HD 17

HD 17BB

HD 17D

HD 17.5

HD
17.7

HD 18

HD 18D

HD 18.5

90%W
6% Ni
4% Cu

90% W
6% Ni
4%Cu/Fe

90% W
7% Ni
3% Fe

92.5% W
5.25%Ni
2.25%Fe

93W
Balance
Ni Fe Mo

95% W
3.5%Ni
1.5%Cu

95% W
3.5% Ni
1.5% Fe

97% W
2.1% Ni
.9% Fe

ASTM-B-777-07

Class 1

Class 1

Class 2

Class 3

Class 3

Class 4

密度 Gms/cc

17

17

17.5

17.7

18

18

18.5

硬度Rockwell C

24

25

26

30

27

27

28

极限抗拉强度(PSI)

110,000

125,000

114,000

130,000

115,000

125,000

128,000

屈服抗拉强度(PSI)

90,000

88,000

90,000

90,000

85,000

90,000

85,000

延伸率(% in 1")

8

14

12

10

7

12

10

热膨胀系数 10-6/°C (20-400°C)

5.4

4.8

4.6

4.5

4.4

4.6

4.5

导热率 (CGS Units)

.23

.18

.20

27

.33

.26

.30

导电率
(% IACS)

14

10

13

14

16

13

17

有无磁性

HD 17 =无
HD 17BB = 磁性小

磁性小

磁性小

磁性小

无

磁性小

磁性小