High speed steel arbor H08K-STUPR09 H16Q-STFPR11 Internal hole Turning Tool

High-Speed Steel (STUPR/STFPR) is a high-alloy tool steel known for its excellent red hardness, wear resistance, and high hardness, making it suitable for high-speed cutting tools (e.g., drill bits, milling cutters). Its composition typically includes tungsten (W), molybdenum (Mo), chromium (Cr), and vanadium (V), which enable it to retain cutting performance even at elevated temperatures after heat treatment.

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Product Description

High-Speed Steel (STUPR/STFPR) is a high-performance tool steel widely used in industry, particularly for manufacturing cutting tools that must endure high speeds and elevated temperatures. Its unique alloy composition (e.g., tungsten, molybdenum) provides exceptional red hardness, allowing it to maintain high hardness even above 600°C. Additionally, its wear resistance and toughness make it an ideal material for tools such as drill bits, taps, saw blades, and milling cutters. The STUPR/STFPR series of HSS is typically subjected to quenching and tempering to optimize its mechanical properties, making it suitable for heavy-duty machining and precision manufacturing applications.

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