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Stainless steels

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  • Our expertise
  • Useful documents
  • Our solutions
  • Nickel-based Alloys
  • Super-austenitics
  • Duplex (austenitic ferritic)
  • Specialties
  • Austenitic
  • Heat resistant alloys
  • Ferritic Martensitics and Precipitation Hardening stainless

Our expertise

  • EAF route with careful selection of raw materials to produce high purity steel.
  • Fine tuned secondary metallurgy with vacuum and degassing processes (AOD, VOD) to achieve high cleanliness steels.
  • Heavy and wide quarto plates produced by continuous casting or bottom poured ingot with a comprehensive dimensional range.
  • A dedicated world-class research and development center providing technical support and developing new products to meet market needs.
  • A global sales network guaranteeing single point of contact in your geographical area and being your representative with our mills.
  • A web-based customer service providing access to order confirmations, invoices, order status and mill test certificates.

Useful documents

Our solutions

Nickel-based Alloys

Advantages
  • Nickel based alloys present ultra high corrosion resistance properties in severe conditions such as H2S environments

Super-austenitics

Advantages
  • Superaustenitic stainless steels exhibit great resistance to corrosion and high strength thanks to their high molybdenum, nitrogen and nickel contents. These steels approach the performance of highly corrosion resistant nickel based alloys at a significant lower cost.
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Duplex (austenitic ferritic)

Advantages
  • Compared to equivalent austenitic grades duplex shows very attractive features at lower alloy cost : – higher resistance to Stress Corrosion Cracking, – higher mechanical properties.
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Specialties

Advantages
  • These stainless steels are designed for specific applications :
  • low ferrite content grades for amagnetic properties and/or high corrosion resistance
  • borated stainless steels for neutronic radiation shielding
  • optimized chemical composition with low residual elements, addition of specific alloying elements, and homogeneous microstructure to enhance the corrosion resistance in nitric, sulfuric or urea-carbamate media
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Austenitic

Advantages
  • These are the most popular of the stainless steels because of their ductility, ease of working and good corrosion resistance; they are derived from the 18Cr-8Ni stainless steel Type 304. The other grades are developed to provide special corrosion resistance properties by adding Molybdenum, Chromium and/or decreasing Carbon content (L grades).
  • Addition of stabilizing elements like Titanium or Niobium (Columbium) provides better weldability. Addition of Nitrogen increases mechanical strength as for grades 304N or 316N.
  • They are also available in the heat resistant version (H grades) with a higher Carbon content and coarser grain size to improve creep resistance. They can be used up to 870°C /1600°F.
  • They also exhibit good ductility and toughness even at cryogenic temperatures.
  • All are essentially nonmagnetic in the annealed condition, although some may become slightly magnetic by cold working.
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Heat resistant alloys

Advantages
  • Heat resistant alloys thanks to nickel, silicon, aluminum and rare earth materials are creep resistant and resist to high temperature corrosion (600°C-1100°C).
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Ferritic Martensitics and Precipitation Hardening stainless

Advantages
  • Ferritic stainless steels: These grades are characterized by a very low content of nickel (less than 1%). Their low carbon content prevents hardening by heat treatment, their pitting corrosion reistance is equivalent to 300 series.
  • Martensitic stainless steels: Basic corrosion resistant grades (Cr~13%), the higher carbon content compare to ferritic allow them to be hardened by heat treatment while still being fairly weldable.
  • Precipitation hardening stainless steels: The addition of aluminum, copper or aluminium in these chromium-nickel grades allow them to be hardened by a solution and aging heat treatment.
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Nickel Based Alloys

INDUSTEEL TRADEMARKSUNSASTMEURONORMS ENSUSGOST
UR 600N06600   –2.4816    –   –   –
UR 601N06601   –2.4851 NiCr23FeAl   –   –
UR 825N08825   –2.4858 NiCr21MoNCF 625   –
UR 625N06625   –2.4856 NiCr22Mo9NbNCF 825   –
HASTELLOY® C-22®N06022   –2.4602 NiCr21MoCr14W    –   –
HASTELLOY® C-276N10276   –2.4819    –   –   –

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