EN 10028-2:2017 13CrMoV9-10 Steel: Specifications & Listings
EN 10028-2:2017 13CrMoV9-10: 13CrMoV9-10: chromium molybdenum vanadium alloy special steel for pressure purposes with specified elevated temperature properties. Specified in EN 10028-2:2017.
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Chemical Composition (%)
C
Si
Mn
P
S
N
Cr
Cu
Mo
Nb
Ni
Ti
V
B
Ca
0.11-0.15
<=0.10
0.30-0.60
<=0.015
<=0.005
<=0.012
2.00-2.50
<=0.20
0.90-1.10
<=0.07
<=0.25
<=0.03
0.25-0.35
<=0.002
<=0.015
Mechanical Properties
Tensile Strength
600-780 MPa
Yield Strength
>=455 MPa
Elongation
>=18%
Condition
Usual delivery condition normalized and tempered (+NT), nominal thickness up to 60 mm; transverse direction, Yield Strength is ReH, Elongation is A
More data from EN 10028-2:2017
From the standard
Mechanical properties by thickness3 thickness ranges
Delivery condition
Thickness t (mm)
Yield strength ReH, min (MPa)
Tensile strength Rm (MPa)
Elongation A, min (%)
+NT
up to 60
455
600 to 780
18
+NT
over 60 to 150
435
590 to 770
18
+QT
over 150 to 250
415
580 to 760
18
Transverse direction; usual delivery condition as stated per row.
Source: EN 10028-2:2017, Table 3
Impact energy KV2 (Charpy V-notch)1 row
Condition or thickness
KV2 min at -20 deg C (J)
KV2 min at 0 deg C (J)
KV2 min at +20 deg C (J)
all thicknesses
27
34
40
A dash means a value may be agreed at the time of enquiry and order; 40 J may be agreed at +20 deg C where 31 or 27 J is listed.
Source: EN 10028-2:2017, Table 3
Proof strength at elevated temperature2 thickness ranges, 50 to 500 deg C
Thickness t (mm)
Rp0.2 min at 50 deg C (MPa)
Rp0.2 min at 100 deg C (MPa)
Rp0.2 min at 150 deg C (MPa)
Rp0.2 min at 200 deg C (MPa)
Rp0.2 min at 250 deg C (MPa)
Rp0.2 min at 300 deg C (MPa)
Rp0.2 min at 350 deg C (MPa)
Rp0.2 min at 400 deg C (MPa)
Rp0.2 min at 450 deg C (MPa)
Rp0.2 min at 500 deg C (MPa)
up to 60
410
395
380
375
370
365
362
360
350
-
over 60 to 250
405
390
370
365
360
355
352
350
340
-
Minimum 0.2 percent proof strength; delivery condition as given in Table 3.
Source: EN 10028-2:2017, Table 4
Heat treatment guidelineguideline temperatures
Normalizing temperature
930 to 990 deg C
Quenching temperature
-
Tempering temperature
675 to 750 deg C
Informative guideline (Annex A).
Source: EN 10028-2:2017, Table A.1
Stress relieving guidance (Pcrit)Pcrit and holding time
Pcrit value
19.4
Stress relieving temperature for 1 h holding
695 deg C
Stress relieving temperature for 2 h holding
685 deg C
Selected pairs of stress relieving temperature and holding time for guidance (Annex B).
Source: EN 10028-2:2017, Table B.1
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