To specification
Custom W/Cu Parts
Near-net shapes and special profiles
Low-tungsten (<80% W) alloys only · MOQ: Quoted per part · Lead time: 20–25 days (tooling + machining)
Overview
Made by infiltration, finished by machining
Send a drawing and we quote it: shaped infiltrated blanks, profiled segments, composite assemblies, and special geometries in W/Cu 75/25 or 70/30. Tooling and machining are quoted per part — no hidden minimums.
Note: we supply alloys below 80% tungsten only. This keeps every shipment outside dual-use export controls and clears routine customs handling.
Material values shown are typical for the grade. Per-batch composition, density and hardness reports are provided on request — see quality control.
| Grades | W/Cu 75/25 · W/Cu 70/30 |
| Max dimensions | OD 400 mm × thickness 100 mm |
| Tolerances | OD 0/+0.5 mm · thickness ±0.1 mm · bore H7 · runout 0.02 mm |
| Lead time | 20–25 days (tooling + machining) |
| MOQ | Quoted per part |
Typical applications
- Near-net infiltrated blanks
- Profiled segments and plates
- Special welding fixtures
In depth
Engineering notes
How a custom quote runs
Send the drawing — PDF, DWG, STEP, or a marked-up photo of the old part — plus alloy grade, quantity and your delivery port. Within 24 hours you have a firm unit price, tooling cost if any, and a lead time; the quote holds for 7 days because tungsten raw material moves.
First articles are quoted at one-piece quantities with no penalty: we do not use minimum-order pricing to force volume. If the part works in your process, repeat batches run off the same program at the same price basis, with raw-material movement as the only variable.
What the floor can take on
The machine park covers turning, milling, drilling, threading and surface grinding across fifteen lathes plus machining centers, with parts up to 400 mm OD × 100 mm thickness. Common custom work includes:
- Wheels with keyed bores, R profiles and knurl faces to drawing
- Threaded studs and shanks in metric, UNC/UNF and special forms
- Profiled segments, blocks and near-net blanks for EDM and fixture work
- Water-jacketed holders and assemblies where W/Cu faces a cooled shank
The composition line, stated plainly
We quote W/Cu 75/25 and 70/30 only. Every alloy below 80% tungsten ships as ordinary industrial goods — standard HS classification, no export-license step, routine customs in the EU, US, Japan and Korea.
If your drawing specifies a grade above that line, we decline and say so in the first reply rather than after your tooling is committed. It keeps our supply chain predictable, and your deliveries with it.
Technical library
Further reading
The guides engineers read before they write the second drawing.
- Ordering custom electrode wheels and parts What a complete drawing package looks like, and what happens after you send it.
- How tungsten copper is made: the infiltration process How composition is set, and why the tungsten skeleton caps what a custom grade can do.
- Tungsten copper vs molybdenum for EDM When moly is the better refractory for a custom electrode — and when it quietly is not.
- Properties and density by grade Density, conductivity and hardness with the test conditions stated next to them.
- Heat sink grade selection If the part spreads heat rather than carries current, start from this page instead.
Also from the same floor
Pair it with
Best seller CuW75 · 75% Tungsten
W/Cu 75/25 Electrode Wheels
The workhorse alloy for seam-welding wheels
View specs
High conductivity CuW70 · 70% Tungsten
W/Cu 70/30 Electrode Wheels
Higher conductivity for heavy-current welding
View specs
Stock shapes CuW75 / CuW70
Electrode Rods & Blocks
Stock shapes machined from infiltration bar
View specs
Need Custom on a drawing?
Send alloy, dimensions and quantity — quote back within 24 hours.