SS 431, or Stainless Steel 431, is a martensitic stainless steel alloy that contains chromium and nickel, along with carbon, manganese, and silicon. It is known for its good strength, corrosion resistance, and high toughness compared to other martensitic stainless steels, making it suitable for applications where both strength and resistance to corrosion are important.
Cutting facility available 400 mm
Available - Round & Flat
Composition : Chromium(Cr) , Nickel (Ni), Carbon (C), Manganese (Mn), Silicon (Si), Phosphorus (P)
Mechanical Properties : Typically between 550-850 MPa, providing strong structural support. Can be hardened by heat treatment, with a hardness range of 200-250 HB (Brinell Hardness).
Corrosion Resistance : SS 431 offers moderate corrosion resistance, which makes it suitable for use in moderately corrosive environments. While it is not as resistant to corrosion as austenitic grades like SS 304 or SS 316, it performs well in atmospheres with limited exposure to chloride-containing environments and is resistant to oxidation at higher temperatures.
Magnetic Properties : Being a martensitic steel, SS 431 is magnetic, unlike austenitic stainless steels, which are generally non-magnetic.