KNT8418SUP

  • KNT8418SUP
  • （reference to the standard 8418、DAC55）
  • factory status：
  • Tempering in to 229HB ,heat treatment up to 52-55HRC
  • element(%)：(just for reference) 

C carbonium

Si silicon

Mn manganese

Cr chromium

Mo molybdenum

V vanadium

tombarthite

0.38

1.1

0.3-0.4

5.1

1.9-2.5

0.8

appropriate amount
  • charactaristic： 
  • 1. After refining furnace and electroslag remelting for KNT8418SUP steel material, then adding special resistant high temperature alloy steel matrix.The impurity substance of the steel S is less than 0.003%, P is less than 0.015%, technical standards higher than the North American Die Casting Association (NADCA) and the German DIN standard,
  • 2. Resistance to sudden changes of temperature and thermal stress fatigue
  • 3. when it is in the high temperature ,it remains still high strength
  • 4. tenacityToughness and good ductility
  • 5. Good cutting and polishing performance
  • 6. Good hardenability
  • main application： 
  • 1. Aluminum, magnesium, zinc alloy die-casting mold, 5-8 ten thousand times the service life for aluminum alloy mold . more than 200000 times using life for zinc alloy mold , We suggest to use such hot work die steel .Please refer to our comopany guidance for quenching and tempering.
  • 2. aluminum profile extruding die 
  • heat treatment： 
  • quenching：1020-1050℃(Oil cooling or air cooling) 
  • tempering：180-650℃，to avoid the appearance for the tempering fragility
  • Technology consultation of CCT and tempering curve map, please send mail toSales@kenatal.com