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Butt-weld elbow is a steel hot-pressed or forged elbow. Its connection form is to directly butt-weld the elbow and the steel pipe.
Butt-weld elbows can be divided into long-radius butt-weld elbows and short-radius butt-weld elbows according to their radius of curvature;
According to the pressure level, there are about 17 kinds, which are the same as the American pipe standards. Among them, the most commonly used are STD and XS;
According to the angle of the elbow, there are 45 degrees butt welding elbows, 90 degrees butt welding elbows and 180 degree butt welding elbows and other elbows with different angles;
According to the material, there are carbon steel, alloy steel and stainless steel.