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
Ni
N
<=0.030
<=1.00
<=2.00
<=0.045
<=0.015
18.0-20.0
10.0-12.0
<=0.10
Mechanical Properties
Tensile Strength
520-700 MPa
Yield Strength
>=220 MPa
Elongation
>=45%
Condition
Solution annealed (+AT), cold rolled strip, up to 8 mm thick; Yield Strength is Rp0.2 (transverse), Elongation is A80 for under 3 mm thick
More data from EN 10088-2:2014
From the standard
Mechanical properties by product form and thickness3 product forms
Product form
Max thickness (mm)
Rp0.2 min (MPa)
Rp1.0 min (MPa)
Rm (MPa)
A80 min, under 3 mm thick (%)
A min, 3 mm and over (%)
Cold rolled strip
8
220
250
520 to 700
45
45
Hot rolled strip
13.5
200
240
520 to 700
45
45
Hot rolled plate
75
200
240
500 to 700
45
45
Solution annealed condition; proof strength and elongation are minimum transverse values.
Source: EN 10088-2:2014, Table 7
Impact energy KV2 (ISO-V)2 rows
Product form
Max thickness (mm)
KV2 longitudinal, min (J)
KV2 transverse, min (J)
Hot rolled strip
13.5
100
60
Hot rolled plate
75
100
60
Applies to products more than 10 mm thick, ISO-V notch, room temperature.
Source: EN 10088-2:2014, Table 7
Proof strength at elevated temperature10 temperatures
Temperature (deg C)
Rp0.2 min (MPa)
Rp1.0 min (MPa)
100
147
181
150
132
162
200
118
147
250
108
137
300
100
127
350
94
121
400
89
116
450
85
112
500
81
109
550
80
108
Minimum values, solution annealed (+AT).
Source: EN 10088-2:2014, Table 12
Hot forming and solution annealingguideline temperatures
Hot forming temperature
1150 to 850 deg C
Cooling after hot forming
air
Heat treatment symbol
+AT
Solution annealing temperature
1000 to 1100 deg C
Cooling after solution annealing
water, air
Informative guideline; cooling must be rapid enough to avoid intergranular corrosion.
Source: EN 10088-2:2014, Table A.1
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