316 & 316L Stainless Steel

Properties of 316 & 316L Stainless Steel

316 stainless steel is a molybdenum-bearing austenitic material that exhibits good strength and creep resistance, as well as excellent toughness, mechanical properties, and corrosion resistance, especially in low-temperature applications. Its additional molybdenum content gives 316 stainless steel higher resistance to pitting and crevice corrosion in marine environments and when exposed to high-chloride chemicals and acids. 316L stainless steel is a low-carbon variation, with maximum carbon content of 0.03%. This minimizes harmful carbide precipitation caused by welding, allowing for 316L's use in as-welded condition (with no post-weld annealing) in corrosive applications.

316 Stainless Steel Composition

Element

% Content (316)

% Content (316L)

Carbon

max. 0.08%

max. 0.03%

Phosphorous

max. 0.045%

max. 0.045%

Silicon

max. 1.0%

max. 1.0%

Nickel

10.0 – 14.0%

10.0 – 14.0%

Molybdenum

2.0 – 3.0%

2.0 – 3.0%

Manganese

max. 2.0%

max. 2.0%

Sulfur

max. 0.03%

max. 0.03%

Chromium

16.0 – 18.0%

16.0 – 18.0%

Nitrogen

max.0.1%

max.0.1%

Iron

balance

balance


316 Stainless Steel Hardness

Annealed 316 stainless steel has a Brinell scale hardness of 149, and Rockwell hardness of B80. 316 stainless steel materials cannot be hardened via heat treatment.

Heat Treating 316 Stainless Steel

316 stainless steel can be annealed by heating the material to 1900-2100°F (1038-1149°C) for 60 minutes per inch of thickness and cooling/quenching rapidly. A final annealing temperature of 1950°F will imbue the greatest corrosion resistance. Neither 316 nor 316L stainless steel can be hardened via heat treating.

316 Stainless Steel Machinability

Like all austenitic grades, 316 and 316L stainless steel work harden rapidly; because of this, heavy positive feeds should be considered. To prevent glazing, rigidly supported tools with the heaviest possible cut should be used. Machining 316/316L stainless steel results creates rough, stringy swarf.

Great Lakes Forge & 316 Stainless Steel

Great Lakes Forge provides complete custom forging capabilities for 316 stainless steel and 316L stainless steel. We can deliver forgings up to 6,000 lbs., up to 12' in length, and from 2.5" to 24" in diameter/thickness. Forgings are available in a range of "standard" shapes, including blocks, rectangles, flats, plates, sheets, rounds, discs, sleeves, hubs, spindles, stepshafts, and flat, square, or round bars. We can also provide custom forged shapes.

We offer low to medium volume production and prototyping, all with the industry's fastest turnaround times. We can provide a number of milling and rough turning capabilities to give you forged products that are as close as possible to the intended final shape and size at reasonable cost.

We use our in-house machine shop, quality-controlled heat treating processes, and proven testing capabilities to guarantee quality, consistency, and dimensional accuracy.

In addition to 316/316L stainless steel, Great Lakes Forge can forge over 200 different materials. If you need a specific grade of steel for your project, please don't hesitate to contact us. There's a good chance we have the material you need in our inventory, and if we don't, close relationships with our material providers enable us to bring in the material your project requires quickly and cost-effectively.

Contact Great Lakes Forge for all of your 316 Stainless Steel Forgings today

Request a quote today on 316 stainless steel forgings or contact Great Lakes Forge for more information.


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