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
Nb
Ti
<=0.030
<=1.00
<=1.00
<=0.040
<=0.015
17.5-18.5
<=1.00
0.10-0.60
Mechanical Properties
Tensile Strength
430-630 MPa
Condition
Annealed (+A), cold rolled strip, up to 8 mm thick; Elongation is A80 (under 3 mm) or A (3 mm and over), longitudinal and transverse
Yield Strength
>=230 MPa
Elongation
>=18%
More data from EN 10088-2:2014
From the standard
Mechanical properties by product form and thickness1 product form
Product form
Max thickness (mm)
Rp0.2 longitudinal, min (MPa)
Rp0.2 transverse, min (MPa)
Rm (MPa)
A80 min, under 3 mm thick (%)
A min, 3 mm and over (%)
Cold rolled strip
8
230
250
430 to 630
18
18
Annealed condition; one elongation value is printed for both thickness classes.
Source: EN 10088-2:2014, Table 9
Proof strength at elevated temperature7 temperatures
Temperature (deg C)
Rp0.2 min (MPa)
100
230
150
220
200
210
250
205
300
200
350
180
400
-
Minimum values, annealed (+A).
Source: EN 10088-2:2014, Table 14
Hot forming and annealingguideline temperatures
Hot forming temperature
1100 to 800 deg C
Cooling after hot forming
air
Heat treatment symbol
+A
Annealing temperature
870 to 930 deg C
Cooling after annealing
air, water
Informative guideline.
Source: EN 10088-2:2014, Table A.3
Active EN 10088-2:2014 X2CrTiNb18 Listings on M-EX (For Sale)