EN 1.4469 (GX2CrNiMoN26-7-4) Cast Stainless Steel
Other Steels
Property Overview
Density7.8g/cm³
Elastic Modulus210GPa
Tensile Strength740MPa
Yield Strength480MPa
Brinell HardnessUnknown
Maximum Service Temperature1100°C
Chemical Composition
C
0 to 0.030%
CR
25 to 27%
NI
6.0 to 8.0%
MO
3.0 to 5.0%
MN
0 to 1.0%
SI
0 to 1.0%
N
0.12 to 0.22%
P
0 to 0.035%
S
0 to 0.025%
CU
0 to 1.3%
FE
56.4 to 65.9%
Mechanical
A - Min. elongation at fracture (%) (+AT)
22
+AT
Elastic (Young's, Tensile) Modulus
210 GPa
Elongation at Break
25 %
Fatigue Strength
380 MPa
Impact Strength: V-Notched Charpy
56 J
KV - Impact energy (J) (+AT)
+20° 50
+AT
Poisson's Ratio
0.27
R p0.2 0.2% proof strength (MPa) (+AT)
480
+AT
Rm - Tensile strength (MPa) (+AT)
650-850
+AT
Shear Modulus
81 GPa
Tensile Strength: Ultimate (UTS)
740 MPa
Tensile Strength: Yield (Proof)
550 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
Physical
Density
7.8 g/cm 3
Thermal
Latent Heat of Fusion
300 J/g
Maximum Temperature: Corrosion
450 °C
Maximum Temperature: Mechanical
1100 °C
Melting Completion (Liquidus)
1450 °C
Melting Onset (Solidus)
1400 °C
Specific Heat Capacity
480 J/kg-K
Thermal Conductivity
17 W/m-K
Thermal Diffusivity
4.6 mm 2 /s
Thermal Expansion
13 µm/m-K
Thermal Shock Resistance
20 points
Electrical
Electrical Conductivity: Equal Volume
2.2 % IACS
Electrical Conductivity: Equal Weight (Specific)
2.5 % IACS
Calculated
PREN (Pitting Resistance)
42
Resilience: Ultimate (Unit Rupture Work)
170 MJ/m 3
Resilience: Unit (Modulus of Resilience)
730 kJ/m 3
Stiffness to Weight: Axial
15 points
Stiffness to Weight: Bending
25 points
Strength to Weight: Axial
26 points
Strength to Weight: Bending
23 points
Environmental
Base Metal Price
21 % relative
Embodied Carbon
4.1 kg CO 2 /kg material
Embodied Energy
57 MJ/kg
Embodied Energy
57 MJ/kg 24 x 10 3 BTU/lb
Embodied Water
180 L/kg
Embodied Water
180 L/kg 22 gal/lb
Registered Designations & Aliases
1.44691.4469EN 1.4469 (GX2CrNiMoN26-7-4) Cast Stainless SteelGX2CrNiMoN26-7-4GX2CrNiMoN26-7-4
Standards
EN 10213 EN 10213: 2007 Steel castings for pressure purposes
EN 10283 EN 10283: 2010 Corrosion resistant steel castings
EN 10283 EN 10283: Corrosion resistant steel castings
ISO 11972 ISO 11972: Corrosion-resistant cast steels for general applications
ISO 11972 ISO 11972: Corrosion-resistant cast steels for general applications EN 10283: Corrosion resistant steel castings ISO 4991: Steel castings for pressure purposes Duplex Stainless Steels, Iris Alvarez-Armas and Suzanne Degallaix-Moreuil (editors), 2009 Duplex Stainless Steels: Microstructure, Properties and Applications, Robert N. Gunn (editor), 1997 Corrosion of Stainless Steels, A. John Sedriks, 1996
ISO 4991 ISO 4991: Steel castings for pressure purposes