1.Standard ASTM A106,ASTM A53
2.Grade B
3.Material: carbon steel(GB)/SAE 1,020
4.Outer diameter: 48 to 219mm
5.Wall thickness: 4.5 to 45mm
6.Length randomly or according to requirements
7.Applications: liquid service, mechanical processing, oil industry, transportation and construction
8.Certification: ISO, API
Chemical composition
C: 0.17 to 0.24%
Si: 0.17 to 0.37%
Mn: 0.35 to 0.65%
S: maximum 0.035%
P: maximum 0.035%
Cr: maximum 0.25%
Ni: maximum 0.30%
Cu: maximum 0.25%
Mechanical properties:
Ultimate tensile strength minimum: 390mPa
Yield strengths minimum: 225mPa
Elongation minimum: 20%