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Type 321 austenitic stainless steel bars are stabilised with titanium in the alloying process, resulting in an engineering material which offers excellent resistance to intergranular corrosion in the heat-affected zone (HAZ).
While the alloy retains significant strength, toughness and corrosion resistance at elevated temperatures, as an austenitic stainless steel grade, cryogenic performance is equally impressive. Therefore, 321 stainless is similarly suitable for high-temperature applications such as engine manifolds and low-temperature applications in sub-sea environments.
321 stainless steel should be considered for applications which require freedom from intergranular corrosion in moderately corrosive environments. General atmospheric and oxidation resistance is excellent, similar to Type 304 and even better once annealed and subjected to elevated temperature service. The product also provides improved creep and stress rupture characteristics when compared to 304 stainless steel.
Oil refinery equipment
Excellent intergranular corrosion resistance
Impressive mechanical properties
Improved creep and rupture properties
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