Steel grade EN16 MNCR5

EN16 MNCR5 Engineering steel

16MNCR5 is a low alloy case hardening steel. After carburizing/carbonitriding and hardening it produces a hard wear resistant case with tough core, with good resistance to shock. The ?as rolled and quenched? surface hardness usually ranges from 37-43HRc.

16MNCR5 grade demonstrates reasonably high hardenability, and excellent forgeability and it will weld. 16MNCR5 can be used as an alternative to more costly alloyed case hardening steels.

Grade 16MNCR5 and 20MNCR5 steels are case hardening steels used extensively for both carburising and carbonitriding, demonstrating reasonably high hardenability and excellent forgeability. It has become an accepted alternative to SAE 8620 in some cases.

Steel stock range

High Peak Steels stock EN16 MNCR5 in black steel round bar.

Associated standards

UK Standard EN16 MNCR5 | European Grades 21NiCrMo2-2 | SAE/AISI 8620

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SAE8620 Black steel

ProductMin sizeMax size
codes-round230mm dia300mm dia
codes-flat2
codes-square2
codes-hex2

SAE8620 Chemical Composition

 CSiMnSPCrNiMo
Min0.180.150.70.40.40.15
Max0.230.350.90.030.040.60.70.25

Typical Applications of SAE8620 steel

  • SHAFTS
  • PINS
  • PINIONS
  • GEARS
  • CAMSHAFTS
  • CLUTCH PLATES
  • DRIVE WHEELS