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表2 电厂常用第Ⅲ～Ⅷ类钢材的化学成分、机械性能和参考数据 |
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表2 (续完) |
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分类号 SD340 |
Ⅲ Ⅲ Ⅲ Ⅲ
Ⅴ Ⅴ Ⅵ Ⅵ Ⅵ Ⅶ Ⅶ Ⅶ Ⅶ Ⅶ Ⅶ Ⅲ Ⅲ Ⅲ
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常温机械性能 |
HB |
≤250 156～241 ≤183 ≥159 ≤183 ≤187 ≤187 ≤187 ≤187 ≤187 ≤187 135
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ΑkJ/CM2 |
69 59 78 59 Ⅳ Ⅳ Ⅳ Ⅴ
55 98.1 98.1
≥3 29.4 29.4 | |
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Δs % |
21 21 22 21
18 16 17 20 18 20 25 22 40 40 40 40 40 40 ≥18 14 14 | |
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ΔbMPa |
412～559 441～638 440 471～638 450～600 540～738 608～804 690～840 ≥585 588 412 539 450 520 520 520 520 520 520 ≥47 420 420 | |
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ΔbMPa |
206 235 225 255 260～280 343 441 490 ≥415 392 177 343 205 205 206 206 206 206 206 ≥25 313 343 | |
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化学成分% |
P |
≤0.035 ≤0.035 ≤0.035 ≤0.035 ≤0.035 ≤0.035 ≤0.035 ≤0.030 ≤0.020 ≤0.035 ≤0.035 ≤0.035 ≤0.035 ≤0.035 ≤0.035 ≤0.035 ≤0.035 ≤0.035 ≤0.035 ≤0.040 ≤0.030 ≤0.030
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|
S |
≤0.035 ≤0.035 ≤0.035 ≤0.035 ≤0.035 ≤0.035 ≤0.035 ≤0.030 ≤0.010 ≤0.030 ≤0.030 ≤0.030 ≤0.030 ≤0.030 ≤0.030 ≤0.030 ≤0.030 ≤0.030 ≤0.030 ≤0.040 ≤0.030 ≤0.030 | |
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N |
— — — — — — — — 0.03～0.07— — — — — — — — — — — — — | |
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Nb |
— — — — — — — — 0.06～0.10— — — — — — — — — — — — — | |
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W |
— — — — — 0.300.55 — — — — — — — — — — — — — — — — | |
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牌号 |
标准号 |
GB5310 GB5310 GB/T977 GB5310 NIN17175 GB5310 GB5310 DIN17175 SA213 GB/T1221 GB/T1220 GB/T1220 GB/T1220 GB/T1220 GB/T1220 GB/T1220 GB/T1220 GB/T1220 GB/T2270 JB755 JB2640 JB2640 |
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钢号 |
12CrMo 15CrMo 12CrMoV 12Cr1MoV 10CrMo910 12Cr2MoWVTiB 12Cr3MoVSiTiB X20CrMo-V121 T91/P91 1Cr5Mo 0Cr13Al 1Cr13 1Cr17 0Cr18Ni9 1Cr18Ni9 0Cr18Ni9Ti 1Cr18Ni9Ti 1Cr23Ni13 1Cr23Ni18 2G20CrMo2G20 Cr-MoV 2G15 Cr-Mo1V | |
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序号 |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22
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