钢号 | 化学成分/(%) | 热处理 | 机械性能 | ||||||||||
C | Mn | Si | Cr | Ni | 其他 | 淬火温度 | 回火温度 | σb/ | σ0.2/ | δ/% | ψ/% | HB | |
℃ | ℃ | ||||||||||||
淬火介质 | 回火介质 | MPa | MPa | ||||||||||
调 | 38CrA | 0.34~0.42 | 0.5~0.8 | 0.17~0.37 | 0.8~1.1 | 860油 | 590油 | 950 | 800 | 12 | 50 | ||
40CrA | 0.35~0.46 | 0.5~0.8 | 0.17~0.37 | 0.8~1.1 | 850油 | 590油 | 1000 | 800 | 9 | 45 | |||
质 | 30CrMnSiA | 0.28~0.35 | 0.8~1.1 | 0.9~1.2 | 0.8~1.1 | 880油 | 550油 | 1100 | 850 | 10 | 45 | ||
37CrNi3A | 0.33~0.41 | 0.25~0.55 | 0.17~0.37 | 1.2~1.6 | 3.0~3.5 | 820油 | 550油 | 1100 | 1000 | 9 | 50 | ||
钢 | 38CrMoAlA | 0.35~0.42 | 0.3~0.6 | 0.17~0.37 | 1.35~1.65 | 0.15~0.25Mo | 940油 | 640 | 1000 | 850 | 15 | 50 | |
0.7~1.1Al | |||||||||||||
40CrNiMoA | 0.36~0.44 | 0.5~0.8 | 0.17~0.37 | 0.6~0.9 | 1.25~1.75 | 0.15~0.25Mo | 860油 | 580油 | 1090 | 970 | 15 | 58 | |
30Ni4CrMoA | 0.26~0.33 | 0.2~0.6 | 0.1~0.4 | 1.2~1.5 | 3.3~4.3 | 0.3~0.6Mo | |||||||
35Cr2Ni4MoA | 0.3~0.4 | 0.3~0.6 | 0.15~0.4 | 1.6~2.0 | 3.5~4.2 | 0.25~0.6Mo | |||||||
渗 | 15CrA | 0.15 | 0.7~1.0 | 860油 | 160空 | 600 | 400 | 15 | 50 | ||||
20MnV | 0.2 | 1.2~1.5 | 0.1V | 800油 | 200空 | 850 | 650 | 14 | 50 | ||||
碳 | 12CrNi3A | 0.1~0.16 | 0.3~0.6 | 0.6~0.9 | 3 | 860油 | 160 | 950 | 700 | 11 | 55 | ||
20MnMoB | 0.16~0.24 | 0.9~1.2 | 0.2~0.3Mo | 880油 | 200空 | 1100 | 900 | 10 | 50 | ||||
钢 | |||||||||||||
0.001~0.005B | |||||||||||||
16Cr2MnTiA | 0.13~0.18 | 1.0~1.3 | 1.05~1.80 | ≤0.25 | 0.06~0.12Ti | 830油 | 170空 | 1100 | 880 | 11.5 | 53 | ||
12Cr2Ni4A | 0.10~0.15 | 0.3~0.6 | 1.25~1.65 | 3.25~3.65 | 800油 | 160空 | 1000 | 880 | 12 | 55 | |||
20SiMnMoVA | 0.17~0.24 | 1.3~1.6 | 0.5~0.8 | ≤0.25 | 0.3~0.4Mo | 900油 | 200空 | 1150 | 950 | 10 | 50 | ||
0.15~0.25V | |||||||||||||
18CrNi4A | 0.15~0.20 | 0.3~0.6 | ≤0.35 | 0.8~1.1 | 3.7~4.3 | 0.05V | |||||||
18Cr2Ni4WA | 0.14~0.20 | 0.25~0.55 | 1.35~1.65 | 4.0~4.4 | 0.8~1.2W | 870油 | 160空 | 1150 | 850 | 11 | 45 | ||
超 | 40CrMnSiMoV | 0.37~0.42 | 0.8~1.2 | 1.2~1.6 | 1.2~1.5 | 0.07~0.12V | 0.45~0.6Mo | 920油 | 200 | 1943 | 13.7 | 45.4 | |
高 | |||||||||||||
40CrNi2Si2MoVA | 0.38~0.43 | 0.60~0.90 | 1.45~1.80 | 0.7~0.95 | 1.65~2.00 | 0.30~0.50Mo | 871油 | 300(空) | ≥1862 | ≥1517 | ≥8 | ≥30 | |
强 | |||||||||||||
(300M) | ≥0.05V | (二次) | |||||||||||
度 | 40CrNiMoA | 0.37~0.44 | 0.6~0.8 | 0.2~0.35 | 0.7~0.9 | 1.65~2.0 | 0.2~0.3Mo | 900油 | 230 | 1820 | 1560 | 8 | 30 |
钢 | (AISI4340) | 0.4~0.5Mo | |||||||||||
35Si2Mn2MoV | 0.32~0.38 | 1.60~1.90 | 1.45~1.75 | 0.1~0.2V | 920油 | 250 | 1840 | 1580 | 12 | 46 | |||
30Si2Mn2MoWV | 0.27~0.31 | 1.5~2.0 | 2.0~2.5 | 0.05~0.15V | 0.4~0.6W | 0.55~0.75Mo | 950油 | 250 | ≥1900 | ≥1500 | 10 | 25 | |
30CrMnSiNi2A | 0.26~0.38 | 1.00~1.30 | 0.9~1.2 | 0.9~1.2 | 1.4~1.8 | 900油 | 250 | 1700 | 1530 | 13.5 | 49 | ||
GC-19 | 0.32~0.37 | 0.8~1.2 | 0.8~1.2 | 1.3~1.7 | 2.0~2.5Mo | 1020油 | 550 | 1895 | 10.5 | 46.5 | |||
0.4~0.5V | |||||||||||||
弹 | 65Mn | 0.62~0.7 | 0.9~1.2 | 0.17~0.37 | 870油 | 460 | 1300 | 1200 | 5 | 25 | |||
60Si2Mn | 0.57~0.65 | 0.6~0.9 | 1.5~2.0 | 870油/水 | 460 | 1300 | 1200 | 5 | 25 | ||||
簧 | 70Si3MnA | 0.66~0.74 | 0.6~0.9 | 2.4~2.8 | 860油 | 420 | 1800 | 1600 | 5 | 20 | |||
50CrVA | 0.46~0.54 | 0.5~0.8 | 0.17~0.37 | 0.8~1.10 | 0.1~2.2V | 850油 | 520 | 1300 | 1100 | 10 | 45 | ||
钢 | 65Si2MnWA | 0.61~0.69 | 0.7~1.0 | 1.5~2.0 | 0.8~1.2W | 850油 | 420 | 1900 | 1700 | 5 | 20 | ||
55SiMnMoVNb | 0.52~0.6 | 1.0~1.3 | 0.4~0.7 | 0.08~0.15V | 0.3~0.4Mo | 880油 | 530 | ≥1400 | ≥1300 | ≥7 | ≥35 | ||
0.01~0.03Nb | |||||||||||||
60Si2MnBRE | 0.56~0.64 | 0.6~0.9 | 1.6~2.0 | 0.001~0.005B | 870油 | 460 | ≥1600 | ≥140 | ≥5 | ≥20 | |||
0.15~0.2RE |