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5CrMnMo

2019-10-31
5CrMnMo
详细介绍:

模具钢材5CrMnMo是在中碳钢的基础上主要加入Cr、Mn、Mo三元素而研制成的,也可看作把5CrNiMo钢中的Ni元素由Mn元素取代而形成的。该钢是热作模具钢,除淬透性,耐热疲劳性稍差外,5CrMnMo钢具有与5CrNiMo钢类似的性能,淬透性稍差·此钢适于制作要求具有较高强度和高耐磨性的各种类型锻模·要求韧性较高时,可采用电渣重熔钢· 5CrMnMo钢中碳含量保持在0.40%~0.60%,可获得较高的强度与耐热疲劳强度、一定的硬度与耐磨性、良好的韧性钢与导热性。


化学成份


碳 C :0.50~0.60

硅 Si:0.25~0.60

锰 Mn:1.20~1.60

硫 S :≤0.030

磷 P :≤0.030

铬 Cr:0.60~0.90

镍 Ni:允许残余含量≤0.25

铜 Cu:允许残余含量≤0.30

钼 Mo:0.15~0.30


硬度 :退火,241~197HB,压痕直径3.9~4.3mm


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The mold steel 5CrMnMo is developed by adding mainly three elements of Cr, Mn and Mo on the basis of medium carbon steel, and can also be regarded as the substitution of Ni element in 5CrNiMo steel by Mn element. The steel is a hot work die steel. In addition to hardenability and poor thermal fatigue resistance, 5CrMnMo steel has similar properties to 5CrNiMo steel, and the hardenability is slightly poor. This steel is suitable for high strength and high resistance. Various types of forging die for grinding. When high toughness is required, the carbon content of electroslag remelted steel·5CrMnMo steel can be kept at 0.40%~0.60%, and high strength and thermal fatigue strength can be obtained. Hardness and wear resistance, good toughness steel and thermal conductivity.


chemical composition


Carbon C: 0.50~0.60

Silicon Si: 0.25 ~ 0.60

Manganese Mn: 1.20~1.60

Sulfur S :≤0.030

Phosphorus P :≤0.030

Chromium Cr: 0.60 to 0.90

Nickel Ni: Allowable residual content ≤ 0.25

Copper Cu: Allowable residual content ≤ 0.30

Molybdenum Mo: 0.15~0.30


Hardness: Annealed, 241 ~ 197HB, indentation diameter 3.9 ~ 4.3mm

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