Pure Tungsten Rod

Tungsten rod is pressed and sintered from our high purity tungsten powders. Our pure tugnsten rod has 99.95% tungsten purity and 19.2 g/cc typical density. We offer tungsten rods with diameters ranging from 0.029″ to 5.0” or more. Hot isostatic pressing ensures our tungsten rods obtain a high density and fine grain size. These two properties are critical to the components fabricated with the rods since it will help the components have an expected performance.

The tungsten rod products offered by CHEMETAL USA are under close inspection and quality control of the microstructure, recrystallization behavior and the mechanical, chemical and physical properties. Our pure tungsten rod is thoroughly checked with NDT (Non-Destructive Testing) in order to identify and eliminate the crack lines, pores and various other defects. We worked hard to optimize the sintering and forging processes in order to cost-effectively achieve a high production yield and homogenous microstructure. Our knowledgeable engineers work closely with our customers to tailor the product’s parameters to the customer’s requirements.

Tungsten Rod

Diameter0.029″ (0.75mm) – 5″ (127 mm)
LengthMaximum 48″ (1020mm)
Density19.2g/cc
SurfaceGround, Polished, Chemical Cleaned
PurityW≥99.95%
StandardASTM B760, ASTM F288

CHEMETAL USA is capable of offering pure tungsten rods that meet the standard conforms to ASTM B760 and ASTM F288. Our advanced fabricating capacities ensure all of our pure tungsten rods consistently deliver the expected performance and dimensions. We also provide various types of Tungsten alloy rods including Tungsten Nickel Iron rod, Tungsten Nickel Copper rod, Copper Tungsten rod, and Lanthanated Tungsten rod.

    Please tell us your requirement by using the RFQ form below or our Request Quote Page.

    Composition

    WWNiFeWNiCuWCuWLa

    Dimension in

    Dia. x

    Qty. pcs

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    Please upload your drawing here.

    Precision Machined Tungsten Rod

    As an ISO certified refractory metal manufacturer with advanced machining facilities, CHEMETAL USA is capable of offering various types of tungsten rods that all meet a consistently high standard of diameter tolerance, roundness, straightness. and machinability. With years of experience in handling tungsten materials, our highly-trained technicians are skilled in offering the following machining services for a variety of tungsten rods made from unalloyed Tungsten, Tungsten Nickle Copper alloy, Tungsten Nickle Iron alloy, Copper Tungsten, Lanthanated Tungsten.

    Machined tungsten rod

    • Turning 
    • Milling
    • Drilling
    • Cutting
    • Joining
    • Forming
    • Grinding
    • Stamping
    • EDM Machining

    Standard Tungsten Rod Diameters

    FormDia. InchDia. InchDia. InchDia. InchDia. Inch
    Rod0.030.2750.6251.151.33
    Rod0.040.300.651.1752.00
    Rod0.050.3250.6751.202.30
    Rod0.060.350.701.2252.75
    Rod0.070.3750.7251.252.80
    Rod0.080.400.751.2752.875
    Rod0.090.4250.7751.303.00
    Rod0.100.450.801.3253.15
    Rod0.1250.4750.8251.353.25
    Rod0.150.500.851.3753.75
    Rod0.1750.5250.8751.403.80
    Rod0.200.550.901.604.00
    Rod0.2250.5750.9251.754.20
    Rod0.250.601.001.804.50
    Rod0.240.55
    1.251.905

    The tungsten rod products offered by CHEMETAL USA are subject to close inspection and strict quality control. The microstructure and recrystallization behavior, as well as the mechanical, chemical, and physical properties are all closely monitored. We have also worked hard to optimize the sintering and machining processes in order to cost-effectively achieve a high production yield and homogenous microstructure.

     

    Uses of Pure Tungsten Rods

    • Furnace pillars for sapphire crystal furnaces and other vacuum furnaces
    • Furnace heater for sapphire crystal furnaces and other vacuum furnaces
    • Tungsten headpieces for the industries of quartz
    • Stirring bars for glass smelting and rear-earth smelting
    • Tungsten heavy hammers
    • Connecting rods
    • Screws/bolts and other fasteners
    • Furnace support pillars
    • Electrodes for welding electrodes and rare earth metal industry

    Pure Tungsten Rod Properties

    • High Density: 19.25 g/cm³
    • High Melting Point: 3422°C (6192 °F)
    • Low Vapor Pressure
    • High Tensile Strength
    • Low Coefficient of Thermal Expansion
    • Low Electrical Resistivity
    • Good Machinability
    • High Absorption Capacity
    • High Elastic Modulus

    Tungsten Physical Properties

    Tungsten Mechanical Properties

    Density0.70 lb/in3
    19.27 gm/cm3
    Tensile Strength250 (1725) ksi (Mpa)-RT
    Melting Point6170 °F
    3410 °C
    150 (1035) ksi (Mpa)-500°C
    Thermal Conductivity0.48 cal/cm2/cm°C/sec75 (515) ksi (Mpa)-1000°C
    Specific Heat0.032 cal/gm/°CElongation
    Coefficient Thermal Expansion4.30 micro-in/°F x 10-6
    2.40 micro-in/°C x 10-6
    Hardness300 dph
    Electrical Resistivity5.50 microohm-cmModules of Elasticity58000 ksi
    400 gpa

    Tungsten Alloy Rod

    Tungsten Heavy Alloy Rod (WNiFe/WNiCu Rod)

    Tungsten heavy alloy rod is tungsten (85% to 99% weight percentage) based alloy doped with nickel (Ni), copper (Cu) and iron (Fe) using the liquid-phase sintering method. Tungsten heavy alloy rod is well known for its high density (16.5g/cc to 19.0g/cc). Therefore, it is also called high density tungsten alloy rod. Apart from the high density, the WNiFe and WNiCu rods also have other advantageous properties such as excellent strength, low thermal expansion and better machinability compared to pure tungsten rod. Because of these promising properties, tungsten heavy alloy rod is aggressively being used in many applications. More about tungsten nickel iron and tungsten nickel copper rod >>>

     

    Tungsten Copper Rod (W Cu Rod)

    Tungsten copper rod presents an excellent conductivity and resistance at a high temperature and electrical erosion environment. Its tungsten skeleton structure provides high-temperature strength. The infiltrated copper performs a superior cooling effect when the working temperature reaches 3000°C even in extremely short periods. Tungsten copper rod is composed in a range of ratios from W Cu 50/50 to W Cu 90/10 using the infiltration sintering method. Tungsten and copper are mutually insoluble and have distinct differences in melting point, density, and many other physical properties. The various ratios of infiltrated tungsten copper rods exhibit well-combined physical and mechanical properties that can be used for many different applications. More about tungsten copper rod >>>

     

    Lanthanated Tungsten Rod (W La Rod)

    Lanthanated tungsten rod is made by doping oxide lanthanum into tungsten through the dispersion strengthening method. By adding lanthanum oxides, the alloyed tungsten rod exhibits enhanced heat resistance, conductivity, and higher crystallization temperature compared with pure tungsten rod. Lanthanated tungsten rod is a preferred material for welding electrodes. Its good current carrying capacity, low spark erosion and no radioactive hazard help maintain its irreplaceable position in DC and AC welding applications. More about lanthanated tungsten rod >>>

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