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WNiFe Tungsten Heavy Alloy Tungsten Nickle Iron Alloy For Aircraft / Vehicles

Categories Tungsten Heavy Alloy
Brand Name: FOTMA
Model Number: WNiFe
Certification: ISO9001:2008
Place of Origin: P.R. China
MOQ: 1 pcs
Price: Negotiable
Payment Terms: T/T, L/C, Western Union, PayPal
Supply Ability: 10000pcs/month
Delivery Time: 20-25 days after deposit
Packaging Details: Paper cartons or plywood boxes
W Content: 88 - 98%
Others: Nickle & Iron
Sizes: Customized
Surface: Machined, Polished
Density: > 17 g/cm3
Tolerance: +/- 0.1mm
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WNiFe Tungsten Heavy Alloy Tungsten Nickle Iron Alloy For Aircraft / Vehicles

WNiFe Tungsten Heavy Alloy Tungsten Nickle Iron Alloy For Aircraft / Vehicles


The majority of current uses for tungsten heavy alloys are best satisfied with the W-Ni-Fe system. Tungsten alloys such as 93W-4.9Ni-2.lFe and 95W-4Ni-lFe represent common compositions. The addition of cobalt to a W-Ni-Fe tungsten alloy is a common approach for slight enhancement of both strength and ductility. The presence of cobalt within the tungsten alloy provides solid-solution strengthening of the binder and slightly enhanced tungsten-matrix interfacial strength. Cobalt additions of 5 to 15% of the nominal binder weight fraction arc most common.

Tungsten Nickle Iron Alloy has density range from 17.0g/cm3 to 18.8g/cm3, which is the twice of steel, more than 1.5 times of lead. WNiFe alloy has low thermal expansion coefficient, high strength and high modulus of elasticity.

Tungsten Nickle Iron Alloy Main Application:


Tungsten alloy damping weights for computer disk drive heads
Balancing weights for ailerons in commercial aircraft, helicopter rotors, and for guided missiles made by tungsten alloy.
Kinetic energy penetrators for defeating heavy armor by tungsten alloy
Tungsten alloy Fragmentation warheads


Tungsten alloy Advantages:


-High density
-Excellent mechanical properties such as high vibration-damping capacity and high Young's modulus.
-Excellent radiation-shielding property
-High thermal conductivity with low thermal expansion coefficient
-Higher high-temperature strength and thermal shock resistance
-High oxidation resistance and corrosion resistance


Tungsten Nickle Iron Alloy Data Sheet:


Alloy Type
(%)

HD17D

90 W
7 Ni
3 Fe

HD17.5

92.5 W
5.25 Ni
2.25 Fe

HD17.6

92.5 W
Balance
Ni, Fe, Mo

HD17.7

93 W
Balance
Ni, Fe, Mo

HD18D

95 W
3.5 Ni
1.5 Fe

HD18.5

97 W
2.1 Ni
.9 Fe

MIL-T-21014

Class 1

Class 1

-

-

Class 3

Class 4

SAE-AMS-T-21014

Class 1

Class 2

-

-

Class 3

Class 4

AMS 7725 C

7725 C

--

--

--

--

--

ASTM B777-87

Class 1

Class 2

-

-

Class 3

Class 4

Typical Density
(g/cc)

17.1

17.5

17.6

17.7

18

18.5

Typical Density
(lbs/in3)

0.614

0.632

0.636

0.639

0.65

0.668

Typical Hardness RC

25

26

30

32

27

28

Ultimate Tensile Strength Min
(ksi)

120,000

114,000

120,000

125,000

120,000

123,000

0.2% Offset Yield Strength Min
(ksi)

88,000

84,000

90,000

95,000

90,000

85,000

Minimum % Elongation
(1" gage length)

10

7

4

4

7

5

Proportional Elastic Limit
(PSI)

52,000

46,000

55,000

60,000

44,000

45,000

Modulus of Elasticity
(x106psi)

45 x 106

47 x 106

52 x 106

53 x 106

50 x 106

53 x 106

Coefficient of Thermal Expansion x10-6/0C
(20-400C)

4.61

4.62

4.5

4.5

4.6

4.5

Thermal Conductivity
(CGS Units)

0.18

0.2

0.27

0.27

0.26

0.3

Electrical Conductivity
(% IACS)

10

13

14

14

13

17

Magnetic

Slightly

Slightly

Slightly

Slightly

Slightly

Slightly


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