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outside or inside diameter and/or wall thickness. The actual dimensions of pipe are usually not the nominal dimensions: A 1-inch pipe will not actually measure 1 inch in either outside or inside diameter, whereas many types of tubing are specified by actual inside diameter, outside diameter, or
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Tubes are essential components in heat exchange systems to assist with cooling down motors and other instruments. Industrial applications use pressure-resistant tubes to safely contain gases and liquids under pressure without leading to air leakage or malfunction. Moreover, devices powered by
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ultrasound often employ special types of thin-walled tubes that can generate vibration when exposed to an electric field. Finally, tube components provide efficient energy conservation in housing insulation materials such as silicon rubber foam insulation and polyethylene foam insulation.
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Drawn-over-mandrel tubing is made from cold-drawn electrical-resistance-welded tube that is drawn through a die and over a mandrel to create such characteristics as dependable weld integrity, dimensional accuracy, and an excellent surface
160:" and "tube" are almost interchangeable, although minor distinctions exist — generally, a tube has tighter engineering requirements than a pipe. Both pipe and tube imply a level of rigidity and permanence, whereas a
268:, copper and stainless steel tubing must be factory pre-cleaned (ASTM B 280) and/or certified as instrument grade. This is due to hydrogen's particular propensities: to explode in the presence of
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1387:1985 Specification for screwed and socketed steel tubes and tubulars and for plain end steel tubes suitable for welding or for screwing to BS 21 pipe threads
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ASTM material specifications generally cover a variety of grades or types that indicate a specific material composition. Some of the most commonly used are:
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There are many industry and government standards for pipe and tubing. Many standards exist for tube manufacture; some of the most common are as follows:
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with a tensile strength of 10 MPa and an 8 mm outside diameter and 2 mm thick walls. The maximum pressure may be calculated as follows:
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There are three classes of manufactured tubing: seamless, as-welded or electric resistant welded (ERW), and drawn-over-mandrel (DOM).
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A213 Standard
Specification for Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, Heat-Exchanger Tubes.
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Pressure max = (Tensile strength * Wall thickness * 2 / (10 * Outer diameter) ) * 10 / Safety_factor [Pa]
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ASTM A269 Standard
Specification for Seamless and Welded Austenitic Stainless Steel Tubing for General Service
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ASTM A513 Standard
Specification for Electric-Resistance-Welded Carbon and Alloy Steel Mechanical Tubing
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is usually portable and flexible. A tube and pipe may be specified by standard pipe size designations,
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ASTM A270 Standard
Specification for Seamless and Welded Austenitic Stainless Steel Sanitary Tubing
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ASTM A511 Standard
Specification for Seamless Stainless Steel Mechanical Tubing
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ASTM A554 Standard
Specification for Welded Stainless Steel Mechanical Tubing
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153:) or to protect electrical or optical cables and wires.
53:. Unsourced material may be challenged and removed.
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416:"API 5L Grade B seamless tube PSL1 & PSL2"
141:, is a long hollow cylinder used for moving
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113:Learn how and when to remove this message
276:of metals, particularly under pressure.
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381:Materials used in water supply systems
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331:Gives bursting pressure of 5 MPa.
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309:= 2 millimeters (0.07874 in)
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18:Hollow structural section
280:Calculation of strength
264:In installations using
451:Steeltubeinstitute.org
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396:Tube and pipe benders
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315:= 10 * 1000000 [
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471:Tubing (material)
325:Bursting pressure
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238:British Standard
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45:Please help
40:verification
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297:millimeters
177:Manufacture
156:The terms "
460:Categories
403:References
73:newspapers
208:Standards
193:extrusion
103:July 2008
359:See also
334:Using a
266:hydrogen
203:finish.
170:nominal
147:liquids
87:scholar
466:Piping
391:Piping
270:oxygen
260:MT 506
257:MT 403
254:MT 304
251:TP 316
248:TP 304
143:fluids
139:tubing
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151:gases
137:, or
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386:Pipe
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166:e.g.
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66:news
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