何锦添 发表于 2008-1-11 11:29:51

ST44材料化学成分---请教

请问谁知道管直径8X0.9.有什么化学成份,机械性能,抗拉强度,等等的资料,

伊凡 发表于 2008-1-11 12:49:58

化学成分

1. Chemical compositionCode number for materialChemical composition(%)CPSNSiMnAlUSt37.20.21Max0.065Max0.065Max0.009Max---RSt37.20.19Max0.060Max0.060Max0.010Max---St37.30.19Max0.050Max0.050Max---*)St44.20.24Max0.060Max0.060Max0.010Max---St44.30.23Max0.050Max0.050Max---*)M220.16 to 0.230.040Max0.040Max-0.28Max0.40 to 0.750.02MinQStE340N0.18Max0.035Max0.035Max-9.53Max1.56Max-*)Contains a sufficient quantity of aluminium or other nitrogen-fixing elements

[ 本帖最后由 ivantse 于 2008-1-11 12:53 编辑 ]

伊凡 发表于 2008-1-11 12:53:32

机械性能

2. Mechanical property
Code number for material
Mechanical properties for conditions on delivery
NBK (nominalized ) 1)
BKM (welded and sized)
Tensile strength Rm N/mm2
Yield point ReH N/mm2 min.
Elong-gation at rupture A5% min.
Tensile strength Rm N/mm2
Yield point ReH N/mm2 min.
Elong-gation at rupture A5% min.
USt37-2
360 to 470
235
23
390
250
7
RSt37-2
St37-3
St44-2
430 to 540
275
21
460
290
6
St44-3
M22
420Min
290
25
-
-
-
QStE340 N
460 to 580
340
27
-
-
-


[ 本帖最后由 ivantse 于 2008-1-11 12:57 编辑 ]
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