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You are here:   Home Welded pipes PN-EN 10217-4 ||| Electric welded non-alloy steel tubes with specified low temperature properties

PN-EN 10217-4 Electric welded non-alloy steel tubes with specified low temperature properties

PN-EN 10217-4


Welded steel pipes for pressure purposes – Technical delivery conditions -- Part 4: Electric welded non-alloy steel tubes with specified low temperature properties

Scope of the standard:

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

Circular welded pipes manufactured of non-alloy steel with specified low temperature properties./ from 10,2 to 508 mm /

Steel grades: P215NL and P265NL

 

Pipe manufacturing stages and delivery conditions:

  • Normalized rolled strip, cold forming, welding and weld or pipe normalization
  • Hot rolled or normalized strip
    cold forming , welding and normalization
    cold forming , welding and hot reduction and normalization
    cold forming , welding and hot reduction in the temperature adequate to obtain the normalized state

 

 

Mandatory tests
for the TC1 category for the TC2 category
Ladle analysis
Tensile testing of the base material in room temperature
Flattening test or ring testing
Expansion testing on a mandrel bar or ring expansion test
Resilience testing in low temperature /-40 to +20 C degrees/ in accordance with table 5
Tightness testing
Dimension verification
Non-destructive testing of the weld in order to identify longitudinal defects Non-destructive testing of the weld and of the pipe body in order to identify longitudinal defects
 Additional tests:
Check analysis
Tensile testing of the weld in room temperature
Wall thickness measurement at a distance from pipe ends
  Non-destructive testing in order to identify transverse defects
  Non-destructive testing in order to identify delamination

 

Chemical composition (ladle analysis), in % of the mass.