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X10CrMoVNb9-1 steel pipe and X20CrMoV11-1 steel pipe Mechanical property
Source:Steel Industry Date:2021/03/17
X10CrMoVNb9-1 steel pipe and X20CrMoV11-1 steel pipe are Chromium-Molybdenum-Vanadium alloy steel materials comply to european specification EN 10216-2.Normalized and Tempered heat treatment shall be done for X20CrMoV11-1 steel pipe and X10CrMoVNb9-1 steel pipe,tempering temperature shall be within 730-780 Deg.Centigrade.
In chemical composition,X20CrMoV11-1 steel pipe requires Cr% within 10%-12.5% and Mo% within 0.8-1.2% and V% within 0.25-0.35%,however X10CrMoVNb9-1 steel pipe requires Cr% within 8%-9.5% and Mo% within 0.85-1.05% and V% within 0.18-0.25%.Tensile strength for these two steel grades both above 630 Mpa.NDT test shall be done for X10CrMoVNb9-1 steel pipe and X20CrMoV11-1 steel pipe.
Comparasion with EN 10216-2 X10CrMoVNb9-1 steel pipe and X20CrMoV11-1 steel pipe in properties:
|
X10CrMoVNb9-1 X20CrMoV11-1 |
Chemical composition: Heat Analysis Max% | |||||||||||||
|
Standard |
Grade |
C |
Mn |
P |
S |
Si |
Cu |
Nb |
N |
Cr |
Ni |
Mo |
Alt |
V |
|
EN 10216-2 |
X10CrMoVNb9-1 |
0.08-0.12 |
0.3-0.6 |
0.02 |
0.01 |
0.2-0.5 |
0.3 |
0.06-0.1 |
0.03-0.07 |
8.0-9.5 |
0.4 |
0.85-1.05 |
0.04 |
0.18-0.25 |
|
EN 10216-2 |
X20CrMoV11-1 |
0.17-0.23 |
1.0 |
0.025 |
0.02 |
0.15-0.5 |
0.3 |
|
|
10-12.5 |
0.3-0.8 |
0.8-1.2 |
0.04 |
0.25-0.35 |
|
Mechanical Properties: |
Thickness |
Yield strength |
Tensile strength | |||||||||||
|
|
|
Mpa Min. |
Mpa | |||||||||||
|
EN 10216-2 |
X10CrMoVNb9-1 |
T≤16 |
450 |
630-830 | ||||||||||
|
EN 10216-2 |
X20CrMoV11-1 |
T≤16 |
490 |
690-840 | ||||||||||