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You are here:   Home Welded pipes PN-EN 10217-6 ||| Welded steel tubes for pressure purposes; submerged arc welded non-alloy steel tubes with specified low temperature properties

PN-EN 10217-6 Welded steel tubes for pressure purposes; submerged arc welded non-alloy steel tubes with specified low temperature properties

PN-EN 10217-6

Title:

Welded steel tubes for pressure purposes – Technical delivery conditions -- Part 6: Submerged arc welded non-alloy steel tubes with specified low temperature properties

Scope of the standard:

The standard specifies the technical delivery conditions for circular submerged arc welded pipes with specified low temperature properties manufactured of non-alloy steels. It specifies the requirements for taking samples and the methods of testing.

Circular welded pipes manufactured of non-alloy steel with specified low temperature properties. / from 406,4 to 2540 mm /

Steel grades: P215NL and P265NL  

Two testing categories are also distinguished in this case:

  • TC1
  • TC2

which differ with respect to the test type and, most of all, with the fact that ultrasound testing is introduced in the case of the TC2 group.

Pipe manufacturing stages and delivery conditions:

  • Hot rolled or normalized sheets or strips, cold forming, SAW welding and normalization or without further thermal processing
    forming with normalization, SAW welding without further thermal processing

 

Mandatory tests
for the TC1 category for the TC2 category
Ladle analysis
Tensile testing of the base material in room temperature
Tensile testing of the weld in room temperature for D>=508 mm
Resilience testing of the base material in low temperature
Bend testing of the weld
Resilience testing of the weld in low temperature
Tightness testing
Dimension verification
NDT of the weld
  NDT of the base material in order to identify delamination
  NDT of pipe ends in order to identify delamination
  NDT of sheet edges and strips in order to identify delamination
Additional tests
Check analysis
Wall thickness measurement at a distance from pipe ends