High Heat Refractory · Molybdenum
Refractory Metal TZM
Refractory Metal TZM is a high heat refractory refractory metal — higher-strength molybdenum alloy. Typical values: 560 MPa yield, 10.16 g/cm³, rated to 1,900 °C. Available for CNC machining, Sheet metal at FabDigit.
Properties
Typical room-temperature values in the Stress Relieved condition. Metric first, imperial in gray. The bars show where TZM sits against the other 8 refractory metal grades in the catalog.
Datasheet
| Yield strength | 560 MPa81 ksi |
|---|---|
| Tensile strength | 850 MPa123 ksi |
| Hardness | 250 HV≈ 238 HB |
| Density | 10.16 g/cm³0.367 lb/in³ |
| Specific strength (yield ÷ density) | 55 |
| Min service temp | -200 °C-328 °F |
| Max service temp | 1,900 °C3,452 °F |
| Electrical conductivity | 32 % IACS18.6 MS/m |
| Machinability | Fair40 / 100 |
| Weldability | Poor20 / 100 |
| Formability | Fair40 / 100 |
Values are nominal handbook figures for design screening. Certified mill or lot data ships with every FabDigit order on request.
Against other refractory metal grades
Strength versus weight in the refractory metal family
Yield strength against density for every refractory metal grade FabDigit runs. TZM is highlighted; hover a dot for its name, or open the interactive family chart.
Manufacturability
The process limits FabDigit's quote engine applies to TZM. Design inside these and the part quotes instantly; outside them it routes to an engineer.
CNC machining
| Machinability | Fair40 / 100 |
|---|---|
| Cutting speed (rough / finish) | — / — |
| Minimum wall | — |
| Minimum internal radius | — |
| Drill depth limit | — |
| Best surface (machined / polished) | Ra — / — |
| Hardenable after machining | — |
Sheet metal
| Formability | Fair40 / 100 |
|---|---|
| Weldability | Poor20 / 100 |
Conditions and tempers
How TZM is supplied and what each state is for. The default is what FabDigit quotes unless your drawing says otherwise.
| Condition | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness |
|---|---|---|---|---|---|
Stress RelievedDefault Heat Treat State | Holds tight flatness/tolerance through heavy machining | — | — | — | — |
Vacuum Annealed Heat Treat State | Contamination-free Ti/Zr — implants, aerospace hardware | — | — | — | — |
Heat treatment and post-processing
Operations FabDigit's suppliers routinely run on TZM, ranked by how often they make sense for this grade.
Post-processing
| Manual Deburr | Deburrstandard |
|---|---|
| Edge Break (0.5mm) | Deburr |
| CMM Inspection | Inspection |
| FAI Report | Inspection |
| Individual Bag | Packaging |
Surface finishes for TZM
Coatings and treatments compatible with refractory metal on the processes TZM runs on. Pick them in the quote configurator or call them out on the drawing.
Marking / Decoration
- Chemical Etching
- Dot Peen Marking
- Electro-chemical Etching
- Embossing / Debossing
- Ink Stamping
- Laser Marking
- Mechanical Engraving
- Steel Stamping
- Vibro Engraving / Scribing
Equivalent designations
Standards and trade names that resolve to Refractory Metal TZM in FabDigit's catalog. Equivalence is nominal — check the exact specification when certification matters.
- UNS
- R03640
- Trade names
- Mo-Ti-Zr
Stock forms
Raw-material forms FabDigit sources TZM in.
Property data is compiled from published supplier and standards handbooks and normalised for comparison; hardness values on non-Brinell scales are converted approximately for charting only. Manufacturability limits are FabDigit quote-engine defaults and may be relaxed by engineering review. Nothing on this page is a certification — request mill certs, CoC or material test reports with your order.