EN 10217-1 Welded steel pipe | P195TR1 | P195TR2 | P235TR1 | P235TR2 | P265TR1 | P265TR2

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EN 10217 is a European Standard that provides specifications for “Welded steel tubes for pressure purposes.” This standard includes multiple parts, each dealing with specific types of steel:

  • EN 10217-1: Non-alloy steel tubes with specified room temperature properties
  • EN 10217-2: Electric welded non-alloy and alloy steel tubes with specified elevated temperature properties
  • EN 10217-3: Alloy fine grain steel tubes
  • EN 10217-4: Electric welded non-alloy steel tubes for pressure purposes with specified low temperature properties
  • EN 10217-5: Submerged arc welded non-alloy and alloy steel tubes with specified elevated temperature properties
  • EN 10217-6: Submerged arc welded non-alloy steel tubes with specified low temperature properties
  • EN 10217-7: Stainless steel tubes

Each part outlines the technical delivery conditions for a particular category of steel. While I can’t provide the full standards due to copyright restrictions, I can tell you that they generally cover the following topics:

  1. Scope: Defines what the standard applies to.
  2. Normative References: Lists other standards referred to in this document.
  3. Terms and Definitions: Explains the terminology used in the standard.
  4. Ordering Information: Specifies the details that should be provided at the time of inquiry and order.
  5. Manufacturing: Describes the manufacturing and delivery process.
  6. Requirements: Outlines the specific requirements for the steel, including mechanical properties, chemical composition, and testing methods.
  7. Test Methods: Describes how to test the steel to ensure it meets the required standards.
  8. Inspection and Certification: Details the inspection and certification process.
  9. Marking: Specifies what information should be marked on the steel.

To access the full standards with specific details, you would need to purchase them from an official standards organization or authorized reseller. Please respect copyright laws when accessing and using standards.

 

APPEARANCE OF EN 10217-1 PIPES

– Weld Seam

The weld area of EN 10217-1 pipe is a critical component that must be free from cracks, lack of fusion, and lack of penetration. Any repairs to the weld seam of EW and HFW tubes are not permitted. Repairs to the weld seam of SAW tubes shall be allowed if done by an agreed documented procedure. This is to ensure the structural integrity of the pipe and to prevent any potential leaks.

– Tube Surface

The EN 10217-1 pipe has specific requirements for its surface to be considered usable. The tube must be free of any external or internal surface defects that can be detected by a visual examination of the surfaces. Additionally, the finish and surface condition should not be such that any surface imperfections would require dressing. However, if it is necessary to dress the surface imperfections, they can only be ground or machined down. The wall thickness in the dressed area must not fall below the specified minimum wall thickness after dressing. Finally, all dressed areas must blend smoothly into the contour of the tube without any visible imperfections.

CHEMICAL COMPOSITION FOR EN 10217-1 NON-ALLOY STEEL TUBES

– Chemical Composition

Steel Grade C max. Si max. Mn max. P max. S max. Cr b Max. Mo b max. Ni b max. Al tot min. Cu b c max. Nb b max. Ti b max. V b max. Cr+Cu+Mo+Ni b max.
Steel Name Steel Number
P195TR1 1.0107 13 35 70 25 20 30 8 30 30 10 4 2 70
P195TR2 1.0108 13 35 70 25 20 30 8 30 0,02 d 30 10 4 2 70
P235TR1 1.0254 16 35 120 25 20 30 8 30 30 10 4 2 70
p235TR2 1.0255 16 35 120 25 20 30 8 30 0,02 d 30 10 4 2 70
P265TR1 1.0258 20 40 140 25 20 30 8 30 30 10 4 2 70
P265TR2 1.0259 20 40 140 25 20 30 8 30 0,02 d 30 10 4 2 70
b    Elements not included in this Table shall not be intentionally added to the steel without the agreement of the purchaser, except for elements which may be added for finishing the cast. All appropriate measures shall be taken to prevent the addition of undesirable elements from scrap or other materials used in the steel making process.
b    The content of these elements need not be reported unless intentionally added to the cast.
c    Option 3: In order to facilitate subsequent forming operation, an agreed maximum copper content lower than indicated and an agreed specified maximum tin content shall apply.
d    This requirement is not applicable provided the steel contains a sufficient amount of other nitrogen binding elements, which shall be reported.

– Permissible Deviations of EN 10217-1 Product Analysis

Steel Grades Tensile Properties Impact Properties
Steel Name Steel Number Upper Yield Strength Tensile Strength Elongation Minimum Average
Reh b min for A min Absorbed Energy KV   J
T mm Rm % b c at a temperature of ℃ c
T ≤16 16<T≤40 l t
MPa * MPa * l t 0 -10 0
P195TR1 e 1.0107 195 185 320-440 27 25
P195TR2 1.0108 195 185 320-440 27 25 40 28 d 27
P235TR1 e 1.0254 235 225 360-500 25 23
P235TR2 1.0255 235 225 360-500 25 23 40 28 d 27
P265TR1 e 1.0258 265 255 410-570 21 19
P265TR2 1.0259 265 255 410-570 21 19 40 28 d 27
a    For wall thickness greater than 40 mm the mechanical properties are subject to agreement. b    See 11.2. c    l = longitudinal; t = transverse. d    Option 5: Additionally,  longitudinal impact strength shall be verified at – 10 °C. e    Tubes made to these material grades are unlikely to support the essential requirements of Directive 97/23/EC unless other criteria are taken into account, see Annex I section 7.5 of this Directive *    1 MPa = 1 N/mm²

MECHANICAL PROPERTIES OF EN 1021-7-1 PIPES

Steel Grades Tensile Properties Impact Properties
Steel Name Steel Number Upper Yield Strength Tensile Strength Elongation Minimum Average Absorbed Energy
At a Temperature of ℃
T≤16 16<T≤40 l t
Mpa Mpa l t 0 -10 0
P195TR1 1.0107 195 185 320-440 27 25
P195TR2 1.0108 195 185 320-440 27 25 40 28 27
P235TR1 1.0254 235 225 360-500 25 23
P235TR2 1.0255 235 225 360-500 25 23 40 28 27
P265TR1 1.0258 265 255 410-570 21 19
P265TR2 1.0259 265 255 410-570 21 19 40 28 27

TOLERANCE OF EN 10217-1 STEEL PIPES

– Outside Diameter and Wall Thickness Tolerance on EN 10217-1

Outside Diameter Tolerance on
Outside Diameter Wall Thickness
D D T ≤ 5 5 < T ≤ 40
D ≤ 219.1 ±1% or ±0.5 ±10% or ±0.3 Whichever is the greater ±8% or ±2 Whichever is the greater
Whichever is the greater
D > 219.1 ±0.75% or ±6
Whichever is the greater

– Length Tolerance on EN 10217-1

Length Tolerances on Exact Length for Outside Diameter (D)
L < 406.4 ≥ 406.4
L ≤ 6000 +10, 0 +25, 0
6000 < L ≤ 12000 +15, 0 +50, 0
L > 12000 + by agreement, 0
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