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EN 10217 Welded Steel Pipe has five different pressure purposes. There are 10217-1 is for room temperature service, -2 is for elevated temperature service, -3 for fine grain tubes, -4 for low temperature and -5 for elevated temperature services.
|
Execution |
Size Range |
OD Tolerance |
Wall tolerance |
|
Hot-rolled Tube |
OD – 80 mmOD > 80 mmWall < 12 mmWall - 12 mm |
± 0.4 mm± 0.5 % of OD |
± 0.7 mm± (5 % x wallthickness + 0.1 mm |
|
Hot-rolled peeled tube |
All sizesWall < 12 mmWall - 12 mm |
+ 0.25/- 0 mm |
± 0.8 mm± (5 % x wall thickness+ 0.2 mm) |
|
Cold Worked tubecold-rolled or cold-drawn |
OD < 40 mmOD 40 - 80 mmOD > 80 Wall Thickness< 6 mm Wall Thickness6 - 8 mm Wall Thickness > 8 |
+ 0.30/- 0 mm*+ 0.35/- 0 mm*+ 0.40/- 0 mm* |
± 0.30 mm± 0.35 mm± 0.40 mm |
Standard Specifications
EN 10217-1 - Welded steel tubes for pressure purposes in room temperature
Grade: P195TR1, P235TR1, P265TR2, P195TR2, P235TR2, P265TR2
Dimensions and tolerances:For the outside diameter D219,1 D +/-0,75 % or +/- 6 mm depending on which value is greater. The tolerances applied to wall thickness depend on the wall T For T5 +/-8 % or 2 mm (depending on which value is greater).
Pipe lengths: Pipes with precise lengths are manufactured with the following tolerance values: for D406,4- for pipes 0- 6m -0/+25%- for pipes 6-12m -0/+50%- for pipes longer than 12m -0/to be negotiated.
Tightness: Pipes should be subject to water testing (7Mpa) or electromagnetic testing.
Straightness: < 0,0015 of pipe length (below 3mm per every meter of pipe length).
Mandatory tests: ladle analysis, tensile testing, transverse tensile testing of the weld > 508, tightness testing, dimension verification, visual inspection, NDT of the weld Optional tests: transverse tensile testing of the weld D= 219,1- 508, wall thickness measurement at a distance from pipe ends.
EN 10217-2 - Electric welded non-alloy and alloy steel tubes for pressure purposes with specified elevated temperature properties
Grade: P195GH, P235GH, P265GH, 16Mo3
Pipe lengths: Pipes with precise lengths are manufactured with the following tolerance values: For D406,4- for pipes 0- 6m -0/+25%- for pipes 6-12m -0/+50%- for pipes longer than 12m -0/to be negotiated.
Tightness: Pipes should be subject to water testing (7Mpa) or electromagnetic testing..
Straightness: < 0,0015 of pipe length (below 3mm per every meter of pipe length).
Mandatory tests: TC1 – Ladle analysis, tensile testing, flattening test, resilience testing, tightness testing, dimension verification, visual inspection, NDT of the weld, material identification for 16Mo3 steel TC2 - Ladle analysis, tensile testing, flattening test, resilience testing, tightness testing, dimension verification, visual inspection, NDT of the weld, NDT of the pipe body, material identification for 16Mo3 steel Optional tests: Final product analysis, tensile testing in elevated temperature, tensile testing of the weld in room temperature, resilience testing, longitudinal resilience testing, wall thickness measurement at a distance from pipe ends, NDT in order to identify longitudinal discontinuity and delamination.
EN 10217-3 - Welded steel pipes for pressure purposes
Grade: P275, P355, P460
It specifies the technical delivery conditions for circular welded steel tubes manufactured of weldable alloy fine grain steels. The standard specifies the requirements for taking samples and the testing methods.
Circular welded steel tubes manufactured of alloy fine grain steels / from 10,2 to 2540 mm /.
Normalized rolled strip, cold formed, HFW welding and weld or tube normalization.
Hot rolled strip or normalized strip, cold formed, HFW welding and normalization through cold forming, HFW welding and hot reduction and normalization through cold forming, welding and hot reduction in the temperature adequate to obtain the normalized state.
Hot rolled sheets or strips, cold forming, SAW welding and normalization.
Normalized rolled sheets or strip, cold forming, SAW welding, without thermal processing
Mandatory tests: ladle analysis, tensile testing, transverse tensile testing of the weld > 508, tightness testing, dimension verification, visual inspection, NDT of the weld Optional tests: transverse tensile testing of the weld D= 219,1- 508, wall thickness measurement at a distance from pipe ends.
EN 10217-4 - Electric welded non-alloy steel tubes with specified low temperature properties
Grade: P215NL and P265NL
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 /.
EN 10217-5 - Submerged arc welded non-alloy and alloy steel tubes with specified elevated temperature properties
Grade: P235GH ,P265GH, 16Mo3
The standard specifies the technical delivery conditions for circular submerged arc welded steel tubes with specified elevated temperature properties manufactured of non-alloy and alloy steels. It specifies the requirements for taking samples and the methods of testing.
Circular submerged arc welded steel tubes with specified elevated temperature properties manufactured of non-alloy and alloy steels./ from 406,4 to 2540 mm /.
EN 10217-6 - Submerged arc welded non-alloy steel tubes with specified low temperature properties
Grade: P215NL and P265NL
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 /
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