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- Supplier: Luoyang Advanced Refractory Metals Co. Ltd.
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Product Overview
Description
Wolfram price kg
Product Description
Application: pure tungsten rod
Tungsten rods are mainly used as heater, support pillar, feeder and fastener in vacuum or reducing atmosphere high temperature furnace. Moreover, serve as light source in lighting industry, electrode in glass and tombarthite melting, and welding equipments. pure tungsten rod
Description:
Tungsten rod can be manufactured in random length pieces or cut to meet customers' desired lengths. There are three different surface processes which are provided upon the desired end use: pure tungsten rod
1. Black tungsten rod - Surface is "as swaged" or "as drawn"; retaining a coating of processing lubricants and oxides;
2. Cleaned tungsten alloy rod- Surface is chemically cleaned to remove all lubricants and oxides; pure tungsten rod
3. Ground tungsten rod- Surface is centerless ground to remove all coating and to achieve precise diameter control.
Features:
The outstanding feature of tungsten rod is that they can be batch operated. Among the rod-like metal materials, tungsten rod has the highest melting point. In heat, electric conduction and electron emission, it performs very well. The tungsten rod is also characterized by high density, low dilatation coefficient and lowest metallic vapor pressure.he density of our tungsten rod is higher than 18.8g/cm3; purity, 99.5%. This has met the GB 4187-84 and ASTM Standard.
Chemical Composition
| Grade | Tungsten content | Contents of impurity element | |
| Total content | Each content | ||
| W1 | 99.95% min | 0.05% max | 0.01% max |
| W2 | 99.92% min | 0.08% max | 0.01% max |
| WAL1, WAL2 | 99.95% min | 0.05% max | 0.01% max |
Theoretical density: 19.3g/cm3
Melting Point: 3422℃
Electric condctivity: 30% IACS Min
Rigidity: 69 HRA Min
Parameters of Tungsten Alloy Rod: ( Note: Your special request for tungsten bar billet be available.)
| Machining | Diameter | Diameter tolerance % | Max length, mm |
Forging, Rotary swaging | 1.6-20 | ±0.1 | 2000 |
| 20-30 | ±0.1 | 1200 | |
| 30-60 | ±0.1 | 1000 | |
| 60-70 | ±0.2 | 800 |
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Packaging & Shipping
We offer material composition sheet and examination report which include density, flaw detection, dimensions and so on. Our products are packed in plywood case with expanded plastic. What's more, the case is moistureproof and grooved for products being placed stably.
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We have 15 years experiences in producing and saling qualified Refractory metals to our customers
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