P20 Tool Steel Heat Treatment
The purpose of this brochure is to provide a general idea of how tool steel is heat treated and how it behaves during this process.
P20 tool steel heat treatment. Through hardness can be improved with specialty p20 grades ask your tool steel supplier and or heat treater for recommendations. So you don t have any worry about distortion or cracking. Astm p20 steel is a good quality plastic tool steel p20 steel belong to the high quality medium carbon pre hardness 28 34hrc plastic mould steel. After being carburized these steels are heated to 816 871 c 1500 1600 f in order to be hardened and then held for 15.
Lss p20 mold steel astm p20 typical composition c mn si cr mo 0 33 0 80 0 65 1 75 0 40 lss p20 mold steel is a versatile low alloy tool steel that is characterized by good toughness at moderate strength levels. P20 tool steels have excellent machinability at about 80 that of water hardening steels. 1 2311 steel plate and round bars materials are forged at 1093 c 2000 f down to 899 c 1650 f. P20 tool steel 40crmnnimo8 6 4 p20 is a plastic mould steel that is usually supplied in a hardened and tempered condition.
P20 steel round bar sheet plate heat treatment stress relieving. To ol steels are high quality steels. Heat treatment of tool steel 4 uddeholm dievar soft annealed structure. What is tool steel.
Special attention is paid to hardness tough ness and dimensional stability. Exhibiting good machinability with better polishability compared to 1 2312 aisi p20 s. Forging below 871 c 1600 f is not recommended for these steels p20 material. The steel is commonly used for plastic injection mold cavities and tooling and for die casting dies for zinc.
It no need further heat treatment. Heat treatment temperatures including rate of heating cooling and soaking times will vary due to factors such as the shape and size of each p20 steel component. After machining and intermittently during service the steel must be thermally stress relieved by heating to 900ºf 482ºc equalizing and holding for one hour per inch 25 4mm of thickness and cooling in air to ambient temperature. P20 tool steel properties is very simliar with gb 3cr2mo ios 35crmo2 din 1 2311 steel.
Tool steels are furnished in the annealed condition which is the soft machineable and necessary condition for proper heat treat response. P20 tool steels are heated to 871 899 c 1600 1650 f in the carburizing medium during the carburizing process. Like most tool steel applications material selection is about tradeoffs between desired properties. Other considerations during the heat treatment process include the type of furnace quenching medium and work piece transfer facilities.
1 2311 tool steel forging.