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) |







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1. Koj tuaj yeem tau txais cov khoom zoo meej raws li qhov koj xav tau ntawm tus nqi tsawg kawg nkaus.
2. Peb kuj muab Reworks, FOB, CFR, CIF, thiab qhov rooj rau qhov rooj tus nqi xa khoom. Peb xav kom koj ua deal rau shipping uas yuav zoo heev.
3. Cov ntaub ntawv uas peb muab yog muaj tseeb tiag, txoj cai los ntawm raw cov ntaub ntawv xeem daim ntawv pov thawj mus rau qhov kawg dimensional nqe lus.
4. lav kom muab cov lus teb tsis pub dhau 24 teev (feem ntau hauv tib lub sijhawm)
5. Koj tuaj yeem tau txais cov khoom lag luam, cov khoom xa tuaj nrog lub sijhawm tsim khoom tsawg.
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