EN 1.4008 (GX7CrNiMo12-1) Cast Stainless Steel
Other Steels
Property Overview
Density7.8g/cm³
Elastic Modulus190GPa
Tensile Strength590MPa
Yield Strength440MPa
Brinell HardnessUnknown
Maximum Service Temperature760°C
Chemical Composition
C
0 to 0.1%
CR
12 to 13.5%
NI
1.0 to 2.0%
MO
0.2 to 0.5%
MN
0 to 1.0%
SI
0 to 1.0%
P
0 to 0.035%
S
0 to 0.025%
FE
81.8 to 86.8%
Mechanical
A - Min. elongation at fracture (%) (+QT)
15
+QT
Elastic (Young's, Tensile) Modulus
190 GPa
Elongation at Break
17 %
Fatigue Strength
300 MPa
Impact Strength: V-Notched Charpy
31 J
KV - Impact energy (J) (+QT)
+20° 27
+QT
Poisson's Ratio
0.28
R p0.2 0.2% proof strength (MPa) (+QT)
440
+QT
Rm - Tensile strength (MPa) (+QT)
590
+QT
Shear Modulus
76 GPa
Tensile Strength: Ultimate (UTS)
670 MPa
Tensile Strength: Yield (Proof)
500 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
280 J/g
Maximum Temperature: Corrosion
390 °C
Maximum Temperature: Mechanical
760 °C
Melting Completion (Liquidus)
1450 °C
Melting Onset (Solidus)
1400 °C
Specific Heat Capacity
480 J/kg-K
Thermal Conductivity
25 W/m-K
Thermal Diffusivity
6.7 mm 2 /s
Thermal Expansion
11 µm/m-K
Thermal Shock Resistance
23 points
Electrical
Electrical Conductivity: Equal Volume
2.9 % IACS
Electrical Conductivity: Equal Weight (Specific)
3.3 % IACS
Calculated
PREN (Pitting Resistance)
14
Resilience: Ultimate (Unit Rupture Work)
100 MJ/m 3
Resilience: Unit (Modulus of Resilience)
630 kJ/m 3
Stiffness to Weight: Axial
14 points
Stiffness to Weight: Bending
25 points
Strength to Weight: Axial
24 points
Strength to Weight: Bending
22 points
Environmental
Base Metal Price
8.0 % relative
Embodied Carbon
2.1 kg CO 2 /kg material
Embodied Energy
30 MJ/kg
Embodied Energy
30 MJ/kg 13 x 10 3 BTU/lb
Embodied Water
100 L/kg
Embodied Water
100 L/kg 12 gal/lb
Registered Designations & Aliases
1.40081.4008EN 1.4008 (GX7CrNiMo12-1) Cast Stainless SteelGX7CrNiMo12-1GX7CrNiMo12-1
Standards
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 Corrosion of Stainless Steels, A. John Sedriks, 1996