MOLYBDENUM–TUNGSTEN ALLOY MILL PRODUCTS & PARTS
Mo30W Molybdenum–Tungsten Alloy
Technical sourcing for ASTM Grade 366 and manufacturer-controlled MoW mill products and components.
MNK-G.S.A sources molybdenum–tungsten material by exact composition, production route, product form, dimensions, condition, inspection documents and destination. Mo30W is kept separate from pure molybdenum, TZM and tungsten–copper composites.
Mo30W Is a Defined Alloy Route
ASTM B386/B386M and B387/B387M identify Grade 366 as vacuum arc-cast molybdenum with 30% tungsten. Other commercial MoW descriptions are not assumed to be Grade 366 unless chemistry, route and governing specification are documented.
Material Definition and Supply Scope
ASTM Grade 366
Vacuum arc-cast molybdenum–30% tungsten alloy within the applicable flat- or long-product scope of ASTM B386/B386M and B387/B387M.
Rod and Bar
Forged, extruded, rolled or machined long products sourced by Grade 366 or an agreed manufacturer composition, diameter, length, finish and tolerances.
Sheet, Plate and Foil
Flat products sourced by chemistry, route, thickness, width, length, rolling condition, surface and inspection requirements.
Heating Elements
MoW heating-element and furnace-part inquiries require operating temperature, atmosphere, geometry, electrical loading and joint details.
Custom Components
Machined and fabricated parts are reviewed against drawing, starting form, grain direction, tolerances and inspection plan.
Other MoW Ratios
A commercial MoW designation with a different tungsten content is treated as a separate manufacturer grade and is not called ASTM Grade 366 without evidence.
Typical Global Sourcing Range
The ranges below represent typical global sourcing and manufacturing capability across specialist sources. They are not MNK stock and do not describe one universal factory envelope.
| Product Form | Typical Global Sourcing Range | Notes |
|---|---|---|
| Rod / Bar | Approximately Ø3–120 mm | Available dimensions depend on the exact Mo/W composition. |
| Sheet / Plate / Foil | According to specification | Thickness and format depend on composition, production route and condition. |
| Blanks / Custom Parts | According to drawing | Starting stock and machining feasibility are reviewed individually. |
A size demonstrated for Mo30W is not automatically guaranteed for another Mo/W composition.
Actual availability depends on grade, specification, quantity, tolerances, certification requirements and manufacturing source. Diameter, thickness, width and length must be confirmed as one complete combination.
Standards and Documentation
ASTM B386/B386M-25
Covers Grade 366 vacuum arc-cast molybdenum–30% tungsten plate, sheet, strip, foil and ribbon within its flat-product scope.
ASTM B387/B387M-23
Covers Grade 366 vacuum arc-cast molybdenum–30% tungsten bar, rod and wire within its long-product scope.
Grade Verification
Grade 366 identity requires documented chemistry and production route. “MoW” alone is not sufficient evidence of ASTM conformity.
EN 10204:2004
European inspection-document type may be specified together with chemistry, mechanical, dimensional and traceability requirements supported by the selected source.
EN / DIN Requirements
No EN or DIN grade is assumed equivalent to ASTM Grade 366. Any requested European or national standard is reviewed by exact document number and scope.
Application Documents
Critical parts may require drawing revision control, inspection report, material certificate, additional testing and agreed traceability.
Application Context
High-Temperature Furnaces
Heating elements, shields, supports and fabricated furnace parts where MoW is specified for the service environment.
Thermal Processing
Components for sintering, heat treatment and other high-temperature equipment after atmosphere and load review.
Custom Engineering
Machined and fabricated parts developed from verified Grade 366 or an agreed manufacturer MoW specification.
Capability Note
Published dimensional ranges describe demonstrated manufacturing capability across specialist sources, not guaranteed stock and not one universal mill envelope. Diameter, thickness, width, length, condition, tolerance and quantity must be confirmed as one complete combination for each inquiry.
Send Your Mo30W Molybdenum–Tungsten Alloy Inquiry
Provide the material grade or composition, governing specification, product form, complete dimensions, quantity, inspection-document requirements and delivery destination.