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Spiral welded steel pipe

Commodity: Spiral welded steel pipe
Standard: 
SY/T5037-2000 GB9711.1 GB9711.2 API5L
Grade: Q235B/Q345B/L245/L290/L360/L415/L485/20# API 5L.B/X42/X46/X52/X56/X60/X65
Specification: Theo tiêu chuẩn
Price: Negotiate
Application: Used in oil and gas pipe system.

Liên hệ mua hàng

Mechanical material property

Grade

Tensile

σb (MPa)

Yield point

σs (MPa)

Elongation

δs (%)

Q235B

375

235

21

Q345B

470 ~ 630

345

21

C20

400

210

27

CT3

373 ~ 481

245

26

 

Chemical elements

Grade

C

Si

Mn

P

S

Q235B

0.12~0.20

≤ 0.30

0.30~0.70

≤0.045

≤0.045

Q345B

≤ 0.20

≤ 0.55

0.10~0.60

≤ 0.04

≤ 0.04

C20

0.17~0.23

0.10~0.40

0.30~0.60

≤0.045

≤0.045

CT3

~0.18

~0.22

~1.00

≤ 0.03

≤ 0.04