Tungsten Heavy Alloys: WNiFe, WNiCo, WNiCu

Tungsten Heavy Alloy (WNiFe, WNiCu, WNiCo)

Tungsten heavy alloy is mainly made up of tungsten, with a tungsten content ranging from 85% to 97%. It is strengthened by adding materials like Ni, Fe, Cu, Co, Mo, and Cr. This alloy has a density between 16.8 and 18.8 g/cm³

At AEM, we have two series of products: WNiFe, WNiCo (magnetic), and WNiCu (non-magnetic). We manufacture large tungsten heavy alloy parts using CIP, while small parts are made through mold pressing, extruding, or MIN. We also offer a wide range of high-strength plates, bars, and shafts produced by forging, rolling, or hot extruding.

We can create different shapes based on customer drawings, provide design technology processes, and develop various products. Additionally, we offer post-machining services to meet our customers' needs.

Properties of Tungsten Heavy Alloy (WNiFe, WNiCu, WNiCo)

AEM Alloy	AEM-17C	AEM-17F	AEM-175	AEM-18C	AEM-18F	AEM-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/scmK	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

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Tungsten Heavy Alloy Products list

Tungsten Heavy Alloy Rods

Diameter: Ф3.0 - 100.0 mm
Length: 50 - 1000 mm
Density: 15.8 - 18.75 g/cm3
Composition: W content: 85-99%, WNiFe, WNiCu
Applications: Used for the counterweight, radiation shieldings, military industry, dart rod, welding rod, and mold.

Tungsten Heavy Alloy Slugs

Applications:
Used for automobile, vehicle weight balance, oil drilling machine counterweight, helicopter weight, ship weight, and tank counterweight.

Tungsten Heavy Alloy Bars

Width x length: (2.0 - 100.0 mm) x (2.0 x 100.0 mm)
Height: 50 - 1000 mm
Density: 15.8 - 18.75 g/cm³
Applications: Used as a counterweight on aircraft surfaces control, propeller, navigation station, the engine, and engine crankshaft.

Tungsten Heavy Alloy Blocks

Length: 810 mm (max)
Width: 400 mm (max)
Applications: 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 Heavy Alloy Plates

Applications: 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 Heavy Alloy Balls

Diameter: 2 - 160 mm
Applications: 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 Heavy Alloy Discs

Applications: Used as a counterweight, radiation shielding, military, and other fields.

Tungsten Heavy Alloy Rings

Applications: Used as counterweight in various fields.

Tungsten Heavy Alloy Pipes

Outer diameter: 6 - 150 mm
Inner diameter: 3 - 120 mm
Length: 20 - 600 mm
Applications: Best material for radiation shielding, which can also be used for clock pendulum, automatic watch balances, shockproof knife tools, flywheel weight, etc.

Tungsten Heavy Alloy Sheets

Applications: Widely used in radiation shielding materials, as well as packing materials and cables.

Low Tungsten Alloy

Low tungsten alloy refers to that the tungsten content is less than 90%. Primarily used in special industries as a counterweight. We produce various low-density tungsten alloy products based on customer requirements.

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Tungsten Alloy Shielding Parts

Tungsten alloy shielding parts are the first choice for 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, shields for radiotherapy, and springe shields.

Tungsten Alloy CT Shielding

Applications: Mainly used in medical areas, PET shielding injection, tungsten alloy protective pot, deoxyribose (FDG) container, and the camera detector.

Tungsten Alloy Shielding Sheets

Applications: Used in shielding walls, floor shielding materials, shielding windows for spacecraft, shielding blanket, and shielding cover of radioactive nuclear waste.

Tungsten Alloy Collimator

Applications: Used in X-ray target firmware, rotator, fixed anode, cathode element, and detector element.

Tungsten Alloy X Ray Target

Applications: Used as linear accelerators and cyclotrons in the medical field.

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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: 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 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 Counterweight for Oil Drilling

Applications: Widely used in oil drilling, which is drill bits, and counterweight made for professional drilling engineering.

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 Balls for Counterweight

Applications: 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 hardness

High melting point

High ultimate tensile strength

Good machining properties

Easy cutting

Good mechanical properties

High elastic modulus

Small volume

Strong corrosion resistance

Non-poisonous, no pollution

It can effectively absorb X-rays, and gamma rays (the absorption of X-rays and Y rays is 30-40% higher than lead)

Tungsten Heavy Alloy V.S. Lead

	Tungsten Heavy Alloy	Lead
Density	15 g/cm³ to 18.5 g/cm³	11.34 g/cm³
Mechanical Properties	THAs exhibit superior mechanical properties, including high strength, hardness, and wear resistance, making them suitable for demanding applications.	Lead is relatively soft and malleable, making it easy to deform and shape.
Toxicity	THAs are non-toxic and environmentally friendly, posing no health risks to humans or the environment.	Lead is a toxic metal and poses health risks if ingested or inhaled. Exposure to lead can lead to serious health issues, including neurological and developmental problems.
Environmental Impact	THAs are considered environmentally friendly materials. They are inert and do not leach harmful substances into the environment. Additionally, THAs are recyclable, contributing to sustainability efforts.	Lead is a hazardous material and requires careful handling and disposal to prevent environmental contamination. Its use is restricted or regulated in many applications due to its toxicity.
Radiation Shielding	THAs are also used for radiation shielding and offer advantages over lead, such as higher density, better mechanical properties, and non-toxicity.	Lead is commonly used for radiation shielding due to its high density and effectiveness in attenuating gamma rays and X-rays.
Applications	THAs are used in aerospace, defense, medical, automotive, and nuclear industries for applications such as counterweights, balance weights, kinetic energy penetrators, and radiation shielding.	Lead is used in a wide range of applications, including batteries, soldering, radiation shielding, and construction.

