16MnCr5
1.7131Low-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.
International equivalents
| Flag | Standard | Country | Grade | Number | Match |
|---|---|---|---|---|---|
| 🇺🇸 | AISI | USA | AISI 5115 | G51150 | REF |
| 🇪🇺 | EN | Europe | 16MnCr5 | 1.7131 | 100% |
| 🇫🇷 | AFNOR | France | 16MC5 | — | 97% |
| 🇨🇳 | GB | China | 16MnCr5 | — | 95% |
| 🇯🇵 | JIS | Japan | SCr415 | — | 85% |
Sources: ASTM A29, EN 10084:2008, NF EN 10084, GB/T 3077, JIS G4104
Mechanical properties
Compatibility verdict
16MnCr5 and 16MC5: 97% composition match
Related materials
42CrMo4
1.7225High-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.
34CrNiMo6
1.6582High-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.
25CrMo4
1.7218Medium-carbon chromium-molybdenum steel with good toughness and weldability. Used for seamless tubes, pressure vessels, aircraft structural parts, and automotive components. Better weldability than 42CrMo4 due to lower carbon.
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