1075
Data verified1075 is a high carbon steel with slightly lower manganese than 1070/1080, widely traded as spring strip and bar. It takes a keen edge and a reliable spring temper in thin sections.
Chemical composition
| Element | Content (%) |
|---|---|
| C | 0.70–0.80 |
| Mn | 0.40–0.70 |
| 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 | 760–920 MPa (normalized, typ.) |
| Hardness (spring temper) | 42–50 HRC typical |
| Density | 7.85 g/cm³ |
Heat treatment
Anneal 790–820 °C; quench 800–830 °C oil; temper 350–470 °C.
Equivalent grades
| Standard | Designation |
|---|---|
| din | C75 type (near) |
| aisi | 1075 |
| jis | SK5 family (near) |
| gb | 75 |
Compare side by side: 1075 vs 1080 · 1075 vs 1070
Equivalents overlap in chemistry and use but are not always identical — see our equivalents guide before substituting in certified designs.
Applications & Processing
Applications: Spring strip and clips, saw blades, scythes and blades, clutch discs.
Processing: Work and machine in the annealed state; decarburization control is important at this carbon level.
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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.