ASTM B386 Molybdenum and Molybdenum Alloy Plate and Sheet
- Mo 360—Unalloyed VAC Mo
- Mo 361—Unalloyed P/M Mo
- Mo Alloy 363—VAC Mo-0.5Ti-0.1Zr (TZM) alloy
- Mo Alloy 364—P/M Mo-0.5Ti-0.1Zr (TZM) alloy
- Mo 365—Unalloyed VAC Mo, Low carbon
- Mo Alloy 366—VAC Mo-30W alloy
ASTM B386/B386M Molybdenum and Molybdenum Alloy Plate, Sheet, Strip, Foil
Golden Sunbird Metals proudly supplies premium ASTM B386 Molybdenum and Molybdenum Alloy Plate and Sheet in Grades 360–366, engineered to deliver exceptional performance in the most demanding high-temperature and precision-critical environments. Manufactured in full compliance with ASTM B386/B386M, these refractory products combine high purity, an ultra-high melting point (>2,620°C), outstanding high-temperature strength, excellent dimensional stability, low thermal expansion, and superior thermal and electrical conductivity. Available in both unalloyed and advanced alloy formulations—including Mo 360 (unalloyed VAC), Mo 361 (unalloyed P/M), Mo 365 (low-carbon unalloyed), TZM Alloys 363 and 364 (titanium-zirconium strengthened), and Mo Alloy 366 (30% tungsten)—our molybdenum plate, sheet, strip, and foil are offered in stress-relieved (SR) or recrystallized (RX) conditions with as-rolled, chemically cleaned, machined, or ground surface finishes. Supplied in a wide range of dimensions (plate up to 30 mm thick; sheet from 0.05 mm; strip and foil down to ultra-thin gauges), they provide excellent machinability and fabrication versatility for complex components. Ideal for critical applications such as high-temperature furnace components, heat shields, hot-zone parts, glass melting electrodes, semiconductor processing equipment, sputtering targets, aerospace structures, and thermal spray coatings, our ASTM B386 molybdenum plate and sheet ensure long service life and reliable performance where other metals fail.
Backed by Mill Test Certificates (EN 10204 3.1/3.2) and optional third-party inspection, Golden Sunbird Metals delivers consistent quality, competitive pricing, and fast global delivery. Request a quote today for custom sizes, tolerances, or full traceability on your next molybdenum project.
Molybdenum 360—Unalloyed vacuum arc-cast molybdenum.
Molybdenum 361—Unalloyed powder metallurgy molybdenum.
Molybdenum Alloy 363—Vacuum arc-cast molybdenum-0.5 % titanium-0.1 % zirconium (TZM) alloy.
Molybdenum Alloy 364—Powder metallurgy molybdenum-0.5 % titanium-0.1 % zirconium (TZM) alloy.
Molybdenum 365—Unalloyed vacuum arc-cast molybdenum, low carbon.
Molybdenum Alloy 366—Vacuum arc-cast molybdenum-30 % tungsten alloy.
ASTM B386/B386M Molybdenum and Molybdenum Alloy Plate, Sheet, Strip, Foil Chemical Composition (wt.%)
| Elements | Molybdenum 360 & 365 | Molybdenum 361 | Molybdenum Alloy 363 & 364 (TZM) | Molybdenum Alloy 366 |
| C | 0.030 max (360), 0.010 max (365) | 0.010 max | 0.010–0.030 | 0.030 max |
| O | 0.0015 | 0.007 | 0.003 | 0.0025 |
| N | 0.002 | 0.002 | 0.002 | 0.002 |
| Fe | 0.01 | 0.01 | 0.01 | 0.01 |
| Ni | 0.002 | 0.005 | 0.002 | 0.002 |
| Si | 0.01 | 0.01 | 0.01 | 0.01 |
| Ti | – | – | 0.40–0.55 | – |
| W | – | – | – | 27–33 |
| Zr | – | – | 0.06–0.12 | – |
| Mo | Balance | Balance | Balance | Balance |
ASTM B386 Molybdenum and Molybdenum Alloy Plate and Sheet Mechanical Properties
| Type/Temper Condition | Thickness Range (in.) | Tensile Strength (min, ksi) | Yield Strength 0.2% offset (min, ksi) | Elongation 2 in. or 50mm min (%) |
| Molybdenum 360, 361, 365 | Various ranges | 95 – 115 | 80 – 95 | 1 – 18 |
| Molybdenum Alloy 363, 364 | 0.010 to 1.5 | 100 – 120 | 85 – 100 | 8 – 10 |
| Molybdenum 360 (RX) | 3/16 to 1.5 | 55 | 25 | 20 |
| Molybdenum Alloy 363, 364 (RX) | 3/16 to 1.5 | 75 | 45 | 10 |
Note: RX indicates an essentially fully recrystallized temper. SR stands for stress-relieved. The range of thickness and properties varies significantly, so these tables consolidate the data for general reference. The actual specifications might require consulting the document for precise values, especially where ranges are provided.
Features
- ASTM B386/B386M molybdenum and molybdenum alloy plate, sheet, strip, foil, and ribbon in a wide range of thicknesses and finishes.
- Available grades include Mo 360, Mo 361, Mo Alloy 363 (TZM), Mo Alloy 364 (TZM), Mo 365, and Mo Alloy 366 (Mo-30W).
- High melting point, excellent high-temperature strength, and low thermal expansion for demanding thermal-service environments.
- Good thermal and electrical conductivity, making the material suitable for electronic and semiconductor-related parts.
- Available in as rolled, as cleaned, as machined, or as ground finish to suit different fabrication needs.
- Supplied with mill test certificate and third-party inspection options for quality-critical projects.
Technical Specifications
| Specification | Value |
| Standard | ASTM B386 Molybdenum and Molybdenum Alloy Plate and Sheet |
| Grade | Molybdenum 360, Molybdenum 361, Molybdenum Alloy 363, Molybdenum Alloy 364, Molybdenum 365, Molybdenum Alloy 366 |
| Condition | As rolled, as cleaned, as machined, or as ground finish |
| Type | Plate, Sheet, Strip, Foil, and Ribbon |
| Plate | Thickness: 2-30mm x Width: 600-700mm x Length: 1000-2000mm |
| Sheet | Thickness:0.05-2mm x Width: 200-600mm x Length: 1000-2000mm |
| Drawing Grade | Sheet thickness: 0.4-1.5mm |
| Strip | Thickness:≤4.75mm x Width:≤127mm |
| Foil | Foil Thickness:≤0.13mm |
| Inspection Certificate | EN 10204 Type 3.1 (Mill Test Certificate), EN 10204 Type 3.2 (Witness Testing or 3rd Party Inspection) |
| Test | Surface Bend Test, Flatness Test |
Applications
- High-temperature furnace components, hot-zone parts, heat shields, and furnace fixtures.
- Electrodes, electrical contacts, and other high-temperature electrical components.
- Semiconductor manufacturing parts, thin-film processing components, and sputtering targets.
- Lighting and electronic device parts where thermal stability and dimensional control are important.
- Thermal spray coating feedstock and materials-processing equipment.
- Glass processing and related high-temperature industrial equipment.
