Carbon steel elbow is a kind of connector commonly used in pipeline system, with small bending radius, wide Angle range, low production cost, is widely used in petroleum, chemical industry, electric power, metallurgy, medicine and other fields. In recent years, carbon steel elbow in the material, process, manufacturing standards and other aspects have had different degrees of development, the following will be a detailed introduction to its development in recent years.
First, the material
1. High-strength carbon steel
In recent years, with the increasing requirements of engineering construction for pipeline systems, the strength of carbon steel elbows has also been improved. High strength carbon steel elbow with high strength, high hardness, high wear resistance and other characteristics, can be used to withstand greater pressure and temperature changes. For example, ASTM A234 WPB, ASTM A420 WPL6 and other standards in the United States have begun to use high-strength carbon steel as the manufacturing material for elbows.
2. Anticorrosive carbon steel