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发表于 2008-2-15 16:18:32
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来自： 中国安徽芜湖
化学成分和材料对照表A 576 1020 对应GB 20
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' I4 U1 p; H y# F/ F化学成分和材料对照表A 576 1020 对应GB 20
7 Q( I( |; x0 Z8 e9 I. ~1 d" ?0 T | | [table] | | 材料牌号: | A 576 1020 | | 标准： | ASTM | | 国家与地区： | USA | | 钢组： | 结构钢 | | 次级类别： | ASTM A 576 Hot-wrought special quality carbon steel bars | | 注释： | Bars shall be hot-wrought and shall normally be delivered as manufactured. |
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! |! b; ?' n1 r: ^化学成分 (%)0 ]/ R3 ^- \* o6 ^3 P- I( M7 S
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! D. ?' O4 a. F+ [[table=98%] | | 元素 | 最小 | 最大 | 近似的 | | C | 0.1800 | 0.2300 | * q3 d# R$ ^: V& `+ r
| | Si (*) | 3 s; i# p. p4 N7 D, y7 C4 N' f/ V
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| | Mn | 0.3000 | 0.6000 |
S' H7 f9 p. {: j2 ]4 b" G | | P |
+ R& C8 p9 }+ X. r/ g; l7 [& _ | 0.0400 |
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| 0.0500 |
; r; h7 D s; Q: m6 m | | B (*) |
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| | Cu (*) | 0.2000 |
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1 r4 d) l4 R& ?: {! {$ K3 X | | Pb (*) | $ }) K$ }6 f5 w" I4 N& h
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| 元素 | 注释 | | Si | Where silicon is required the following ranges and limits are commonly specified: Si=max 0.10%; Si=0.10-0.20%; Si=0.15-0.35%; Si=0.20-0.40%; | | B | When boron treatment is specified for killed steels than B=0.0005-0.003% | | Cu | When specified | | Pb | If required, the lead content can be specified Pb=0.15-0.35%. | | Other | The elements bismuth, calcium, and tellurium may be added as agreed upon between purchaser and supplier. |
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: m, Z9 W5 f; }: \| 材料牌号: | 20 | | 标准： | GB | | 国家与地区： | China | | 钢组： | 结构钢 | | 次级类别： | GB 6479 Seamless steel tubes for high-pressure for chemical fertilizer equipments |
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化学成分 (%)' Y+ Z& m. n# j: w) o! d
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| 元素 | 最小 | 最大 | 近似的 | | C (*) | 0.1700 | 0.2400 | # V$ X4 B$ W4 Q4 t* m
| | Si | 0.1700 | 0.3700 | , q( q; F. f* [
| | Mn | 0.3500 | 0.6500 | ' e+ }$ |* _; z! `
| | P |
6 M3 v5 g8 M. [5 E9 S& W- X | 0.0300 | ! a% X3 S/ ^; L+ n$ E2 d
| | S | , g6 Y N+ ^6 |2 W
| 0.0300 |
6 E1 J' M, I4 K T/ [7 c3 z | | Cr |
! p& @ ]/ D K: H# u | 0.2500 |
$ E! m. Z/ [7 s e | | Mo | ! g! A {& H" a
| 0.1500 | . ~8 C) x5 q1 _9 l7 G9 c4 Y; A9 C
| | Ni | 8 v6 H3 x/ f* h+ C
| 0.2500 | + J7 {1 a* K( g; v7 N3 ?% ~ j) J
| | V |
0 f$ ]9 O5 k$ w5 t8 w | 0.0800 | 5 [0 b* N; @. P+ _/ l+ Q
| | Cu |
- b) Q1 L* ~6 N6 Y | 0.2000 |
: ]! P) c; g' k: e1 J0 `, B | | N (*) | & `0 t0 t( x' a- N. x! r
| 0.0080 |
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6 k, n: } Y* q# C+ _9 @! B| 元素 | 注释 | | C | When requested by the purchaser and specified in the contract, for steel used at low temperature, carbon content may be 0.17-0.22% | | N | For steels smelted in the basic oxygen furnace. |
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[ 本帖最后由 hourpp 于 2008-2-16 08:14 编辑 ] |
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