1524
Data verified1524 is a low carbon steel with 1.35–1.65% manganese, giving noticeably better hardenability and core strength than 1020/1022. It is a cost-effective carburizing steel for larger case-hardened parts.
Chemical composition
| Element | Content (%) |
|---|---|
| C | 0.19–0.25 |
| Mn | 1.35–1.65 |
| P | ≤0.040 |
| S | ≤0.050 |
Weight percent, per the governing standard ranges. Actual values per heat are on the mill certificate.
Properties
| Tensile strength | 440–540 MPa (hot rolled, typ.) |
| Density | 7.85 g/cm³ |
Heat treatment
Normalize 880 °C; case carburize 900–930 °C for gear-type duty.
Equivalent grades
| Standard | Designation |
|---|---|
| aisi | 1524 |
| gb | 20Mn (near) |
Compare side by side: 1524 vs 1541 · 1524 vs 1022
Equivalents overlap in chemistry and use but are not always identical — see our equivalents guide before substituting in certified designs.
Applications & Processing
Applications: Carburized gears, pinions, chain components, bolts, medium shafts.
Processing: Good machinability; weldable with low-carbon practice and modest preheat on heavy sections.
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Ask for a quotationVisit NasteelSource: SAE J403 published ranges · Last updated 2026-11-03. Data is indicative — verify critical values against the governing standard and mill certificate before use.