钢组Steel: CrMo 序号No.: 40 牌号Grade: 42CrMo
试样毛坯尺寸Sample size/mm: 25
热处理|淬火|加热温度℃|第一次淬火:Thermal treatment/quenching/heating temperature oC/ first quenching: 850 热处理|淬火|加热温度℃|第二次淬火: Thermal treatment/quenching/heating temperature o沧州市光明小学C/ second quenching－
热处理|淬火|冷却剂: 油 Thermal treatment/quenching/coolant: oil
热处理|回火|加热温度℃: Thermal treatment/tempering/heating temperature oC/ 560 热处理|回火|冷却剂: 水、油Thermal treatment/ tempering /coolant: water, oil
力学特性|抗拉强度Mechanical property/tensile strength σb/MPa，≥: 1080 力学特性|屈服点Mechanical property/yield point σs/MPa，≥: 930
力学特性|断后伸长率Mechanical property/elongation at breaking δ5(%)，≥: 12
力学特性|断面收缩率Mechanical property/reduction of cross section areaψ(%)，≥: 45
力学特性|冲击吸收功Mechanical property/impact energy Aku2/J，≥: 63
钢材退火或高温回火供应状态布氏硬度 Steel Brinell hardness at delivery after annealing or high temperature tempering HBS100/3000，≤: 217 牌号Grade: 45
试样毛坯尺寸Sample size/mm: 25
推荐热处理/℃|正火: Recommended thermal treatment oC/ normalizing 850
推荐热处理/℃|淬火: Recommended thermal treatment oC/quenching 840
推荐热处理/℃|回火: Recommended thermal treatment oC/tempering 600
力学性能|Mechanical property σb/MPa≥: 600
力学性能|Mechanical property σs/MPa≥: 355
力学性能|Mechanical property δ5(%)≥: 16
力学性能|Mechanical property ψ(%)≥: 40
力学性能|Mechanical property AKU/J≥: 39
钢材交货状态硬度，≤|未热处理钢: 229 Steel hardness at delivery state HBS10/3000 ≤without thermal treatment
钢材交货状态硬度HBS10/3000，≤|退火钢: 197 Steel hardness at delivery state HBS10/3000, ≤annealed steel
42CrMo性能
Steel Group | Sequence No. | 百度文库 - 让每个人平等地提升自我Unified Numeral Code | Brand No. | Chemical Component, % |
真空浸漆C | Si | Mn | Cr北京8号学苑 | Mo | Ni | W | B | Al | Ti | V |
39 | A30352 | 35CrMo | 0.32-0.40 | 0.17-0.37 | 0.40-0.70 | 0.80-1.10 | 0.15-0.25 | | | | | | |
40 | A30422 | 42CrMo生物碳 | 0.38-0.45 | 0.17-0.37 | 0.50-0.80 | 0.90-1.20 | 0.15-0.25 | | | | | | |
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Steel Group | Sequence No. | Brand No. | Sample Raw Stock Size mm | Heat Treatment | Mechanical Property | BH HB10/3000 No More Than |
Quench | Tempering | Tensile Strength MPa | Yield Point MPa | Stretching Rate after Breaking % | Shrinkage % | Impact Absorption Power J |
Heat Temperature, ℃ | Coolant | Heat Temperature, ℃ | Coolant |
1st Quench | 2nd Quench | No Less Than |
CrMo | 40 | 42CrMo | 25 | 850 | ― | Oil | 560 | Water,oil | 1080 | 930 光谱表征 | 法国社会学12 | 45 | 63 | 217 |
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