Tungsten Heavy Alloy (WNiFe, WNiCu, WNiCo)
Tungsten heavy alloy is major with Tungsten content 85%-97% and adds with Ni, Fe, Cu, Co, Mo, Cr materials. The density is between 16.8-18.8 g/cm³. Our products are mainly divided into two series: W-Ni-Fe, W-Ni-Co (magnetic), and W-Ni-Cu (non-magnetic). We produces various big-size Tungsten heavy alloy parts by CIP, various small parts by mold pressing, extruding, or MIN, various high-strength plates, bars, and shafts by forging, rolling, or hot extruding. According to the customers’ drawing, we can also produce various shapes, design technology processes, develop various products, and later machine.
Applications of Tungsten Heavy Alloy (WNiFe, WNiCu, WNiCo)
• Military equipment
• Balance weight for submarine and vehicle
• Aircraft components
• Nuclear and medical shields (military shield)
• Fishing and sport tackles
Properties of Tungsten Heavy Alloy (WNiFe, WNiCu, WNiCo)
Tungsten Heavy Alloy
|
17C |
17F |
175 |
18C |
18F |
185 |
ASTM B777; AMS-
T-21014 Class |
Class 1 |
Class 1 |
Class 2 |
Class 3 |
Class 3 |
Class 4 |
|
Material |
90WNiCu |
90WNiFe |
92.5WNiFe |
95WNiCu |
95WNiFe |
97WNiFe |
|
90% W |
90% W |
92.5% W |
95% W |
95% W |
97% W |
|
6% Ni |
7% Ni |
5.25% Ni |
3.5% Ni |
3.5% Ni |
2.1% Ni |
|
4% Cu |
3% Fe |
2.25% Fe |
1.5% Cu |
1.5% Fe |
0.9% Fe |
|
Density, grams/cubic centimeter |
17 gm/cc |
17 gm/cc |
17.5 gm/cc |
18 gm/cc |
18 gm/cc |
18.5 gm/cc |
|
Density; lbs/in3 |
0.614 |
0.614 |
0.632 |
0.65 |
0.65 |
0.668 |
|
Mil. Spec. T-21014 D |
Class 1 |
Class 1 |
Class 2 |
Class 3 |
Class 3 |
Class 4 |
|
ASTM-B777 |
Grade 1 |
Grade 1 |
Grade 2 |
Grade 3 |
Grade 3 |
Grade 4 |
|
Type |
Type II & III |
Type II & III |
Type II & III |
Type II & III |
Type II & III |
Type II & III |
|
AMS 7725C |
Type 1 |
Type 2 |
|
|
|
|
|
Hardness; Rockwell C |
24 (32 max) |
25 (32 max) |
26 (33 max) |
27 (34 max) |
27 (34 max) |
28 (35 max) |
|
Ultimate Tensile Strength; PSI, min. |
94,000 |
110,000 |
110,000 |
94,000 |
105,000 |
100,000 |
|
Yield Strength, .2% Offset; PSI, min. |
75,000 |
75,000 |
75,000 |
75,000 |
75,000 |
75,000 |
|
Elongation, % in 1” |
>2 |
>5 |
>5 |
>2 |
>3 |
>2 |
|
Proportional Elastic Limit; PSI |
45,000 |
52,000 |
46,000 |
45,000 |
44,000 |
45,000 |
|
Modulus of Elasticity; PSI |
40 x 10^6 |
45 x 10^6 |
47 x 10^6 |
45 x 10^6 |
50 x 10^6 |
53 x 10^6 |
|
Coefficient of Thermal Expansion x 10E-6/°C (20°- 400°C) |
5.4 |
4.8 |
4.6 |
4.4 |
4.6 |
4.5 |
|
Thermal Conductivity; cal/s*cm*K |
0.23 |
0.18 |
0.2 |
0.33 |
0.26 |
0.3 |
Electrical Conductivity;
%IACS |
14 |
10 |
13 |
16 |
13 |
17 |
|
Magnetic Properties |
NIL |
Slightly Magnetic |
Slightly Magnetic |
NIL |
Slightly Magnetic |
Slightly Magnetic |
Tungsten Heavy Alloy Products list
Our high-density tungsten alloy products are mainly divided into two series: WNiFe (magnetic) and WNiCu (non-magnetic). According to customers’ drawings, we produce various shapes, design technology processes, develop various products, and later machines.
Tungsten Alloy Rods
Diameter: Ф3.0-100.0mm
Length: 50-1000mm
Density: 15.8-18.75 g/cm3
Composition: W content: 85-99%, WNiFe, WNiCu
Applications: They are used for the counterweight, radiation shieldings, military industry, dart rod, welding rod, and mold.
