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36CrMo4

1.7220
alloy_steelquenched_tempered
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Chromium-molybdenum Q&T steel — between 25CrMo4 (lower C) and 42CrMo4 (higher C). Good balance of through-hardenability and toughness for medium-sized parts. Used for shafts, gears, bolts, studs, and structural components in oil/gas and power generation. Better weldability than 42CrMo4 due to lower C.

International equivalents

FlagStandardCountryGradeNumberMatch
🇺🇸AISIUSAAISI 4137 (approximate)—REF
🇪🇺ENEurope36CrMo4 / 1.72201.7220100%

Sources: ASTM A29, EN 10083-3

Chemical composition comparison (wt%)

Side-by-side: 36CrMo4 (EN 10083-3) vs 36CrMo4 / 1.7220 (EN) (EN 10083-3)

Element36CrMo4 (EN 10083-3)36CrMo4 / 1.7220 (EN)Overlap
C—0.32–0.4%—
Si—0–0.4%—

Mechanical properties

Compatibility verdict

36CrMo4 and 36CrMo4 / 1.7220: 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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