Abbreviated DIN name:
Chemical analysis (%):
1.276745 NiCrMo 16
HASCO colour code:
Hardness when supplied:
green / white
annealed to max. 285 HB (~965 N/mm²)
Material properties: Due to the high nickel and corresponding
carbon content, this material is a very evenly hardening,
dimensionally stable steel with high toughness and resistance
to impact and compressive stress.
Uses: Mould plates and inserts for the processing of thermo-
plastics and thermosets, especially for high gloss polishes,
e.g. for transparent melts and components with high surface
requirements, mould components with high compressive and
flexural stresses, embossing tools and other uses for which
the above requirements are needed.
Thermal expansion coefficient (10-6·m) / (m·K)
Thermal conductivity W / (m·K)
||Definitely possible due to the metallurgical properties. For high-gloss polishes, use the ESR quality.
||At 840°C – 870°C.
Details can be found in the time-temperature conversion and tempering charts. The most suitable heat treatment for the relevant workpiece should be fixed by the hardening shop. The hardness should be specified by the hardening shop and checked on delivery.
||620°C – 650°C, approx. 4 h
|To eliminate residual stresses after coarse machining at
approx. 600°C – 650°C, approx. 4 h with slow heating and furnace cooling.
|50 - 56 HRC
Time-temperature conversion chart Tempering chart