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ACI-ASTM CC50 Steel vs. S35125 Stainless Steel

Both ACI-ASTM CC50 steel and S35125 stainless steel are iron alloys. They have 65% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CC50 steel and the bottom bar is S35125 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 80
78
Tensile Strength: Ultimate (UTS), MPa 430
540

Thermal Properties

Latent Heat of Fusion, J/g 300
300
Maximum Temperature: Corrosion, °C 460
490
Maximum Temperature: Mechanical, °C 1100
1100
Melting Completion (Liquidus), °C 1420
1430
Melting Onset (Solidus), °C 1370
1380
Specific Heat Capacity, J/kg-K 490
470
Thermal Conductivity, W/m-K 17
12
Thermal Expansion, µm/m-K 11
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 14
36
Density, g/cm3 7.6
8.1
Embodied Carbon, kg CO2/kg material 2.7
6.4
Embodied Energy, MJ/kg 39
89
Embodied Water, L/kg 170
210

Common Calculations

PREN (Pitting Resistance) 28
30
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 26
24
Strength to Weight: Axial, points 16
19
Strength to Weight: Bending, points 17
18
Thermal Diffusivity, mm2/s 4.5
3.1
Thermal Shock Resistance, points 14
12

Alloy Composition

Carbon (C), % 0 to 0.5
0 to 0.1
Chromium (Cr), % 26 to 30
20 to 23
Iron (Fe), % 62.9 to 74
36.2 to 45.8
Manganese (Mn), % 0 to 1.0
1.0 to 1.5
Molybdenum (Mo), % 0
2.0 to 3.0
Nickel (Ni), % 0 to 4.0
31 to 35
Niobium (Nb), % 0
0.25 to 0.6
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0 to 1.5
0 to 0.5
Sulfur (S), % 0 to 0.040
0 to 0.015