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this is to indicate the equivalent metallic material in jis standard and astm standard. however, it is to be noted that this is reference only for users' convenience and there might be differences in detailed composition etc.
1. pipe
material | astm standard | jis standard | remarks | ||
carbon steel | a135 | gr.a | g 3454 | stpg 370 | |
a53 | gr.e-a | ||||
a135 | gr.b | stpg 410 | |||
a53 | gr.e-b | ||||
a53 | type f | g 3452 | sgp | ||
a106 | gr.a | g 3456 | stpt 370 | ||
gr.b | stpt 410 | ||||
a333 | gr.1 | g 3460 | stpl 380 | ||
gr.3 | stpl 450 | ||||
stainless steel | a312 | gr.tp304 | g 3459 | sus 304tp | |
gr.tp304l | sus 304ltp | ||||
gr.tp316 | sus 316tp | ||||
gr.tp316l | sus 316ltp | ||||
2. forging material
material | astm standard | jis standard | remarks | ||
a105 | - | g 3201 | sf 490a | ||
- | g 3202 | sfvc 2a | |||
a181 | gr.i | g 4051 | s25c (forging) | ||
gr.ii | s30c (forging) | ||||
a350 | gr.lf2 | g 3205 | sfl2 | ||
a182 | gr.f1 | g 3203 | sfva f1 | ||
gr.f2 |
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