CHEMETAL USA is a leading producer of tungsten heavy alloy rods including tungsten nickel iron alloy (W-Ni-Fe) rod, tungsten nickel copper alloy (W-Ni-Cu) rod. We offer tungsten heavy alloy rods with diameters ranging from 0.029″ to 4.0” or more. Tungsten heavy alloy rod contains tungsten content ranging from 80%-98% with small amounts of molybdenum, nickel, iron and copper elements. We can cut tungsten rod into varying lengths depending on the diameter of the rod chosen by the customer. We offer two types of tungsten rods – black rod and ground rod. The black has a thin layer of oxide adhering to the finished rod. The ground tungsten rod is further processed by passing through the grinding machine which removes the black oxidant coating. Our ground rod has no cracks, burrs and oxidation phenomenon on its surface. Additionally, the forging process refines the grain structure and improves the rigidity.

Tungsten Alloy Rod Specification

Rod Diameter 0.029″ (0.75mm) – 5″ (127 mm)
Rod Length0.15″ (3.81mm) – 40″ (1000mm)
SurfaceGround, Chemical Cleaned, Polished
StandardMil-T-21014, AMS-T-21014, ASTM B 777
CompositionW Ni Fe, W Ni Cu, W Cu

CHEMETAL USA is capable of offering various types of Tungsten rod, Tungsten heavy alloy rod, Tungsten Nickel Iron Alloy (W-Ni-Fe) rod, Tungsten Nickel Copper Alloy (W-Ni-Cu) rod, Copper Tungsten (W-Cu) rod that all meet a consistently high standard of diameter tolerance, roundness, straightness. and machinability.

Tungsten Heavy Alloy Rod Diameter

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

 

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    Composition

    WWNiFeWNiCuWCuWLa

    Dimension in

    Dia. x

    Thk. x x

    Qty. pcs

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    Message

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    CHEMETAL USA specializes in the manufacturing of tungsten heavy alloy rod. We understand that top-quality control is essential to produce products that satisfy our clients. Thus, we have placed a great deal of emphasis on monitoring every step from the beginning of the forging process to the end of the inspection. Hot Isostatic Pressing ensures our tungsten alloy 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 a long service lifespan. The ground rod has no cracks, burrs and oxidation phenomenon on its surface. Our tungsten alloy rod is also heat treated and thoroughly checked with NDT in order to identify and eliminate the crack lines, pores and various other defects. Additionally, the forging process refines the grain structure and improves the rigidity.

    Properties

    • Low thermal expansion
    • High Density
    • Radiation Absorption
    • High thermal and electrical conductivity
    • High arc resistance
    • Hardness and Wear Resistance

    Applications

    • Contact and electrode materials
    • High temperature furnace component
    • Head sink
    • EDM electrode
    • Arc contact

     

    Tungsten Heavy Alloy Standards

    ASTM B 777Class 1Class 2Class 3Class 4
    Tungsten Nominal %9092.59597
    Density (g/cc)16.85-17.25
    17.15-17.85
    17.75-18.35
    18.25-18.85
    Hardeness (HRC)32333435
    Utimate Tensile Strengthksi110110105100
    Mpa758758724689
    Yield Strength at 0.2% off-setksi75757575
    Mpa517517517517
    Elongation (%)5532

    AMS-T-21014
    Class 1
    Class 1
    Class 2
    Class 2
    Class 3
    Class 3
    Class 4
    Composition90W7Ni3Fe
    91W6Ni3Fe
    92W5Ni3Fe
    93W4Ni3Fe95W3Ni2Fe
    96W3Ni1Fe
    97W2Ni1Fe
    Density (g/cm3)17.1±0.15
    17.25±0.15
    17.50±0.15
    17.60±0.15
    18.10±0.15
    18.30±0.15
    18.50±0.15
    Heat TreatmentSinteringSinteringSinteringSinteringSinteringSinteringSintering
    Tensile Strength (Mpa)900-1000
    900-1000
    900-1000
    900-1000
    920-1100
    920-1100
    920-1100
    Elongation (%)18-29
    17-27
    16-26
    16-24
    10-22
    8-20
    6-13
    Hardness (HRC)24-2825-2925-2926-3027-3228-34
    28-36

    Mil-T-21014Class1Class1Class 2
    Class 3
    Class 3
    Class 4
    Composition90%W,
    6%Ni4%Cu
    90%W,
    7%Ni3%Fe
    92.5%W,
    5.25%Ni
    2.25%Fe
    95%W,
    3.5%Ni
    1.5% Cu
    95%W,
    3.5%Ni
    1.5%Fe
    97%W,
    2.1%Ni
    0.9%Fe
    Density (gm/cc; lbs/in3)17;0.61417;0.614
    17.5;0.632
    18;0.65
    18;0.65
    18.5;0.668
    Hardness (RC)242526
    272728
    Ultimate Tensile Strength (PSI)110,000
    120,000
    114,000
    110,000
    120,000
    123,000
    Yield Strength, . 2% Offset (PSI)80,000
    88,000
    84,000
    85,000
    90,000
    85,000
    Elongation (% In 1“)6107775
    Proportional Elastic Limit (PSI)45,000
    52,00046,000
    45,000
    44,00045,000
    Magnetic ProperitiesNilSlightly
    Magnetic
    Slightly
    Magnetic
    NilSlightly
    Magnetic
    Slightly
    Magnetic
    ASTM-B-459-67
    Grade1
    Type Ⅱ && Ⅲ
    Grade1
    Type Ⅱ && Ⅲ
    Grade2
    Type Ⅱ && Ⅲ
    Grade3
    Type Ⅱ && Ⅲ
    Grade3
    Type Ⅱ && Ⅲ
    Grade4
    Type Ⅱ && Ⅲ
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