Achemetal Tungsten & Molybdenum Co., Ltd.
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Product description
Tungsten heavy alloys material formed by adding a small amount of Ni, Fe, Cu, Co, Mo, Cr and other elements into tungsten (generally with the content of 80%~98%) serving as the basis. High-specific-gravity tungsten alloy has the density of 15.20~18.70g/cm3, and is also called high-specific-gravity alloy or high-density alloy material by people. High-specific-gravity tungsten alloy is mainly divided into two series, W-Ni-Fe (weakly magnetic) and W-Ni-Cu (non-magnetic) even W-Ni-Fe-Cu. By comparison, W-Ni-Fe alloy has a higher mechanical property and plays a great role in the national defence industry and various fields of national economy, is a very important military new material in the national defence industry, and is gradually generalized to all the civil industries.
Tungsten radiation shielding capability is more than 1.7 lead when radiation is stronger,both radiation shielding capability away from more obvious;
Tungsten materials, non-toxic, and poisonous lead, tungsten alloy is not hazardous to human security;
Easy to carry tungsten alloy machining, high hardness, thickness and even more up-micron level;
The tungsten metal having the highest temperature, can be used as material in some ray collimator under high temperature.
Physical and mechanical properties:
| Material | Density ( g/cm³) | Tensile Strength ( Mpa) | Elongation ( % ) | HRC |
| 85W-1.5Ni-4.5Fe | 15.8-16.0 | 700-1000 | 20-33 | 20-30 |
| 90W-7Ni-3Fe | 16.9-17.1 | 24-32 | ||
| 90W-6Ni-4Fe | 16.7-17.0 | 24-32 | ||
| 91W-6Ni-3e | 17.1-17.3 | 25-28 | 25-30 | |
| 92W-5Ni-3Fe | 17.3-17.5 | 18-28 | ||
| 92.5W-5Ni-2.5Fe | 17.4-17.6 | 25-30 | ||
| 93W-4Ni-3Fe | 17.5-17.6 | 15-25 | 26-30 | |
| 93W-4.9Ni-2.1Fe | ||||
| 93W-5Ni-2Fe | 17.9-18.1 | 700-900 | 8-15 | 25-35 |
| 95W-3.5Ni-1.5Fe | ||||
| 96W-3Ni-1Fe | 18.2-18.3 | 600-800 | 6-10 | 30-35 |
| 97W-2Ni-1Fe | 18.4-18.5 | 8-14 | ||
| 98W-1Ni-1Fe | 18.4-18.6 | 500-800 | 5-10 | |
| 90W-6Ni-4Cu | 17.0-17.2 | 600-800 | 4-8 | 25-35 |
| 93W-5Ni-2Cu | 17.5-17.6 | 500-600 | 3-5 |
Features:
Large specific gravity: the specific gravity is generally 16.5-18.75g/cm³;
High strength: the tensile strength is 700-1,000Mpa;
Strong ray absorption capacity: 30-40% higher than that of lead;
Large heat conducting coefficient: the heat conducting coefficient of tungsten alloy is 5 times that of mold steel;
Small thermal expansion coefficient: 1/2-1/3 of that of iron or steel;
Good conductivity: it can be widely applied to illumination and electric welding industries because of its good conductivity;
Good weldability and machinability.
Product detail
* High density
* Good machinability
* Good mechanical properties
* High modulus of elasticity
* High absorption capacity against χ-rays and γ-rays
* Harmless to the health and environment