Does JCM Use 316 or 316L? JCM’s design and fabrication process, along with the performance expectations of the fi tting, determines the types and grades of material and components that are incorporated according to their fabrication suitability. • 316(L) stainless steel is commonly made up of 16% chromium, 10% nickel and 2% molybdenum. It is the added molybdenum content that increases corrosion resistance and enhances resistance to pitting (over 304(L) stainless steel). • 316 “L” Stainless Steel is the designation for “Low Carbon” meaning it has less carbon content than 316. Lower carbon content in 316L reduces adverse carbide formation (a result of heating during welding). The 316 and 316(L) Stainless Steel are similar in corrosion resistance when installed in harsh applications (both environment and line content). The 316(L) stainless steel is often used in heavy-gauge welded products because of the lower carbon content which improves wedability. The 316(L) materials reduces the threat of corrosion in the heat- a ff ected zone in oxidizing environments. Another form of 316(L) stainless steel used by JCM is the CF8M (equal to 316 stainless). Cast stainless steel lugs are incorporated into the all 316 stainlesss steel Universal Clamp Couplings (6130 Series). These castings will provide the expected service life of other wrought 316(L) material. For cost and availability purposes, JCM incorporates the 316 material in the fl ange and bolt components. These components can be furnished in 316(L) in specialty ordered products, and the price and delivery time will re fl ect that change. The 316 stainless steel bolting hardware, which is not (L) grade, is a minute factor as the fi nished bolts, nuts and washers are not exposed to welding processes or other manufacturing practices. This process and combination of material grades allows the fi nished pipe fi tting component to provide overall corrosion resistance, remain economic and readily available. 316(L) stainless steel is highly corrosion resistant, and is a preferred material for heat exchangers, chem- ical processing equipement, pipe fi ttings & valves and pump parts, in a variety of process industries. It is preferred in coastal/marine applications where 304(L) would su ff er from chloride attack.
Contact JCM Industries for speci fi c product information at Toll Free at 1-800-527-8482, Outside U.S. 1-903-832-2581
sales@jcmindustries.com www.jcmindustries.com
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