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A tube/tubing is similar to that of a pipe and is also used to convey liquids and gasses. But a tube can also be used to protect electrical and optical cables. A tube is literally specified by its inner and outer diameter. Tubes are manufactured in three types seamless, electrically welded and drawn-over-mandrel. Pipes and Tube are generally interchangeable terms but they have defined specific purposes different from one another.
• Seamless tubing is made via extrusion and rotary piercing
• An electrical-resistance-welding tube is cold worked and drawn through a die and over a mandrel
Tube manufacturing is governed under different standards applicable for different types of tubes: -
• ASTM A213 For Seamless Ferritic and Austenitic alloy tubes for high temperature applications
• ASTM A269 Seamless and Welded Tubes for general applications
• ASTM A511 for Seamless Stainless Steel for mechanical applications
• ASTM A270 for Seamless and Welded tubes for sanitary applications
• ASTM A513 for Electrical-Resistance-Welded Carbon and Alloy Steel tubes for mechanical applications
• ASTM A554 For welded Stainless Steel tubes for mechanical applications
Tubes can be used in a variety of applications ranging from basic home applications to exotic applications as well. Mostly used in: -
• Oil & Gas Industries
• Heat Exchangers
• Paper & Pulp Industries
• Pharmaceutical Manufacturing Industries
• Chemical Processing Industries
• Water Treatment Industries
• Sugar & Food Processing industries
• Fertilizer Industries
• Power Plants
Steel tubes are typically made through a process of extrusion, welding, or drawing.
Metal tubing can be purchased from many online and physical retailers.
The weight of steel tube depends on its size and thickness.
Metal tubing can be bent by using a heat based method such as induction bending, or a cold-forming technique such as rotary draw bending.
Most metal tubes are recyclable, depending on the material and shape of the tube.