What’s The Difference Between 304 And 316 Stainless Steel

Physical Properties and Different Of 304 And 316 Stainless Steels

The working temperature of 304 stainless steel is below 800 掳C,聽 the working temperature of 316 stainless steel is below 1000 掳C.


Chemical component of stainless steel 304 series and 316 series


Types C max Mn max P max C max Si max Cr Ni Mo other
304 0.08 2.0 0.045 0.03 1.0 18-20 8-12 ?
304L 0.03 2.0 0.045 0.03 1.0 18-20 8-12
316 0.08 2.0 0.045 0.03 1.0 16-18 10-14 2-3
316L 0.03 2.0 0.045 0.03 1.0 16-18 10-14 2-3 ?

1. The hardness of stainless steel 316 and 304 is almost indistinguishable, but the corrosion resistance of 316 is better than 304.

2. 316 is a type of molybdenum containing stainless steel. 316 stainless steel also has good chloride attack properties when the concentration of sulfuric acid is below 15% and above 85% under high temperature conditions. Its corrosion resistance is better than 304 stainless steel. 316 stainless steel has good corrosion resistance in the production process of papermaking, and 316 stainless steel is also resistant to the erosion of marine and aggressive industrial atmosphere.

316 stainless steel has good oxidation resistance in intermittent use below 1600 掳C and continuous use below 1700 掳C.

It is best not to continuously apply 316 stainless steel in the range of 800-1575 degrees, but when 316 stainless steel is continuously used outside this temperature range, the stainless steel has good heat resistance.

316L stainless steel has better carbide precipitation resistance than 316 stainless steel and can be used in the above temperature range.

3, 316 stainless steel is widely used in industry, hardware, electronics, metallurgy industry and many ways. Because there are many problems that need to be solved, including price and raw material issues. Therefore, this high-energy product is as complicated as a capillary tube, and the price of each component of a multi-element component is very expensive, which is why the 316 stainless steels are more expensive than the 304 stainless steels.

Both 304 and 316 stainless steel can be processed into sanitary pipe fittings, sanitary valves, etc., so the material can be selected to maximize the benefit by combining actual conditions.