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
N
Nb
<=0.08
<=1.00
<=1.00
<=0.040
<=0.015
16.0-18.0
0.80-1.40
<=0.040
<=1.00
Mechanical Properties
Tensile Strength
480-680 MPa
Yield Strength
>=300 MPa
Elongation
>=15%
Hardness
<=200 HB
Condition
Annealed (+A), conditions 1C, 1E, 1D, 1X, 1G and 2D, thickness or diameter up to 50 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 diameter1 size range
Thickness or diameter, max (mm)
Hardness HBW, max (guidance)
Rp0.2 min (MPa)
Rm (MPa)
A min, longitudinal (%)
up to 50
200
300
480 to 680
15
Annealed, conditions 1C, 1E, 1D, 1X, 1G and 2D; for rods only the tensile strength values apply.
Source: EN 10088-3:2014, Table 10
Bright bars, annealed4 size ranges
Thickness or diameter (mm)
Rp0.2 min (MPa)
Rm (MPa)
A5 min (%)
up to 10
340
540 to 700
8
over 10 to 16
320
500 to 700
12
over 16 to 40
280
440 to 700
15
over 40 to 50
280
440 to 700
15
Bright bars, conditions 2H, 2B, 2G or 2P; A5 valid for 5 mm and above.
Source: EN 10088-3:2014, Table 15
Proof strength at elevated temperature7 temperatures
Temperature (deg C)
Rp0.2 min (MPa)
100
270
150
265
200
250
250
235
300
215
350
205
400
-
Minimum values, annealed (+A).
Source: EN 10088-3:2014, Table 22
Hot forming and annealingguideline temperatures
Hot forming temperature
1100 to 800 deg C
Cooling after hot forming
air
Heat treatment symbol
+A
Annealing temperature
800 to 860 deg C
Cooling after annealing
air
Informative guideline.
Source: EN 10088-3:2014, Table A.3
Active EN 10088-3:2014 X6CrMoNb17-1 Listings on M-EX (For Sale)