SAE 1518
Data verifiedSAE 1518 is a carbon-manganese steel: low carbon like 1020 but with 1.10–1.40% manganese for higher as-rolled strength — a common seamless tube and bar grade in North and Latin American specs.
Chemical composition
| Element | Content (%) |
|---|---|
| C | 0.15–0.21 |
| Mn | 1.10–1.40 |
| 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 | 430–520 MPa (typ.) |
| Density | 7.85 g/cm³ |
| Weldability | Good |
Heat treatment
Used as-rolled/normalized; carburizable for wear parts.
Equivalent grades
| Standard | Designation |
|---|---|
| aisi | 1518 |
Compare side by side: SAE 1518 vs SAE 1020
Equivalents overlap in chemistry and use but are not always identical — see our equivalents guide before substituting in certified designs.
Applications & Processing
Applications: Seamless tube for machining, hydraulic parts, shafts, structural components.
Processing: Good machinability and weldability; better strength consistency than plain 1020.
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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.