305
Data verified305 is a high-nickel austenitic grade whose extra nickel lowers the work-hardening rate compared with 304. It is chosen for severe deep drawing and spinning where 304 would harden and crack too quickly.
Chemical composition
| Element | Content (%) |
|---|---|
| C | ≤0.12 |
| Si | ≤1.00 |
| Mn | ≤2.00 |
| P | ≤0.045 |
| S | ≤0.030 |
| Cr | 17.00–19.00 |
| Ni | 10.50–13.00 |
Weight percent, per the governing standard ranges. Actual values per heat are on the mill certificate.
Properties
| Delivery condition | Annealed |
| Hardness | ≤187 HB (annealed) |
| Tensile strength | 485–655 MPa |
| Density | 7.90 g/cm³ |
Heat treatment
Solution anneal 1010–1120 °C, rapid cool.
Equivalent grades
| Standard | Designation |
|---|---|
| din | 1.4303 |
| aisi | 305 |
| jis | SUS305 |
Compare side by side: 305 vs 304
Equivalents overlap in chemistry and use but are not always identical — see our equivalents guide before substituting in certified designs.
Applications & Processing
Applications: Deep-drawn kitchen sinks and cookware, spun parts, drawn cups and housings, rivets.
Processing: Outstanding deep-drawing and spinning behaviour; weldability and corrosion resistance similar to 304.
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Ask for a quotationVisit NasteelSource: ASTM A240 / EN 10088 published ranges · Last updated 2026-11-03. Data is indicative — verify critical values against the governing standard and mill certificate before use.