EN 1.4837 (GX40CrNiSi25-12) Cast Stainless Steel
Other Steels
Property Overview
Density7.7g/cm³
Elastic Modulus200GPa
Tensile Strength450MPa
Yield Strength250MPa
Brinell Hardness150HB
Maximum Service Temperature1050°C
Chemical Composition
C
0.3 to 0.5%
CR
24 to 27%
NI
11 to 14%
MO
0 to 0.5%
MN
0 to 2.0%
SI
1.0 to 2.5%
P
0 to 0.040%
S
0 to 0.030%
FE
53.4 to 63.7%
Mechanical
A - Min. elongation at fracture (%)
6
Elastic (Young's, Tensile) Modulus
200 GPa
Elongation at Break
6.8 %
Fatigue Strength
120 MPa
Poisson's Ratio
0.27
R p0.2 0.2% proof strength (MPa)
220
Rm - Tensile strength (MPa)
450
Shear Modulus
78 GPa
Tensile Strength: Ultimate (UTS)
500 MPa
Tensile Strength: Yield (Proof)
250 MPa
Hardness
Brinell Hardness
150
Physical
Density
7.7 g/cm 3
Thermal
Latent Heat of Fusion
320 J/g
Maximum Temperature: Corrosion
440 °C
Maximum Temperature: Mechanical
1050 °C
Melting Completion (Liquidus)
1390 °C
Melting Onset (Solidus)
1350 °C
Specific Heat Capacity
490 J/kg-K
Thermal Conductivity
14 W/m-K
Thermal Diffusivity
3.7 mm 2 /s
Thermal Expansion
16 µm/m-K
Thermal Shock Resistance
11 points
Electrical
Electrical Conductivity: Equal Volume
2.0 % IACS
Electrical Conductivity: Equal Weight (Specific)
2.4 % IACS
Calculated
PREN (Pitting Resistance)
26
Resilience: Ultimate (Unit Rupture Work)
29 MJ/m 3
Resilience: Unit (Modulus of Resilience)
160 kJ/m 3
Stiffness to Weight: Axial
14 points
Stiffness to Weight: Bending
25 points
Strength to Weight: Axial
18 points
Strength to Weight: Bending
18 points
Environmental
Base Metal Price
20 % relative
Embodied Carbon
3.7 kg CO 2 /kg material
Embodied Energy
53 MJ/kg
Embodied Energy
53 MJ/kg 23 x 10 3 BTU/lb
Embodied Water
180 L/kg
Embodied Water
180 L/kg 21 gal/lb
Registered Designations & Aliases
1.48371.4837EN 1.4837 (GX40CrNiSi25-12) Cast Stainless SteelGX40CrNiSi25-12GX40CrNiSi25-12
Standards
EN 10295 EN 10295: 2002 Heat resistant steel castings
EN 10295 EN 10295: Heat Resistant Steel Castings