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8.72mm tungsten heavy alloy ball tungsten ball weights bearing ball
Tungsten carbide balls and valve seats have the compositions of tungsten carbide(WC) and Co or Ni or Mo additives. With high compression strength, excellent wear resistance and well shock and impact resistance, tungsten carbide balls and valve seats are widely supplied as ball-rolling element in bearing industry, pump valve spool for fluid seal, check valve for petroleum digger, industrial sprayers to regulate the flow of fertilizers or pesticides to crops.
Tungsten carbide balls can be also applied in a drastically different application, it can be employed as pen balls due to their inert chemical properties. Besides, in miniature flow control devices, such as medical instrumentation and ink-jet printing, tungsten carbide balls are also frequently used.
| Diameter:8.72mm |
| Density:17.3-17.8g/cm3 |
Advantage
1. Good mechanical strength
2. Low thermal expansion
3. Good corrosion resistance
4. High radiation absorption (superior to lead)
5. Simplified life cycle
6. High density, high strength,high impact resistance and crack resistance, etc.
1.Some counterweights, like yacht counterweights, vehicle counterweights, airplane counterweights, helicopter counterweights, boat counterweights, counterweights for hunting guns, hunting equipment, the missile weapons and counterweights for oil logging, etc.
2.Tungsten heavy alloys have proven their value in ordnance applications since World War Ⅱ. The great properties of tungsten ordnance components make them applicable in hyper-velocity, armor-penetrating application, fragmentation devices and kinetic energy penetrators.
With adjusting manufacturing process and additives, we can fulfill customers’ requirements about tensile strength, hardness and other factors of tungsten ordnance. We can offer tungsten heavy alloy ordnance components in spheres, cubes, rods and projectile shape
| AMS-T-21014 | Class 1 | Class 1 | Class 2 | Class 2 |
| Composition | 90W7Ni3Fe | 91W6Ni3Fe | 92W5Ni3Fe | 93W4Ni3Fe |
| Density (g/cm3) | 17.1±0.15 | 17.25±0.15 | 17.50±0.15 | 17.60±0.15 |
| Heat Treatment | Sintering | Sintering | Sintering | Sintering |
| Tensile Strength (MPa) | 900-1000 | 900-1000 | 900-1100 | 900-1100 |
| Elongation (%) | 18-29 | 17-27 | 16-26 | 16-24 |
| Hardness(HRC) | 24-28 | 25-29 | 25-29 | 26-30 |
| AMS-T-21014 | Class 3 | Class 3 | Class 4 | |
| Composition | 95W3Ni2Fe | 96W3Ni1Fe | 97W2Ni1Fe | |
| Density (g/cm3) | 18.10±0.15 | 18.30±0.15 | 18.50±0.15 | |
| Heat Treatment | Sintering | Sintering | Sintering | |
| Tensile Strength (MPa) | 920-1100 | 920-1100 | 920-1100 | |
| Elongation (%) | 42665 | 42602 | 42534 | |
| Hardness(HRC) | 27-32 | 28-34 | 28-36 |
| ASTM B 777-99 | |||||
| Class | 1 | 2 | 3 | 4 | |
| Tungsten Nominal % | 90 | 92.5 | 95 | 97 | |
| Density (g/cm3) | 16.85-17.25 | 17.15-17.85 | 17.75-18.35 | 18.25-18.85 | |
| Hardness (HRC) Max | 32 | 33 | 34 | 35 | |
| Ultimate Tensile Strength | ksi | 110 | 110 | 105 | 100 |
| Mpa | 758 | 758 | 724 | 689 | |
| Yield Strength at 0.2% off-set | ksi | 75 | 75 | 75 | 75 |
| Mpa | 517 | 517 | 517 | 517 | |
| Elongation, % | 5 | 5 | 3 | 2 |
|
Zhuzhou Newmetal Materials Co., Ltd. is a refractory metal manufacturer specializing in the raw material and deep-processing product of tungsten, molybdenum, tantalum, niobium, rhenium and tungsten carbide.
• We have conquered the technological difficulties in welding between the tungsten carbide wear-resistant material and stainless steel-based and iron-based. The geometrical tolerance of weldment can be controlled in level A.
• Relying on powder metallurgy institute and engineering materials institute of Central South University, We have established a production-learning-research base to provide powerful technologic support for products R&D. And we have the whole production equipment from mixing to finish machining, including the world’s most advanced cold isostatic pressing machine which can manufacture the widest and longest plate.
•Our 21 technicians, 10 after-sales personnel and 120 manufacturing workers are all heartedly at your service.
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