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发表于 2007-12-18 13:47:22
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来自: 中国安徽芜湖
见ASTM A656 A656M-2003 Standard Specification for Hot-Rolled Structural Steel...ASTM A656 A656M-2003% l& ~" t$ r; ]- E
Standard Specification for Hot-Rolled Structural Steel, High-Strength Low-Alloy Plate with Improved Formability
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5 e# _# D/ f- `! B @3 ~实际材料:A 656 Type 3 Grade 550 1 K. `6 ?0 e" S5 }5 i
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9 [1 f8 T4 D2 e, ~. g化学成分 (%)' u" P$ b4 b% y( M' H
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| 元素 | 最小 | 最大 | 近似的 | | C |
" ?- h! O$ A* @4 K | 0.1800 |
- S2 o1 T3 L a: o% @5 }* f | | Si | / `3 c: P7 k p* f, D$ L; W( h$ W" U
| 0.6000 | ) f0 L3 k. t9 `
| | Mn | $ S3 @: o4 y& _, B% K# M2 j. J
| 1.6500 |
* J! z: k# _8 ~; R | | P |
7 t& O7 N8 y/ Z& G' z6 I0 B | 0.0250 | 8 X7 `1 U4 D5 a! m, p1 u
| | S | ! F/ i) S$ W3 z/ T) v( w
| 0.0350 | 8 K0 F6 |1 W) B) ?
| | V |
8 i; U4 N7 s1 n | 0.0800 | 3 ?) w$ i5 ^# i5 [# O' s% E- i
| | Nb | 0.0080 | 0.1000 |
3 h. |2 R: g; O# E4 p | | N | & A+ t& M$ }& j
| 0.0200 |
| & n$ Z$ L! m) L; Q$ b" {/ C6 N
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6 y) C. o! T0 _| | 最小 | 最大 | 近似的 | | 厚板; 轧制; t <= 20 mm | | 屈服强度 Rp0,2 (MPa) | 550 | - | - | | 抗拉强度 Rm (MPa) | 620 | - | - | | 伸长率 A5 (%) | 15.0 | - | - |
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