Tungsten Alloy Slugs
Applications:
They are used for automobile, vehicle weight balance, oil drilling machine counterweight, helicopter weight, ship weight, and tank counterweight.
Tungsten Alloy Bars
Width x length: (2.0-100.0mm) x (2.0x100.0mm)
Height: 50-1000mm
Density: 15.8-18.75g/cm3
Applications:
They are used as a counterweight on aircraft surfaces control, propeller, navigation station, the engine, and engine crankshaft.
Tungsten Alloy Blocks
Applications:
They can be made into weapon parts, molds, and counterweights, also widely used in the medical field, such as shielding walls and shielding blocks on the CT device.
Tungsten Alloy Plates
Applications:
They can be used as counterweights in various fields, such as the mechanical hammer, flyweight, oil drilling platform counterweight, and shockproof tool holder. They can also be used for the X-ray target, collimator, nuclear fuel container, and needle shielding.
Tungsten Alloy Balls
Applications:
They can be used as golf counterweight, fishing pendants, military shots, shotgun cartridges, prefabricated fragments etc. They can also be used in some other top precision fields, such as mobile phone vibrators, the pendulum for the clock, automatic watch balance, shockproof knife tools, and flywheel weight.
Tungsten Alloy Diss
Applications:
They can be used as a counterweight, radiation shielding, military, and other fields.
Tungsten Alloy Rings
Applications:
They can be used as counterweight in various fields.
Tungsten Alloy Pipes
Applications:
They are the best material for radiation shielding, which can also be used for the pendulum for the clock and automatic watch balances, shockproof knife tools, flywheel weight etc.
Tungsten Alloy Sheets
Applications:
They are widely used in radiation shielding material, as well as packing material and cable.
Low Tungsten Alloy
Low tungsten alloy refers to that the tungsten content is less than 90%, which are mainly used in special industries as a counterweight. We produce various low-density tungsten alloy products according to customers’ requirements.
Tungsten Alloy Shielding Parts
Tungsten alloy shielding parts are the first choice of radiation shielding. It can be used in the medical field and industrial field. Compared with the traditional shielding materials (such as lead), the tungsten alloy's shielding function is much better than others. Due to its high-density, the volume of tungsten alloy is 1/3 smaller than lead, but the shielding function is equivalent. These are also used as collimators, and shields for radiotherapy, and springe shields.
Tungsten Alloy CT Shielding
Applications:
These are mainly used in medical areas, PET shielding injection, tungsten alloy protective pot, deoxyribose (FDG) container, the camera detector, and technetium generator.
Tungsten Alloy Shielding Sheets
Applications:
These are used in shielding walls, floor shielding materials, shielding windows for spacecraft, shielding blanket, and shielding cover of radioactive nuclear waste.
Tungsten Alloy X Ray Target
Applications:
These are used in X-ray target firmware, rotator, fixed anode, cathode element, and detector element.
Tungsten Alloy Collimator
Applications:
These can be used as linear accelerators and cyclotrons in the medical field.
Tungsten Alloy Counterweight
Tungsten alloy counterweight has many advantages like high-density, high melting point, high hardness, strong corrosion-resistance, high ultimate tensile strength, high elongation, easy cutting, non-poisonous, no pollution, good impact resistance, and crack resistance. These are widely used in various fields.
Tungsten Alloy Aircraft Counterweight
Applications:
These are used as a failure of security devices to prevent the propeller speed too fast on the propeller control system. The rivet rod and crankshaft balance pieces can also be used on the satellite, and the aircraft counterweight helps satellite gravity set precise positioning and ensures its correct flight track.
Tungsten Alloy Counterweight for Aviation
The counterweight can be used in satellite, the helicopter rotor, missile, and aviation electronic equipment on the gyroscope.
Tungsten Alloy Counterweight for Oil Drilling
Applications:
These are widely used in oil drilling, which is drill bits, and counterweight made for professional drilling engineering.
Tungsten Alloy Gyro Rotor
Tungsten alloy gyro rotor is a key part of the aircraft heading gyroscopes. Its structure mainly includes the azimuth gyro, gyroscope rotor, the outer shaft (azimuth shaft) that supports the vertical through a bearing in the instrument shell.
Tungsten Alloy Balls for Counterweight
Applications:
These are used for variable pitch propellers of the pitch control system on the aircraft as the failure of security devices to prevent the propeller speed much too fast.
Advantages of Tungsten Heavy Alloy (WNiFe, WNiCu, WNiCo)
• High density
• High melting point
• Good machining properties
• Good mechanical properties
• Small volume
• High hardness
• High ultimate tensile strength
• Easy cutting
• High elastic modulus
• It can effectively absorb X-rays, and gamma rays (the absorption of X-rays and Y rays is 30-40% higher than lead)
• Non-poisonous, no pollution
• Strong corrosion resistance
