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
Cr
Mo
Ni
N
<=0.06
<=0.70
<=1.50
<=0.040
<=0.015
15.0-17.0
0.80-1.50
4.0-6.0
>=0.020
Mechanical Properties
Tensile Strength
840-1100 MPa
Yield Strength
>=660 MPa
Elongation
>=14%
Condition
Quenched and tempered (+QT840), hot rolled plate, up to 75 mm thick
More data from EN 10088-2:2014
From the standard
Mechanical properties by condition1 conditions
Product form
Max thickness (mm)
Condition
Rp0.2 min (MPa)
Rm (MPa)
A80 min, under 3 mm thick (%)
A min, 3 mm and over (%)
Hot rolled plate
75
+QT840
660
840 to 1100
14
14
+A = annealed, +QT = quenched and tempered.
Source: EN 10088-2:2014, Table 10
Impact energy KV2 (ISO-V)1 rows
Product form
Max thickness (mm)
Condition
KV2 min (J)
Hot rolled plate
75
+QT840
55
Applies to products more than 10 mm thick, ISO-V notch.
Source: EN 10088-2:2014, Table 10
Proof strength at elevated temperature7 temperatures
Temperature (deg C)
Rp0.2 min, +QT840 (MPa)
100
660
150
640
200
620
250
600
300
580
350
-
400
-
Minimum values.
Source: EN 10088-2:2014, Table 15
Hot forming and heat treatment1 conditions
Condition
Annealing temperature (deg C)
Quenching temperature (deg C)
Quenching medium
Tempering temperature (deg C)
+QT840
-
900 to 1000
oil, air, water
570 to 650
Hot forming 1150 to 900 deg C, cooling: air. Informative guideline.
Source: EN 10088-2:2014, Table A.4
Active EN 10088-2:2014 X4CrNiMo16-5-1 Listings on M-EX (For Sale)