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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
& {6 K) h- G2 _! 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. | , n! [4 G1 H% }/ r* L: V
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$ l: r5 r# W( T4 ?" u8 Y, [- ^; f化学成分 (%)1 [4 V1 p; b, S; ~$ E" \% M: D
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[table=98%] | | 元素 | 最小 | 最大 | 近似的 | | C | 0.1800 | 0.2300 | 7 U* A1 _' b9 J+ [6 ?
| | Si (*) | ! m* J3 y/ V! S0 d# r( ~/ Q8 S1 W
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( M* f9 }5 t/ l+ S5 u" k | | Mn | 0.3000 | 0.6000 |
: w1 i, [' E( a/ N8 `$ L1 q7 T5 j. e) ] | | P | 5 V' ~9 N) r2 H6 O, c) v* C
| 0.0400 | & @4 e$ v6 Y7 @3 p4 |" F, d
| | S | 8 {* b% |$ J$ p( Y/ V/ g0 s* T, c5 t
| 0.0500 |
0 ~" P1 _0 f0 U | | B (*) |
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| | Cu (*) | 0.2000 | / q* K& o) i s4 W, H" G: G& z
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9 @+ y4 R1 ]& N3 b1 k2 O( L | | Pb (*) | 4 W, m% M- v$ d: |3 \
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/ |7 ^. s2 M% \/ _5 O! r& H4 Q | | 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. | / K/ @0 {- B) a9 ^* Q( Z% }$ F- F0 K
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$ |' F) S( a% C& || 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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1 n, C: l0 ^* W3 E9 C化学成分 (%)
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| 元素 | 最小 | 最大 | 近似的 | | C (*) | 0.1700 | 0.2400 |
?' i- B; u* f* n | | Si | 0.1700 | 0.3700 |
. P: v2 B: `# C$ ~) o8 J! i( T | | Mn | 0.3500 | 0.6500 |
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| 0.0300 |
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+ E. o4 } n Y7 h& n | 0.0300 | + ^8 h: D0 f/ y; V! E- _; k
| | Cr | 6 G6 h4 Z B2 X% Z5 V2 X, o; t
| 0.2500 |
. ^4 ?2 `2 B5 f | | Mo | 0 d1 L' h L7 M* ^
| 0.1500 |
* w+ ?* e0 a( \+ D/ I" o | | Ni | " \) o" l; k% S+ B- l5 Y8 J
| 0.2500 |
) [( m. y w: i1 {3 X | | | V |
8 @9 }- c5 S- o3 B0 r | 0.0800 |
5 ~& `1 D2 Y( i- t, L9 I | | Cu |
: V7 G: U; a2 F+ o5 N3 @ | 0.2000 |
9 F. \$ s8 K5 a$ n2 p" x, w | | N (*) | 0 r$ Y5 F4 q+ @( y
| 0.0080 |
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" A8 a9 x4 F4 I| 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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8 e; h% }4 P& Q$ T: U[ 本帖最后由 hourpp 于 2008-2-16 08:14 编辑 ] |
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