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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

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Disclaimer
Every effort is made to ensure that technical specifications are accurate. However, technical specifications included herein should be used as a guideline only. All specifications are subject to change without notice.