EN 1.4374 (X8CrMnNiN18-9-5) Stainless Steel
Austenitic & General Stainless Steels
Property Overview
Density7.7g/cm³
Elastic Modulus200GPa
Tensile Strength800MPa
Yield Strength350MPa
Brinell Hardness260HB
Maximum Service Temperature920°C
Chemical Composition
C
0.050 to 0.1%
CR
17.5 to 18.5%
NI
5.0 to 6.0%
MO
0 to 0.5%
MN
9.0 to 10%
SI
0.3 to 0.6%
N
0.25 to 0.32%
P
0 to 0.035%
S
0 to 0.030%
CU
0 to 0.4%
FE
63.5 to 67.9%
Mechanical
A - Min. elongation at fracture (%) (+A)
35
+A
Elastic (Young's, Tensile) Modulus
200 GPa
Elongation at Break
40 %
Fatigue Strength
340 MPa
Impact Strength: V-Notched Charpy
90 J
Poisson's Ratio
0.28
R p0.2 0.2% proof strength (MPa) (+A)
350
+A
Rm - Tensile strength (MPa) (+A)
700-900
+A
Shear Modulus
77 GPa
Shear Strength
550 MPa
Tensile Strength: Ultimate (UTS)
800 MPa
Tensile Strength: Yield (Proof)
400 MPa
Hardness
+A Soft annealed +AC Annealed to achieve spheroidization of the carbides +AR As rolled +AT Solution annealed +C Cold drawn / hard +CR Cold rolled +FP Treated to ferrite-pearlite structure and hardness range +I Isothermal annealing +LC Cold drawn / soft +M Thermo mechanical rolling +N Normalized +NT Normalized and tempered
+P Precipitation hardened +PE Peeled +QA Air quenched and tempered +QL Liquid quenched and tempered +QT Quenched and tempered +S Treated to improve shearability +SH As rolled and turned +SR Cold drawn and stress relieved +T Tempered +TH Treated to hardness range +WW Warm worked +U Untreated
+A
Brinell Hardness
230
Brinell hardness (HB): (+A)
260
+A
Physical
Density
7.7 g/cm 3
Thermal
Latent Heat of Fusion
290 J/g
Maximum Temperature: Corrosion
410 °C
Maximum Temperature: Mechanical
920 °C
Melting Completion (Liquidus)
1400 °C
Melting Onset (Solidus)
1360 °C
Specific Heat Capacity
480 J/kg-K
Thermal Conductivity
15 W/m-K
Thermal Diffusivity
4.0 mm 2 /s
Thermal Expansion
17 µm/m-K
Thermal Shock Resistance
17 points
Electrical
Electrical Conductivity: Equal Volume
2.4 % IACS
Electrical Conductivity: Equal Weight (Specific)
2.9 % IACS
Calculated
PREN (Pitting Resistance)
23
Resilience: Ultimate (Unit Rupture Work)
270 MJ/m 3
Resilience: Unit (Modulus of Resilience)
400 kJ/m 3
Stiffness to Weight: Axial
14 points
Stiffness to Weight: Bending
25 points
Strength to Weight: Axial
29 points
Strength to Weight: Bending
25 points
Environmental
Base Metal Price
14 % relative
Embodied Carbon
2.9 kg CO 2 /kg material
Embodied Energy
42 MJ/kg
Embodied Energy
42 MJ/kg 18 x 10 3 BTU/lb
Embodied Water
150 L/kg
Embodied Water
150 L/kg 18 gal/lb
Registered Designations & Aliases
1.43741.4374EN 1.4374 (X8CrMnNiN18-9-5) Stainless SteelX8CrMnNiN18-9-5X8CrMnNiN18-9-5
Standards
EN 10088-1 EN 10088-1: 2005 Stainless steels. List of stainless steels
EN 10088-1 EN 10088-1: Stainless steels - Part 1: List of stainless steels
EN 10088-3 EN 10088-3: 2005 Stainless steels. Technical delivery conditions for semi-finished products, bars, rods, wire, sections and bright products of corrosion resisting steels for general purposes
EN 10088-3 EN 10088-3: Stainless steels - Part 3: Technical delivery conditions for semi-finished products, bars, rods, wire, sections and bright products of corrosion resisting steels for general purposes