| 钢 种 | C | Si | Mn | Cr | Ni | Mo | 其他 |
| 20 | 0.17~0.24 | 0.17~0.37 | 0.35~0.65 | ||||
| 25 | 0.22~0.30 | 0.17~0.37 | 0.50~0.80 | ||||
| 45 | 0.42~0.50 | 0.17~0.37 | 0.50~0.80 | ||||
| 40Cr | 0.37~0.44 | 0.17~0.37 | 0.50~0.80 | 0.80~1.10 | |||
| 45Cr | 0.42~0.49 | 0.17~0.37 | 0.50~0.80 | 0.80~1.10 | |||
| 30CrMo | 0.26~0.33 | 0.17~0.37 | 0.40~0.70 | 0.80~1.10 | 0.15~0.25 | ||
| 35CrMo | 0.32~0.40 | 0.17~0.37 | 0.40~0.70 | 0.80~1.10 | 0.15~0.25 | ||
| 42CrMo | 0.38~0.45 | 0.17~0.37 | 0.50~0.80 | 0.90~1.20 | 0.15~0.25 | ||
| 38Crsi | 0.35~0.43 | 1.00~1.30 | 0.30~0.60 | 1.30~1.60 | |||
| 38CrMoAl | 0.35~0.42 | 0.20~0.45 | 0.30~0.60 | 1.35~1.65 | 0.15~0.25 | A1:0.7~1.10 | |
| 30CrNiM08 | 0.26~0.34 | ≤0.40 | 0.30~0.60 | 1.80~2.20 | 1.80~2.20 | 0.30~0.50 | |
| 34CrNiM06 | 0.30~0.38 | 0.15~0.40 | 0.40~0.70 | 1.40~1.70 | 1.40~1.70 | 0.15~0.30 | |
| 34CrNi3Mo | 0.30~0.40 | 0.17~0.37 | 0.50~0.80 | 0.70~1.10 | 2.75~3.25 | 0.25~0.40 | |
| 36CrNiMo4 | 0.32~0.40 | ≤0.40 | 0.50~0.80 | 0.90~1.20 | 0.90~1.20 | 0.15~0.30 | |
| 40CrNiMoA | 0.37~0.44 | 0.17~0.37 | 0.50~0.80 | 0.60~0.90 | 1.25~1.65 | 0.15~0.25 | |
| 20CrMnTi | 0.17~0.23 | 0.17~0.37 | 0.80~1.10 | 1.00~1.30 | Ti:0.04~0.10 | ||
| 20CrMnMo | 0.17~0.23 | 0.17~0.37 | 0.90~1.20 | 1.10~1.40 | 0.20~0.30 | ||
| 20MnCr5 | 0.17~0.22 | ≤0.40 | 1.10~1.40 | 1.00~1.30 | |||
| 17CrNiMo6 | 0.15~0.20 | ≤0.40 | 0.40~0.60 | 1.50~1.80 | 1.40~1.70 | 0.25~0.35 |
| 20Cr2NiMo | 0.17~0.23 | 0.17~0.37 | 0.60~0.95 | 0.40~0.70 | 0.35~0.75 | 0.2~50.30 | |
| 20CrNi2Mo | 0.17~0.23 | 0.17~0.35 | 0.40~0.70 | 0.40~0.65 | 1.60~2.00 | 0.15~0.30 | |
| 12CrNi3 | 0.10~0.17 | 0.17~0.37 | 0.30~0.60 | 0.60~0.90 | 2.75~3.15 | ||
| 20Cr2Ni4 | 0.17~0.23 | 0.17~0.37 | 0.30~0.60 | 1.25~1.65 | 3.25~3.65 | ||
| 18Cr2Ni4WA | 0.13~0.19 | 0.17~0.37 | 0.30~0.60 | 1.35~1.65 | 4.00~4.50 | W:0.80~1.20 | |
| 注:1)采用真空脱氧时,Si含量应不超过0.10%; 2)未列出的钢号按相应的技术标准执行。 | |||||||
| 碳钢牌号 | C | Mn | Si | S | P | 残余元素≤ | ||||
| Ni | Cr | Cu | Mo | V | ||||||
| ZG200—400 | 0.20 | 0.80 | 0.80 | 0.04 | 0.04 | 0.30 | 0.35 | 0.30 | 0.20 | 0.05 |
| ZG230—450 | 0.30 | 0.90 | ||||||||
| ZG270—500 | 0.40 | |||||||||
| ZG310—570 | 0.50 | 0.60 | ||||||||
| ZG340—0 | 0.60 | |||||||||
| ZG200—400H | 0.20 | 0.80 | 0.50 | |||||||
| ZG230—450H | 0.20 | 1.20 | ||||||||
