EN 10216-2 1.7380 10CrMo9-10 Seamless Steel Tubes

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EN 10216-2 10CrMo9-10 Seamless steel tubes for pressure purposes,The tubes are manufactured by a seamless process.Wall thickness(WT): 2.1mm——20 mm.Outer diameter (OD): 21 mm——509mm

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EN 10216-2 10CrMo9-10 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 10CrMo9-10 Seamless steel tubes for pressure purposes
 
 
EN 10216-2 10CrMo9-10 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
 
Additional Info
Port of Shipment: Tianjin, China
Payment Terms:T / T, LC
Delivery: 7-15 days after payment
Surface: Tubes will be varnished (Outside only) to prevent rust.
Marking: Standard + Steel Grade + Size + Heat No + Lot No
Package: Bundles (hexagonal),Wooden Boxes,Crates (steel/wooden) or as required
 
 
The steel name of non-alloy steel grades
(1)The capital letter P for pressure purposes;
(2)The symbols GH for elevated temperature.
 

MANUFACTURING PROCESS
(1)Steel making process
Steels shall be fully killed.
(2)Tube manufacture and delivery conditions
The tubes shall be manufactured by a seamless process.
The tubes can be either hot or cold finished.
 
EN 10216-2 10CrMo9-10 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
10CrMo9-10 1.7380 +NT  b c 900 to 960 Air 680 to 750 air
 
 
Chemical composition of EN 10216-2 10CrMo9-10
Steel grade Steel number C Si Mn P max S max
10CrM09-10 1.7380 0,08 to 0,14 ≤ 0,50 0,30 to 0,70 0,025 0,020
 
Cr Mo Ni Al tot Cu
2,00 to 2,50 0,90 to 1,10 ≤ 0,30 ≤ 0,040 ≤ 0,30 c
 
 
Mechanical properties of EN 10216-2 10CrMo9-10
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.% 
Steel name Steel
number		 T ≤ 16 16 < T ≤ 40 40 < T ≤ 60 60 < T ≤ 100 l t
MPa * MPa * MPa * MPa * MPa *
10CrMo9-10 1.7380 280 280 270 - 480 to 630 22 20
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% a
a 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% a
a 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% a
0
a 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% a
0
a 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
 
 
MARKING
Marking to be applied
The marking shall be indelibly marked on each tube at least at one end. For tubes with outside diameter D ≤ 51 mm the marking on tubes may be replaced by the marking on a label attached to the bundle or box.
 
 
PROTECTION
The tubes will be delivered with A temporary protective coating or durable coating and/or lining
 

Ordering Information
Mandatory information
a) the quantity (mass or total length or number);
b) the term "tube";
c) the dimensions ;
d) the designation of the steel grade in accordance with this Part of EN 10216 ;
e) the test category for non-alloy steel .
 
 
Options
1) Cold finishing.
2) Restriction on copper and tin content.
3) Product analysis.
4) Impact testing .
5) Longitudinal impact testing at -10° C for non-alloy steel grades.
6) Tensile testing at elevated temperature .
7) Selection of leak-tightness test method .
8) Non-Destructive Testing for test category 2 tubes for detection of transverse imperfections.
9) Non-Destructive Testing for test category 2 tubes for detection of laminar imperfections .
10) Special ends preparation.
11) Set of dimensions other than D and T.
12) Exact lengths ).
13) The type of inspection document other than the standard document.
14) Test pressure for hydrostatic leak-tightness test .
15) Wall thickness measurement away from the ends .
16) Non-Destructive Testing method.
17) Additional marking .
18) Protection .

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