EN 10216-2 P265GH SEAMLESS STEEL TUBES

EN 10216-2 P265GH Seamless steel tubes Standard:EN 10216-2 Seamless steel tubes for pressure purposes Technical delivery conditions Part 2: Non-alloy and alloy steel tubes with specified elevated temperature properties EN 10216-2 P265GH 

EN 10216-2 P265GH Sseamless Steel Tubes 

Standard:EN 10216-2 Seamless steel tubes for pressure purposes —Technical delivery conditions
Part 2: Non-alloy and alloy steel tubes with specified elevated temperature properties
EN 10216-2 P265GH Seamless steel tubes for pressure purposes

 

EN 10216-2 P265GH Seamless steel tubes Quick Details
Manufacture:Seamless process
Wall thickness(WT): 2.1mm——20 mm.
Outer diameter (OD): 21 mm——509mm
Length: 6M or specified length as required.
Ends: Plain End, Beveled End, Treaded

 

The steel name of non-alloy steel grades
(1)The capital letter P for pressure purposes;
(2)The symbols GH for elevated temperature.

 

EN 10216-2 P265GH Seamless steel tubes shall be supplied in the relevant heat treatment conditions as specified in Table 1.

Steel grade

Heat
treatment
a
Austenizing Tempering

Steel
name

Steel
number

Temperature °C

Cooling
Medium
Temperature °C

Cooling
medium

P265GH

1.0425 +N b 880 to 940 Air

a  +N = Normalising, +NT = Normalising + Tempering, +QT = Quenching + Tempering (air or liquid), +I = Isothermal Annealing.
b  Normalising includes Normalising Forming.

 

Chemical composition of EN 10216-2 P265GH

Steel grade

Steel
number
C Si Mn P max S max Cr Mo Ni

P265GH

1.0425 ≤ 0,20 ≤ 0,40 ≤ 1,40 0,025 0,020 ≤ 0,30 ≤ 0,08

≤ 0,30

Al tot

Cu Nb Timax V Cr+Cu+Mo+Ni

Others

≥ 0,020 b ≤ 0,30 c ≤ 0,010 d 0,040 ≤ 0,02 ≤ 0,70

 

Mechanical properties of EN 10216-2 P265GH

Steel grade

Upper yield strength or proof strength
R eH or Rp 0,2 for Wall Thickness T
min.
Tensile
Strength
Rm
Elongation
A min.
% a

Steel name

Steel
number

T ≤ 16

16 < T ≤ 40 40 < T ≤ 60

60 < T ≤ 100

l

t

MPa *

MPa * MPa * MPa *

MPa *

P265GH 1.0425 265 255 245 410 to 570 23

21

Note:l = longitudinal t = transverse

 

Dimensions tolerances of EN 10216-2
Tolerances on outside diameter and wall thicknes

Outside Diameter D mm Tolerances on
D

Tolerances on T for a T/D ratio

≤ 0,025

> 0,025
≤ 0,050
> 0,050
≤ 0,10

> 0,10

D ≤ 219,1

± 1% or ± 0.5mm
whichever is the greater
± 12,5% or ± 0.4mm whichever is the greater
D > 219,1 ± 20% ± 15% ± 12,5%

± 10%

 For outside diameters D ≥ 355,6 mm it is permitted to exceed the upper wall thickness locally by a further 5% of the wall thickness T

 

Tolerances on inside diameter and wall thickness

Tolerances on inside diameter

Tolerances on T for a T/d ratio

d

d min ≤ 0,03 > 0,03
≤ 0,06
> 0,06
≤ 0,12

> 0,12

± 1% or ± 2 mm whichever is the greater

(+ 2% ,0)or (+ 4 mm,0) whichever is the greater ± 20% ± 15% ± 12,5%

± 10%

 For outside diameters D ≥ 355,6 mm it is permitted to exceed the upper wall thickness locally by a further 5% of the wall thickness T

 

Tolerances on outside diameter and minimum wall thickness

Outside diameter D mm

Tolerances on D Tolerances on T min for a T min /D ratio
≤ 0,02 > 0,02
≤ 0,04
> 0,04
≤ 0,09

> 0,09

D ≤ 219,1

± 1% or ± 0.5mm
whichever is the greater
(+ 28%,0) or (+ 0.8 mm,0) whichever is the greater
D > 219,1 + 50%
0
+ 35%
0
+ 28%
0

+ 22%
0

For outside diameters D ≥ 355,6 mm it is permitted to exceed the upper wall thickness locally by a further 5% of the wall thickness T

 

Tolerances on inside diameter and minimum wall thickness

Tolerances
on inside diameter

Tolerances on T min for a
T min /d ratio

d

d min ≤ 0,05 > 0,05
≤ 0,1

> 0,1

± 1% or ± 2 mm
whichever is the greater

(+2%,0) or (+ 4 mm,0) whichever is the greater + 35%
0
+ 28%
0

+ 22%
0

For outside diameters D ≥ 355,6 mm it is permitted to exceed the upper wall thickness locally by a further 5% of the wall thickness T

 

Tolerances on exact lengths
Dimension in mm

Length L

Tolerance on exact length

L ≤ 6000

+10
0
6000 < L ≤ 12 000

+15
0

L > 12 000

+ by agreement
0

 

TESTINGS
(1)Chemical analysis
(2)Tensile test(Tensile test at room temperature, Tensile test at elevated temperature)
(3)Flattening test
(4)Ring tensile test
(5)Drift expanding test
(6)Ring expanding test
(7)Impact test
(8)Leak tightness test(Hydrostatic test,  Electromagnetic test)
(9)Dimensional inspection
(10) Visual examination
(11) Non-destructive testing