While lead has been traditionally used for its density and radiation shielding properties, Tungsten Heavy Alloys offer a superior alternative in many applications. THAs provide higher density, better mechanical properties, and environmental safety, making them the preferred choice for demanding applications where high density and radiation shielding are required without compromising safety or performance. Additionally, the recyclability of THAs contributes to sustainable material management practices.

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FAQs About Tungsten Heavy Alloys

What are Tungsten Heavy Alloys (THAs)?

Tungsten Heavy Alloys (THAs) are composite materials composed primarily of tungsten (W), combined with other metals such as nickel (Ni) and iron (Fe), with varying percentages. They are known for their high density and excellent mechanical properties.
What are the key properties of Tungsten Heavy Alloys?

THAs exhibit high density, excellent strength, good machinability, and superior radiation shielding properties. They are also non-toxic and environmentally friendly materials.
How are Tungsten Heavy Alloys manufactured?

The manufacturing process typically involves mixing tungsten powder with powdered binders such as nickel, iron, or cobalt, compacting the mixture into a desired shape using high-pressure techniques, and sintering the compacted parts at high temperatures to achieve density and strength.
What advantages do Tungsten Heavy Alloys offer over other materials?

THAs offer higher density compared to lead and other traditional materials, making them ideal for applications where compact, high-density components are required. They also have better mechanical properties and are non-toxic, making them suitable for use in environmentally sensitive applications.
Can Tungsten Heavy Alloys be machined?

Yes, THAs can be machined using conventional machining techniques such as turning, milling, drilling, and grinding. However, due to their high density and hardness, specialized tools and cutting parameters may be required.
How to purchase tungsten rods from AEM Metal?

Just send us inquiries, our team will prepare an official quote for you. If you are satisfied with our products and quotes, you can send us PO or we will send you PI for purchasing.
What are the common applications of Tungsten Heavy Alloys?

THAs are widely used in aerospace, defense, automotive, medical, and nuclear industries. Common applications include counterweights, balance weights, kinetic energy penetrators, radiation shielding, and vibration damping components.
Are Tungsten Heavy Alloys safe for use in medical applications?

Yes, THAs are safe for use in medical applications such as radiation shielding and collimators. They are non-toxic and provide effective protection against ionizing radiation, making them suitable for use in diagnostic and therapeutic procedures.
How do I select the right Tungsten Heavy Alloy for my application?

The selection of the right THA depends on factors such as required density, mechanical properties, and environmental conditions. Consulting with material experts and considering specific application requirements will help determine the most suitable alloy composition.
What are the environmental considerations when using Tungsten Heavy Alloys?

THAs are environmentally friendly materials that do not pose risks to human health or the environment. However, proper handling, disposal, and recycling practices should be followed to minimize environmental impact.
What are the shipping methods?

We use UPS or DHL or FedEx express for most of countries. Please let us know if you have their account number. We can ship the items out by using your account number. We use IPS express for Iran, Iraq and UAE. We will by sea or air if the weight or volume is large.
What are the payment methods?

Bank Wire Transfer: Direct bank transfers are a secure and widely used method. Details for wire transfers will be provided on the invoice.

PayPal: For added flexibility, PayPal payments are often accepted. This option is ideal for those who prefer online payment gateways.

Letter of Credit (L/C): In certain cases, we may accept payment through a letter of credit, offering a secure method for international transactions.

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Tungsten Heavy Alloy (WNiFe, WNiCu, WNiCo)

Tungsten Heavy Alloy (WNiFe, WNiCu, WNiCo)

Properties of Tungsten Heavy Alloy (WNiFe, WNiCu, WNiCo)

Tungsten Heavy Alloy Products list

Tungsten Heavy Alloy Rods

Tungsten Heavy Alloy Slugs

Tungsten Heavy Alloy Bars

Tungsten Heavy Alloy Blocks

Tungsten Heavy Alloy Plates

Tungsten Heavy Alloy Balls

Tungsten Heavy Alloy Discs

Tungsten Heavy Alloy Rings

Tungsten Heavy Alloy Pipes

Tungsten Heavy Alloy Sheets

Low Tungsten Alloy

Tungsten Alloy Shielding Parts

Tungsten Alloy CT Shielding

Tungsten Alloy Shielding Sheets

Tungsten Alloy Collimator

Tungsten Alloy X Ray Target

Tungsten Alloy Counterweight

Tungsten Alloy Aircraft Counterweight

Tungsten Alloy Gyro Rotor

Tungsten Alloy Counterweight for Oil Drilling

Tungsten Alloy Counterweight for Aviation

Tungsten Alloy Balls for Counterweight

Advantages of Tungsten Heavy Alloy (WNiFe, WNiCu, WNiCo)

Tungsten Heavy Alloy V.S. Lead

FAQs About Tungsten Heavy Alloys

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