Alloy elbow

Alloy elbow materials: 16Mn, 15CrMoG, 12Cr1MoVG, 12Cr2MoG, 15Ni1MnMoNbCu, 15NiCuMoNb5-6-4, 10Cr9Mo 1VNbN, ASTM A335, P22, ASTM A234 WP22, ASTM A213 T22, etc

Executive standards: GB/T12459-2017, GB/T13401-2017, SY/T0510-2012, SH/T3408-2012, etc

Alloy elbow is mainly used as a connecting pipe fitting in pipeline installation, and is used for connection at pipe bends. Connect two pipes with the same nominal diameter to make the pipe turn at 90 ° or other angles

Alloy elbow is a general term for a variety of elbows, with various materials, such as carbon steel, manganese steel, nickel steel, etc

Alloy elbow is widely used. Ordinary bronze alloy elbows are common in general water pipes, but with the improvement of living standards, many water pipes are converted to stainless steel elbows. Alloy elbows made of manganese steel are usually used in concrete pipelines, slurry pipelines and other pipelines with serious wear consumption due to the excellent performance of manganese steel in withstanding impact, extrusion, material wear, etc. However, the high manganese steel alloy elbow is used in the pipeline with intense fluid flow and strong impact; Alloy elbow made of nickel steel is usually used in normal temperature transmission pipeline with good concentration of oxidizing acid (nitric acid, sulfuric acid), but it will be severely corroded in transmission pipeline with reducing acid (hydrochloric acid, dilute sulfuric acid, etc.), unless the concentration of hydrochloric acid is very low; Martensitic alloy elbow has high high temperature strength, oxidation and water vapor corrosion resistance below 650 ℃, but its weldability is poor. Therefore, it is often used in high-temperature steam transmission pipeline and water gas pipeline