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Tungsten Heavy Alloy Rod

Short Description:

Tungsten heavy alloy rod usually used for making rotors of dynamic inertial materials, the stabilizers of aircraft wings, shielding materials for radioactive materials etc.


Product Detail

Product Tags

Specifications

Tungsten Heavy Alloy Grade:
W90NiFe/W92.5NiFe/W93NiFe/W95NiFe/W97NiFe (Slightly Magnetic).
W90NiCu/W92.5NiCu/W93NiCu/W95NiCu/W97NiCu (Nonmagnetic).

Density: 16.8-18.8g/cm3.
Surface: Machined & Ground.
Standard: ASTM B777.

Diameter: 5.0mm – 80mm.
Length: 50mm – 350mm.

Tungsten Alloy Rod (2)

Tungsten High Density Alloy Advantages

High density (up to 65% denser than Lead).

Denser materials exist (pure Tungsten, Gold, platinum group metals) but their use is restricted by availability, workability and cost.

Providing mass where volume space is limited.

Concentrated weight essential where accuracy is required in placement of mass.

Placement of weight in situations where airflow has a significant impact.

Thermal Properties of Tungsten Heavy Alloys

High softening temperature.

Low thermal conductivity and low coefficient of expansion gives the material a high resistance to thermal fatigue.

Excellent soldering erosion resistance to molten aluminum. Strong at high temperatures with high thermal stability.

tungsten alloy rod-1
heavy alloy rod-2
Tungsten Alloy Rod (1)

Tungsten High Density Alloy Mechanical Properties

● High Young's modulus of elasticity. Does not creep when experiencing significant forces, unlike Lead.

● Despite their strength, they remain ductile and resistant to cracking.

● The hardness range of the alloys is typically 20-35 Hardness HRC.

High-Density Tungsten Based Alloy

Alloy Type(%) HD17 90W 6Ni 4Cu HD17D 90W 7Ni 3Fe HD17.5 92.5W 5.25Ni 2.25Fe HD17.6 92.5W Balance Ni, Fe, Mo HD17.7 93W Balance Ni, Fe, Mo HD18 95W 3.5Ni 1.5Cu HD18D 95W 3.5Ni 1.5Fe HD18.5 97W 2.1Ni .9Fe
MIL-T-21014 Class 1 Class 1 Class 1 - - Class 3 Class 3 Class 4
SAE-AMS-T-21014 Class 1 Class 1 Class 2 - - Class 3 Class 3 Class 4
AMS 7725 C 7725 C 7725 C -- -- -- -- -- --
ASTM B777-87 Class 1 Class 1 Class 2 - - Class 3 Class 3 Class 4
Typical Density (g/cc) 17.1 17.1 17.5 17.6 17.7 18 18 18.5
Typical Density (lbs/in3) 0.614 0.614 0.632 0.636 0.639 0.65 0.65 0.668
Typical Hardness RC 24 25 26 30 32 27 27 28
Ultimate Tensile Strength Min (ksi) 110,000 120,000 114,000 120,000 125,000 110,000 120,000 123,000
0.2% Offset Yield Strength Min (ksi) 80,000 88,000 84,000 90,000 95,000 85,000 90,000 85,000
Minimum % Elongation (1" gage length) 6 10 7 4 4 7 7 5
Proportional Elastic Limit (PSI) 45,000 52,000 46,000 55,000 60,000 45,000 44,000 45,000
Modulus of Elasticity (x106psi) 40 x 106 45 x 106 47 x 106 52 x 106 53 x 106 45 x 106 50 x 106 53 x 106
Coefficient of Thermal Expansion x10-6/0C (20-400C) 5.4 4.61 4.62 4.5 4.5 4.43 4.6 4.5
Thermal Conductivity (CGS Units) 0.23 0.18 0.2 0.27 0.27 0.33 0.26 0.3
Electrical Conductivity (% IACS) 14 10 13 14 14 16 13 17
Magnetic No Slightly Slightly Slightly Slightly No Slightly Slightly

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