AISI 302 (UNS S30200)
Austenitic Stainless Steel
302 Stainless Steel Overview
Chemistry, mechanical properties, physical properties, and practical selection notes for rolled AISI 302 products.
Very similar family to 304; historically common in strip/foil and cold-worked applications.
Non-magnetic when annealed; may become magnetic after cold work.
Standards & Designations
ASTM A240 ♦ UNS S30200
AISI 302 Properties
| Chemical composition (wt%) | Limits |
|---|---|
| C | 0.15 max |
| Cr | 17.0–19.0 |
| Ni | 8.0–10.0 |
| Mn | 2.00 max |
| Si | 1.00 max |
| P | 0.045 max |
| S | 0.030 max |
| Mechanical (annealed) | Requirements (min / max) |
|---|---|
| YS | 30 ksi min |
| UTS | 75 ksi min |
| Elongation | 40% min |
| Hardness | B92 max |
Values shown are typical/spec limits at room temperature unless noted; requirements vary by product form, size, and specification.
About AISI 302 Stainless Steel
302 stainless steel from Source21 is a classic austenitic stainless steel grade known as the original 18 8 alloy that set the foundation for modern 304 stainless steel. With slightly higher carbon content Type 302 stainless steel offers increased strength elasticity and spring performance making it well suited for forming stamping and precision manufacturing. It provides excellent corrosion resistance in everyday and industrial environments while delivering dependable mechanical properties for components that require durability and resilience.
Common applications include wire forms fasteners small springs retaining rings and electronic components where consistent performance and clean appearance are essential. Source21 supplies 302 stainless steel in coil, strip, sheet, foil, and bar, all produced to meet ASTM A240, ASTM A666, and AMS 5516 standards.
Contact the Source21 team today to place an order explore availability or get expert guidance on selecting the right stainless steel for your application supported by responsive service and reliable supply.