Basic information about DIN 1.2367
1.2367 is a choromium -Molybdenum hot work steel that is similar to AISI H11 hot work steel, but which contains a higher molybdenum content, The higher molybdenum gives DIN 1.2367 better hot hardness and temper resistance,along with higher attainable hardness and deeper hardenability than the more common H11 and H13 hot work steels, Typical applications include extrustion tooling, hot forging dies, hot heading dies,hot shear blades,hot punches and mandrels,Hot grippers dies and die casting tooling for copper and brass
Form of DIN 1.2367 Otai supply
Round bar Diameter: 8mm-600mm (8mm,10mm,12mm,14mm,16mm,18mm,20mm,22mm,24mm,25mm,28mm,30mm,35mm,40mm,45mm,50mm,55mm,60mm,65mm,70mm,75mm,80mm,85mm,90mm,85mm,100mm,105mm,110mm,125mm,130mm,140mm- 600mm
Steel plate:2-250mm x 200-800mm
We have a Vertical Saw cutting machine, Horizontal saw cutting machine, Lathes, Bandsaw Machine for customised size. the tolerance of the cutting finished product would be guaranteed.
Reference pictures:
Chemical composition:
| C | Si | Mn | S | P | Cr | Mo | V |
| 0.35-0.4 | 0.3-0.5 | 0.3-0.5 | Max 0.03 | Max 0.03 | 4.8-5.2 | 2.7-3.2 | 0.4-0.6 |
Heat treating instructions
Critical temperatures
Ae1: 850℃
Ar1: 853℃
Hardening:
Preheating: To Minimize distortion in complex tools use a double preheat:621-677℃, equalize, then raise to 760-816℃ and equalize, for normal tools, use only the second temperature range as a single preheating treatment. Austenitizing(High Heat): heat rapidly from the preheat. Furnace or salt:1024-1080℃ for maximum toughness, use 1024-1038℃. For maximum hot hardness and heat checking resistance use 1066-1080℃
Quenching: Air, pressurized gas, warm oil or salt,
For Pressurized gas, a minimum quench rate of approximately 28℃, per minute to below 538℃ is required to obtain the optimu properties in the steel.
For oil, quench until black, about 482℃, then cool in still air to 66-51℃.
For salt maintained at 538-593℃, equalize in the salt, then cool in still air to 66-51℃,
Tempering: Temper immediately after quenching, Typical temperature range is 538-593℃, do not temper below 538℃, hold at temperature for 2 hours then air cool to ambient temperature, double tempering is required
Annealing: Annealing must be performed after hot working and before rehardening.
Heat at a rate not exceeding 222℃ per hour to 732-788℃, and hold at temperature for 1 hour per inch of maximum thickness,2 hours minimum, then cool slowly with the furnace at a rate not exceeding 28℃ per hour to 538℃. continue cooling to ambient temperature in the furnace or in air, the resultant hardness should be a maximum of 235HBW.
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