Special Steel 1.6523/SAE8620/20CrNiMo For Machinery
Die Steel Bar
DIN, JIS, AISI, ASTM, GB, BS
100% UT passed
Special Steel 1.6523/SAE8620/20CrNiMo For Strucutre
1.Feature: 1) Demand has high yield strength, tensile strength and fatigue strength, there has enough plasticity and toughness; 2) Demanding by refining outside the furnace, vacuum electroslag remelting or processing, or double vacuum smelting, vacuum induction furnace smelting suitable heat treatment; 3) Corrosion resistant steel, heat-resistant steel, wear-resistant steel, magnetic steel, and other special physical and chemical properties of the steel;
2.Application: 1) Zinc, aluminum, magnesium and other alloy die-casting molds; 2) Heat dies and all kinds of hot forged molds; 3) Metal extrusion die holder;
3. Ready Stock: Round bar dia20-100mm black surface and hot rolled deliver condition.
4. Heat Treatment 1) Preheating 2-4 hours in 500-600°C; 2) Keeping temperature for 2 hours in 850-880°C; 3) Oil cooling to reach 50-100°C; 4) After quenching can reach a hardness of 50-52HRC, then tempered at 200°C, then hardness can reach above 48 HRC;
All the sizes as require can be customerized as fresh production with MOQ,products of required specifications can be developed/produced per international, chinese or industry standards, or based on agreements with customers.