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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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- Z% O* d2 @1 D4 W/ B: n化学成分和材料对照表A 576 1020 对应GB 20
# b6 d4 x9 C3 p1 O | | [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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化学成分 (%)4 r, p n5 D1 k/ y' [. k! r
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[table=98%] | | 元素 | 最小 | 最大 | 近似的 | | C | 0.1800 | 0.2300 | + L- r# F# e+ F; N$ H# w
| | Si (*) |
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| | Mn | 0.3000 | 0.6000 | % `7 }' Q+ a; H1 _. b7 x* _
| | P |
# `3 ^* g x9 Y8 |! i* D; k | 0.0400 | - K7 h$ M3 f, a( \0 I; O/ n1 r3 t
| | S | # M' I6 Q- |8 M, y. c
| 0.0500 |
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) N- B7 c$ z2 t; X0 e | | Cu (*) | 0.2000 | - G: C- I Z& X: F% M0 {
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| | Pb (*) | 8 T" m0 M# }2 Y" s7 w& I" S/ E8 X
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| | Other (*) |
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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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| 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 (%) i$ t" D. g8 E; @ {' Z5 y7 ~
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| 元素 | 最小 | 最大 | 近似的 | | C (*) | 0.1700 | 0.2400 |
% ^1 Z2 x ]( `; D7 l' ]5 m& Y | | Si | 0.1700 | 0.3700 | 4 x3 g9 \: @" F
| | Mn | 0.3500 | 0.6500 |
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, |/ `1 d. |; F+ e, n | 0.0300 |
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| 0.0300 | , s- K$ L2 L8 N2 e4 q
| | Cr |
5 O5 x. U1 U: X) T \8 }4 B | 0.2500 |
( F( s; X0 K- \ | | Mo | ' l+ H: S6 k% i: n- P, ~, Z7 ~: B
| 0.1500 |
; F0 Z! P5 T- t Q# W+ w | | Ni |
) q9 r5 x k, n4 }) C: U | 0.2500 |
9 Z5 t1 `" g' g# w | | V |
; m8 ^0 K5 P3 f {$ x | 0.0800 |
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| 0.2000 |
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$ d1 q/ Y S B7 b | 0.0080 | 9 }) U5 Z5 o0 Y7 J
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| 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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