Engineering Steel is a steel that has had small amounts of one or more alloying elements (other than carbon) such as such as manganese, silicon, nickel, titanium, copper, chromium and aluminum added. This produces specific properties that are not found in regular carbon steel.
Engineering Steels are workhorses of industry because of their economical cost, wide availability, ease of processing, and good mechanical properties. Alloy steels are generally more responsive to heat and mechanical treatments than carbon steels.
Stainless steel square tube 316/316L (or stainless square hollow section) is a square shaped 316/316L stainless steel alloy tube.
316 stainless steel alloy is a standard molybdenum-bearing grade, the second most commonly sought after grade next to grade 304 amongst the austenitic stainless steels.
The molybdenum gives 316 better overall corrosion resistant properties than Grade 304, particularly higher resistance in chloride environments.
Grade 316L (L= low carbon) ) is the same as 316 except it has an extra-low-carbon analysis, the advantage of which is that it precludes any harmful precipitation in the 800º F to 1500º F range that might result from welding heavier sections. Therefore 316L is extensively used in heavy gauge welded components.
Typically there is no price difference between 316 and 316L stainless steel.
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Stainless Steel Square Tube 316/316L
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