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发表于 2010-6-19 20:35:18
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来自： 中国辽宁大连
ASTM A105 / A105M - 10 Standard Specification for Carbon Steel Forgings for Piping Applications" O* r5 N5 {* G6 ~4 V' A5 V- M$ g% m
管道用碳钢锻件- `8 m2 S- z* h- ?" c7 L& ]
ASTM A106 / A106M - 08 Standard Specification for Seamless Carbon Steel Pipe for High-Temperature Service
' c. J, p, l. V( ?8 U2 t, `高温用无缝碳钢管
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API 5L Gr.B为美国石油学会制订的管线钢管标准（含无缝和焊接）和钢种8 G: M" S0 I. M# i" _
$ G( R6 ?2 c+ ^, n3 d! x( e4 tASTM A106和API 5L Gr B 更接近 |
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