34Cr4
1.7033Medium-carbon chromium steel with moderate hardenability. Used for components requiring moderate through-hardening: axles, shafts, connecting rods, bolts, and general machine parts. Less expensive alternative to 41Cr4 for smaller cross-sections.
International equivalents
| Flag | Standard | Country | Grade | Number | Match |
|---|---|---|---|---|---|
| 🇺🇸 | AISI | USA | AISI 5132 | — | REF |
| 🇪🇺 | EN | Europe | 34Cr4 | 1.7033 | 100% |
| 🇯🇵 | JIS | Japan | SCr430 | — | 88% |
Sources: ASTM A29, EN 10083-1:2006, JIS G4104
Mechanical properties
Compatibility verdict
34Cr4 and SCr430: 88% 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.
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.
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