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
<=0.07
<=1.00
<=2.00
<=0.045
<=0.030
16.0-18.0
6.0-8.0
<=0.10
Mechanical Properties
Tensile Strength
500-700 MPa
Yield Strength
>=190 MPa
Elongation
>=45%
Hardness
<=215 HB
Condition
Solution annealed (+AT), conditions 1C, 1E, 1D, 1X, 1G and 2D, thickness or diameter up to 16 mm; Yield Strength is Rp0.2, Elongation is A (longitudinal), hardness for guidance only
More data from EN 10088-3:2014
From the standard
Mechanical properties by thickness or diameter1 size range
Thickness or diameter (mm)
Hardness HBW, max (guidance)
Rp0.2 min (MPa)
Rp1.0 min (MPa)
Rm (MPa)
A min, longitudinal (%)
A min, transverse (%)
KV2 min, longitudinal (J)
KV2 min, transverse (J)
up to 16
215
190
225
500 to 700
45
-
100
-
Solution annealed, conditions 1C, 1E, 1D, 1X, 1G and 2D; for rods only the tensile strength values apply.
Source: EN 10088-3:2014, Table 8
Proof strength at elevated temperature10 temperatures
Temperature (deg C)
Rp0.2 min (MPa)
Rp1.0 min (MPa)
100
155
190
150
140
170
200
127
155
250
118
145
300
110
135
350
104
129
400
98
125
450
95
122
500
92
120
550
90
120
Minimum values, solution annealed (+AT).
Source: EN 10088-3:2014, Table 20
Hot forming and solution annealingguideline temperatures
Hot forming temperature
1200 to 900 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 10088-3:2014, Table A.1
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