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ACI-ASTM CG3M Steel vs. S41041 Stainless Steel

Both ACI-ASTM CG3M steel and S41041 stainless steel are iron alloys. Both are furnished in the heat treated (HT) condition. They have 78% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CG3M steel and the bottom bar is S41041 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
240
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 28
17
Fatigue Strength, MPa 200
350
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 79
76
Tensile Strength: Ultimate (UTS), MPa 580
910
Tensile Strength: Yield (Proof), MPa 270
580

Thermal Properties

Latent Heat of Fusion, J/g 300
270
Maximum Temperature: Corrosion, °C 420
430
Maximum Temperature: Mechanical, °C 1020
740
Melting Completion (Liquidus), °C 1450
1450
Melting Onset (Solidus), °C 1400
1410
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 15
29
Thermal Expansion, µm/m-K 16
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 20
8.5
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 4.1
2.2
Embodied Energy, MJ/kg 56
31
Embodied Water, L/kg 160
100

Common Calculations

PREN (Pitting Resistance) 31
13
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
140
Resilience: Unit (Modulus of Resilience), kJ/m3 190
860
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 20
32
Strength to Weight: Bending, points 20
27
Thermal Diffusivity, mm2/s 4.1
7.8
Thermal Shock Resistance, points 13
33

Alloy Composition

Aluminum (Al), % 0
0 to 0.050
Carbon (C), % 0 to 0.030
0.13 to 0.18
Chromium (Cr), % 18 to 21
11.5 to 13
Iron (Fe), % 58.9 to 70
84.5 to 87.8
Manganese (Mn), % 0 to 1.5
0.4 to 0.6
Molybdenum (Mo), % 3.0 to 4.0
0 to 0.2
Nickel (Ni), % 9.0 to 13
0 to 0.5
Niobium (Nb), % 0
0.15 to 0.45
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 1.5
0 to 0.5
Sulfur (S), % 0 to 0.040
0 to 0.030