ACI-ASTM CK20 (J94202) Cast Stainless Steel
Austenitic & General Stainless Steels
Property Overview
Density7.8g/cm³
Elastic Modulus200GPa
Tensile Strength530MPa
Yield Strength260MPa
Brinell Hardness150HB
Maximum Service Temperature1100°C
Chemical Composition
C
0 to 0.2%
CR
23 to 27%
NI
19 to 22%
MO
0 to 0.5%
MN
0 to 2.0%
SI
0 to 2.0%
P
0 to 0.040%
S
0 to 0.040%
FE
46.7 to 58%
Mechanical
Elastic (Young's, Tensile) Modulus
200 GPa
Elongation at Break
37 %
Fatigue Strength
220 MPa
Poisson's Ratio
0.28
Shear Modulus
78 GPa
Tensile Strength: Ultimate (UTS)
530 MPa
Tensile Strength: Yield (Proof)
260 MPa
Hardness
Brinell Hardness
150
Physical
Density
7.8 g/cm 3
Thermal
Latent Heat of Fusion
310 J/g
Maximum Temperature: Corrosion
440 °C
Maximum Temperature: Mechanical
1100 °C
Melting Completion (Liquidus)
1400 °C
Melting Onset (Solidus)
1430 °C
Specific Heat Capacity
480 J/kg-K
Thermal Conductivity
14 W/m-K
Thermal Diffusivity
3.7 mm 2 /s
Thermal Expansion
15 µm/m-K
Thermal Shock Resistance
13 points
Electrical
Electrical Conductivity: Equal Volume
2.0 % IACS
Electrical Conductivity: Equal Weight (Specific)
2.3 % IACS
Calculated
PREN (Pitting Resistance)
26
Resilience: Ultimate (Unit Rupture Work)
160 MJ/m 3
Resilience: Unit (Modulus of Resilience)
170 kJ/m 3
Stiffness to Weight: Axial
14 points
Stiffness to Weight: Bending
25 points
Strength to Weight: Axial
19 points
Strength to Weight: Bending
19 points
Environmental
Base Metal Price
25 % relative
Embodied Carbon
4.4 kg CO 2 /kg material
Embodied Energy
62 MJ/kg
Embodied Energy
62 MJ/kg 27 x 10 3 BTU/lb
Embodied Water
190 L/kg
Embodied Water
190 L/kg 23 gal/lb
Registered Designations & Aliases
ACI-ASTM CK20 (J94202) Cast Stainless SteelJ94202
Standards
ASTM A743 ASTM A743: Standard Specification for Castings, Iron-Chromium, Iron-Chromium-Nickel, Corrosion Resistant, for General Application
ASTM A743 ASTM A743: Standard Specification for Castings, Iron-Chromium, Iron-Chromium-Nickel, Corrosion Resistant, for General Application Welding Metallurgy of Stainless Steels, Erich Folkhard et al., 2012