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EN 10088-3:2014 X6CrNiMoNb17-12-2 Steel: Specifications & Listings

EN 10088-3:2014 X6CrNiMoNb17-12-2: X6CrNiMoNb17-12-2: austenitic corrosion resisting stainless steel, material number 1.4580. Specified in EN 10088-3:2014.

Category: Stainless Steel
Grade Details
GradeEN 10088-3:2014 X6CrNiMoNb17-12-2
Standard EN 10088-3:2014
ApplicationsGeneral purposes, semi-finished products, bars, rods, wire, sections and bright products
Equivalent / Similar Grades
Grade Standard Region Live on M-EX
EN 10088-1 X6CrNiMoNb17-12-2 EN 10088-1:2014 Europe (CEN) No activity yet
BS 970 (Part 3) 316S31 BS 970 (Part 3):1991 UK No activity yet
BS 970 (Part 3) 320S31 BS 970 (Part 3):1991 UK No activity yet
EN 10088-1 X6CrNiMoTi17-12-2 EN 10088-1:2014 Europe (CEN) No activity yet
EN 10088-1 X5CrNiMo17-12-2 EN 10088-1:2014 Europe (CEN) 3 listings, 0 RFQs →
Grade ComparisonCompare With a Specific Grade →
Grade Standard Match
EN 10088-1 X6CrNiMoTi17-12-2 EN 10088-1:2014 Strong Match
EN 10088-1 X6CrNiMoNb17-12-2 EN 10088-1:2014 Strong Match
EN 10088-1 X6CrNiMoTi17-12-2 EN 10088-1:2023 Strong Match
EN 10088-1 X6CrNiMoNb17-12-2 EN 10088-1:2023 Strong Match
BS 970 (Part 3) 316S31 BS 970 (Part 3):1991 Strong Match
BS 970 (Part 1) 316S31 BS 970 (Part 1):1983 Strong Match
BS 970 (Part 3) 320S31 BS 970 (Part 3):1991 Strong Match
BS 970 (Part 1) 320S31 BS 970 (Part 1):1983 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 Mo Ni Nb
<=0.08 <=1.00 <=2.00 <=0.045 <=0.015 16.5-18.5 2.00-2.50 10.5-13.5 <=1.00
Mechanical Properties
Tensile Strength 510-740 MPa
Yield Strength >=215 MPa
Elongation >=35%
Hardness <=230 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 diameter 2 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 160230215250510 to 74035-100-
over 160 to 250230215250510 to 740-30-60
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
Proof strength at elevated temperature 10 temperatures
Temperature (deg C)Rp0.2 min (MPa)Rp1.0 min (MPa)
100186221
150177206
200167196
250157186
300145175
350140169
400135164
450131160
500129158
550127157
Minimum values, solution annealed (+AT).
Source: EN 10088-3:2014, Table 20
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
1020 to 1120 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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