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100CrMn6

1.3520
alloy_steelbearing
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Through-hardening bearing steel with higher Mn than 100Cr6 for improved hardenability in larger cross-sections. Used for bearing rings, rolling elements, and precision components where 100Cr6 cannot achieve sufficient core hardness due to section size.

International equivalents

FlagStandardCountryGradeNumberMatch
🇺🇸AISIUSAAISI 52100 (approx)—REF
🇪🇺ENEurope100CrMn61.3520100%

Sources: ASTM A295, EN ISO 683-17

Chemical composition comparison (wt%)

Side-by-side: 100CrMn6 (EN ISO 683-17) vs 100CrMn6 (EN) (EN ISO 683-17)

Element100CrMn6 (EN ISO 683-17)100CrMn6 (EN)Overlap
C—0.9–1.05%—
Si—0.45–0.75%—

Mechanical properties

Compatibility verdict

100CrMn6 and 100CrMn6: 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

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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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