|C 0.20||Si 0.80||Mn 1.70||S 0.010-0.015||P 0.020-0.025||Cr 1.50||Mo 0.70||NI 2.0||Ti 0.05||Zr 0.15||Cu 0.50||Nb 0.06||V 0.12|
Virat Special Steels is the leading Supplier & Stockiest of 8620 in India.
8620 Steel is a hardenable chromium, molybdenum, nickel low alloy steel more often used for carbonizing to advance a case-hardened phase. This case-hardening will influence in just right wear traits. This Grade is in most cases used for gears, ring gears, shafts and crankshafts.
8620 is a hardenable chromium, molybdenum, nickel low alloy steel often used for carburizing to develop a case hardened part. This case-hardening will result in good wear characteristics.
|Thermal Conductivity at °C||20||350||700|
Application- Gears, shafts and other applications where a hard carborized case and a tough core are desired.
|Soft annealing °C||Cooling||Hardness HB|
|Stress-relief annealing °C||Cooling|
|1st pre-heating °C||2nd and 3rd||Hardening °C||Quenching||Tempering °C||Hardness after Teperature HRC|
|up to approx. 400 in an air-circulating furnace||780 and 850||840-870||810 °C Oil ,Quench||at least twice 150-200||62 – 64|