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46CrMo4

1.7228
alloy_steelquenched_tempered
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Higher-carbon CrMo Q&T steel — 0.42-0.50% C vs 0.38-0.45% for 42CrMo4. Higher maximum hardness (HRC 52-56 surface after induction) and tensile strength (UTS 1000-1200 MPa QT) at the expense of slightly reduced toughness and weldability. Used where 42CrMo4 is not quite hard/strong enough: heavy-duty gear shafts, large bolts (12.9 class), crankshafts, and torsion bars.

International equivalents

FlagStandardCountryGradeNumberMatch
🇪🇺ENEurope46CrMo4 / 1.72281.7228100%

Sources: EN 10083-3

Chemical composition comparison (wt%)

Side-by-side: 46CrMo4 (EN 10083-3) vs 46CrMo4 / 1.7228 (EN) (EN 10083-3)

Element46CrMo4 (EN 10083-3)46CrMo4 / 1.7228 (EN)Overlap
C—0.42–0.5%—
Si—0–0.4%—

Mechanical properties

Compatibility verdict

46CrMo4 and 46CrMo4 / 1.7228: 100% composition match

Related materials

42CrMo4

1.7225
cr_mo

High-strength quenched and tempered chromium-molybdenum steel. Widely used for shafts, gears, crankshafts, connecting rods, and high-strength bolts. Excellent hardenability and good fatigue resistance.

🇪🇺 42CrMo4🇫🇷 42CD4🇬🇧 708M40 / EN19🇯🇵 SCM440

34CrNiMo6

1.6582
cr_ni_mo

High-strength quenched and tempered Cr-Ni-Mo steel. Excellent hardenability and toughness, suitable for large cross-sections. Used for heavy-duty shafts, gears, turbine parts, and aerospace components.

🇪🇺 34CrNiMo6🇨🇳 34CrNiMo6🇬🇧 817M40 / EN24🇯🇵 SNCM439

16MnCr5

1.7131
case_hardening

Low-carbon case-hardening steel with manganese and chromium. Excellent for carburizing to produce a hard, wear-resistant surface with a tough core. Standard choice for gears, camshafts, piston pins, and transmission components.

🇪🇺 16MnCr5🇫🇷 16MC5🇨🇳 16MnCr5🇯🇵 SCr415
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