EN 10088-2:2014 X1NiCrMoCuN25-20-7 Steel: Specifications & Listings
EN 10088-2:2014 X1NiCrMoCuN25-20-7: X1NiCrMoCuN25-20-7: austenitic corrosion resisting stainless steel, material number 1.4529. Specified in EN 10088-2:2014.
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
Cu
<=0.020
<=0.50
<=1.00
<=0.030
<=0.010
19.0-21.0
6.0-7.0
24.0-26.0
0.15-0.25
0.50-1.50
Mechanical Properties
Tensile Strength
650-850 MPa
Yield Strength
>=300 MPa
Elongation
>=40%
Condition
Solution annealed (+AT), hot rolled plate, up to 75 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 thickness1 product form
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 (%)
Hot rolled plate
75
300
340
650 to 850
40
40
Solution annealed condition; proof strength and elongation are minimum transverse values.
Source: EN 10088-2:2014, Table 7
Impact energy KV2 (ISO-V)1 rows
Product form
Max thickness (mm)
KV2 longitudinal, min (J)
KV2 transverse, min (J)
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
230
270
150
210
245
200
190
225
250
180
215
300
170
205
350
165
195
400
160
190
450
-
-
500
-
-
550
-
-
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
1120 to 1180 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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