If you are interested in our P20 (1.2311) Mould Steel, please get in touch for more details.
This pre-hardened tool steel finds wide application in plastic moulding and diecasting operations and may be heat treated further for use in high strength engineering components. It is supplied pre-hardened to approximately 300 HB and in this condition is readily machined by all normal machining processes. The surface hardness may be considerably increased by nitriding, carburising or induction hardening.
Plastic Moulding Dies, Zinc Diecasting Dies, Bolsters.
Heat slowly to 760° /780° C, soak thoroughly and furnace cool. Pack or box annealing or use of a controlled atmosphere furnace will minimise scaling and decarburisation. The usual annealed hardness is up to 248 HB.
Heat to 650°/700° C. Hold for 2-4 hours and furnace cool.
Before heat treatment, sufficient machining should be carried out to remove surface decarburisation. Preheat thoroughly to 650°r,oo0c and then raise more rapidly to 830°/8S0° C in a controlled atmosphere furnace or, preferably, a neutral salt bath. Quench in oil.
Heat to 200° /650° C for a minimum of one hour. A hot air circulation furnace may be used.
507-535 HV (50-52 HRC) when tempered at 200/250°C
305-337 HV (30-34 HRC) when tempered at 600/650°C
Whether you need tool steels, conventional high-speed steels, or powder metallurgy grades, our friendly team is ready to help meet your requirements. We cut and supply steel products for our customers, across the UK and Ireland, and specialise in niche products as well as standard commercial grades.