Tungsten, molybdenum and heatspreader materials

Processed products, etc.

Molybdenum products

Molybdenum wires and rods
●Product selection guide

◎Most suitable  ○Suitable  △Unsuitable

Application Non-sag Shock resistance/
Quakeproof
Machinability Wear
resistance
MOP Structural materials, heaters, bolts, nuts
MOS Grids, mandrels, anchors
TEM Supports, heaters, bolts, nuts,
supporting shafts for X-ray tubes
MOP
This is the most common pure molybdenum material and features a high melting point, high strength at high temperatures, good heat conduction, small thermal expansion coefficient and excellent machinability.
MOS
There are cases where plain molybdenum materials cause pitch irregularities when grids are formed with high-speed coil winders. The coiling ability and working range of MOS have been improved by composition control at the raw material stage.
TEM
TEM is a high-quality molybdenum material that has overcome the weak points of brittleness and deformation at high temperatures of conventional molybdenum. It features excellent high-temperature deformation resistance, high recrystallization temperatures and wedge-shaped recrystallization structures. Even after it has been used at high temperatures, it excels in shock resistance, and allows deformation processing at ordinary temperatures. It also features higher bending ability than pure molybdenum.
●Standard specifications of molybdenum wires
Diameter range
(mm)
Material Representative spec
MOP MOS TEM Finish Tolerance
Diameter
Tolerance
MG
Black Annealing Electrolytic
0.02~0.19   ±0.005mm ±3%
0.20~0.39 ±0.005mm ±2%
0.40~0.49 ±0.01mm ±2%
0.50~0.59 ±0.02mm  
0.60~0.79 ±0.03mm  
0.80~0.99 ±0.03mm  
1.0~1.4 ±0.05mm  
1.5~2.9   ±0.05mm  
3.0~3.9     ±0.1mm  
●Standard specifications of molybdenum rods
Diameter
range
(mm)
Material Representative spec
MOP MOS TEM Finish Tolerance
Diameter
Finish
grinding
※1
Tolerance
Diameter
Black Electrolytic Acid
cleaning
0.02~0.19         ±0.005mm    
0.20~0.39   ±0.005mm    
0.40~0.49   ±0.01mm    
0.50~0.59   ±0.02mm    
0.60~0.79   ±0.03mm    
0.80~0.99   ±0.03mm ±0.02mm
1.0~1.4   ±0.05mm ±0.02mm
1.5~1.9   ±0.05mm ±0.02mm
2.0~2.9   ±0.05mm ±0.03mm
3.0~3.9   ±0.15mm ±0.03mm
4.0~4.9   ±0.15mm ±0.03mm
5.0~6.3     ±0.2mm ±0.05mm
6.4~11.9     ±0.3mm ±0.05mm
12.0~14.9       ±0.4mm ±0.1mm
15.0~20.9       ±0.5mm ±0.15mm
21.0~25.9       ±0.7mm ±0.15mm
26.0~35.9       ±1.0mm ±0.2mm
36.0~50.0         ±1.0mm ±0.2mm

※1 Finish grinding: Centerless grinding for wires and rods of 25mm or less in diameter and
belt grinding for wires and rods larger than 25mm in diameter.

●Manufacturing range of length of standard molybdenum rods
Diameter(mm) 50 46 42 36 32 26 21 16 11 8 6 5
Length MAX 1000 1250 1500 2000 2600 3000 3000 3000 5000 9500 18000 22000
Standard 1000 1250 1500 2000 1200 1800 1400 1200 1000 1000 1000 1000
●Purity of molybdenum wires and rods
TYPE Mo %
MOP、MOS 99.95 min.
TEM 99.00 min.
●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

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