1. A S T M A513 - 08a Standard Specification for Electric-Resistance-Welded Carbon and Alloy Steel Mechanical Tubing7 k2 [- e- @$ k; H) Q* K& a1 @
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2. A S T M A500 / A500M - 10a Standard Specification for Cold-Formed Welded and Seamless Carbon Steel Structural Tubing in Rounds and Shapes; |; ?8 ?7 g3 l @7 T
3 A0 x5 m( C0 E3. 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.. a" Z3 m( B3 M8 _4 ]1 U; a8 _ k
2. A S T M A 554 Standard Specification for Welded Stainless Steelk Mechanical Tubing 1 c# |4 w" F4 m! i' \1 D3. 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.- q5 G6 r% [1 M( _" X- S X
2. A S T M A 554 Standard Specification for Welded Stainless Steelk Mechanical Tubing 1 @' n5 q) r1 J9 q" ?3 m3. ...; k k: j5 a1 i4 a. J+ j8 y
dljdw 发表于 2011-12-15 16:44 http://www.3dportal.cn/discuz/images/common/back.gif
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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：; E, z p& R/ I
A S T M A554 - 11 Standard Specification for Welded Stainless Steel Mechanical Tubing 0 n3 l! l- Q3 @" W( U1 D无缝不锈钢方管：+ z- Z( e7 }7 W/ [4 ]: p% z6 v) B/ n
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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