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What is Composition of Ultra-high-carbon Steel – Damascus Steel – Definition

Ultra-high carbon steels (i.e., steels containing between 1 and 2.0% C and now known as UHCS). For example, both Damascus and Japanese sword steels are hypereutectoid steels. Composition of Ultra-high-carbon Steel – Damascus Steel
damascus steel
Damascus and Japanese sword steels are hypereutectoid steels. The room temperature mechanical properties of the ultra-high-carbon steels exhibited a yield strength of 900 MPa and an ultimate strength of 1100 MPa.

Ultra-high-carbon steel has approximately 1.25–2.0% carbon content. Steels that can be tempered to great hardness. This grade of steel could be used for hard steel products, such as truck springs, metal cutting tools and other special purposes like (non-industrial-purpose) knives, axles or punches. Most steels with more than 2.5% carbon content are made using powder metallurgy.

Ultra-high carbon steels (i.e., steels containing between 1 and 2.0% C and now known as UHCS) have extreme strength, sharpness and resilience. The early use of steel compositions containing carbon contents above the eutectoid level is found in ancient weapons from around the world. For example, both Damascus and Japanese sword steels are hypereutectoid steels. The room temperature mechanical properties of the ultra-high-carbon steels exhibited a yield strength of 900 MPa and an ultimate strength of 1100 MPa. This is a remarkable combination of strength and ductility and confirms the general statements made about the malleability of ancient Damascus steels.

Damascus steel

References:
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U.S. Department of Energy, Material Science. DOE Fundamentals Handbook, Volume 1 and 2. January 1993.
U.S. Department of Energy, Material Science. DOE Fundamentals Handbook, Volume 2 and 2. January 1993.
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See above:
Damascus Steel

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