The Allegheny 40112D is a 4-inch steel long radius belled bend with a 30-degree angle for tank trailer piping applications. This welded-style fitting features belled ends that provide better piping alignment and faster installation compared to traditional butt-welded fittings. Constructed from 16-gauge steel with a 6-inch long radius, the 40112D offers durable performance for tank trailer piping systems requiring steel construction.