Elbows are split into three groups, which define the distance over which they change direction. Commonly, according to the distance of direction changing, the elbows are divided into the following three kinds: Short Radius Elbow （SR Elbow）, Long Radius Elbow （LR Elbow, Customized Radius Elbow.
Based on the angle change of the elbow direction, the elbows also are divided:90 degree elbow, 45 degree elbow,180 degree elbow(return elbow), Elbows in any degree.
With an extensive carbon steel inventory, Sinhoo Pipeline carries a wide range of carbon steel elbow in a variety of sizes and pressure ratings to meet your project’s needs—including hard-to-find configurations and sizes.
We supply carbon steel elbows of different standards(ASTM, ASME, NACE, MSS).
Generally also contain small amounts of silicon, manganese, sulfur, phosphorus and carbon steel, in addition to carbon use can be divided into carbon steel and carbon structural steel, carbon tool steel, and ease of cutting structural steel three categories. Carbon structural steel is divided into building structural steel and machinery manufacturing structural steel two kinds.
According to the carbon steel, carbon content can be divided into low-carbon steel (WC ≤ 0.25%), medium carbon steel (WC0.25% - 0.6%) phosphorus, sulfur content and high-carbon steel (WC> 6%) can be divided into ordinary carbon steel (containing phosphorus, sulfur higher), high-quality carbon steel (containing phosphorus, low sulfur) and high quality steel (phosphorus, sulfur less), generally, the higher carbon content, the higher the hardness, higher strength but lower ductility.