321 Stainless Steel Fasteners Specifications

The high resistance of 321 grade stainless steel to intergranular corrosion at 427°C to 816°C during chromium precipitation was a driving factor in its creation. The formation of chromium carbides is prevented in 321 stainless steel fasteners thanks to the addition of titanium to the alloy. Because of their high creep and stress rupture strength, as well as their resistance to intergranular corrosion, SS 321 socket cap screws are well suited for high temperature applications. Fasteners made of 304L grade stainless steel can only be used up to 426°C, while those made of 321 grade stainless steel can be used up to 816°C. Bolts made from SS 321 and 304 share a similar resistance to corrosion. Erosion in just one spot. However, the alloy's general resistance to corrosive media may be diminished by prolonged heating in the chromium precipitation range of 321 degrees. Bolts made of stainless steel 321 are just as vulnerable to stress corrosion cracking as those made of ss 304 in the presence of halide compounds.

Strength: 321 stainless steel bolts have excellent resistance to creep and stress cracking in addition to their high tensile strength. They provide fastening options that are dependable and long-lasting.

Applications: 321 stainless steel bolts have excellent resistance to creep and stress cracking in addition to their high tensile strength. They provide fastening options that are dependable and long-lasting.

Weldability: Standard welding methods, including TIG (tungsten inert gas) and MIG (metal inert gas), can be used to weld 321 stainless steel bolts. High heat input during welding, however, can cause carbides to form, lowering the joint's resistance to corrosion.

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