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Nitronic® 40 is an austenitic manganese stainless steel alloy with additional nitrogen for extra strength.
Nitronic® 40 retains its mechanical properties at elevated and sub-zero temperatures. The material also offers good toughness under these conditions. The product provides low magnetic permeability and is non-magnetic, even at cryogenic temperatures. The alloy exhibits excellent intergranular corrosion resistance. The material is susceptible to stress corrosion cracking (SCC) in hot chloride atmospheres but offers high resistance to stress corrosion cracking in marine environments. The temperature performance of Nitronic® 40 gives the material an advantage over comparable products, giving engineers broader design options.
Nitronic® 40 is weldable using resistance welding and shielded fusion techniques. The material may be machined, but carbide-coated tooling is recommended, while processes should be undertaken at slower speed rates for best results.
Boilers & pressure vessels
Chemical processing equipment
High yield strength
Excellent elevated and cryogenic performance
Excellent intergranular corrosion resistance
Much stronger than 304, 321 & 347 stainless steel
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