Tungsten Alloy

  • Tungsten Alloy
  • General Characteristics

    Tungsten based P/M composite materials are outstanding due to high density and good mechanical properties. HPM 1700 to 1850 materials provide a solution in a wide range of applications requiring concentrated weight or density in a limited space. Typical applications include balance weights, radiation protection, vibration absorbers, heat transfer and drilling bars.

  • Chemical Properties

    Property Units HPM

    1700

    HPM

    1701

    HPM

    1750 sheets

    HPM

    1760

    HPM 1760H forged HPM

    1800

    HPM

    1801

    HPM

    1850

    Tungsten % ≥90.0 ≥90.0 ≥92.5 ≥92.5 ≥92.5 ≥95.0 ≥95.0 ≥97.0
    Binder Ni-Fe Ni-Cu Ni-Fe Ni-Fe Ni-Fe Ni-Fe Ni-Cu Ni-Fe
  • Physical Properties

    Density gr/cm3(lbs/in3) 17.0±0.2 (0.614±.007) 17.0±0.2 (0.614±.007) 17.5±0.2 (0.632±.007) 17.6±0.2 (0.636±.007)
    Thermal conduct. W/m-°K (Btu/ft-hr-°F) ≥70

    (≥40.5)

    ≥95

    (≥55)

    ≥75

    (≥43.4)

    ≥80

    (≥46.3)

    CTE:

    20 -100°C

    µm/m-°K (µin/in-°F) 6.1 (3.39) 6.0 (3.33) 5.5 (3.06) 5.5 (3.06)
    CTE:

    20-300°C

    µm/m-°K (µin/in-°F) 6.2 (3.44) 6.2 (3.44) 5.7 (3.17) 5.8 (3.22)
    CTE:

    20-450°C

    µm/m-°K (µin/in-°F) 6.3 (3.50) 6.4 (3.56) 5.8 (3.22) 5.9 (3.28)
    Electrical Conduct. %IACS 11 14 12 12
    Electrical

    Resist.

    µW × m 0.15-0.17 0.12-0.13 0.14-0.16 0.14-0.16
  • Physical Properties

    Density gr/cm3(lbs/in3) 18.0±0.2 (0.650±.007) 18.0±0.2 (0.650±.007) 18.0±0.2 (0.668±.007)
    Thermal conduct. W/m-°K (Btu/ft-hr-°F) ≥85

    (≥49.2)

    ≥105

    (≥60.7)

    ≥80

    (≥46.3)

    CTE:

    20 -100°C

    µm/m-°K (µin/in-°F) 4.9 (2.72) 5.4 (3.00) 5.1 (2.83)
    CTE:

    20-300°C

    µm/m-°K (µin/in-°F) 5.1 (2.83) 5.5 (3.06) 5.1 (2.83)
    CTE:

    20-450°C

    µm/m-°K (µin/in-°F) 5.2 (2.89) 5.6 (3.11) 5.2 (2.89)
    Electrical Conduct. %IACS 15 16 16
    Electrical Resist. µW × m 0.11-0.13 0.10-0.12 0.10-0.12
  • Physical Properties

    Yield Strength MPa (KSI) 520-590

    (75.4-85.6)

    520-550

    (75.4-79.8)

    520-620

    (75.4-89.9)

    520-620

    (75.4-89.9)

    Tensile Strength MPa (KSI) 760-860

    (110—125)

    650-760

    (94.3-110)

    760-900

    (110-131)

    760-850

    (110-123)

    Elongation % 8-17 1-4 10-17 10-17
    Hardness HV 10 285-330 270-310 305-330 295-335
    Elastic Modulus GPa (106xPSI) 310-360

    (45-52.2)

    280-340

    (40.6-49.3)

    320-370

    (46.4-53.7)

    320-370

    (46.4-53.7)

  • Physical Properties

    Yield Strength MPa (KSI) 560-670

    (81.2-97.2)

    520-600

    (75.4-87.0)

    520-600

    (75.4-87.0)

    520-660

    (75.4-95.7)

    Tensile Strength MPa (KSI) 740-820

    (107-119)

    750-850

    (109-123)

    650-730

    (94.3-106)

    690-830

    (100-120)

    Elongation % 1-2 6-12 1-3 2-6
    Hardness HV 10 405-430 305-340 305-340 315-340
    Elastic Modulus GPa (106xPSI) 380-440

    (55.1-63.8)

    330-370

    (47.9-53.7)

    310-410

    (45.0-59.5)

    340-440

    (49.3-63.8)

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