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Location:首页 > Technical parameter

轴承常用材料性能对照表

2017-12-18 16:59:55

性能
Technical data

单位

GCrl5

9Crl8

Si3N4

Zr02

密度
ρ Density

g/cm³

7.8

7.9

3.2

6

热膨胀
α Coefficient of expansion

10-6/℃

11

17

3.2

10.5

弹性模
IE modulus of elastcity

GPa

208

200

320

210

泊松比
μ Poisson ratio

 

0.3

0.3

0-26

0.3

硬度
HV Hardness

Mpa

800

700

1700

1300

抗弯强度
δBFlexural strength

Mpa

2400

2600

900

1000

抗压强度
Compressive strength

Nm/cm²

 

 

 

 

韧性
Kc Impact strength

W/mk

20

25

7

11

热导率入
λ Thermal conductivity

mm2/m

30-40

15

3.5

3.5

比电阻
Ω specific resistivity

J/KgK

1

0.75

1018

1015

比热
specific heat

.℃

450

450

800

400

使用温度
MAX permissible sewice temperature

 

120

150

1000

800

耐腐蚀
anti—corrossion

 

无
none

弱
weak

强strong

强
strong

应力循环次数(50%破坏机率)
NO.of stress circle(50%destroy)

 

10*106

10*106

50*106

50*106

流动接触疲劳失效形式
Destroy model

 

剥落
peel off

剥落
peel off

剥落peel off

剥落/断裂peel off/break

磁性
Anti—magnetism

 

有
none

有
none

无
good

无
good

尺寸稳定性
Dimension stability

 

差
not good

差
not good

好
good

好
good

绝缘性
Insulate properties

 

不绝缘
not good

不绝缘not good

好
good

好
good

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