Back (Fe-Base)

1.2067 | 102Cr6 +QO +T Hardened and tempered at 240 °C (quenchant: oil)

Numeric designation1.2067 | 1.3505 | SAE52100 | AMS6440
Chemical designation102Cr6 | 100Cr6
State+QO +T Hardened and tempered (quenchant: oil)
Etching3% Nital

This hypereutectoid steel (bar stock with ⌀ = 16 mm) was austenitised at 840 °C for 30 min, quenched in oil and then tempered at 240 °C for 2 hours.

The microstructure consists of martensite with finely distributed bright carbides.

Condition:

  • 840 °C / 30 min / oil – 240 °C / 2 h / air
  • Core hardness 702 HV1