TZM Alloy

TITANIUM · ZIRCONIUM · MOLYBDENUM

TZM Alloy Products

Titanium–zirconium–molybdenum alloy in rod, bar, plate, sheet, tube and capillary forms. Specify material condition, dimensions and drawing requirements for a quotation.

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Choose the TZM Product Form

Choose the relevant form, then specify grade, material condition, dimensions, tolerances and quantity. The published ranges below are enquiry envelopes; exact size combinations and manufacturing requirements are confirmed during quotation.

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TZM Capillary & Seamless Tube

Ø0.5–10 mm · wall 0.1–3 mm · length 5–1,500 mm

TZM molybdenum bars in square, round, and hexagon shapes, ideal for high-temperature applications and structural uses.

TZM Bar

Round, square and hexagonal · listed section 0.1–60 mm · length 100–1,500 mm

TZM molybdenum plate and sheet, designed for high-temperature applications and precision machining.

TZM Plate & Sheet

Thickness 0.1–40 mm · width 50–600 mm · length 100–1,500 mm

TZM Rod 

TZM Rod

Ø15–100 mm · length 200–1,500 mm

Molybdenum Tube Pipe – Durable Molybdenum Alloy for Industrial Applications

TZM Tube & Pipe

Tailored diameters · wall 0.1–30 mm · length 5–6,000 mm

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TZM Machined Components

Drawing-based nozzles, tooling inserts, supports and other specified parts

Form-Specific Specification Review

ParameterPublished option / requirement
Material:TZM molybdenum alloy.
Listed dimensions:diameter 0.5–10 mm; wall thickness 0.1–3 mm; length 5–1,500 mm.

Specify OD, ID or wall thickness, length, straightness and surface finish. The dimensions are a listed inquiry envelope, not a promise that every diameter/wall/length combination is available. Confirm seamless construction and the proposed manufacturing route for the requested geometry.

ParameterPublished option / requirement
Listed forms:round, square and hexagonal bar.
Listed dimensions:section size 0.1–60 mm; length 100–1,500 mm.
State the geometry explicitly:diameter for round stock, side dimension for square stock, or across-flats dimension for hexagonal stock. Confirm the feasible size and material condition. For tooling or forging-die blanks, provide the blank geometry and machining allowance; a tooling application does not establish an in-house forging capability.
ParameterPublished option / requirement
Listed dimensions:thickness 0.1–40 mm × width 50–600 mm × length 100–1,500 mm.

Specify thickness, width, length, flatness, rolling direction and surface requirements. Ask for the offered condition and dimensional acceptance criteria. The listed envelope does not establish every possible combination or a separate thin-foil supply range.

ParameterPublished option / requirement
Listed dimensions:diameter 15–100 mm × length 200–1,500 mm.

Specify diameter, length, straightness, condition and machining allowance. Rod dimensions are distinct from the small-section bar listing. For furnace supports, tooling or equipment components, include load, temperature, atmosphere and drawing requirements.

ParameterPublished option / requirement
Material:TZM alloy.
Listed dimensions:tailored diameters; wall thickness 0.1–30 mm; length 5–6,000 mm.

Provide OD, ID/wall, length, end details, concentricity and surface requirements. Confirm the offered geometry, construction and process route; the length and wall envelopes are not a guarantee for all combinations.

For TZM custom machined products, including nozzles, tooling inserts, supports or other drawn parts, provide a drawing with material grade, starting condition, finished dimensions, datums, tolerances, threads/holes, quantity and inspection requirements. Material selection and part feasibility require review; no universal tolerance or equipment capability is implied.

Composition, Grade & Material Condition

TZM is a molybdenum-based alloy with titanium, zirconium and carbon additions. A nominal description around 0.5% Ti and 0.08% Zr is common; the existing listing uses 0.02% C, while published supplier examples use other nominal C values within the range below. Nominal composition is not a lot-analysis certificate or a purity grade.

