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31NICR14热圆圆钢31NICR14滚动圆圈

2023-05-05 08:07 作者:上海钢泽合金集团  | 我要投稿

材料品牌编号:31NICR14标准:DIN Steel套件:结构钢化学成分(%)C0.2700-0.3500MN0.8000p≤0.0350s≤0.1500-0.5500 -0.5500 -0.9500 -3.2500-3.7500-3.7500-3.7500-3.7500-3.7500

●化学成份

碳 C :0.27~0.33
硅 Si:0.17~0.37
锰 Mn:0.30~0.60
硫 S :允许残余含量≤0.035
磷 P :允许残余含量≤0.035
铬 Cr:0.60~0.90
镍 Ni:2.75~3.15
铜 Cu:允许残余含量≤0.030截面尺寸:
直径D/mm:100-300
壁厚:s/mm :50-150

 

●力学性能

抗拉强度 σb (MPa):≥980(100)
屈服强度 σs (MPa):≥785(80)
伸长率 δ5 (%):≥9
断面收缩率 ψ (%):≥45
冲击功 Akv (J):≥63
冲击韧性值 αkv (J/cm2):≥78(8)
硬度 :≥241HB
试样尺寸:试样毛坯尺寸为25mm
热处理工艺

 

●热处理规范及金相组织:
热处理规范:淬火820℃,油冷;回火500℃,水冷、油冷

●化学成份

碳 C :0.27~0.33
硅 Si:0.17~0.37
锰 Mn:0.30~0.60
硫 S :允许残余含量≤0.035
磷 P :允许残余含量≤0.035
铬 Cr:0.60~0.90
镍 Ni:2.75~3.15
铜 Cu:允许残余含量≤0.030截面尺寸:
直径D/mm:100-300
壁厚:s/mm :50-150

 

●力学性能

抗拉强度 σb (MPa):≥980(100)
屈服强度 σs (MPa):≥785(80)
伸长率 δ5 (%):≥9
断面收缩率 ψ (%):≥45
冲击功 Akv (J):≥63
冲击韧性值 αkv (J/cm2):≥78(8)
硬度 :≥241HB
试样尺寸:试样毛坯尺寸为25mm
热处理工艺

 

●热处理规范及金相组织:
热处理规范:淬火820℃,油冷;回火500℃,水冷、油冷。

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