1137
Data verified1137 is a medium carbon, high manganese resulfurized steel combining free-machining behavior with useful strength. It is widely used for studs, bolts and shafts produced on automatic lathes.
Chemical composition
| Element | Content (%) |
|---|---|
| C | 0.32–0.39 |
| Mn | 1.35–1.65 |
| P | ≤0.040 |
| S | 0.08–0.13 |
Weight percent, per the governing standard ranges. Actual values per heat are on the mill certificate.
Properties
| Tensile strength | 560–660 MPa (hot rolled, typ.) |
| Density | 7.85 g/cm³ |
Heat treatment
Normalize 850–880 °C; can be induction hardened; limited through-hardening.
Equivalent grades
| Standard | Designation |
|---|---|
| aisi | 1137 |
Compare side by side: 1137 vs 1141
Equivalents overlap in chemistry and use but are not always identical — see our equivalents guide before substituting in certified designs.
Applications & Processing
Applications: Studs, bolts, shafts, couplings, screw-machine parts of medium strength.
Processing: Very good machinability; not recommended for welding; induction hardening responds well.
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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.