TZM MOLYBDENUM ALLOY MILL PRODUCTS & COMPONENTS
TZM Molybdenum Alloy — Technical Sourcing
Specification-led sourcing for TZM sheet, plate, foil, rod, bar, forgings and parts to drawing.
MNK-G.S.A sources TZM by the governing grade, production route, dimensions, condition, documentation and application requirements. ASTM grades and manufacturer trade descriptions are verified before quotation.
TZM Is a Defined Molybdenum Alloy, Not a Generic Label
ASTM B386/B386M and B387/B387M define TZM as molybdenum alloyed with nominal 0.5 % titanium and 0.1 % zirconium in specified vacuum arc-cast and powder-metallurgy grades. Exact chemistry, condition and properties remain certificate-controlled for every supply. Technical sources and limitations.
Material Definition and Supply Scope
ASTM Grade 363
Vacuum arc-cast molybdenum–0.5 % titanium–0.1 % zirconium TZM within the product-form scope of ASTM B386/B386M or B387/B387M.
ASTM Grade 364
Powder-metallurgy molybdenum–0.5 % titanium–0.1 % zirconium TZM within the applicable flat- or long-product specification.
Sheet, Foil and Plate
Rolled flat products sourced by thickness, width, length, production route, condition, surface finish and mechanical-property requirements.
Rod, Bar and Forgings
Forged, extruded, swaged, rolled or ground products sourced by complete size combination, surface condition, tolerances and required properties.
Custom Components
Isothermal-forging tooling, furnace components, dies, nozzles and engineered parts reviewed against drawing and operating requirements.
Material Verification
A commercial description of “TZM” does not by itself prove ASTM Grade 363 or 364. Production route, chemistry and required properties are confirmed from the governing specification and certificate.
Typical Global Sourcing Range
The examples below are tied to named public catalogues. They are not MNK stock or one universal TZM manufacturing envelope. Confirm grade, route, condition and complete dimensions together. Technical sources and limitations.
| Product Form | Source-specific dimensional example | Notes |
|---|---|---|
| Wire | Heeger Materials: Ø0.5–4 mm | Catalogue wire example; coil/cut length, finish and Grade 364 conformity require confirmation. |
| Rod / Bar | Heeger Materials: Ø4–100 mm; length <2000 mm | Drawing/swaging catalogue programme. The diameter and length limits are not a guarantee of every combined size. |
| Sheet / Plate | See the named TZM flat-product examples below. | Thickness alone does not establish available width, length or delivery condition. |
| Width / Length | Confirmed with the selected thickness and source | The achievable format depends on thickness and manufacturer. |
| Custom Parts | According to drawing | Grade, production route and feasibility are verified before quotation. |
No general 80 mm TZM plate capability is asserted here. A special thickness needs a source-specific offer for the complete size and condition.
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.
TZM Flat Products: Confirmed Catalogue Examples
The following rows are separate programmes. Do not combine a thickness from one source with the width or length of another. Technical sources and limitations.
| Product and thickness band | Published format limits | Ordering note |
|---|---|---|
| A.L.M.T. TZM sheet/plate: 1–35 mm | Width ≤600 mm; length ≤1000 mm | TZM-specific catalogue row; confirm boundary values, finish and the complete thickness × width × length with the manufacturer. These three dimensional references were rechecked on 23 September 2026. |
| Elmet TZM plate: selected listed thicknesses | 6.35 mm / 12.7 mm / 25.4 mm / 50.8 mm | Discrete catalogue thicknesses, not a continuous size envelope. Width and length must be quoted separately for the chosen thickness. |
For rod or bar, specify diameter, finished length, straightness and machining allowance together. For wire, state coil or cut-length supply, surface condition and the minimum usable continuous length. ASTM Grade 363 or 364 and the production route must be confirmed independently of these dimensional examples.
Standards and Documentation
ASTM B386/B386M-25
Covers TZM flat products as Grade 363 for vacuum arc-cast material and Grade 364 for powder-metallurgy material, together with defined chemistry and mechanical requirements.
ASTM B387/B387M-23
Covers TZM bar, rod and wire as Grades 363 and 364 within the standard’s long-product scope.
Manufacturer Specifications
Elmet PD-7011, issue 1 dated 19 May 2021, identifies P/M TZM plate 2703. Its powder chemistry includes Ti 0.4–0.55 wt.%, Zr 0.06–0.12 wt.% and C 0.01–0.04 wt.% by mass. Plate is stress-relieved unless otherwise requested; tensile requirements are agreed with the purchase order. Technical sources and limitations.
