February 24, 2022

What are the differences between 303, 304, and 316 stainless steel nozzles?

What we usually call a stainless steel nozzle is a nozzle made of stainless steel. Because stainless steel material has the characteristics of high strength, not easy to rust, resistant to air, water, acid, alkali and salt corrosion, etc., stainless steel nozzles are widely used in papermaking, machinery, electronics, automobiles, power plants, environmental protection, chemicals, food, pharmaceuticals, plumbing, Fire and other industries.


Basically all nozzles are made of stainless steel. Like solid cone nozzles, hollow cone nozzles, fine water mist nozzles, fan nozzles, etc. The stainless steel nozzles we generally use are basically 303, 304, and 316. Among them, 303 and 304 are two commonly used materials. 303 stainless steel nozzle is a basic nozzle, 304 nozzle has the characteristics of low temperature resistance, and is mostly used in the food industry and feed industry. For example, the addition of food additives, the addition of trace elements in the feed industry, etc.

So what are the differences between 303, 304, and 316 stainless steel nozzle materials? 303 is a free-cutting stainless steel containing sulfur and selenium, respectively, and is used in applications where free-cutting and high surface finish are mainly required. 304: A widely used steel with good corrosion resistance, heat resistance, low temperature strength and mechanical properties; good hot workability such as stamping and bending, no heat treatment hardening phenomenon (non-magnetic, operating temperature -196 ℃ ~ 800 ℃) °C). 316: Due to the addition of Mo, its corrosion resistance, atmospheric corrosion resistance and high temperature strength are particularly good, and can be used under harsh conditions; good work hardening, non-magnetic, suitable for seawater equipment.

Therefore, when customers choose the material of stainless steel nozzle, they should choose it according to the purpose and the specific characteristics of these materials.

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