| ZG275—485H | 0.23 | |||||||||
| 注:1)牌号末尾有字母“H”的,表示焊接用铸钢件; 2)各牌号对上限每减少0.01%的碳,可以增加0.04%的锰,ZG200-400(H)的锰至多为0.01%,ZG230-450H和ZG275-485H的锰增加量不大于20%,其余四个牌号的锰至多为1.20%。 3)残余元素总量不大于1.00%,如无另行规定,残余元素可以不进行分析。 | ||||||||||
低合金钢
| 牌 号 | 热处理 状 态 | ReH (Mpa) | Rm (Mpa) | A (%) | Z (%) | 冲击吸收功(J) | HB | ||
| Aku | Akv | AkDVM | |||||||
| ZG35Mn | 正火+回火 | 345 | 570 | 12 | 20 | 24 | — | — | — |
| 调 质 | 415 | 0 | 12 | 25 | 27 | — | 27 | 200~240 | |
| ZG40Mn | 正火+回火 | 295 | 0 | 12 | 30 | — | — | — | 163 |
| ZG45Mn2 | 正火+回火 | 392 | 637 | 15 | 30 | — | — | — | 179 |
| ZG50Mn2 | 正火+回火 | 445 | 785 | 18 | 37 | — | — | — | — |
| ZG65Mn | 正火+回火 | 不规定 | 不规定 | — | — | — | — | — | — |
| ZG20SiMn | — | 295 | 510 | 14 | 30 | 39 | — | — | — |
| ZG30SiMn | 正火+回火 | 340 | 590 | 14 | 25 | — | 24 | — | — |
| 调 质 | 390 | 0 | 14 | 30 | — | 39 | — | — | |
| ZG35SiMn | 正火+回火 | 340 | 570 | 12 | 20 | — | 24 | — | — |
| ZG35SiMnMo | 正火+回火 | 395 | 0 | 12 | 20 | 24 | — | — | — |
| 调 质 | 490 | 690 | 12 | 25 | 27 | — | 27 | — | |
| ZG30CrMnSi | 正火+回火 | 340 | 690 | 14 | 30 | — | — | — | 200 |
| ZG35CrMnSi | 正火+回火 | 345 | 690 | 14 | 30 | — | — | — | 217 |
| ZG20MnMo | 正火+回火 | 295 | 490 | 16 | — | 39 | — | — | 156 |
| ZG30Cr1MnMo | 正火+回火 | 392 | 686 | 15 | 30 | — | — | — | — |
| ZG40Cr1 | 正火+回火 | 345 | 630 | 18 | 26 | — | — | — | 212 |
| ZG34Cr2Ni2Mo | 调 质 | 700 | 950~1000 | 12 | — | — | 32 | — | 240~290 |
| ZG20CrMo | 正火+回火 | 245 | 460 | 18 | 30 | 30 | — | — | 135~180 |
| 调 质 | 245 | 460 | 18 | 30 | 24 | — | — | — | |
| ZG25CrMo4 | 正火+回火 | 300 | 550~700 | 16 | — | — | 27 | — | — |
| 调 质 | 550 | 700~850 | 10 | — | — | 32 | — | — | |
| ZG35Cr1Mo | 正火+回火 | 392 | 588 | 12 | 20 | 23 | — | — | — |
| 调 质 | 510 | 686 | 12 | 25 | 31 | — | 27 | 200 | |
| ZG42Cr1Mo | 正火+回火 | 343 | 569 | 12 | 20 | — | 30 | — | — |
| 调 质 | 490 | 690~830 | 11 | — | — | — | 21 | 200~250 | |
| ZG50Cr1Mo | 调 质 | 520 | 740~880 | 11 | — | — | — | 34 | 200~260 |
| ZG28NiCrMo | — | 420 | 630 | 20 | 40 | — | — | — | — |
| ZG30NiCrMo | — | 590 | 730 | 17 | 35 | — | — | — | — |
| ZG35NiCrMo | — | 660 | 830 | 14 | 30 | — | — | — | — |
| ZG25NiCrMo4 | 正火+回火 | 400 | 700~850 | 15 | — | — | 20 | — | — |
| 调 质 | 650 | 800~950 | 10 | — | — | 27 | — | — | |
| 注:1.无另行规定时,冲击吸收功的缺口型式由供方任选一种。 2.硬度HB原则上不作为验收依据,供设计参考。 | |||||||||