EN 1.4740 (GX40CrSi17) Cast Stainless Steel
Other Steels
Property Overview
Density7.6g/cm³
Elastic Modulus200GPa
Tensile StrengthUnknown
Yield StrengthUnknown
Brinell Hardness300HB
Maximum Service Temperature900°C
Chemical Composition
C
0.3 to 0.5%
CR
16 to 19%
NI
0 to 1.0%
MO
0 to 0.5%
MN
0 to 1.0%
SI
1.0 to 2.5%
P
0 to 0.040%
S
0 to 0.030%
FE
75.4 to 82.7%
Mechanical
Elastic (Young's, Tensile) Modulus
200 GPa
Elongation at Break
22 %
Poisson's Ratio
0.28
Shear Modulus
77 GPa
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
260
Brinell hardness (HB): (+A)
300
+A
Physical
Density
7.6 g/cm 3
Thermal
Latent Heat of Fusion
300 J/g
Maximum Temperature: Corrosion
410 °C
Maximum Temperature: Mechanical
900 °C
Melting Completion (Liquidus)
1420 °C
Melting Onset (Solidus)
1370 °C
Specific Heat Capacity
490 J/kg-K
Thermal Conductivity
18 W/m-K
Thermal Diffusivity
4.8 mm 2 /s
Thermal Expansion
10 µm/m-K
Electrical
Electrical Conductivity: Equal Volume
2.2 % IACS
Electrical Conductivity: Equal Weight (Specific)
2.6 % IACS
Calculated
PREN (Pitting Resistance)
18
Stiffness to Weight: Axial
14 points
Stiffness to Weight: Bending
25 points
Environmental
Base Metal Price
9.5 % relative
Embodied Carbon
2.3 kg CO 2 /kg material
Embodied Energy
32 MJ/kg
Embodied Energy
32 MJ/kg 14 x 10 3 BTU/lb
Embodied Water
120 L/kg
Embodied Water
120 L/kg 15 gal/lb
Registered Designations & Aliases
1.47401.4740EN 1.4740 (GX40CrSi17) Cast Stainless SteelGX40CrSi17GX40CrSi17
Standards
EN 10295 EN 10295: 2002 Heat resistant steel castings
EN 10295 EN 10295: Heat Resistant Steel Castings
EN 10295 EN 10295: Heat Resistant Steel Castings Metallic Materials: Physical, Mechanical, and Corrosion Properties, Philip A. Schweitzer, 2003 Creep-Resistant Steels, Fujio Abe et al. (editors), 2008 Corrosion of Stainless Steels, A. John Sedriks, 1996