Industrial SK-38-SO

Alaskan SK-38-SO stainless steel slip-on stub end is a heavy-duty butt-w welding accessory designed to slip onto light-wall ID tubing and be welded in place, with a machined face that provides dependable gasket seating and a thick cross section for strength and dimensional stability. It is cast in CF-3M (316L) and 317L or forged in 316-L, and is typically used with Alaskan SK-39-SO steel backing flanges (the SK-38-PSO variant pairs with SK-39-PSO flanges). The slip-on design enables easy length adjustment and precise fit-up prior to welding, while the material thickness adds reinforcement to the joint. SK-38-SO accommodates tube ODs ranging from 2 in to 36 in, with corresponding lap diameters and bore/length specifications that vary by size to match common piping configurations. These stub ends are part of a compatible system intended for stainless piping where gasket seating, alignment, and robust joint construction are critical.