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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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! Y! q% K- B( W% x化学成分和材料对照表A 576 1020 对应GB 20
* K' X e1 o* [1 o& p, }- @% J6 P( } | | [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 (%)' I' H. h3 P9 Y& Z* c. L% S1 G
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# Q% K4 h) Z) _$ E- U[table=98%] | | 元素 | 最小 | 最大 | 近似的 | | C | 0.1800 | 0.2300 | + n* ?1 o, ]9 n. m! m
| | Si (*) |
) B/ P- M$ }/ Q( G1 | |
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| | Mn | 0.3000 | 0.6000 | . }$ q k3 J. t$ U, ~6 T1 J
| | P | 3 G4 d, n9 `# `3 d1 S
| 0.0400 |
% z" E# \8 A& s' X* _ | | S |
* t& ^) p( u) G' Q3 e | 0.0500 |
! H$ c) i, U. U | | B (*) | 7 v9 n- f7 w5 L/ H( c1 T3 ]+ Z
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) T. J/ j0 T. o# T4 M% d# M& p4 l | | Cu (*) | 0.2000 | - \8 e F$ I3 I2 k
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1 b5 F9 N3 s0 e: Z4 f5 L/ t | | 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 (%)2 M6 X/ I5 J* F! |, k0 O$ w+ o5 A4 P
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| 元素 | 最小 | 最大 | 近似的 | | C (*) | 0.1700 | 0.2400 |
& O U; i5 s3 g/ I- J) p- J | | Si | 0.1700 | 0.3700 | . E, [ b& T" a o/ B
| | Mn | 0.3500 | 0.6500 | 8 A/ E! C! g0 \, W4 B+ u
| | P | / N- `- L- m2 B$ w! S2 R; g
| 0.0300 | 7 ?2 @( \2 S( b5 H# M" l4 ]
| | S | ' P: D' d9 L8 ^. H/ R) Q |8 h
| 0.0300 |
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7 i7 q# G4 u& N | 0.2500 | & J9 j* s/ k4 ]3 ]5 n* c6 N
| | Mo | " f9 p0 e3 j: D( G7 k& X) x5 c+ O, k
| 0.1500 | , e% l. T# Z* I* n4 E1 F$ I7 }
| | Ni | ' G7 {* E6 i" Y9 r; t4 p
| 0.2500 |
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6 F/ T3 Z( [) l. V g! s | 0.0800 | 0 T4 |9 W2 h; o! J! _9 Z4 y! V
| | Cu |
: }4 }. P* I z$ e | 0.2000 | ( k; k7 a$ N0 b) W$ N, h
| | N (*) | 3 n# l9 F, B0 p/ P
| 0.0080 | @! h4 J s$ l+ Q& P+ W, C, |0 F0 [
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A7 g0 B3 }' B, S) c! A5 j9 p| 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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3 \& y; t. M! \6 d5 U[ 本帖最后由 hourpp 于 2008-2-16 08:14 编辑 ] |
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