High carbon steel series
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T10 steel is a type of carbon tool steel with a carbon mass fraction of 0.95% to 1.04%. It is supplied in annealed state and has a hardness of ≤ 197HBW.
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T9 is a high carbon tool steel, belonging to ordinary manganese non alloy steel with a carbon content of 0.90%, corresponding to international standards including Japanese JIS SK4, American AISI/SAE W1A-8 1/2, etc.
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T8 steel is a type of eutectoid carbon tool steel with high hardness and wear resistance after quenching and tempering, but it has characteristics such as low thermal hardness, poor hardenability, and easy deformation due to overheating during processing.
Key words:
This material has moderate hardness (up to 48-54HRC after quenching) and high toughness, but low thermal hardness and poor hardenability.
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