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    Uddeholm QRO 90 HT

    ESPECIALLY PRODUCED FOR CORE PINS IN DIE CASTING DIES

    Uddeholm QRO 90 Supreme is a hot rolled, premachined and prehardened QRO 90 Supreme material.

    • Very good temper resistance
    • Very high elevated temperature strength
    • High thermal conductivity

    Uddeholm QRO 90 HT

    • Hot wear resistance 55%
    • Plastic deformation resistance 60%
    • Heat checking resistance 80%
    • Premature cracking resistance 35%

    Reference Grade Hot Work (H13)

    • Hot wear resistance 40%
    • Plastic deformation resistance 40%
    • Heat checking resistance 40%
    • Premature cracking resistance 35%
    Chemical composition
    Carbon 0.38 Silicon 0.30 Manganese 0.80
    Chromium 2.60 Molybdenum 2.30 Vanadium 0.90
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