stainless steel fastener 304 S30400 expansion bolt
304 is chromium-nickel austenitic stainless steel. Better corrosion resistance than Type 302. High ductility, excellent drawing, forming and spinning properties. Inherently non-magnetic, it becomes slightly magnetic when cold worked. Low carbon content means less precipitation of carbides in the heat affected zone during welding and less susceptibility to intergranular corrosion.
“AISI 304 (1.4301) is a widely used chrome-nickel austenitic stainless steel. It has excellent drawability and very good formability, while also having a high degree of corrosion resistance. Typical uses for 304 stainless steel They include sinks, kitchen equipment such as pans, plumbing, etc.
All stainless steels contain varying levels of a mixture of iron and chromium. But the exact combination, and other additions, is what makes the difference between the grades.”