316 stainless steel grade is more resistant to atmospheric and other mild types of corrosion than that of other austenitic stainless steel grades, such as 303, 304, 321 and 310. As a molybdenum bearing stainless it is considerably more resistant to solutions of sulphuric acid and phosphoric acid than that of other austenitic grades. 316 has a better resistance to pitting corrosion and stress corrosion cracking in chloride solutions to that of other non molybdenum bearing stainless steel grades.


Used widely in industries such as chemical, construction, aerospace and automotive. Typical applications are exhaust manifolds, heat exchangers, bellows, oil refinery equipment, marine equipment, pulp paper and textile processing equipment.


Stainless steel 316 is readily weldeable with most welding procedures. Oxyacetylene welding is not recommended due to possible carbon pick up in the weld area. With its lower carbon content 316L stainless is preferred to standard 316 as it can be welded without loss of corrosion resistance due to intergranular carbide precipitation. Post weld annealing is not normally required, except for service in more extreme conditions. We recommend you contact your welding consumables supplier who should provide you full assistance and information on welding stainless steel.

Heat the 316 slowly and uniformly throughout the section to 1150-1200°C. Re heat as necessary and avoid working below 900°C. Cool in air. Forgings will require annealing in order to obtain optimum corrosion resistance.

Chemical Composition

Steel Grades C Mn Si P S Cr Mo Ni
316L 0.08% max
2.00% max
1.00% max
0.03% max
0.03% max
16.00-18.00%
2.00-3.00%
10.00-14.00%

Physical Properties

Steel Grades
Temp °C
Density 
Kg/m³
Mean Coefficient
of Thermal Expansion
Modulus of Elasticity
kg/mm

Electrical Resistivity
Ωmm²/m

Specific Heat Capacity
kcalºC

316L
20 9.00

16.5*10^6

20000
0.75 0.105