Specifications of round steel pipes mainly include diameter and thickness. Commonly used diameter specifications are φ6mm, φ8mm, φ10mm, φ12mm, φ16mm, φ20mm, φ25mm, φ32mm, φ40mm and φ50mm, which are widely used in machinery, construction, light industry, metallurgy, chemical industry and other industries 1. Round steel pipes of different diameters are suitable for different application scenarios. For example, round steel pipes below φ25mm are mainly used for low-pressure pipelines and machinery manufacturing, while round steel pipes above φ25mm are suitable for high-pressure pipelines and structural parts manufacturing. Thickness specifications vary according to different diameters. For example, the thickness of round steel pipes of φ6mm-φ10mm is 0.5mm-1.5mm, while the thickness of round steel pipes of φ32mm-φ50mm is 1.5mm-4.5mm. These thickness specifications are suitable for different industries and uses. For example, 0.7mm-1.5mm round steel pipes are mainly used for wire and cable and light industry manufacturing, while 2.0mm-4.5mm round steel pipes are suitable for high-pressure pipelines and structural parts manufacturing.
In addition, material specifications are also an important aspect of round steel pipes. Common materials include:
Carbon steel pipe: The main materials are carbon structural steels such as Q195, Q215, and Q235.
Alloy steel pipe: The main materials are chromium, molybdenum, manganese and other alloy elements such as 16Mn, 15CrMo, and 12Cr1MoV.
Stainless steel pipe: The main materials are stainless steels such as 304, 321, 316L, and 310S.
Aluminum alloy pipe: The main materials are aluminum alloys such as 6061 and 6063.
These round steel pipes of different material specifications are suitable for different environments and conditions. For example, carbon steel pipes are mainly used in general industries and low-pressure pipelines, alloy steel pipes and stainless steel pipes are suitable for special occasions with high temperature, high pressure and strong corrosion, and aluminum alloy pipes are suitable for lightweight manufacturing and high-strength structural parts.
