ACI-ASTM CC50 (J92615) Cast Stainless Steel
ACI-ASTM CC50 steel is a ferritic stainless steel formulated for casting. Cited properties are appropriate for the heat treated (HT) condition. CC50 is the designation in both the ACI and ASTM systems for this material. J92615 is the UNS number.
The graph bars on the material properties cards below compare ACI-ASTM CC50 steel to: cast ferritic stainless steels (top), all iron alloys (middle), and the entire database (bottom). A full bar means this is the highest value in the relevant set. A half-full bar means it's 50% of the highest, and so on.
Mechanical Properties
Brinell Hardness
210
Elastic (Young's, Tensile) Modulus
200 GPa 29 x 106 psi
Poisson's Ratio
0.27
Shear Modulus
80 GPa 12 x 106 psi
Tensile Strength: Ultimate (UTS)
430 MPa 63 x 103 psi
Thermal Properties
Latent Heat of Fusion
300 J/g
Maximum Temperature: Corrosion
460 °C 850 °F
Maximum Temperature: Mechanical
1100 °C 2010 °F
Melting Completion (Liquidus)
1420 °C 2580 °F
Melting Onset (Solidus)
1370 °C 2500 °F
Specific Heat Capacity
490 J/kg-K 0.12 BTU/lb-°F
Thermal Conductivity
17 W/m-K 9.8 BTU/h-ft-°F
Thermal Expansion
11 µm/m-K
Electrical Properties
Electrical Conductivity: Equal Volume
2.3 % IACS
Electrical Conductivity: Equal Weight (Specific)
2.7 % IACS
Otherwise Unclassified Properties
Base Metal Price
14 % relative
Density
7.6 g/cm3 480 lb/ft3
Embodied Carbon
2.7 kg CO2/kg material
Embodied Energy
39 MJ/kg 17 x 103 BTU/lb
Embodied Water
170 L/kg 20 gal/lb
Common Calculations
PREN (Pitting Resistance)
28
Stiffness to Weight: Axial
15 points
Stiffness to Weight: Bending
26 points
Strength to Weight: Axial
16 points
Strength to Weight: Bending
17 points
Thermal Diffusivity
4.5 mm2/s
Thermal Shock Resistance
14 points
Alloy Composition
Among cast stainless steels, the composition of ACI-ASTM CC50 steel is notable for containing a comparatively high amount of chromium (Cr). Chromium is the defining alloying element of stainless steel. Higher chromium content imparts additional corrosion resistance.
Fe | 62.9 to 74 | |
Cr | 26 to 30 | |
Ni | 0 to 4.0 | |
Si | 0 to 1.5 | |
Mn | 0 to 1.0 | |
C | 0 to 0.5 | |
P | 0 to 0.040 | |
S | 0 to 0.040 |
All values are % weight. Ranges represent what is permitted under applicable standards.
Followup Questions
Similar Alloys
Further Reading
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
Properties and Selection: Irons, Steels and High Performance Alloys, ASM Handbook vol. 1, ASM International, 1993
Corrosion of Stainless Steels, A. John Sedriks, 1996
ASM Specialty Handbook: Stainless Steels, J. R. Davis (editor), 1994
Advances in Stainless Steels, Baldev Raj et al. (editors), 2010