EN 10204:2004
Inspection documents may be requested under the European framework, including a specified 3.1 or 3.2 document type when the supply chain can support it.
EN / DIN Requirements
A European or national product standard is applied only when its exact number, edition and scope are stated. EN 10204 defines documents, not TZM chemistry or dimensional tolerances.
Order Definition
The purchase specification should state ASTM grade or approved manufacturer grade, production route, product form, condition, dimensions and required tests.
Reference Physical and Mechanical Properties
Reference Basis
Reference: H.C. Starck Solutions, High Performance Alloys for Plastic Injection Molding, DPAP 03/2020, page 4. These six physical-property references were rechecked on 23 September 2026. The table describes a TZM family without assigning every value to a particular grade, processing condition or test direction. It is not an ASTM acceptance table. Technical sources and limitations.
Density and Melting Range
Brochure reference: density 10.22 g/cm³; melting range 2500 to 2600 °C. Density measurement temperature is not stated. Melting range is not an allowable service-temperature range.
Thermal Expansion
Mean linear thermal expansion over 20-100 °C: 5.3 ×10⁻⁶/K TZM (H.C. Starck DPAP 03/2020); H.C. Starck Solutions. TZM family reference; interval-average coefficient for 20-100 °C only. Source: H.C. Starck - High Performance Alloys for Plastic Injection Molding (DPAP 03/2020, p. 4, TZM characteristics / Thermal expansion at 20-100 C). Reviewed: 2026-09-23.
Thermal Conductivity and Heat Capacity
Thermal conductivity at 23 °C: 126 W/(m·K) TZM (H.C. Starck DPAP 03/2020); H.C. Starck Solutions. TZM family reference at 23 °C. Source: H.C. Starck - High Performance Alloys for Plastic Injection Molding (DPAP 03/2020, p. 4, TZM characteristics / Thermal conductivity at 23 C). Reviewed: 2026-09-23.
Specific heat at 23 °C: 270 J/(kg·K) TZM (H.C. Starck DPAP 03/2020); H.C. Starck Solutions. TZM family reference at 23 °C. Source: H.C. Starck - High Performance Alloys for Plastic Injection Molding (DPAP 03/2020, p. 4, TZM characteristics / Specific heat at 23 C). Reviewed: 2026-09-23.
Elastic Modulus
Brochure reference: 320 GPa; test temperature and direction are not stated. Obtain temperature-dependent data for the actual product when required for design.
Tensile Properties
The brochure lists tensile strength 560–1150 MPa and elongation <20 %, but does not specify a common product size, condition or tensile-test temperature. These are not procurement minima. Agree the required values for the exact grade, form, size and condition. Technical sources and limitations.
Application Context
Forming and Tooling
TZM is considered for high-load and elevated-temperature tooling where the selected grade, geometry and operating conditions support its use.
Furnace and Thermal Systems
Hot-zone hardware, supports, heat shields and furnace components require review of temperature, atmosphere, loading and fabrication route.
Precision Components
Dies, nozzles, electrodes and custom parts are sourced after technical review of drawing, tolerance, surface and inspection requirements.
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.
Technical Sources and Revision
Wire and rod dimensions from Heeger and the four selected Elmet plate thicknesses were rechecked on 15 October 2026 and are maintained in the shared technical registry. Other source review dates remain unchanged.
Technical source review: 15 September 2026. Document dates below are separate from this review date. Public references do not imply a partnership, MNK stock or guaranteed availability.
Sources and scope
- ASTM B386/B386M-25: official scope for flat products and grade definitions
- ASTM B387/B387M-23: official record for bar, rod and wire
- Elmet PD-7011, issue 1 (19 May 2021), page 1: P/M TZM plate 2703, powder chemistry and stress-relieved condition
- H.C. Starck Solutions, DPAP 03/2020, page 4: TZM family reference properties; individual product/test conditions are not fully specified
- A.L.M.T., processing-products page, TZM row: sheet/plate thickness and format limits; no document revision shown
- Elmet, TZM Plate: discrete catalogue thicknesses, not a complete width/length guarantee; no document revision shown
- Heeger Materials, TZM wire and rod sections: source-specific dimensions only; no blanket adoption of its standards or equivalence claims
Related materials and comparisons
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