TUNGSTEN HEAVY ALLOY (WHA)
Tungsten heavy alloy is a type of tungsten-based alloy that contains small amounts of nickel, iron, copper, cobalt, molybdenum, chromium, and other elements. Its density is as high as 165-19.0g/cm3.
Tungsten alloy is known for its high density, strength, hardness, and good ductility, as well as its excellent electrical and thermal conductivity. It is widely used in aerospace, medical equipment, electronics, mechanical engineering, and other fields.
Our Advantages, Experience
YATECH MATERIALS produces tungsten heavy alloys (WHA) in various densities and shapes, including blocks, rods, and custom-shaped parts made to order from drawings.
Our fabrication and machining capabilities enable us to provide you with tungsten heavy alloys that meet your specific density and tolerance requirements.
Our advanced and stable pressing and sintering processes enable us to produce high-quality Tungsten Heavy Alloys (WHA) in various sizes from stock.
We offer WHA Tungsten Heavy Alloys in both ‘Sintered Blank’ and ‘Precision Machined’ shipment standards, which can enhance efficiency and reduce costs for you.
Low Magnetism (LOW MAG) vs. Non-Magnetic (NON MAG) How do I choose between Tungsten Heavy Alloy (WHA)?
If you are using Tungsten Heavy Alloy (WHA), you may be confused about the LOW MAG vs. Non-Magnetic options. These are “magnetic” and “non-magnetic”, but we will refer to them as low magnetic and non-magnetic.
Low Magnetic vs. Non-Magnetic: Which is Best for Your Application?
To determine whether Low Magnetic WHA vs. Non-Magnetic WHA is right for your application, please refer to the case studies. If the existing magnetic field in the radiation generating equipment is undisturbed, then a non-magnetic WHA may be ideal. In addition, nonmagnetic WHA is often used in downhole probes/instruments where the programming chip and/or sensors are shielded. The most obvious case for non-magnetic WHA is magnetometer scanning as the primary application.
What is Non-MAG WHA?
Non-magnetic conventional WHA has a tungsten-nickel-copper composition. Unless the desired application requires non-magnetic properties, magnetic WHA is the ideal solution. Magnetic WHA is often the standard choice.
Mechanical Properties of Tungsten Alloy Grades
| W-Ni-Fe | ||||||
| Grade | Density (g/cm3) | HRA | TRS | Yield Strength | Elongation | Material Features and Recommended Applications |
| YH221 | 18.25-18.85 | 28 - 35 | >800MPa | >650MPa | >5% | Magnetic, high density, excellent corrosion resistance, mainly used as counterweight parts of various kinds of large equipment. |
| YH232 | 17.75-18.35 | 27 - 34 | >850MPa | >500MPa | >6% | Magnetic, superior rays absorption ability and the machining performance, commonly used for shielding and defense materials of various kinds of rays. |
| YH243 | 17.15-17.85 | 26 - 33 | >900MPa | >550MPa | >13% | Magnetic, with good thermal conductivity and low hot line expansion coefficient, commonly used for metal cutting tools as the boring cutter bars or high precision parts, etc. |
| YH273 | 16.85-17.25 | 24 - 32 | >850MPa | >500MPa | >10% | Magnetic, has high tensile strength and modulus of elasticity, commonly used for all kinds of high precision parts. |
| W-Ni-Cu | ||||||
| Grade | Density(g/cm3) | HRA | TRS | Yield Strength | Elongation | Material Features and Recommended Applications |
| YH132 | 17.75-18.35 | 27 - 34 | >800MPa | >600MPa | >10% | With high density, nonmagnetic, good mechanical performance, can be used as balance weight on the bar for oil drilling rig, the well perforation warhead, tool drag hammers, etc. |
| YH164 | 16.85-17.25 | 24 - 32 | >650MPa | >500MPa | >2% | Non-magnetic, superior rays absorption ability and the machining performance, commonly used for shielding and defense materials of various kinds of rays. |
