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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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2 q* c* i9 E8 r* d/ V化学成分和材料对照表A 576 1020 对应GB 20 2 d E; s5 P+ K7 X5 H" V$ C
| | [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. | C; N' X! u0 K7 B" P
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9 [/ V" o2 c# F* @ J- n化学成分 (%)
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[table=98%] | | 元素 | 最小 | 最大 | 近似的 | | C | 0.1800 | 0.2300 | % |8 ] X$ s' l9 |- a( U9 }
| | Si (*) | ' T! `0 i& F1 O; c4 M' L
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| | Mn | 0.3000 | 0.6000 |
! `9 h/ m% q, Z8 k4 s! w | | P | : O2 ~' G8 \9 }5 y4 {& T4 g. j. y
| 0.0400 | ' f0 _( _: R+ T! c0 O& ^- _. j
| | S |
+ C$ ?% q* o# V. J: b( @" y | 0.0500 | 3 r+ \: h. L+ B+ ^7 h' b
| | B (*) |
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| | Cu (*) | 0.2000 |
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3 K8 I% Q/ I8 i/ r+ m0 h' i( M | | Pb (*) | # v' e! w _; B3 L
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, }! @- z6 n& T% Z- F/ x0 ? K4 O1 R | | Other (*) |
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/ }* D. b# O2 ? k" t| 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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! {6 u5 \/ h% A5 V7 Q* j) D2 {化学成分 (%)$ Q [4 _$ F. i& [/ R A7 y$ ?' `
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| 元素 | 最小 | 最大 | 近似的 | | C (*) | 0.1700 | 0.2400 | ) N: y: U( ]. L1 o
| | Si | 0.1700 | 0.3700 | " n2 V5 M- ]: m# d
| | Mn | 0.3500 | 0.6500 |
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' S0 w" |9 N3 f+ P' T4 T6 F& F+ ^- J | 0.0300 |
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2 V$ L! G! M$ p) s/ |7 f5 P3 M | 0.0300 | ' J. L( k1 H5 O* ]; B& H. g
| | Cr |
! A3 ?7 x! W% Y | 0.2500 | 3 H) i% x' \1 X) i" r
| | Mo |
3 p' a* |8 {: N' k: [+ y | 0.1500 | ; w7 O( \9 X0 P3 ]% P7 A
| | Ni |
8 J3 f& r( b$ q f* h% ]+ i | 0.2500 | 8 w p; f2 ^7 |% P) J
| | V |
) f+ y& |; r; b/ @, w: |) ]' {6 M | 0.0800 |
9 ?3 ]! R, @) [# a& w | | Cu | 9 H9 g& F) B6 U3 E
| 0.2000 | 7 T: {0 p) z+ V1 n8 p3 I3 h7 @5 V8 `
| | N (*) | $ L, q( p/ P/ a4 E/ s2 V2 l P
| 0.0080 | " d. X M6 v5 [4 Q( ?$ |1 z
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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. | $ O3 \# J7 }' s
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[ 本帖最后由 hourpp 于 2008-2-16 08:14 编辑 ] |
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