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EN 10088-2:2014 X8CrNiS18-9 Steel: Specifications & Listings

EN 10088-2:2014 X8CrNiS18-9: X8CrNiS18-9: austenitic corrosion resisting stainless steel, material number 1.4305. Specified in EN 10088-2:2014.

Category: Stainless Steel
Grade Details
GradeEN 10088-2:2014 X8CrNiS18-9
Standard EN 10088-2:2014
ApplicationsGeneral purposes, hot or cold rolled sheet/plate and strip
Equivalent / Similar Grades
Grade Standard Region Live on M-EX
IS 6603 X10Cr18Ni9S IS 6603:2024 India No activity yet
EN 10088-1 X8CrNiS18-9 EN 10088-1:2014 Europe (CEN) No activity yet
EN 10088-3 X8CrNiS18-9 EN 10088-3:2014 Europe No activity yet
BS 970 (Part 3) 303S31 BS 970 (Part 3):1991 UK No activity yet
ASTM A959 302 ASTM A959:2011 USA No activity yet
BS 970 (Part 3) 302S31 BS 970 (Part 3):1991 UK No activity yet
BS 970 (Part 3) 325S31 BS 970 (Part 3):1991 UK No activity yet
BS 970 (Part 3) 303S42 BS 970 (Part 3):1991 UK No activity yet
Grade ComparisonCompare With a Specific Grade →
Grade Standard Match
EN 10088-1 X8CrNiS18-9 EN 10088-1:2014 Strong Match
EN 10088-1 X8CrNiS18-9 EN 10088-1:2023 Strong Match
EN 10088-3 X8CrNiS18-9 EN 10088-3:2014 Strong Match
IS 6603 X10Cr18Ni9S IS 6603:2024 Strong Match
BS 970 (Part 3) 303S31 BS 970 (Part 3):1991 Strong Match
ASTM A959 302 ASTM A959:2011 Strong Match
BS 970 (Part 3) 302S31 BS 970 (Part 3):1991 Strong Match
BS 970 (Part 3) 325S31 BS 970 (Part 3):1991 Strong Match
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 Cu
<=0.10 <=1.00 <=2.00 <=0.045 0.15-0.35 17.0-19.0 8.0-10.0 <=0.10 <=1.00
Mechanical Properties
Tensile Strength 500-700 MPa
Yield Strength >=190 MPa
Elongation >=35%
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 thickness 1 product form
Product formMax 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 plate75190230500 to 7003535
Solution annealed condition; proof strength and elongation are minimum transverse values.
Source: EN 10088-2:2014, Table 7
Hot forming and solution annealing guideline 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

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