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EN 10216-2 seamless steel tubes

This part of EN1026 specifies the technical delivery conditions in two test categories for seamless tubes for circular cross section, with specified elevated temperature properties, made of non-alloy and alloy steel.

Chemical composition:

Steel grade C Si Mn P S Cr   b Mo   b Ni   b Al   tot

Cu  

b c

Nb   b Cr+Cu
+Mo+Ni
Steel name Steel number max.  max.  max. Max. max. max. max. max. min. max. max. max.   b
P195TR1 1.0107 0,13 0,35 0,70 0,025 0,020 0,30 0,08 0,30 0,30 0,010 0,70
P195TR2 1.0108 0,13 0,35 0,70 0,025 0,020 0,30 0,08 0,30 0,02   d 0,30 0,010 0,70
P235TR1 1.0254 0,16 0,35 1,20 0,025 0,020 0,30 0,08 0,30 0,30 0,010 0,70
P235TR2 1.0255 0,16 0,35 1,20 0,025 0,020 0,30 0,08 0,30 0,02   d 0,30 0,010 0,70
P265TR1 1.0258 0,20 0,40 1,40 0,025 0,020 0,30 0,08 0,30 0,30 0,010 0,70
P265TR2 1.0259 0,20 0,40 1,40 0,025 0,020 0,30 0,08 0,30 0,02   d 0,30 0,010 0,70

a 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 steelmaking process.

b The content of these elements need not be reported unless intentionally added to the cast.

c Option 2: 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.

Mechanical property:

Steel grade Tensile properties Impact properties
Steel name Steel number Upper yield strength ReH b min. for Wall Thickness T mm Tensile Strength Rm Elongation A min.   % 
b c
Minimum average absorbed energy KV J at a temperature of °C c
T =16 16 < T =40 40 < T =60 l t
Mpa Mpa Mpa Mpa l t 0 -10 0
P195TR1 e 1.0107 195 185 175 320 to 440 27 25
P195TR2 1.0108 195 185 175 320 to 440 27 25 40 28 d 27
P235TR1 e 1.0254 235 225 215 360 to 500 25 23
P235TR2 1.0255 235 225 215 360 to 500 25 23 40 28 d 27
P265TR1 e 1.0258 265 255 245 410 to 570 21 19
P265TR2 1.0259 265 255 245 410 to 570 21 19 40 28 d 27

Inspection and Test For EN 10216-2 Steel Pipe

Inspection and test type Test frequency Test category
Mandatory tests Ladle analysis One per ladle 1 2
Tensile testing in room temperature One per every test pipe X X
Flattening test for D<600mm and the ratio of D≤0.15 but T≤40mm or ring testing for D>150mm and T ≤40mm X X
Rolling test on a mandrel bar for D≤150mm and T≤10mm or ring testing for D≤114,3mm and T ≤12,5mm X X
Resilience testing at the temperature of 20 ºC X X
Tightness testing Every pipe X X
Dimensional testing   X X
Visual inspection   X X
NDT in order to identify longitudinal discontinuity Every pipe X X
Material identification for alloy steel X X
Optional tests Final product analysis One per ladle X X
Tensile testing at elevated temperature One per ladle and for the same thermal processing conditions X X
Resilience testing One per every test pipe X X
Resilience testing in the machine direction at the temperature of -10ºC for non-alloy steel grades X X
Wall thickness measurement at a distance from pipe ends   X X
NDT in order to identify transverse discontinuity
Every pipe
X X
NDT in order to identify delamination X X

Dimension for EN10216-2 Steel pipe

EN 10216-2 Outside diameter and wall thickness tolerances
Outside diameter D mm Permissible deviations
of outside diameter D
Permissible deviations of wall thickness
depending on the T/D ratio
≤0.025 >0.025
≤0.050
>0.050
≤0.10
>0.10
D≤219,1 +\- 1% or =\- 0.5mm depending on which is greater +\- 12,5% or 0.4 mm depending on which is greater
D>219,1 =\- 20% =\- 15% =\- 12,5% =\- 10%

Marking:

  • Pipes are supplied with marking according to standard and customer request.
  • Marking is paint on the ends of pipes.
  • The same data, as well as additional information per customer’s request, is indicated on the bundle’s tags.

Delivery:

  • Pipes are supplied in hexagonal bundles or round bundles tied with steel strip.
  • Weight of bundle – up to 5000 kg upon request of customer.
  • Each bundle is furnished with three tags.
sunnysteel

Sunny Steel provide a wide range of steel products as Steel pipes, Seamless tube and seamless pipes, Alloy pipes, Pipe fittings, Composite steel pipe used in the industry, construction etc.

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