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Properties of Stainless Steel

Stainless Steel

Properties and areas of application

Stainless steel has different corrosion properties which also includes being a non-corrosive, rust-resistant steel, which is simply designated as stainless steel. In comparison with aluminium, stainless steel is approximately 3 times heavier.

Stainless steel – what is it?

Stainless steel, like steel itself, is an alloy. An alloy always consists of different materials. Among the most frequent alloying elements in non-corrosive stainless steel is chrome, where nickel, molybdenum and further elements are used for special requirements.

The magnetisability, as well as the corrosion resistance, are two of these requirements which are controlled by the different alloys.

Stainless steel – properties

Steel with a chromium content of more than 10.5%, as well as various other elements in smaller quantities, is considered to be stainless. In combination with oxygen chromium forms a thin, sealed, fixed-adhering, chromic-oxide layer – the so-called passive layer. It is exactly this passive layer which is responsible for the resistance of the material. Due to its corrosion resistance, the metal is used for example for washing drums.
Rust-resistant stainless steel can be very well compared to anodised aluminum with regard to its properties. If the exterior skin of the material is impaired, the material and its surface mostly suffer damage.

Stainless steel – areas of application

  • Vehicle construction
  • Medical technology
  • Building trade
  • Aircraft construction
  • Catering industry
  • Tanker manufacture
  • Vessel manufacture

Grades stocked:

304 / 1.4301
Grade 304 / 1.4301 (European reference – 1.4301) has good corrosion resistance and good formability. Grade 304 is non-magnetic.

316 / 1.4401
Grade 316 (European reference – 1.4404) has excellent corrosion resistance and good formability. Grade 316 is non-magnetic.

430 / 1.4016
Grade 430 (European reference – 1.4016) is a low cost stainless steel. It fabricates well. Grade 430 is magnetic.

409 / 1.4512
Grade 409 (European reference – 1.4512) Is a stainless steel grade suitable for elevated temperature applications such as exhaust system parts. Grade 409 is magnetic and fabricates well.

304L / 1.4307
Grade 304L / 1.4307 (European reference – 1.4301) has good corrosion resistance and good formability. Grade 304 is non-magnetic.

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