Tungsten Alloy Physical and Chemical Properties as per ASTM B777-15
(Also known as Mallory 1000®, Densalloy®, Fansteel 77® and Densimet®)
Tungsten Alloy Physical Properties
Tungsten Alloy mechanical properties - tensile strength, ductility, hardness - compare favorably to common engineering materials such as steel.
EFI Grade |
ASTM B777-15 Class |
Nominal Density GM/CC |
Minimum Yield Strength KSI (MPa) |
Minimum Ultimate Tensile Strength KSI (MPa) |
Minimum Elongation % |
Modulus of Elasticity KSI (MPa) |
Class Hardness Rockwell "C" Max |
|---|---|---|---|---|---|---|---|
EF 17 |
1 |
17.00 |
75 (648) |
110 (758) |
5 |
45 (310) |
32 |
EF 17N* |
1 |
17.00 |
75 (648) |
94 (648) |
2 |
45 (310) |
32 |
EF 175 |
2 |
17.50 |
75 (648) |
110 (758) |
5 |
48 (331) |
33 |
EF 175N* |
2 |
17.50 |
75 (648) |
94 (648) |
2 |
48 (331) |
33 |
EF 18 |
3 |
18.00 |
75 (648) |
105 (724) |
3 |
50 (345) |
34 |
EF 18N* |
3 |
18.00 |
75 (648) |
94 (648) |
2 |
50 (345) |
34 |
EF 185 |
4 |
18.50 |
75 (648) |
100 (689) |
2 |
52 (358) |
35 |
Note: Typical Hardness for all grades is RC 32 Max
Tungsten Alloy Chemical Properties
EFI Grade |
Nominal % Tungsten |
|---|---|
EF 17 |
90 |
EF 17N* |
90 |
EF 175 |
92.5 |
EF 175N* |
92.5 |
EF 18 |
95 |
EF 18N* |
95 |
EF 185 |
97 |
*N – Non-Magnetic Compositions