JR,JO,J2,K2) 43(A,B,C,D,EE), E355(DD,E),E460(CC,DD,E) E550(DD,E),E690(DD,E) | GB/T1591 GB/T16270 JIS G3106 DIN 17100 DIN 17102 ASTM EN10025-3 EN10025-3 BS4306 ISO4950-3 ISO4950-3 | Used for drilling machine, electric wheel dump truck, mine car, excavators, loaders, bulldozers, cranes, hydraulic support and other structures. | |
Corrosion resistant steel plate | |||
Q550NH Q295NH Q355GNH S355J2W,S355J2WP,S355K2W A588(A,B,C,K) Cor-tenB,HIC钢,08Cu,16MnCu | ASTM | Used for all kinds of parts work under atmospheric environment and the corrosive gas or liquid. | |
bridge construction steel plate | |||
Q235q-Q690q(C,D,E) A709M(Gr36,50,50W,70W) | GB/T714 ASTM | Used for riveting, bolting and welding structures of highway and railway bridges (sea-crossing bridge included). | |
building structural steel plate | |||
Q345GJ(B,C,D,E),Q460GJ(C,D,E) SN400(A,B,C),SN490(B,C) 355EMZ,450(EM,EMZ) | GB/T19879 JIS G3136 BS7191 | Used for pillar and bearing beam of industrial and civil buildings. | |
Alloy structural steel plate | |||
15CrMo,20CrMo,30CrMo SAE4130 25CrMo4,34CrMo4,42CrMo4 | GB/T11251 ASTM EN10083-1 | Used for various of structures and parts, such as boiler superheater header of power plant, large diameter pipe structures. | |
Mould and wear resistant steel plate | |||
SM45-SM55,SM3Cr2Mo SM3Cr2Ni1Mo S45C-S55C 45-55 50Mn-65Mn | YB/T107 YB/T107 JIS G4051 GB/T711 | Used for all kinds of plastic mold, high mirror mold, formwork and wear-resistant parts of engineering machinery and equipment. | |
Automotive structural steel | |||
510L,550L,610L,700L | GB/T3273-2005 and technical specification | Used for automotive frame(cross beam、Longitudinal beam. | |
carbon structural steel plate | |||
08-70,20Mn-45Mn SM400 S10C-S55C St37-2,St37-3 40(A,B,C,D,EE) (S)A36,(S)A283 A830(1006-1060) S235(JR,J0,J2,K2) C22-C45 1010-1050 | GB/T711 JIS G3106 JIS G4051 DIN 17100 BS4360 (ASME)ASTM ASTM EN10025-2 EN10083 BS4360 | Used for various of steel riveting, bolting, welding structure. | |
Ship building and offshore oil platform steel plat | |||
A,B,D,E,A(H)32-F(H)32A(H)40-F(H)40 A(H)420-E(H)420 A(H)690-E(H)690 AQ43-EQ43,AQ70-EQ70 A131Gr(A,B,D,E,CS) API 2W(50,60),API 2Y(50,60) S355G10+N,S355G8+N | CCS,DNV,GL,LRBV,ABS,NK,KR RINA,GB712 RINA,GB712 ABS ASTM API EN10225 | Used for the hull, offshore oil platform, the platform tube joint and other structures. | |
High strength and toughness steel plate | |||
GS80,28Cr2Mo(GY4), 26SiMnMo(GY5) 30CrMnMoRE(603) 30CrNi3MoV(675) 921A | GJB1946A GJB1496A GJB31A GJB31A GJB1663 | Used for pressure shell, deep submergence rescue device, high-pressure structure, aerospace equipment, armored vehicles etc. | |
pipeline steel plate | |||
L245-L555 X42-X80 | GB/T21237 API | Used for crude oil and natural gas transmission pipeline manufacturing. | |
Clad steel plate | |||
TU1/20g 0Cr13Ni5Mo/Q235A 0Cr13Ni5Mo/16Mn | GB13238 GB8165 GB8165 | Used for linear accelerator cavity, cyclotron cylinder, chemical containers, high pressure wear-resistant pipe of hydropower station and other structures. | |
TU1/20g 0Cr13Ni5Mo/Q235A 0Cr13Ni5Mo/16Mn | GB13238 GB8165 GB8165 | Used for linear accelerator cavity, cyclotron cylinder, chemical containers, high pressure wear-resistant pipe of hydropower station and other structures. | |
nuclear power steel plate | |||
20MnHR,A48CPR,16MnD5 SA533,SA738,P265G,HP295GH,P355GH | RCCM2000+2002 NCA3800+ND、NC、NF2000 NCA3800+ND、NC、NF200 | Used for important equipment manufacturing of nuclear power. |