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发表于 2009-7-28 14:57:54
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来自： 中国上海
1.0580的标准
EN 10305-6 (08/2005), Steel tubes for precision applications, Welded cold drawn tubes for hydraulic and pneumatic power systems. (Structural and constructional steels)* ]! r1 y- U! d% z
Chemical compostion C 0.22, Si 0.55, Mn 1.60, P 0.025, S 0.015,/ L6 }* [& c# O# _, K3 i" Z
Cold drawn" u- z; h" k! I# F" p, A7 U
Yield stress 355MPa -20度6 O# ?4 Q* W% @: S7 N
Tensile STRESS 490-630MPa, -20度
1 b. M" {# D: H' C, X' W9 U6 kElongation 22% -20度" J2 l' W4 f% O
Impact value (Charpy-V) 27J 0度
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$ @+ t8 E: \+ T6 @6 S4 G* v+ vFor tubes with an outside diameter <=30mm and a wall thickness of <=3mm the minimum values ReH are lower by 10MPa. |
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