ConstituentExisting reference range (mass %)RFQ confirmation
Titanium (Ti)0.40–0.55Requested alloy specification and analysis
Zirconium (Zr)0.06–0.12Requested alloy specification and analysis
Carbon (C)0.01–0.04Range and test basis for the offered material
Molybdenum (Mo)BalanceImpurity limits and required documentation

The same principal ranges are reported in a published P/M TZM plate data sheet, but that supplier’s plate condition, impurity limits and tolerances do not establish MetalsTek supply guarantees. Confirm chemistry and documents for the actual ordered form.

Selection factorEngineering relevanceWhat to specify
Powder metallurgy or arc-cast routeRoutes can yield different microstructures and downstream behaviour. A general process description does not identify the route of every item.Required route, if it is an acceptance condition; confirm what is offered.
Working historyForging, swaging, rolling or drawing affects grain orientation, dimensions and strength.Product form, test direction, machining allowance and surface condition.
Stress-relieved or recrystallized conditionHeat treatment and recrystallization affect strength, ductility and machining behaviour.Condition and test temperature; do not transfer a stress-relieved value to all conditions.
Long-term loadingCreep and rupture depend on stress, temperature, time and atmosphere.Load, dwell time, thermal cycles, allowable deformation and service environment.

Powder-metallurgy processing generally includes blending, compaction and sintering, followed by working and heat treatment as required. Arc-cast material follows a different consolidation route. This describes material processing options, not a claim that MetalsTek owns every process or machine.

QuestionPure molybdenumTZM alloy
What defines the material?Unalloyed Mo grade and impurity requirements.Mo base with Ti/Zr/C additions and an agreed alloy specification.
Why select it?Consider conductivity, formability and the required material condition.Carbide strengthening can improve elevated-temperature strength and creep resistance; the comparison requires like-for-like condition and testing.
Can melting point define service temperature?No; environment and loading govern service limits.No; melting/liquidus reference values are not maximum working temperatures.
Can it be used in hot air?Oxidation must be assessed.TZM is still molybdenum-based. Do not treat alloying as oxidation immunity or assume it is suitable in air without protection.
Is there a fixed price or strength advantage?Quote and qualify the actual form/condition.No universal cost premium or strength multiplier is offered here.

For furnace, tooling, ion-implantation or thermal-equipment projects, specify temperature, atmosphere, loading, thermal cycling, contamination limits and dimensional stability. These are selection contexts, not nuclear, aerospace or medical approvals. Request application review before using a reference property as a design allowable.

Scope of this existing reference table: the matching published dataset is identified as powder-metallurgy, stress-relieved TZM (Mo–0.5Ti–0.1Zr / Alloy 364). It is engineering reference data, not a test certificate or an acceptance guarantee for all MetalsTek forms. Keep each value with its temperature, time and material-estimate comment; rows explicitly estimated from pure Mo are not independent TZM test data.

Physical Properties
Metric
English
Comments
Density 10.16 g/cc0.3671 lb/in³ 
Mechanical Properties
Metric
English
Comments
Tensile Strength, Ultimate  83.0 MPa12000 psi 
@Temperature 1650 °C@Temperature 3000 °F
490 MPa71100 psi 
@Temperature 1095 °C@Temperature 2003 °F
965 MPa140000 psi 
@Temperature 23.0 °C@Temperature 73.4 °F
Tensile Strength, Yield  62.0 MPa8990 psi 
@Temperature 1650 °C@Temperature 3000 °F
435 MPa63100 psi 
@Temperature 1095 °C@Temperature 2003 °F
860 MPa125000 psi 
@Temperature 23.0 °C@Temperature 73.4 °F
Elongation at Break 10%10%in 50 mm
Rupture Strength 159 MPa23000 psiStress Relief Annealed
@Temperature 1320 °C,@Temperature 2400 °F,
Time 36000 secTime 10.0 hour
Modulus of Elasticity 325 GPa47100 ksiPure Molybdenum
Thermal Properties
Metric
English
Comments
CTE, linear  4.90 µm/m-°C2.72 µin/in-°F 
@Temperature 20.0 – 40.0 °C@Temperature 68.0 – 104 °F
5.90 µm/m-°C3.28 µin/in-°FEstimated from Pure Mo.
@Temperature 20.0 – 250 °C@Temperature 68.0 – 482 °F
6.00 µm/m-°C3.33 µin/in-°FEstimated from Pure Mo.
@Temperature 20.0 – 500 °C@Temperature 68.0 – 932 °F
6.10 µm/m-°C3.39 µin/in-°FEstimated from Mo-0.5Ti
@Temperature 20.0 – 1000 °C@Temperature 68.0 – 1830 °F
Specific Heat Capacity 0.250 J/g-°C0.0598 BTU/lb-°FEstimated from Pure Mo.
Thermal Conductivity 118 W/m-K819 BTU-in/hr-ft²-°F 
@Temperature 500 °C@Temperature 932 °F
Melting Point <= 2620 °C<= 4750 °F 
Liquidus 2620 °C4750 °F 
Chemical Properties
Metric
English
Comments
Carbon, C 0.010 – 0.040 %0.010 – 0.040 % 
Hydrogen, H <= 0.00050 %<= 0.00050 % 
Iron, Fe <= 0.010 %<= 0.010 % 
Molybdenum, Mo 99.40%99.40% 
Nickel, Ni <= 0.0050 %<= 0.0050 % 
Nitrogen, N <= 0.0020 %<= 0.0020 % 
Oxygen, O <= 0.030 %<= 0.030 % 
Silicon, Si <= 0.0050 %<= 0.0050 % 
Titanium, Ti 0.40 – 0.55 %0.40 – 0.55 % 
Zirconium, Zr 0.060 – 0.12 %0.060 – 0.12 % 

