GB/T 8162-2008 Seamless steel tubes for structural purposes (Text of Document is in English) - Beijing translation compay

Contents
Forwards
1. Scope
2. Normative References
3. order content
4. Dimension, shape and weight
4.1 Outside diameter and wall thickness
4.2 Allowable deviation of outside diameter and wall thickness
4.3 Length
4.4 Tortuosity factor
4.5 Noncircularity and wall unevenness
4.6 Terminal shape
4.7 Weight
5. Technical requirements
5.1 Grade of steel and chemical composition
5.2 Manufacturing method
5.3 Delivery state
5.4 Mechanical properties
5.5 Technical properties
5.6 Surface quality
5.7 Nondestructive test
6. Test method
7. Inspection rules
8. Packaging, marking and quality certification