3CR12 Stainless Steel Strip

3CR12 is a chromium containing corrosion resisting ferritic steel developed as an alternative material of construction where the mechanical properties, corrosion resistance and fabrication requirements of other materials such as mild steel, galvanised or aluminised steel, aluminium or pre-painted steels are unsuited.

Can be used as bolster material on a knife.

Sizes:

  • 3mm x 25mm x 300mm
  • 3mm x 100mm x 300mm

R35.00R105.00

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Description

Grade 3CR12 is a low-cost grade chromium, containing stainless steel fabricated by modifying the properties of grade 409 steel. It resists mild corrosion and wet abrasion. It was originally developed by Columbus Stainless, which designated the registered trademark “3CR12”

ANNEALING
Annealing is achieved by heating to between 700°C and 750°C for 90 minutes per 25mm thickness followed by air cooling. Controlled atmospheres are recommended in order to avoid excessive oxidation of the surface.

STRESS RELIEVING
3CR12 can be stress relieved at 600°C to 650°C for 90 minutes per 25mm thickness.

HOT WORKING
3CR12 can be readily forged, upset and hot-headed. Uniform heating of the steel in the range of 1 100°C to 1 200°C is required. The finishing temperature should not be below 800°C. Upsetting operations require a finishing temperature between 900°C and 950°C. Forgings should be air-cooled. All hot working operations should be followed by annealing, pickling and passivating to restore the mechanical properties and corrosion resistance.

Additional information

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Size

3mm x 100mm x 300mm, 3mm x 25mm x 300mm