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
0.25-0.32
<=1.00
<=1.50
<=0.040
0.15-0.25
12.0-13.5
<=0.60
Mechanical Properties
Tensile Strength
<=800 MPa
Hardness
<=245 HB
Condition
Annealed (+A), conditions 1C, 1E, 1D, 1X, 1G and 2D, thickness or diameter up to 160 mm; hardness for guidance only
More data from EN 10088-3:2014
From the standard
Mechanical properties by heat treatment condition2 rows
Thickness or diameter (mm)
Condition
Hardness HBW, max (guidance)
Rp0.2 min (MPa)
Rm (MPa)
A min, longitudinal (%)
A min, transverse (%)
KV2 min, longitudinal (J)
KV2 min, transverse (J)
up to 160
+A
245
-
max. 800
-
-
-
-
up to 160
+QT850
-
650
850 to 1000
9
-
-
-
+A = annealed, +QT = quenched and tempered; for rods only the tensile strength values apply.
Source: EN 10088-3:2014, Table 11
Bright bars, annealed and quenched and tempered5 size ranges
Thickness or diameter (mm)
Annealed Rm max (MPa)
Annealed HB max (information)
Quenched and tempered Rp0.2 min (MPa)
Quenched and tempered Rm (MPa)
A5 min, longitudinal (%)
A5 min, transverse (%)
KV2 min, longitudinal (J)
KV2 min, transverse (J)
up to 10
950
305
750
900 to 1100
8
-
-
-
over 10 to 16
950
305
700
900 to 1100
8
-
-
-
over 16 to 40
900
280
650
850 to 1100
10
-
-
-
over 40 to 63
840
260
650
850 to 1050
10
-
-
-
over 63 to 160
800
245
650
850 to 1000
12
-
-
-
Bright bars, conditions 2H, 2B, 2G or 2P; quenched and tempered condition +QT850.
Source: EN 10088-3:2014, Table 16
Hot forming and heat treatment2 conditions
Condition
Annealing temperature (deg C)
Cooling after annealing
Quenching temperature (deg C)
Quenching medium
Tempering temperature (deg C)
+A
740 to 820
air
-
-
-
+QT850
-
-
950 to 1050
oil, air
625 to 675
Hot forming 1100 to 800 deg C, cooling: slow cooling. Informative guideline.
Source: EN 10088-3:2014, Table A.4
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