EN 10088-3:2014 X1NiCrMoCuN25-20-7 Steel: Specifications & Listings
EN 10088-3:2014 X1NiCrMoCuN25-20-7: X1NiCrMoCuN25-20-7: austenitic corrosion resisting stainless steel, material number 1.4529. Specified in EN 10088-3:2014.
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%
Hardness
<=250 HB
Condition
Solution annealed (+AT), conditions 1C, 1E, 1D, 1X, 1G and 2D, thickness or diameter up to 160 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 diameter2 size ranges
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 160
250
300
340
650 to 850
40
-
100
-
over 160 to 250
250
300
340
650 to 850
-
35
-
60
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
Bright bars, solution annealed5 size ranges
Thickness or diameter (mm)
Rp0.2 min (MPa)
Rm (MPa)
A5 min, longitudinal (%)
A5 min, transverse (%)
KV2 min, longitudinal (J)
KV2 min, transverse (J)
up to 10
550
700 to 1150
15
-
-
-
over 10 to 16
550
700 to 1150
15
-
-
-
over 16 to 40
300
650 to 1050
30
-
100
-
over 40 to 63
300
650 to 900
30
-
100
-
over 63 to 160
300
650 to 850
40
-
100
-
Bright bars, conditions 2H, 2B, 2G or 2P, including cut lengths from wire; A5 valid for 5 mm and above.
Source: EN 10088-3:2014, Table 13
Wire in cold worked (2H) and annealed (2D) condition18 rows
Condition
Wire diameter d (mm)
Tensile strength (MPa)
Elongation min (%)
2H +C500
0.05 and above
500 to 700
-
2H +C600
0.05 and above
600 to 800
-
2H +C700
0.05 and above
700 to 900
-
2H +C800
0.05 and above
800 to 1000
-
2H +C900
0.05 and above
900 to 1100
-
2H +C1000
0.05 and above
1000 to 1250
-
2H +C1100
0.05 and above
1100 to 1350
-
2H +C1200
0.05 and above
1200 to 1450
-
2H +C1400
0.05 and above
1400 to 1700
-
2H +C1600
0.05 and above
1600 to 1900
-
2H +C1800
0.05 and above
1800 to 2100
-
2D +AT
over 0.05 to 0.10
max. 1100
20
2D +AT
over 0.10 to 0.20
max. 1050
20
2D +AT
over 0.20 to 0.50
max. 1000
30
2D +AT
over 0.50 to 1.00
max. 950
30
2D +AT
over 1.00 to 3.00
max. 900
30
2D +AT
over 3.00 to 5.00
max. 850
35
2D +AT
over 5.00 to 16.00
max. 800
35
2H levels: elongation depends on diameter and is to be agreed; 2D: tensile strength is maximum.
Source: EN 10088-3:2014, Table 18 and 19
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 10088-3:2014, Table 20
Hot forming and solution annealingguideline temperatures
Hot forming temperature
1200 to 950 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 10088-3:2014, Table A.1
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