EN19 is a chromium-molybdenum alloy steel. The chromium content provides good hardness penetration, and the molybdenum content ensures uniform hardness and high strength. EN19 chrome-molybdenum steel can be oil hardened to a relatively high level of hardness. The desirable properties of the EN19 include superior toughness, good ductility, and good wear resistance in the quenched and tempered conditions.

The EN19 cold finished annealed chromium-molybdenum alloy steel can be heated using various methods to yield a wide range of properties, hence it is often used as stock for forging as it has self-scaling properties. EN19 is capable of resisting creep in temperatures up to 538°C (1000°F) and maintaining its properties even after long exposure at comparatively high working temperatures.

The EN19 cold rolled rounds are available in the 4140 variant that contains 0.15-0.35 lead. The lead content improves machinability but has a significant effect on other desirable properties.

EN16T EN24T EN26W EN30B EN31 EN32 EN36 EN40B EN41B

605M36T 709M40T 708M40T 817M40T 826M40W 835M30 535A99 655M13 722M24 905M39

4130 4140 4145 4330V 4340 8620 6150 S690QL

42CrMo4 16MnCr5

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