General structure steel pipe
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General structure steel pipe
General structure steel pipe, referred to as structural pipe.
This standard replaces GB8162-1999 "Structural seamless steel pipe". Compared with GB8162-1999, the main changes of this standard are as follows:
- increased the order content;
——Revision 2008-08-19 released 2009-04-01 implementation
Structural pipe weight calculation formula: [(outer diameter - wall thickness) * wall thickness] * 0.02466 = kg / m (weight per meter)
Changed the allowable deviation of the size;
- increased full length bending requirements;
- increased the requirement for end cut;
- canceled the markup example;
- increased the steel grade;
- canceled the requirements for the flare test;
- canceled the requirements for the flare test;
- Added non-destructive testing negotiation terms.
The company produces Q345B structural steel pipe, Q345B structural seamless steel pipe and Q345B structural seamless pipe.
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