B-Line Eaton series strut channel, 1.62" channel height, 240" channel length, 1.62" channel width, Steel, 12 Gauge, B22 channel type, Stainless steel

The B22-240SS6 is built as steel with a stainless steel type 316 designation, in 12 gauge. Type 316 is the marine/chemical grade of stainless, so it is the one specified where chlorides, washdown, or coastal air would pit standard galvanized strut. If your run is indoors and dry, a plain or pre-galvanized B22 does the same mechanical job for less material cost.

Yes. Pairing carbon steel or zinc-plated nuts and fittings with type 316 channel sets up galvanic corrosion at every connection, which defeats the reason you bought stainless. Match the hardware to the channel: 316 stainless channel nuts, spring nuts, brackets, and bolts. The strut itself ships as bare channel, so fittings, nuts, and anchors are separate line items.

Order by manufacturer part number B22-240SS6, Eaton B-Line series strut channel. The suffix breaks down as B22 channel type, 240 inch length, SS6 for stainless type 316.

12 gauge is the standard commercial strut thickness and it is what B22 is formed from here, in the full 1.62 inch deep profile rather than a shallow channel. For heavier spans, the usual step up is doubling the channel back to back rather than changing gauge. Any load figure has to come off Eaton's published span and load tables for the B22 profile in stainless, since stainless values differ from carbon steel.

B22 in type 316 stainless is the channel specified for wet, coastal, and corrosive duty: pool and natatorium equipment rooms, wastewater plants, food processing washdown areas, chemical rooms, and exterior rooftop pipe and conduit racks near salt air. In dry interior electrical and mechanical rooms, a plain or pre-galvanized B22 covers the same mounting job.