EN 10088-2:2014 X12CrMnNiN18-9-5 Steel: Specifications & Listings
EN 10088-2:2014 X12CrMnNiN18-9-5: X12CrMnNiN18-9-5: austenitic corrosion resisting stainless steel, material number 1.4373. 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
Ni
N
<=0.15
<=1.00
7.5-10.5
<=0.045
<=0.015
17.0-19.0
4.0-6.0
0.05-0.25
Mechanical Properties
Tensile Strength
680-880 MPa
Yield Strength
>=340 MPa
Elongation
>=45%
Condition
Solution annealed (+AT), cold rolled strip, up to 8 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 thickness3 product forms
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 (%)
Cold rolled strip
8
340
370
680 to 880
45
45
Hot rolled strip
13.5
320
360
680 to 880
45
45
Hot rolled plate
75
320
360
600 to 800
35
35
Solution annealed condition; proof strength and elongation are minimum transverse values.
Source: EN 10088-2:2014, Table 7
Impact energy KV2 (ISO-V)2 rows
Product form
Max thickness (mm)
KV2 longitudinal, min (J)
KV2 transverse, min (J)
Hot rolled strip
13.5
100
60
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
295
325
150
260
295
200
230
265
250
220
250
300
205
230
350
185
205
400
-
-
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
1000 to 1100 deg C
Cooling after solution annealing
water, air
Informative guideline; cooling must be rapid enough to avoid intergranular corrosion.
Source: EN 10088-2:2014, Table A.1
Cold worked condition levels (process route 2H)cold worked levels
Available tensile strength levels
+C700 (700 to 850 MPa); +C850 (850 to 1000 MPa)
Available 0.2% proof strength levels
+CP500 (500 to 700 MPa); +CP700 (700 to 900 MPa)
Only one parameter (tensile strength or proof strength) can be specified in the order.
Source: EN 10088-2:2014, Table 19 and 20
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