Stainless Steel 316L

Principal Design Features

316L is often substituted for 316 stainless due to its superior weldability with no appreciable difference in price or properties. It combines good availability in all forms and size ranges with great strength and corrosion resistance.


Components used in marine environments and chemical equipment. Suitable for any application where 316 stainless is used and stronger welds are desirable.


Low speeds and constant feeds will minimize this alloy’s tendency to work harden. Tougher than 304 stainless with a long stringy chip, the use of chip breakers is recommended. Many companies now offer premium machinability grades, such as CarTech with their Project 70 and 7000 series.


All common fusion and resistance methods except oxyacetylene welding have proven successful. Use AWS E/ER 316L filler metal for best results.

Hot Working

All common hot working processes are possible with this alloy. Heat to 2100-2300 F (1149-1260 C). Avoid working this material below 1700 F (927 C). For optimum corrosion resistance, a post-work annealing is recommended.

Cold Working

Shearing, stamping, heading and drawing can be successfully performed . To remove internal stresses, a post-work annealing is recommended.


1850-2050 F (1010-1121 C), followed by rapid cooling.


This alloy does not respond to heat treatment. Cold work will cause an increase in both hardness and strength.

Density: 0.29

Specific Gravity: 7.9

Specific Heat: 0.12

Electrical Resistivity: 444

Melting Point: 2550

MoETensile: 28


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