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Aircraft Stainless Steel BS S526 (AMS 5689)
Technical Data Sheet
BS S526 is the British aerospace standard for stainless steel 321, and is often supplied dual-certified to the U.S. aerospace specification AMS 5510. It is supplied in the annealed condition to allow good cold workability and is suitable for low strength components requiring good corrosion resistance and weldability.
| Chemical Composition Limits | |||||||
| Weight% | C | Si | Mn | Cr | Mo | P + S max | Ni |
| S526 | 0.08 | 0.20-1.00 | 0.50-2.00 | 17-19 | 1.0 | P 0.035 S 0.025 | 9.0-11.0 |
Typical Mechanical Properties
| Grade | Treatment | Tensile Strength Rm , N/mm² | Yield Strength, N/mm² | Elongation % | Ruling Section |
| S526 | Softened | 540 | 210 | 30 | <1.5mm |
| S526 | Softened | 540 | 210 | 35 | 1.5-3.0mm |
| S526 | Softened | 540 | 210 | 40 | > 3.0 mm |
Availability
Alloy S526 is available in Sheet and Strip. For all stock availability contact Sales.
Other Chemically similar Specifications
321S31 - AMS 5510
AMS 5689 Steel, Corrosion and Heat Resistant, Wire 18 Cr 10.5Ni 0.40 Ti, Solution Heat
UNS S32100 , Alloy 30321
