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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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化学成分和材料对照表A 576 1020 对应GB 20 / J O# l; d3 n. ?& t3 U# z
| | [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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2 u- I8 Q9 x: @化学成分 (%)
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. }; B! N N# U) N- s( e[table=98%] | | 元素 | 最小 | 最大 | 近似的 | | C | 0.1800 | 0.2300 | J' ?% \+ Q* g6 ^/ x- ~% r
| | Si (*) |
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| | Mn | 0.3000 | 0.6000 | 6 @) m- F$ X& |& k
| | P | . n9 R! G. ?1 L$ s/ p* b+ q2 h
| 0.0400 |
) l( M+ Y5 K; k6 V- V) G7 G | | S |
! k8 j/ C3 M6 o | 0.0500 |
! t2 w9 q3 B3 o( v4 y | | B (*) |
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- m* F* Z6 k+ V: M# K | | Cu (*) | 0.2000 |
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| | Pb (*) |
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9 Y/ Z I- W4 s# i | | 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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4 T$ r! W8 ^ Q9 Q| 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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$ t1 k9 X8 J( }化学成分 (%)
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4 m) O) n" d1 z2 ]/ F2 D! ?) m+ K| 元素 | 最小 | 最大 | 近似的 | | C (*) | 0.1700 | 0.2400 |
, e4 D, n9 M% R& o5 C* ]% U* y | | Si | 0.1700 | 0.3700 | 7 n* Q0 K& P6 _" ~. ^0 V
| | Mn | 0.3500 | 0.6500 |
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| 0.0300 |
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7 D u+ O0 ?3 Z7 k. t w% J | 0.0300 |
2 j! ?2 W; w. a | | Cr | # R2 O: H6 K3 ]8 S0 c( ^
| 0.2500 |
[' I% I% Z/ g' ?* g0 @$ Z8 E | | Mo | % m* c& W' s" n8 O2 w
| 0.1500 |
- P$ t2 c; g2 ]& o( ]2 h | | Ni |
' r. F" H. R0 c- S% K | 0.2500 | 2 z# a+ s8 D8 ~& X; ?$ h
| | V |
; x9 X! q( W8 _: U+ s* V | 0.0800 | # ?8 `$ c# f$ _0 ^
| | Cu |
4 L# n2 T. h8 I c. E; b | 0.2000 | ) ?+ r6 `: j( [- C" ^' T, @+ n
| | N (*) | W$ Y3 Z0 j- X. e
| 0.0080 | 9 \0 `* W# Z- J b: M' B8 L; }# N
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, u9 I* [0 w* c( e7 \" i8 W| 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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) A6 D) X% K+ o1 o' b3 b[ 本帖最后由 hourpp 于 2008-2-16 08:14 编辑 ] |
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