Our Custom Non-Standard W75Cu25 Tungsten Copper Round Bars and Discs are precision-engineered to meet specialized customer dimensions, drawings, and high-stress application requirements. Manufactured through advanced powder metallurgy (pressing, high-temperature vacuum sintering, and copper infiltration), the W75Cu25 alloy (75% Tungsten, 25% Copper) offers high density, superior thermal arc resistance, and exceptional mechanical hardness coupled with high electrical conductivity.
These custom-machined short round bars and thick discs feature a fine surface finish, uniform microstructure, and precise dimensional control, making them ideal for EDM sparking electrodes, heat dissipation substrates, high-voltage arcing contacts, and resistance welding tooling.
Material Grade: W75Cu25 / W75/Cu25 (75% Tungsten, 25% Copper)
Manufacturing Process: Isostatic Powder Metallurgy Sintering & Vacuum Copper Infiltration
Density: Approx. 14.50 g/cm3
Hardness: Approx. 190 - 210 HB
Conductivity (IACS): Approx. 38% IACS
Thermal Conductivity: Approx. 200 - 220 W/(m-K)
Custom Capabilities: Precision lathe turning, surface grinding, centerless grinding, wire EDM, drilling, and polishing according to 2D/3D customer drawings (PDF, CAD, STEP).
Parameter | Custom Specification / Capability |
Alloy Composition | W75Cu25 (75% W / 25% Cu) |
Form Factor | Non-Standard Short Round Bar, Thick Disc, Cylinder |
Diameter Range | Custom diameters available upon request |
Height / Thickness | Custom cut-to-length and precision ground thickness |
Machining Tolerance | Up to +/- 0.005 mm (Per drawing specs) |
Surface Quality | Fine turned, ground, or mirror polished (Ra 0.4 - Ra 1.6) |







Bakit Kami Piliin:
1. Makukuha mo ang perpektong materyal ayon sa iyong pangangailangan sa pinakamababang posibleng presyo.
2. Nag-aalok din kami ng mga presyo ng paghahatid ng Reworks, FOB, CFR, CIF, at door to door. Iminumungkahi namin na gumawa ka ng deal para sa pagpapadala na magiging medyo matipid.
3. Ang mga materyales na ibinibigay namin ay ganap na nabe-verify, mula mismo sa sertipiko ng pagsubok ng hilaw na materyal hanggang sa huling dimensyong pahayag. (Ipapakita ang mga ulat kung kinakailangan)
4. garantiya na magbigay ng tugon sa loob ng 24 na oras (karaniwan ay sa parehong oras)
5. Maaari kang makakuha ng mga alternatibong stock, mga paghahatid ng mill na may pagliit ng oras ng pagmamanupaktura.
6. Kami ay ganap na nakatuon sa aming mga customer. Kung hindi posible na matugunan ang iyong mga kinakailangan pagkatapos suriin ang lahat ng mga opsyon, hindi ka namin ililigaw sa pamamagitan ng paggawa ng mga maling pangako na lilikha ng magandang relasyon sa customer.
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info@zztungsten.com