EN 10088-3:2014 X1CrNiMoCuN20-18-7 Steel: Specifications & Listings
EN 10088-3:2014 X1CrNiMoCuN20-18-7: X1CrNiMoCuN20-18-7: austenitic corrosion resisting stainless steel, material number 1.4547. 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
<=0.70
<=1.00
<=0.030
<=0.010
19.5-20.5
6.0-7.0
17.5-18.5
0.18-0.25
0.50-1.00
Mechanical Properties
Tensile Strength
650-850 MPa
Yield Strength
>=300 MPa
Elongation
>=35%
Hardness
<=260 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
260
300
340
650 to 850
35
-
100
-
over 160 to 250
260
300
340
650 to 850
-
30
-
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
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
205
245
200
190
225
250
180
212
300
170
200
350
165
195
400
160
190
450
153
184
500
148
180
550
-
-
Minimum values, solution annealed (+AT).
Source: EN 10088-3:2014, Table 20
Hot forming and solution annealingguideline temperatures
Hot forming temperature
1200 to 1000 deg C
Cooling after hot forming
air
Heat treatment symbol
+AT
Solution annealing temperature
1140 to 1200 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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