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Size and Grade: Metrical Diameter is as following, L≤15000 mm
| Country |
Standard |
Grade |
Yield point (σS, MPa) |
Metrical Diameter(mm) |
| China |
GB1499,GB13013 |
HRB335, HRB400,Q235 |
335, 400 |
Φ12~32 |
| America |
ASTM A615 |
Gr.300,Gr.400,Gr510 |
300,420,510 |
Φ12~32 |
| U.K. |
BS4449 |
250,460 |
250,460 |
Φ12~32 |
| Japan |
JIS Q3112 |
SD390,SD490 |
390,490 |
Φ12~32 |
| Canada |
CSA,G30.18-M92 |
400W |
400 |
Φ12~32 |
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