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99.95% pure tungsten heating elments,
Tungsten rods ( bars ) are used to make emission cathodes, high temperature forming rods, support wires, lead-in wires, printer pins, various electrodes, heating elements and refractory parts in high temperature furnaces, etc.
Specification:
Surface: black and polished
Purity: ≥ 99.95%
Density: ≥ 19.2g/cm3,
Surface roughness:< 1.6
Dia: 2.5-120mm
Standard: ASTM, GB/T 4187-2017
Surface Condition:
Black - The surface is as "swaged" or "as drawn," retaining a coating of processing lubricants and oxides.
Bright - The surface is chemically cleaned to remove all lubricants and oxides.
Ground - The surface is centerless ground to remove all coating and to achieve precise diameter control.
Size and Tolerance:
| diameter(mm) | Tolerance of Diameter | length(mm) | Tolerance of length |
| 2-20mm | ±0.03mm | 300-3000 | ±1mm |
| 20-30mm | ±0.03mm | 250-2000 | ±1mm |
| 30-45mm | ±0.05mm | 200-2000 | ±1mm |
| 45-60mm | ±0.05mm | 250-1500 | ±1mm |
| 60-100mm | ±0.1mm | 250-1000 | ±1mm |


Zhengzhou Shibo Nonferrous Metals Products Co., Ltd, as a high technology enterprise was established in 2005, located in Zhengzhou City, Henan Province, China, with registered capital of RMB 20 million, covered an area of more than 6000 square meters and employee more than 100 peoples, we specialized in tungsten&molybdenum ( powder, sheets, rods wires, parts, etc ), MoSi2&SiC heating elements, high temperature lab muffle furnaces, including the development, production, and sales, we always provide our customers top quality products and best service.

Our workshop:

Q: Are you trading company or manufacturer ?
A: We are a factory.
Q: How long is your delivery time?
A: Generally it is 3-5 days if the goods are in stock. or it is 10-20 days if the goods are not in stock, it is according to quantity.
Q: Do you provide samples? is it free or extra ?
A: Yes, we could privide free samples, but do not pay the cost of freight.
Q: What is your terms of payment ?
A: T/T, L/C, or Western Union.
If you have other question, please contact us as following:

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