54SiCr6
1.7102Si-Cr spring steel for high-performance automotive suspension and valve springs. Lower sag tendency than 46Si7 due to Cr addition. The standard European valve spring steel. Used for suspension springs, valve springs, torsion bars, and stabilizer bars where fatigue resistance is critical.
International equivalents
| Flag | Standard | Country | Grade | Number | Match |
|---|---|---|---|---|---|
| 🇺🇸 | SAE | USA | SAE 9254 | G92540 | REF |
| 🇪🇺 | EN | Europe | 54SiCr6 | 1.7102 | 100% |
| 🇯🇵 | JIS | Japan | SUP12 | — | 93% |
Sources: ASTM A29, EN 10089:2002, JIS G4801
Mechanical properties
Compatibility verdict
54SiCr6 and SUP12: 93% 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.
Export this comparison as PDF
Professional datasheet with equivalents, composition, and properties. Ready for your QM documentation.
Download PDF — €4.90Included with PRO subscription