8620 (21NiCrMo2)

8620 (21NiCrMo2)

Unlike 5120, it is a case-hardening steel that contains chromium-molybdenum-nickel as alloy elements. Due to molybdenum and nickel, its mechanical properties are better than 5120. It is used in applications where a ductile core and hard surface are desired against wear through the case-hardening process. It is supplied in a soft annealed condition.

C Si Mn P Max S Cr Mo Ni
0,17 - 0,23 0,04 0,65 - 0,95 0,035 0,040 0,35 - 0,70 0,15 - 0,25 0,40 - 0,70
STANDARD EQUIVALENTS OF THE MATERIAL
DIN AISI/SAE EN
1.6523 8620 21NiCrMo2
APPLICATION AREAS
  • Machine components
  • Transmission parts
  • Gear wheel, bevel gear
  • Shaft, pin, bushing, and similar parts
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