P20 / 1.2311
AISI P20 / DIN 1.2311 tool steel manufacturers and suppliers, supplied in round rods,square/flat bars,plates,blocks,produced as forged,rolled and cold drawn.
P20 steel is a low alloyed tool steel according to AISI / ASTM standard,and 1.2311 steel is as per W-Nr Germany standard. This material gives an excellent polished finish and is one of the most widely accepted specifications for machine cut plastic moulds. P20 tool steel is commonly supplied in the hardened and tempered condition. DIN 1.2311 steel also gives excellent wear resistance.
1.Chemical Composition (%)
– AISI P20
Carbon: 0.40; Silicon: 0.40; Manganese: 1.00;
Chromium: 1.20; Molybdenum: 0.35;
– DIN 1.2311
Carbon:0.35/0.45; Silicon:0.20/0.40; Manganese:1.30/1.60; Phosphorus,Sulphur:0.030max;
3.Form & Size
1)Fuhongsteel are manufacturers and suppliers of AISI P20 Tool Steel round bars, flat/square bars,plates,blocks.
2)DIN 1.2311 Tool Steel Size Available(Length can be customized):
dia. 1-16mm(cold drawn);
dia. 10-50mm(hot rolled);
dia. 50-180mm(hot forged);
dia. 180-300(free forging);
Thickness: 1-2.5mm(cold rolled); 1.5-20mm(hot rolled); 20-300mm(hot forged);
Width: Max 800mm;
2)P20 die steel should be free of heavy scale,deep pitting,laps,porosity,injurious segregations,excessive nonmetallic inclusions,seams,cracks,slivers,scale marks,dents,soft and hard spots,pipes or any defects that would detrimentally affect the suitability of 1.2311 mold steel.
3)Visual examination for P20 mould steel shall be made to ensure compliance with the requirements for workmanship,finish,dimensions and tolerances,identification marking and packaging.
The permissible deviation of 1.2311 tool steel shall not exceed 3mm in 1000mm length.This applies also to bars under 1000mm in length.Measurement is taken on the concave side of P20 steel with a straight edge.
AISI P20 tool steel annealed hardness values when obtained in accordance with the latest issue of test methods and definitions A370 shall not exceed 255 Brinell.
Heat uniformly to 770-790°C. Soak well and cool slowly in the furnace.
Pre heat 1.2311 die steel component to the temperature 750°C.The material can be brought up to 1000°C for air cooling, or 970°C for oil quenching. Soak thoroughly at the temperature for thirty minutes per 25mm,then cool or quench. when heating for hardening,it should not exceed 1020°C.
AISI P20 steel should be done with the least possible delay after hardening.Select a suitable tempering temperature, heat slowly and uniformly.When 1.2311 steel has reached the desired temperature, soak for at least one hour per 25mm of whole dia.Double tempering is recommended.The second tempering should be a repetition of the first.
1)Grade,Size,Quantity in Number & Weight
5)Ultrasonic Test Report.
Enquiry for AISI P20 / DIN 1.2311 tool steel round rods,square/flat bars,plates,blocks.