Q235B Q345B 탄소 대형 직경 원활한 강관

Out Diameter

13.7mm-914mm

Wall Thickness

2mm-120mm

Length

2m-12m

Producing Standard

American ASME B36.10M, ASTM API 5L, API 5CT, Japanese JIS, German DIN, Chinese GB, BS standard

Steel Grade

ASTM A53, A106, A210, A252, A178, A333, A335, SAE1018, SAE1020, SAE1045 etc;

API 5L PSL1: A, B, x42, x46, x52, x56, x60, x65, x70
API 5L PSL2: B, x42, x46, x52, x56, x60, x65, x70, x80
JIS SS400, STPG42, G3454, G3456 etc;
DIN St35, St35.8, St37, St42, St45, St52, DIN1626, DIN17175 etc;
GB 10#, 20#, 45#, Q235, Q345, Q195, Q215, 16Mn, 27SiMn, 20Cr, 40Cr, 12CrMo, 15CrMo, 30CrMo, 35CrMo, 42CrMo etc;

EN S235JR, S275JR, S355JR, S355J0, S355J2

Special specifications

Available according to customer's requirements and quantity.

End Shape

Beveled end, plain end, varnished, or adding plastic caps to protect the two ends as per customer's requirements

Surface treatment

Painted, Oiled, galvanized, phosphate etc

Usage

1.Widely used in the mechanical treatment field, petrochemical industry, transport and construction field
2.Ordinary structural purposes and mechanic structural purposes, for example in construction field, fulcrum bearing etc;
3.The transportation of fluids in the projects and big equipments, for example transport of water, oil, gas etc
4.Can be used in low and medium pressure boiler for the transportation of fluids, for example steam tube, big smoke tube, small smoke tube, generating tube etc

Third party inspection

Welcome you to send a third party inspecting company (BV, SGS etc) to check the quality of our final products.

Standard

Grade

C max

Mn max

Si max

P max

S max

Yield strength min

Tensile strength

Elongation%

ASTM

A36

0.25

0.80-1.20

0.40

0.045

0.050

250

400-520

26

ASTM

A283

0.14-0.24

0.90

0.40

0.035

0.040

210

310-510

22-27

GB/T 700

Q235B

0.12-0.20

0.30-0.65

0.30

0.045

0.045

235

375-460

21-26

GB/T 1591

Q345B

0.18-0.22

0.60-1.50

0.55-0.95

0.035

0.035

345

470-630

20

JIS G3101

SS400

0.22

1.40

0.50

0.035

0.035

245

400-500

26

EN 10025

S235JR

0.17-0.20

1.40

0.35

0.035

0.035

235

360-510

24

EN 10025

S275JR

0.17-0.23

1.50

0.40

0.040

0.040

275

430-580

21

EN 10025

S355JR

0.22

1.60

0.55

0.025

0.025

355

470-630

20

DIN 17100

ST37-2

0.17-0.20

1.20

0.35

0.045

0.045

235

340-480

25

DIN 17100

ST52

0.24

1.60

0.55

0.045

0.045

345

450-630

21