Comparison Between Stainless Steel 304, 316 & 316L

Stainless Steel Material

Chemical Component(%)

Corrosion Resistant Property

Physical and Chemical Property

Feature 

Application 

S30408

 (SUS304) 

06Cr19Ni10

C≤0.08;

Si≤0.75;

Mn≤2.00;

P≤0.040;

S≤0.030;

Ni: 8.00-11.00;

Cr: 18.00-20.00

Resistant to reducibility salt, inorganic acid and alkali, salt.

Excellent property of corrosion resistant, heat resistant, low temperature strength and mechanical property, no heat treatment harden, nonmagnetic.

Normal corrosion resistant steel and heat resistant steel.

Drinking water, cold and hot water, fuel gas, medical gas, household objects, cabinet, indoor pipeline, water heater, boiler, bathtub, auto spare parts, medical instruments, building material, chemistry, food, agriculture, shipping.

S31608 

(SUS316) 

06Cr17Ni12Mo2

C≤0.08;

Si≤0.75;

Mn≤2.00;

P≤0.040;

S≤0.030;

Ni: 10.00-14.00;

Cr: 16.00-18.00;

Mo: 2.00-3.00

Excellent property of corrosion resistant and high temperature strength resistant, can use under harsh environment.

Excellent corrosion resistant, plasticity, toughness, high temperature strength, and welding technology.

Good corrosion resistant, high temperature strength, and welding property.

Drinking water, cold and hot water, fuel gas, medical gas, seawater equipment, chemistry, fuel, paper making, oxalic acid, fertilizer equipment, photograph, food industry and coastal equipment.

S31603 

(SUS316L) 

022Cr17Ni12Mo2

C≤0.030;

Si≤0.75;

Mn≤2.00;

P≤0.040;

S≤0.030;

Ni: 10.00-14.00;

Cr: 16.00-18.00;

Mo: 2.00-3.00 

Its corrosion resistance property is better than SUS316, but high temperature strength is inferior, can use under harsh environment.

Excellent corrosion resistance, strength, plasticity, toughness, cold mold ability and cryogenic property.

Its corrosion resistance property is better than SUS316, but high temperature strength is inferior.

Drinking water, cold and hot water, fuel gas, medical gas, seawater equipment, chemistry, fuel, paper making, oxalic acid, fertilizer equipment, photograph, food industry and coastal equipment.