1.Condition:Hot rolled , Pre-harden &tempering , black surface2.Hardness: 30~36HRC3. Hot rolled technology:EAF+LF+VD4.Production leadtime: 7~15 days5.Ultrasonic test standards: SPE1921,GR3,Class D/D6.Chemical composition:C:0.35-0.45 Si:0.30-0.50 Mn:1.40-1.60 P≤0.035 S:0.05-0.10 Cr:1.80-2.00 Mo:0.15-0.257. Heat Treatment: Annealing: 710 - 730 °C Hardness after annealing: Max. 230 HB Stress relieving: Approx. 650 °C Hot forming: 1050 - 850 °C Hardening: 870 - 890 °C Quenching media: Oil, Salt bath, Vacuum Hardness after quenching: 50 - 54 HRC8.Applications:Injection dies without special surface requirements and low mechanical stresses, medium and large sized moulds for plastic processing, dies of light alloys with low melting point, mould fittings, mould frames for the injection molding and die casting industries, components for general mechanical engineering, tools for synthetic plastics processing, die holders, support plates, casings, chases, recipient sleeves, constructional parts, hyrdo forming tools9.Competitive Advantage:1.Excellent machined ability properties with high S content2.Good Toughness properties,3. Strong wear resistance4.Uniform hardness of material and stablitity5.Competitive price6.Fast production leadtime7.All the material are inspected with 3 times to meet the highly standards
