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ACI-ASTM CC50 Steel vs. AISI 420F Stainless Steel

Both ACI-ASTM CC50 steel and AISI 420F stainless steel are iron alloys. They have 83% of their average alloy composition in common. There are 27 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CC50 steel and the bottom bar is AISI 420F stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210
230
Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 80
76
Tensile Strength: Ultimate (UTS), MPa 430
740

Thermal Properties

Latent Heat of Fusion, J/g 300
270
Maximum Temperature: Corrosion, °C 460
390
Maximum Temperature: Mechanical, °C 1100
760
Melting Completion (Liquidus), °C 1420
1440
Melting Onset (Solidus), °C 1370
1390
Specific Heat Capacity, J/kg-K 490
480
Thermal Conductivity, W/m-K 17
25
Thermal Expansion, µm/m-K 11
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
3.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
3.7

Otherwise Unclassified Properties

Base Metal Price, % relative 14
7.0
Density, g/cm3 7.6
7.7
Embodied Carbon, kg CO2/kg material 2.7
2.0
Embodied Energy, MJ/kg 39
28
Embodied Water, L/kg 170
100

Common Calculations

PREN (Pitting Resistance) 28
14
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 26
25
Strength to Weight: Axial, points 16
27
Strength to Weight: Bending, points 17
23
Thermal Diffusivity, mm2/s 4.5
6.8
Thermal Shock Resistance, points 14
27

Alloy Composition

Carbon (C), % 0 to 0.5
0.3 to 0.4
Chromium (Cr), % 26 to 30
12 to 14
Iron (Fe), % 62.9 to 74
82.4 to 87.6
Manganese (Mn), % 0 to 1.0
0 to 1.3
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 0 to 4.0
0
Phosphorus (P), % 0 to 0.040
0 to 0.060
Silicon (Si), % 0 to 1.5
0 to 1.0
Sulfur (S), % 0 to 0.040
0.15 to 0.35