Skip to content

15NiCrMo13

1.6657
alloy_steelcase_hardening
Export PDF€4.90

Heavy-duty NiCrMo case hardening steel — Ni 3.0-3.5% for maximum core toughness and deep hardenability. For the largest case-hardened parts: heavy truck ring gears, mill pinions, crane slewing gears, and large marine gearboxes up to 500mm ruling section. Surface HRC 60-63 with extremely tough core. More Ni than 17CrNiMo6 = even deeper hardenability.

International equivalents

FlagStandardCountryGradeNumberMatch
🇪🇺ENEurope15NiCrMo13 / 1.66571.6657100%

Sources: EN 10084

Chemical composition comparison (wt%)

Side-by-side: 15NiCrMo13 (EN 10084) vs 15NiCrMo13 / 1.6657 (EN) (EN 10084)

Element15NiCrMo13 (EN 10084)15NiCrMo13 / 1.6657 (EN)Overlap
C—0.14–0.19%—
Si—0–0.4%—

Mechanical properties

Compatibility verdict

15NiCrMo13 and 15NiCrMo13 / 1.6657: 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
More Alloy Steel materials →

Export this comparison as PDF

Professional datasheet with equivalents, composition, and properties. Ready for your QM documentation.

Download PDF — €4.90

Included with PRO subscription