How to distinguish whether stainless steel is 304 or 316?
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304 stainless steel VS 316 chemical composition:
304 stainless steel mainly contains 18% chromium and 8% nickel, and does not contain molybdenum; while 316 stainless steel contains 2% molybdenum in addition to 18% chromium and 10% nickel.
304 stainless steel VS 316 corrosion resistance:
Due to the molybdenum element, 316 stainless steel performs better in chloride-containing environments, especially in media with high chloride ion content.
304 stainless steel VS 316 price:
Due to the higher alloy content and higher production cost of 316 stainless steel, its price is usually more expensive than 304 stainless steel.
304 stainless steel VS 316 application areas:
304 stainless steel is widely used in household goods, building decoration and other fields; while 316 stainless steel is more used in medical equipment, chemical equipment, marine environment and other more demanding occasions.
Comparison of the magnetism of 304 and 316 stainless steel
Magnetism of 304 stainless steel: 304 stainless steel is an austenitic stainless steel and is generally considered to be non-magnetic or only weakly magnetic.
Magnetism of 316 stainless steel: Similar to 304 stainless steel, 316 stainless steel is also an austenitic stainless steel and is generally non-magnetic. The molybdenum and higher content of nickel added to its alloy composition mainly improve its corrosion resistance and high temperature strength without affecting its magnetic properties.
Professional testing: When tested with professional stainless steel potion, the surface of 304 stainless steel will show a certain red color, while 316 stainless steel may appear black.
