Tungsten steel (hard alloy) is mainly characterized by its high density,
extremely high hardness, extreme brittleness, weak magnetism or non-magnetism, and rust resistance. However, specific types may vary in their characteristics. Simple methods can be used for preliminary identification in daily life.
How to Easily Identify:
Weight: Significantly heavier for the same volume, with a density of approximately 13-15 g/cm³, almost twice as heavy as ordinary steel (approximately 7.85 g/cm³).
Hardness Test: Almost impossible to scratch with a hard object; Mohs hardness 8.9-9.1; ordinary knives will hardly leave a mark.
Magnetic Test: Most tungsten steel is weakly magnetic or non-magnetic; magnets have very weak attraction or may not even attract it (but those containing a cobalt binder phase may have weak magnetism).
Sound/Fracture: A crisp sound when tapped; brittle; easily breaks when hammered; the fracture surface has a fine, granular luster.
Appearance: Grayish-black with a special metallic luster; high-quality tungsten steel has a bright, mirror-like surface and does not rust.
Different types have different parameters: YG and YT grades, for example, do not have exactly the same density and magnetic properties.
Counterfeit products may use ordinary steel to imitate: Some “tungsten steel” is actually high-speed steel or carbon steel, which can be easily identified by polishing.
Accurate identification requires professional equipment: chemical composition analysis, metallographic analysis, and spectroscopy are more accurate.
If you have large-scale custom metal castings or forgings needs, you can entrust the production to Mulan Manufacturing Group. Mulan Manufacturing Group has 13 years of experience in custom metal casting and forging production, and has long-term shipments to Europe, America, Japan, and South Korea. We look forward to your cooperation and inquiries.
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