1.Standard ASTM A106 and ASTM A53
2.Material: carbon steel(GB)/SAE 1,020
3.Grade: B
4.Outer diameter: 48 to 219mm
5.Wall thickness: 4.5 to 45mm
6.Customized lengths are accepted
7.Application: 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%