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Grade

AISI 201 stainless steel strip

Manganese austenitic: less nickel, more stable price, high strength when work-hardened.

1.4372 · X12CrMnNiN17-7-5Cr-Mn-Ni austeniticThickness 0.05–2.50 mmWidth 3–1250 mm
AISI 201 – AISI 201 stainless steel strip

Description

AISI 201 (EN 1.4372, X12CrMnNiN17-7-5) is a 200 series austenitic stainless steel in which part of the nickel is replaced by manganese and nitrogen: it contains about 17% chromium, 6–7% manganese and 4–5% nickel. Compared with 304 it costs less and is less affected by nickel price swings; nitrogen gives it higher mechanical strength, especially in the work-hardened condition, with similarly good formability. Corrosion resistance is lower than 304: it is suited to indoor or mildly aggressive environments. It is used for window spacers, flue liners, kitchen utensils, small appliances and stamped parts. 3S supplies it annealed 2R/BA or work-hardened, as strip, narrow strips from 3 mm, spools, coils and sheets from 0.05 to 0.70 mm (annealed) and from 0.05 to 2.50 mm (work-hardened).

Properties

  • Less nickel than 304: more stable cost
  • High mechanical strength, especially when work-hardened
  • Good formability
  • Slightly magnetic after cold forming

Applications for this grade

Supply

ParameterRangeNotes
ThicknessAnnealed 0.05 – 0.70 mm
Work-hardened 0.05 – 2.50 mm
Other 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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What is the difference between AISI 201 and AISI 304?
201 replaces part of the nickel with manganese and nitrogen: it costs less and is mechanically stronger, but less corrosion resistant. For humid, outdoor or chloride environments 304 or 316L is preferable.
Is AISI 201 magnetic?
In the annealed condition it is practically non-magnetic; after cold forming, like 301, it can become slightly magnetic.

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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