60Si2Mn
Data verified60Si2Mn is China’s standard silicon-manganese spring steel (GB/T 1222), produced in very large tonnage for vehicle and machinery springs. Its high silicon gives the same high elastic limit that makes SAE 9260 popular, at commodity-steel cost.
Chemical composition
| Element | Content (%) |
|---|---|
| C | 0.56–0.64 |
| Si | 1.50–2.00 |
| Mn | 0.60–0.90 |
| P | ≤0.035 |
| S | ≤0.035 |
| Cr | ≤0.35 |
Weight percent, per the governing standard ranges. Actual values per heat are on the mill certificate.
Properties
| Tensile strength | ≥1275 MPa (Q&T, GB/T 1222 reference) |
| Yield strength | ≥1175 MPa (Q&T, GB/T 1222 reference) |
| Density | 7.85 g/cm³ |
Heat treatment
Quench 870 °C oil; temper 480 °C (GB/T 1222 reference cycle); normalize or anneal for machining.
Equivalent grades
| Standard | Designation |
|---|---|
| din | 1.5028 (65Si7, near) |
| aisi | 9260 (near) |
| jis | SUP6 (near) |
| gb | 60Si2Mn (GB/T 1222) |
Compare side by side: 60Si2Mn vs 9260
Equivalents overlap in chemistry and use but are not always identical — see our equivalents guide before substituting in certified designs.
Applications & Processing
Applications: Leaf springs, coil springs, torsion bars, spring washers, railway and agricultural springs.
Processing: Decarburization is the main quality risk — reputable mills control it to GB/T 1222 limits; shot peen for fatigue service.
Need 60Si2Mn from stock?
Steel.Wiki is sponsored by Shenzhen NewAsia Special Steel (Nasteel), a special-steel stockholder in Shenzhen stocking mold, tool and alloy steels with EN 10204 3.1 certification.
Ask for a quotationVisit NasteelSource: GB/T 1222 published ranges · Last updated 2026-11-03. Data is indicative — verify critical values against the governing standard and mill certificate before use.