316 vs 316L Stainless Steel, Difference Between SS316 and SS316L

SS316 vs 316L Stainless Steel

AISI 316 vs 316L Stainless Steel

Both AISI 316 vs 316L stainless steel are molybdenum (Mo) containing stainless steel grades. AISI 316 and 316L are American steel grades, SUS 316 and SUS 316L are Japanese stainless steel grades.

The main difference between 316 vs 316L stainless steel is the level of carbon content, SS316 has a 0.08% max carbon content while SS316L has a 0.03% max carbon content. Since SS 316L has a lower carbon content than SS316, the welding of 316L stainless steel is better than SS 316.

316L stainless steel can be used in applications where annealing cannot be performed after welding and maximum corrosion resistance is required.

Difference Between SS316 and SS316L Chemical Composition

SS316 and SS316L Chemical Composition (%)

SS316 vs SS316L Mechanical Properties

SS316 vs SS316L Mechanical Properties
GradeYield Strength (Mpa)Tensile Strength (Mpa)Elongation (%)Density (g/cm3)HBHRBHV

1 MPa = 1 N/mm2

The molybdenum (Mo) content of SS 316L stainless steel is slightly higher than that of SS 316 stainless steel. Because of the molybdenum content in the steel, the overall performance of the steel is better than that of SS310 and SS304 stainless steel. Under high temperature conditions, when the concentration of sulfuric acid is lower than 15% and higher than 85%, 316 stainless steel has a wide range of uses. SS316 also has good resistance to chloride attack and is therefore commonly used in the marine environment.

On the basis of 316, many steel types were also developed. For example, after adding a small amount of titanium (Ti), SS 316Ti stainless steel was derivatized. 316N was derivatized after adding a small amount of nitrogen (N), SS 317L was derivatized from the addition of nickel (Ni) and molybdenum (Mo).

Tags: ss316 vs ss316l, 316 vs 316l stainless steel, difference between ss316 and ss316l


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