Tiếng Việt
Tiếng Việt
Commodity: Welded steel pipe
Standard: GB3091-2001 GB9711.1 GB9711.2 API5L API 5CT
Grade steel: Q235B/Q345B/L245/L290/L360/L415/L485/20# API 5L.B/X42/X52/X60/X70
Specification: According to standard
Price: Negotiate
Application: Used in oil, gas and other liquid pipe system. It can be applicated in ocean construction and chemical factory
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 |