For traceability, see the source dataset matching this historical table. Its original test provenance has not been independently established here. Specify the offered product condition and required test report in the RFQ.

Standards & Inspection

Standards must match product form. The ASTM publisher lists B386/B386M-25 for molybdenum/alloy plate, sheet, strip, foil and ribbon, and B387/B387M-23 for bar, rod and wire. These scope references do not certify any offered product.

Specify the required edition, grade, manufacturing route, condition and inspection documents. Do not apply the rod or flat-product standard automatically to tubes, capillaries or finished machined components; agree their applicable requirements separately.

TZM Capillary Tube Product Views

TZM molybdenum capillary tube, seamless design for high-temperature applications in aerospace and industrial processes.
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TZM Moly Capillary Tube Packages
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TZM Capillary Tube Video

TZM Purchasing FAQ

Titanium–zirconium–molybdenum. It is a molybdenum-based alloy with small Ti, Zr and carbon additions; state the required grade, chemistry and material condition.

The existing product listing includes rod, round/square/hex bar, plate/sheet, tube and capillary. Custom machined parts require drawing review. Choose the relevant form above and include its dimensions in the RFQ.

Material grade and condition; size; tolerances and datums; quantity; surface and inspection requirements; application, operating atmosphere and temperature; and the drawing revision. For tubes include OD/ID or wall and length; for plate include thickness/width/length and flatness.

There is no single rating for every TZM component. Temperature, time, load, atmosphere, geometry and condition must be assessed together. The melting-point and mechanical reference table does not establish a service-temperature guarantee.

Related Products

For related purchasing routes, browse the Molybdenum Hub, custom molybdenum parts or Precision Metal Machining Services. Specify TZM explicitly when following a general molybdenum route; it is not the same material as pure Mo.

Packaging & RFQ Checklist

Products are labelled for identification and protectively packed for transport. Confirm any additional cleanliness, handling, inspection records and documentation required for the actual geometry.

Material & Form

✓ TZM grade and chemistry
✓ Starting condition and product form
✓ Dimensions, tolerances and quantity

Application & Drawing

✓ Drawing revision and datums
✓ Operating temperature and atmosphere
✓ Load, dwell and thermal cycles

Inspection & Delivery

✓ Surface and inspection requirements
✓ Requested material documents
✓ Packaging and delivery destination

Related Resources

Compare molybdenum grade and alloy terminology before specifying the material, product form, and condition for a quotation.

A closer look at the tube and capillary product form available within the molybdenum and TZM family.

See where refractory-metal crucibles, supports, rods, and other machined parts fit within vacuum-furnace and crystal-growth assemblies.

Prepare Your TZM Inquiry

Specify TZM explicitly, then include the required product form, material condition, dimensions and quantity. Attach your drawing and acceptance requirements for review.

Request a Quote

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