1. A S T M A513 - 08a Standard Specification for Electric-Resistance-Welded Carbon and Alloy Steel Mechanical Tubing . Z- [6 j& I3 j, m$ x& W4 [3 E: x+ P0 L, P) k
2. A S T M A500 / A500M - 10a Standard Specification for Cold-Formed Welded and Seamless Carbon Steel Structural Tubing in Rounds and Shapes / ?! J( Z6 m9 {0 ` 2 R6 t3 z! h, } W5 _3. A S T M A501 - 07 Standard Specification for Hot-Formed Welded and Seamless Carbon Steel Structural Tubing
1. A S T M A 270 Standard Specification for Seamless and Welded Austenitic Stainless Steel Sanitary Tubing. : m2 ]; r& J, P' j6 o8 S2. A S T M A 554 Standard Specification for Welded Stainless Steelk Mechanical Tubing7 [4 t7 P |2 v' f' @
3. A S T M A269－2007 普通设备用无缝和焊接奥氏体不锈钢管标准规范
1. A S T M A 270 Standard Specification for Seamless and Welded Austenitic Stainless Steel Sanitary Tubing. ( X& n+ ^2 C( |# P8 N/ D5 K2. A S T M A 554 Standard Specification for Welded Stainless Steelk Mechanical Tubing 1 G {% I+ t6 f2 m' d3. ... $ T! o5 V: e W2 V, `0 Odljdw 发表于 2011-12-15 16:44 http://www.3dportal.cn/discuz/images/common/back.gif
5 R$ u. r% ?$ q: Y/ U9 R* p! r2 A' w 上述标准好像还不能说明为美标不锈钢无缝方管的标准号。还有更好的说明或标准吗？谢谢！
有缝不锈钢方管：/ ^4 f2 Q$ n. y/ Y b
A S T M A554 - 11 Standard Specification for Welded Stainless Steel Mechanical Tubing ' @* x! D. U4 x9 y( t4 ^. p无缝不锈钢方管：" l& P# J) H; b' [6 H
A S T M A511 / A511M - 11 Standard Specification for Seamless Stainless Steel Mechanical Tubing
发表于 2011-11-24 08:36:59
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