???? ?????? |
Mil-T-21014 |
|||||
Class1 |
Class 1 |
Class 2 |
Class 3 |
Class 3 |
Class 4 |
|
????? ???? |
90%W, 6%Ni4%Cu |
90%W, 7%Ni3%Fe |
92.5%W, 5.25%Ni 2.25%Fe |
95%W, 3.5%Ni 1.5% Cu |
95%W, 3.5%Ni 1.5%Fe |
97%W, 2.1%Ni 0.9%Fe |
????? (gm/cc;lbs/in3) |
17;0.614 |
17;0.614 |
17.5;0.632 |
18;0.65 |
18;0.65 |
18.5;0.668 |
????(RC) |
24 |
25 |
26 |
27 |
27 |
28 |
???? ????(PSI) |
110,000 |
120,000 |
114,000 |
110,000 |
120,000 |
123,000 |
???? ??????, .2% Offset (PSI) |
80,000 |
88,000 |
84,000 |
85,000 |
90,000 |
85,000 |
?????? (% in 1″) |
6 |
10 |
7 |
7 |
7 |
5 |
?????? ??????? ????? (PSI) |
45,000 |
52,000 |
46,000 |
45,000 |
44,000 |
45,000 |
???? ???????? |
Nil |
Slightly Magnetic |
Slightly Magnetic |
Nil |
Slightly Magnetic |
Slightly Magnetic |
ASTM-B-459-67 |
Grade1 Type Ⅱ && Ⅲ |
Grade1 Type Ⅱ && Ⅲ |
Grade2 Type Ⅱ && Ⅲ |
Grade3 Type Ⅱ && Ⅲ |
Grade3 Type Ⅱ && Ⅲ |
Grade4 Type Ⅱ && Ⅲ |
????? ?????? MIL-T-21014: ????? ???? ?????? ???? ?? ????? ???? (?????? ? ?? ??? ?????)? ???? ???? ???? ???? ??????????.
???? |
1 |
2 |
3 |
4 |
|
???? ?????? % |
90 |
92.5 |
95 |
97 |
|
????? (g/cc) |
16.85-17.25 |
17.15-17.85 |
17.75-18.35 |
18.25-18.85 |
|
???? (HRC) Max |
32 |
33 |
34 |
35 |
|
???? ???? |
ksi |
110 |
110 |
105 |
100 |
Mpa |
758 |
758 |
724 |
689 |
|
???? ?????? ?? 0.2? ????? |
ksi |
75 |
75 |
75 |
75 |
Mpa |
517 |
517 |
517 |
517 |
|
??????, % |
5 |
5 |
3 |
2 |
|
ASTM B777-99 ????????? ?????? ????? ?????? ?????? ???? ??? ??? ?? ????? ????
1.?????? ????? ?????? ??? ???? ??????? ???? ???? ???? ???? ???? machinable? ?? ????? ???? ??? ???? ?????? ????? ??? ???? ????? ????? ???? ??? ?? ????? ?????? ????? ?? ??? ???? ?????? ???. ?????? ????? ????? ?????? ??????? ??? ?????? ?? ?? ?????? ????? ?????? ????? ?????? ?? ???? ?? requirements.This ??? ?????? ???? ???? ??? ???? ????? ??? ??????? ?? ??? ? ?? ???? ????? ??? ?? ???? ??? ?? ???? ???? ???? ?????? ?? ????? ?????? ? ???? ???? ???? ??? ???? ??????? ???? ????.
2. ??? ????? ??? ??????? -Parts ??? ????? ??? ?? ??? ???? ????? ???? ??????? ?? ???? ???? ? ?? ?? ????? ?? ????? ?? ???? ???? ????? ?????? ????? ??????? ? ?? ????? ?????? ?? ????? ????? ???? ????? ? ?????? ??? ??????? ?????? ?????? ??? ????? ???. ?? ?? ?????? ??????? ?? ????? ????? ?????? ?? ????? ???? ??? ??? ?? ?? ????? ?????? ????? ??.
3.??? ????? ???? ????? ??????? ?? ?????? ????? ?????? ????? ?????? ??? ?????? ???? ? ?? ???? ???? ???? ??? ??? ????. ??? ??????? ???? ??? ????? ?? ???? ?? ???????? ????. ???? 4 ?? ?? ???? ??? ???????? ?? ????? ????. ???? ????? ??? ???????? ????? ??? ??? ???????? ?? ?????? ????? ?????? ?? ????? ???? ????? ?????? ???? ????? ???????? ?? 1.05 ????? ??? ???. ?????? ???? ????????? ??? ?? ???? ??? ????? ??? ???? ????? ????? ?????? ?? ???? ?????? ??????? ?? ??? ????? ?? ??? ??? ?????? ? ?? ?????? ??? ???? ????? ???? ??? ??????? ???. ?? ???? ????? ????? ??? ??? ????? ???? ?? ????? ???? ???? ??? ???. ?? ?? ?????? ?????? ?? ?????? ????? ?????? ?? ?????? ????????? ? ?????? ????? ???? ???? ???? ??? ????? ?? ????.