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.
Product 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 specifications
Components, density and hardness performance
| Level | Nominal tungsten content, weight % | Density,g/cm³ | Hardness AB, Rockwell C (largest) |
| 1 | 90 | 16.85～17.25 | 32 |
| 2 | 92.5 | 17.15～17.85 | 33 |
| 3 | 95 | 17.75～18.35 | 34 |
| 4 | 97 | 18.25～18.85 | 35 |
| A. Other hardness testing methods can be adopted if there are stipulations from demanders; B. The hardness of machined or time bond materials can reach Rc46. | |||
The lowest requirements on mechanical properties
| Ultimate tensile strength | Yield strength (0.2% residual deformation) | Elongation (%) | ||
| Kilopound/inch 2 | MPa | Kilopound/inch 2 | MPa | |
| 110B | 758 | 75 | 517 | 5B |
| 110B | 758 | 75 | 517 | 5B |
| 105B | 724 | 75 | 517 | 3B |
| 100 | 689 | 75 | 517 | 2B |
Product detail
Product process
Packaging
Packaging Details packing with Standard wooden case fixed with foam inside.
Lead Time:
| Quantity(kilograms) | 1 - 10 | 11 - 20 | 21 - 30 | >30 |
| Est. Time(days) | 20 | 25 | 30 | To be negotiated |
shipping
Product application
Sports Goods Series Products
Benchmark of tungsten alloy Darts
Tungsten alloy fishing pendant series: bullet type, drop type, round pipe type, semi-drop type, cylindrical holed type
Tungsten bead and tungsten ball series: φ1.5mm -φ10mm, accuracy: ±0.01mm, application to fishing pendant counterweights, cluster bombs, medical instrument counterweights, sporting gun shots; φ0.1mm-φ10mm, accuracy: ±0.1mm, application to petroleum drilling balances, sporting gun shots.
Counterweight Products
High-density tungsten-based alloy counter weight series: balance weights for machinery; flyweights; petroleum drilling counterweight rods; dart rods; golf counterweight blocks; racing counterweight blocks; mobile phone and game machine vibrators; gyroscopes for aerospace; clock pendulum bobs; balance weight balls; anti-vibration cutter rods
Medical Instruments
Medical tungsten alloy ray shielding material series:tungsten alloy grating blades;
tungsten alloy protection tanks: application to radioactive shielding walls in medical treatment; shielding needle pipes: application to medical radioactive liquid shields;
tungsten alloy memories: application to tanks, boxes and other containers for storing radioactive substances;
collimators: for tungsten alloy series inspection container systems in the application of medical linear accelerators and nuclear technologies; Co60: shielding of other radiation.
Electric Appliance Material
Electrodes for EDM and electrodes for electric resistance welding; high-specific-gravity electric contacts, contacts in air circuit breaker
Military Products
Armour-piercing bullets;cluster bombs, balls, bars, square beads and cylinders; other tungsten alloy electric rammer blocks; tungsten alloy in applications of nuclear technologies.
High-specific-gravity Alloy Heat Sink Material
With high-temperature resistance and good heat dissipation performance, high-specific-gravity tungsten alloy material shave been started to be used as heat sink materials in quantity in various computer CPUS of the electronic industry at present.
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