321 Stainless Steel Bar (AMS 5645)
Austenitic Stainless Steel Bars
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).
Including titanium reduces chromium carbide formation, resulting in a non-magnetic, high-strength product that suits commercial engineering applications where components are subject to continuous heating or cooling. Typical examples include jet engine components and afterburners. The alloy benefits from impressive mechanical properties and may be easily welded and formed. The suitable operating temperature range is 800°F to 1500°F.
Temperature Performance
While the alloy retains significant strength, toughness, and corrosion resistance at elevated temperatures, its cryogenic performance is equally impressive as an austenitic stainless steel grade. Therefore, 321 stainless is similarly suitable for high-temperature applications such as engine manifolds and low-temperature applications in subsea environments.
Product Suitability
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.
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Discover
- 321
- 1.4541
- UNS S32100
- AISI 321
- AMS 5645
- ASTM A40
- Afterburners
- Expansion joints
- Oil refinery equipment
- Engine manifolds
- High strength
- Excellent intergranular corrosion resistance
- Impressive mechanical properties
- Improved creep and rupture properties
