The difference between ASTM A53 and A795 steel pipe

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Update time : 2024-08-27 08:52:58

  ASTM A795 and ASTM A53 steel pipe are all steel pipes produced in accordance with the standards of the American Society for Testing and Materials (ASTM International). These two types of pipes can all be suitable for firefighting pipes and can also be produced by electric resistance welding, but they are slightly different.

  Electric-Resistance-Welding is a manufacturing process and technology that uses heating to join metal or other thermoplastic materials such as plastics. After the workpieces are combined, pressure is applied through electrodes and the resistance heat generated by current passing through the contact surface of the joint and adjacent areas is used for welding. Methods.

  The main difference is that ASTM A135 steel pipe is produced using the resistance welding process only. In contrast, the ASTM A795 standard applies to both welded and seamless steel pipes. As for the ASTM A53 standard, it covers three different manufacturing technologies: continuous butt welding (Type F), resistance welding (Type E), and seamless steel pipe (Type S).

  ASTM A795/A795M-21 is a standard specification for black and hot-dipped zinc-coated (galvanized) welded and seamless steel pipe for fire protection use.ASTM A53/A53M-22 is a standard specification for pipe, steel, black and hot-dipped, zinc-coated, welded and seamless variations. This metal pipe is suitable for mechanical and pressure applications and can also be used for steam, water, gas and Common uses of air ducts.

4.ASTM A795 vs A53 Pipe

Feature ASTM A795 ASTM A53
Application Fire sprinkler systems General purpose (pressure piping, structural, mechanical)
Material Black and hot-dipped galvanized steel Steel (may or may not be coated)
Strength Narrower range of grades Wider range of grades (potentially higher strengths)
Corrosion Resistance Typically hot-dip galvanized May or may not be coated
Cost Slightly more expensive (due to galvanizing) Less expensive (uncoated)

  In addition, ASTM A53 standard welded steel pipe needs to be hydrostatically tested to ensure its integrity. The ASTM A795 standards provide alternatives, allowing non-destructive testing methods, such as eddy current testing or ultrasonic testing, to replace traditional hydrostatic testing.Steel pipe factory provides various standard steel pipes [email protected].

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