JIS G 3445 : 2006

Carbon Steel Tubes for Machine Structural Purposes

Grade :

1. STKM 11A
   
2. STKM 12A
3. STKM 12B
   
4. STKM 12C
   
5. STKM 13A
6. STKM 13B
7. STKM 13C
8. STKM 14A
9. STKM 14B
10. STKM 14C
11. STKM 15A
12. STKM 15C
13. STKM 16A
14. STKM 16C
15. STKM 17A
16. STKM 17C
17. STKM 18A
18. STKM 18B
19. STKM 18C
20. STKM 19A
21. STKM 19C
22. STKM 20A

Type of Tests:

1. Chemical Composition
2. Tensile Test

Chemical Composition






















Tensile Requirements
























Elongation applied to No. 5 Test Piece (Transverse Direction) and No. 12 Test Piece (Longitudinal Direction) for Tubes under 8 mm in Wall Thickness

























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