发布时间:2011-04-18 09:28:43 浏览量:1817 【字体:
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30CrMnSiNi2A30CrMnSiNi2A合金结构钢的物理性能:
1)30CrMnSiNi2A钢的临界温度
临界点 温度(近似值)/℃
Ac1 705/705
Ac3 800/815
Ms 321/314
备注 1/2
注:1 .用钢成分(%):0.27C,1.05Si,1.06Mn,1.05Cr,1.66Ni,0.013P,0.005S;
2 .用钢成分(%):0.30C,1.10Si,1.07Mn,1.06Cr,1.50Ni,0.014P,0.005S.
2)30CrMnSiNi2A钢的弹性模量
温度/℃ 弹性模量E/MPa
20 211000
100 208000
200 204000
250 202000
注:用钢成分(%):0.31C,1.08Si,1.16Mn,1.07Cr,1.67Ni,0.10Cu,0.011P,0.005S;
热处理:890℃50min油淬,250℃3h回火空冷。
3)30CrMnSiNi2A钢的线(膨)胀系数
温度/℃ 线(膨)胀系数/C-1
20 10.55
17~100 11.37
17~200 11.67
17~300 12.68
17~400 12.9
17~500 13.55
17~600 13.8
17~700 13.9
17~800 11.15
17~900 12.1
4)30CrMnSiNi2A钢的热导率
温度/℃ 热导率λ/W·(m·K)-1
20 25.7
100 28.0
200 29.3
300 29.9
400 29.3
500 28.2
600 27.0
700 25.7
800 24.0
900 22.3
5)30CrMnSiNi2A钢的质量定压热容
温度/℃ 质量定压热容cp/J•(kg·K)-1
20 472.3
100 526.6
200 518.0
300 639.5
400 698.0
500 752.4
600 831.8