Achemetal Tungsten & Molybdenum Co., Ltd.
Subtlety and perseverance
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Product Detail
Specification | Specification | ||||
| Material | Density ( g/cm3 ) | Tensile Strength ( Mpa) | Elongation ( % ) | HRC |
| 90W-Ni-Fe/Cu | 16.9-17 | 700-1000 | 20-33 | 24-32 |
| 93W-Ni-Fe/Cu | 17.5-17.6 | 100-1000 | 15-25 | 26-30 |
| 95W-Ni-Fe /Cu | 18-18.1 | 700-900 | 8-15 | 25-35 |
| 97W-Ni-Fe /Cu | 18.4-18.5 | 600-800 | 8-14 | 30-35 |
Tungsten-based high specific gravity alloys are widely used because of their high density, high strength, high hardness, good ductility, electrical and thermal conductivity, and other comprehensive excellent properties.
The tungsten-based high specific gravity alloys produced by Acme meet the requirements of ASTM-B 777.
Chemical composition
| Chemical composition | ||
| element | Max | Tolerance |
| C | 0.01 | ±0.002 |
| O | 0.01 | 10% |
| N | 0.01 | +0.0005 |
| Fe | 0.01 | +0.001 |
| Ni | 0.01 | +0.01 |
| Si | 0.01 | +0.01 |
Advantages:
High specific gravity
Easy to cut and process
Excellent mechanical properties
High modulus of elasticity
Effective absorption of x-rays and γ-rays (absorption of x-rays and
γ-rays is about 30%-40% higher than that of lead)
No harm to environment and health
Product Description
Tungsten based high specific gravity alloys are also known as high density tungsten based metals or high specific gravity tungsten alloys. According to the American Standard ASTM B777-2007, tungsten-based high specific gravity alloys are divided into four grades, in which the tungsten content is 90%, 92.5%, 95% and 97% respectively, and the rest are nickel, iron and copper.
Production Process
The lowest requirements on mechanical properties
| Level | Ultimate tensile strength | Yield strength (0.2% residual deformation) | Elongation (%) | ||
| Kilopound/inch 2 | MPa | Kilopound/inch 2 | MPa | ||
| 1 | 110B | 758 | 75 | 517 | 5B |
| 2 | 110B | 758 | 75 | 517 | 5B |
| 3 | 105B | 724 | 75 | 517 | 3B |
| 4 | 100 | 689 | 75 | 517 | 2B |
| A. Measure by an extensometer with the accuracy of lower than 0.5%. B. 1/2/3-level nonmagnetic materials have the lowest ultimate tensile strength of 94 kilopound/inch 2(648MPa); The minimum elongation: level 1 and level 2, 2%; level 3, 1% | |||||
Application
Radiation shielding
Counterweights
Uranium Substitute Materials
Electric upsetting anvil block
Balls for submunitions and armor-breaking bullets
High voltage electrical contacts
Electrodes for resistance welding
Packing & Delivery