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Grade

AISI 310S stainless steel strip

The most highly alloyed of the series: maximum resistance to hot oxidation.

1.4845 · X6CrNi25-20High chromium‑nickel austeniticThickness 0.05–0.70 mmWidth 3–1250 mm
AISI 310S – AISI 310S stainless steel strip

Description

AISI 310S (EN 1.4845, X8CrNi25-21) is one of the best-performing austenitic stainless steels at high temperature, with about 25% chromium and 20% nickel. It offers excellent oxidation resistance, as a guide up to around 1100 °C in air, good resistance to carburisation and a stable austenitic structure even after long exposure to heat. It is used for furnace parts, heat-treatment belts and meshes, supports, radiant shields, burner components and fuel cells. 3S supplies AISI 310S precision strip in the annealed condition, as strip, narrow strips from 3 mm, spools and sheets in thicknesses from 0.05 to 0.70 mm.

Properties

  • Oxidation resistance up to approx. 1100 °C
  • Stable austenitic structure at high temperatures
  • Good resistance to thermal cycling
  • Supplied annealed, weldable and formable

Applications for this grade

Supply

ParameterRangeNotes
ThicknessAnnealed 0.05 – 0.70 mmOther thicknesses on request
Width3 – 1250 mmSlitting with sheared or deburred edges
FinishesAnnealed 2R / BA • Work‑hardened 2HCalibrated mechanical properties
FormatsStrip • Narrow strips • Spools • SheetsSheets cut to size up to 1000 mm
SpoolsFrom 15 kg to 1500 kgID 50–400 mm • traverse or parallel winding

Tolerances according to EN ISO 9445 or customer specification. 3.1 certificates on request.

Frequently asked questions

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Is AISI 310S magnetic?
No. In the annealed condition it is non-magnetic and, thanks to its high nickel content, remains stable even after cold forming. This is why it is also used where non-magnetic behaviour is needed at temperature.
Does 310S resist sulphur-bearing atmospheres?
In reducing atmospheres containing sulphur, high-nickel grades can be attacked; in oxidising atmospheres behaviour is better. Describe your operating environment and we will help you evaluate the most suitable grade.

How can I get a quote?

Tell us the alloy, finish, thickness, width, edge and format (strip/narrow strip/spool) and we will send you a quick quotation.

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