常用金属热膨胀系数部分汇总11

常用金属或合金的线胀系数 金属或合金温度T/℃线胀系数α /10E-6/℃

金属或合金温度T/℃ 线胀系数α /10E-6/℃ 铝及铝合金

碳钢20-10010.6-12.2

106020-10020-30020-20011.3-13.0 110020-10020-40020-30012.1-13.5

201120-10020-60020-40012.9-13.9

201420-1002320-60013.5-14.3 202420-10022.820-70014.7-15.0

221820-10022.3 铬钢20-10011.2

300320-10023.220-20011.8 505220-10023.8 铸铁20-1008.7-11.1

505620-10024.120-2008.5-11.6 508320-10023.420-30010.1-12.2

508620-10023.920-40011.5-12.7

515420-10023.920-60012.9-13.2 545620-10023.920-100017.6

606120-10023.4 1020-10011.53

606320-10023.420-20012.61 60014.6

磷脱氧铜20-30017.7 1520-10011.75

无氧铜20-30017.720-20012.41普通黄铜20-30020.320-610120-1002320-30013

707520-10023.220-40013铜及铜合金20-50014.18纯铜2016.520-403220-10019.420-30012.4

500520-10023.820-40013 505020-10023.820-60013.6

30013.45低铅黄铜20-30020.220-40013.6中铅黄铜20-30020.320-50013.85高铅黄铜20-30020.320-60013.9

超高铅黄铜20-30020.5 2020-10011.16

铝青铜20-30016.420-20012.12铍青铜20-30017.8 金属或合金温度T/℃线胀系数α /10E-6/℃

金属或合金温度T/℃ 线胀系数α /10E-6/℃ 40CrNiMoA 20-10011.7

18CrMn2MoBA 20-10012.37 20-30012.720-20012.73

35CrMoVA 20-10011.820-30013.17 20-20012.520-40013.6 20-30012.7

12Cr13

20-10011.2 20-4001320-20012.6 20-50013.420-40014.1 20-60013.720-60014.3 20-70014

20Cr13 20-10010.5

38CrMoAlA 20-1001120-20011 20-20013.120-30011.5 20-3001320-40012 20-40013.520-50012 20-50013.5

30Cr13

20-10010.2 20-60014.520-20011.1

30CrMnSiA 20-1001120-30011.6 20-20011.7220-40011.9 20-30012.9220-60012.3 20-40013.1320-70012.8 20-50013.92

12Cr18Ni9

20-10016.6 20-60014.2320-20017 20-70014.5920-30017.2 30CrMnSiNi2A

20-10011.3720-40017.5

20-20011.6720-

50017.8 20-30012.6820-60018.2 20-40012.920-70018.6 20-50013.5320-90019.3 20-60013.84

14CrMn17Ni2

20-10010.3 20-70013.9720-20010.3

40CrMnSiMoA 20-10012.520-30011.2 20-2001320-40011.8 20-30013.320-50012.4

节流件与管道常用材料的热膨胀系数/10E- 6/℃Cr1720-50011

金属或合金温度T/℃线胀系数α /10E-6/℃

金属或合金温度T/℃ 线胀系数α /10E-6/℃ 15、A3 -10010.6 12Cr1MoV 20-1009.8-10.63

20-10011.7520-20011.3-12.35

203.4520-40013-13.6 20-50013.8520-60013.8-14.6

20-20-20-20012.41202.3-13.35 40013.620-50012.84-14.15 60013.920-70014.2-14.56

A3F、B320-10011.5 10CrMo91020-10012.5 1020-10011.620-20013.6 20

20-10011.1620-60014.7 30012.78

Cr6SiMo

20-10011.5 20-40013.3820-20012 20-50013.9320-40012.5 20-60014.3820-60013 20-70014.81

20-20012.1220-80013.5

20-20-20012.6203.6

20-4001320-40014 20-60014.620-50014.4

X20CrMoWV121

20-10010.8 20-80012.9320-20011.2 20-90012.48201.6 20-100013.1620-40011.9

45

-10010.620-50012.1 20-10011.5920-60012.3 20-20012.32 1Cr18Ni9Ti

-10016.2 203.0920-10016.6 20-40013.7120-20017 20-50014.18207.2 70015.0820-50017.9 70018.6 20-100014.4

普通碳钢 20-10010.6-12.2

1Cr13、2Cr1320-10010.520-20011.3-13.0 20-2001120-30012.1-13.5 201.520-40012.9-13.9 20-4001220-60013.5-14.3 20-5001220-70014.7-15.0

Cr17 -10010.05 工业用铜

20-10016.6-17.1 20-1001020-20017.1-17.2 20-2001020-30017.6 20-30010.520-40018-18.1 20-40010.520-60018.6

金属或合金温度T/℃线胀系数α /10E-6/℃

金属或合金温度T/℃ 线胀系数α /10E-6/℃ 2020-30012.78 65

20-10011.8 20-40013.3820-20012.6 20-50013.9320-40013.3 20-60014.3820-50014 20-70014.8120-60014

2520-10011.18

20-60014.6720-40017.5

20-20-80012.520-60018.2

20-90013.5620-

20Cr

20-10011.3 20-20012.6620-20011.6 20-30013.0820-30012.5 20-40013.4720-40013.2 20-50013.9320-50013.7 20-60014.4120-60014.2 20-70014.88

40Cr 20-10011

3520-10011.720-20012 12Cr2Ni3A

20-10011.8 20-60014.4220-20013 20-70014.8820-40014.7 4520-10011.5920-60015.6 20-20012.32 12Cr2Ni4A

20-10011.8 20-30013.0920-20013 20-40013.7120-40014.7 20-50014.1820-50015 20-60014.6720-60015.6 20-70015.08

25CrNiWA 20-10011

5020-1001220-30013 20-20012.420-60014 20-40013.3 37CrNi3A

20-10011.6 20-50014.120-20013.2 20-60014.120-40013.4 20-60013.5

金属或合金温度T/℃线胀系数α /10E-6/℃

金属或合金温度T/℃ 线胀系数α /10E-6/℃ 17Cr18Ni9 20-10016

6Cr4Mo3Ni2WV 20-10011.1 20-50018.520-20011.2

13Cr11Ni2W2MoVA 20-1009.320-30011.9 20-20010.320-20-20011.920-30012.2

20-30012.720-40012.9 20-40013.420-50013.5 20-50014.02

40012.5

GCr9

20-30010.820-50013.1 20-40011.320-60013.1 20-

50011.720-70013.3 20-60012.2

20-10013

13Cr14Ni3W2VBA GCr15

20-10014 20-50011.120-20015.1 20-60011.220-40015.6 40Cr10Si2Mo20-1001020-60015.8

45Cr14Ni14W2Mo 20-30017 20-50018 20-70018 20-90019 12Cr18Mn9Ni5N 20-10015.5 20-20016.5 20-30017 20-40017.5 20-50018.8

Cr12MoV 20-10010.9 20-40011.4 20-60012.2

20-1001020-20013.9

20-20010.320-40015 20-30010.620-60015.2 20-40010.9