Best quality hot-sale tungsten penetrators
Specifications
1. 90WNiFe, 91WNiFe,92WNiFe,93WNiFe,95WNiFe,96WNiFe,97WNiFe
2. ISO9001:2008
Application field:
Tungsten is completely non-toxic and environmentally friendly so it is gaining increased use in weighting applications where lead is not appropriate. For example lead has been banned in many streams, so tungsten is often substituted for lead weight on fishing flies. The high density coupled with the non-toxic nature makes tungsten an ideal metal for this application.
For similar reasons tungsten is a superior product for weighting pinewood derby cars. Tungsten is 3.2 times the density of the zinc ("Lead Free") weighting material often used on pinewood derby cars, thus it enables tremendous flexibility in the design of the car. Coincidentally, tungsten has been used by NASCAR for the metal roll cage and as frame ballast to lower the center of gravity of the race car.
Tungsten Heavy Metal Grade Chart | |||||||
MIL-T-21014 Rev D | Class 1 | Class 2 | Class 3 | Class 4 | Class 1 | Class 2 | Class 3 |
SAE-AMS-T-21014 | Class 1 | Class 2 | Class 3 | Class 4 | Class 1 | Class 2 | Class 3 |
ASTM B777-07 | Class 1 | Class 2 | Class 3 | Class 4 | Class 1 | Class 2 | Class 3 |
AMS 7725 C | 7725 C |
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| 7725 C |
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Matrix (wt. %) | 90.0% W | 92.5% W | 95.0% W | 97.0% W | 90.0% W | 92.5% W | 95.0% W |
Binder (wt. %) | 10% Ni-Fe | 7.5% Ni-Fe | 5.0% Ni-Fe | 3.0% Ni-Fe | 10.0% Ni-Cu | 7.5% Ni-Fe | 5.0% Ni-Cu |
Nominal Density (g/cm3) | 16.85-17.25 | 17.15-17.85 | 17.75-18.35 | 18.25-18.85 | 16.85-17.25 | 17.15-17.85 | 17.75-18.35 |
Nominal Density (lb/in3) | 0.614 | 0.632 | 0.650 | 0.668 | 0.614 | 0.632 | 0.650 |
Typical Hardness (Rc) | 26 | 26 | 28 | 30 | 26 | 26 | 28 |
Ultimate Tensile Strength - Min. (psi) | 110,000 | 110,000 | 105,000 | 100,000 | 94,000 | 110,000 | 94,000 |
0.2% Offset Yield Strength - Min. (psi) | 75,000 | 75,000 | 75,000 | 75,000 | 75,000 | 75,000 | 75,000 |
Magnetic Characteristics | Slightly magnetic | Slightly magnetic | Slightly magnetic | Slightly magnetic | Nonmagnetic | Nonmagnetic | Nonmagnetic |
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