A.L.M.T. Corp.

Molybdenum rods

High performance grades are available for furnace parts, heaters, etc.

Beyond molybdenum wires, rods are also available. As a high melting point metal easier to be processed than tungsten, it is mainly used for high-temperature furnace parts applications. We have various wire diameters and finishings according to the application. We also offer materials that have higher performance by adding trace elements (TEM), taking advantage of our integrated production.

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Product selection guide

MOP The most common pure molybdenum material with high melting point, high temperature strength, good thermal conductivity, low thermal expansion coefficient and excellent workability.
MOS General molybdenum materials may cause pitch irregularities when grids are formed with high-speed coil winders. For the MOS type, we improved coiling performance and working range by adjusting components starting at the raw material stage.
TEM A high quality molybdenum material that has overcome the disadvantages of conventional molybdenum brittleness and deformation at high temperature. It has excellent high temperature deformation resistance, high recrystallization temperature, and wedge-shaped recrystallized structure. It is excellent in impact resistance even after being used at high temperature; it also allows for deformation processing at normal temperature, with foldability larger than that of pure molybdenum.

To see the whole table, scroll sideways.

Application Non-sag Shock
resistance/
Quakeproof
Machinability Wear
resistance
MOP Structural materials, Heaters, Bolts, Nuts
MOS Grids, Mandrels, Anchor
TEM Supports, Heaters, Bolts, Nuts, Supporting shafts for X-ray tubes.

◎Most suitable
○Suitable
△Unsuitable

Standard specifications of molybdenum rods

To see the whole table, scroll sideways.

Diameter range
(mm)
Material Representative spec
MOP MOS TEM Finish Tolerance diameter Finish grinding * 1 Tolerance diameter
Black Electrolytic Acid cleaning
0.02 to 0.19         ±0.005mm    
0.20 to 0.39   ±0.005mm    
0.40 to 0.49   ±0.01mm    
0.50 to 0.59   ±0.02mm    
0.60 to 0.79   ±0.03mm    
0.80 to 0.99   ±0.03mm  
1.0 to 1.4   ±0.05mm ±0.02mm
1.5 to 1.9   ±0.05mm ±0.02mm
2.0 to 2.9   ±0.05mm ±0.03mm
3.0 to 3.9   ±0.15mm ±0.03mm
4.0 to 4.5   ±0.15mm ±0.03mm
4.6 to 4.9     ±0.15mm ±0.03mm
5.0 to 6.3     ±0.2mm ±0.05mm
6.4 to 8.5     ±0.25mm ±0.05mm
8.6 to 11.9       ±0.3mm ±0.05mm
12.0 to 14.9       ±0.4mm ±0.1mm
15.0 to 21.9       ±0.5mm ±0.15mm
22.0 to 25.9       ±0.6mm ±0.15mm
26.0 to 27.9       ±0.7mm ±0.2mm
28.0 to 50.0         ±1.0mm ±0.2mm

* 1 Finish polishing : Centerless polishing for <D30 mm, cutting belter polishing for ≧D30mm
* 2 Please contact us for product ≧50mm.

Purity of molybdenum wires and rods

TYPE Mo %
MOP、MOS ≧99.95
TEM ≧99.00

Bending ability of TEM rods

Bending ability of TEM rods

Excellent high-temperature deformation resistance of TEM rods, and examples of heater use

Excellent high-temperature deformation resistance of TEM rods,  and examples of heater use