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ACI-ASTM CG12 Steel vs. S41050 Stainless Steel

Both ACI-ASTM CG12 steel and S41050 stainless steel are iron alloys. They have 79% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CG12 steel and the bottom bar is S41050 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160
160
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 40
25
Fatigue Strength, MPa 190
160
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 78
76
Tensile Strength: Ultimate (UTS), MPa 550
470
Tensile Strength: Yield (Proof), MPa 220
230

Thermal Properties

Latent Heat of Fusion, J/g 300
270
Maximum Temperature: Corrosion, °C 430
390
Maximum Temperature: Mechanical, °C 1040
720
Melting Completion (Liquidus), °C 1410
1440
Melting Onset (Solidus), °C 1370
1400
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
27
Thermal Expansion, µm/m-K 16
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 18
7.0
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.3
1.9
Embodied Energy, MJ/kg 48
27
Embodied Water, L/kg 160
97

Common Calculations

PREN (Pitting Resistance) 22
12
Resilience: Ultimate (Unit Rupture Work), MJ/m3 180
98
Resilience: Unit (Modulus of Resilience), kJ/m3 120
140
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 20
17
Strength to Weight: Bending, points 19
17
Thermal Diffusivity, mm2/s 4.0
7.2
Thermal Shock Resistance, points 12
17

Alloy Composition

Carbon (C), % 0 to 0.12
0 to 0.040
Chromium (Cr), % 20 to 23
10.5 to 12.5
Iron (Fe), % 60.3 to 70
84.2 to 88.9
Manganese (Mn), % 0 to 1.5
0 to 1.0
Nickel (Ni), % 10 to 13
0.6 to 1.1
Nitrogen (N), % 0
0 to 0.1
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0 to 2.0
0 to 1.0
Sulfur (S), % 0 to 0.040
0 to 0.030