46Si7
1.5024Silicon spring steel with high elastic limit. Standard flat/leaf spring steel in Europe. Si provides high sag resistance. Used for leaf springs, Belleville washers, lock washers, and agricultural machine springs.
International equivalents
| Flag | Standard | Country | Grade | Number | Match |
|---|---|---|---|---|---|
| 🇺🇸 | AISI | USA | AISI 9260 (approx) | — | REF |
| 🇪🇺 | EN | Europe | 46Si7 | 1.5024 | 100% |
Sources: ASTM A29, EN 10089:2002
Chemical composition comparison (wt%)
Side-by-side: 46Si7 (EN 10089) vs 46Si7 (EN) (EN 10089:2002)
| Element | 46Si7 (EN 10089) | 46Si7 (EN) | Overlap |
|---|---|---|---|
| C | — | 0.42–0.5% | — |
| Si | — | 1.5–1.8% | — |
Mechanical properties
Compatibility verdict
46Si7 and 46Si7: 100% 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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