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ACI-ASTM CG3M Steel vs. N08811 Stainless Steel

Both ACI-ASTM CG3M steel and N08811 stainless steel are iron alloys. They have 77% of their average alloy composition in common. There are 31 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 N08811 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 28
33
Fatigue Strength, MPa 200
150
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 79
77
Tensile Strength: Ultimate (UTS), MPa 580
510
Tensile Strength: Yield (Proof), MPa 270
190

Thermal Properties

Latent Heat of Fusion, J/g 300
300
Maximum Temperature: Corrosion, °C 420
490
Maximum Temperature: Mechanical, °C 1020
1100
Melting Completion (Liquidus), °C 1450
1390
Melting Onset (Solidus), °C 1400
1360
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 15
12
Thermal Expansion, µm/m-K 16
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
2.0

Otherwise Unclassified Properties

Base Metal Price, % relative 20
30
Density, g/cm3 7.9
8.0
Embodied Carbon, kg CO2/kg material 4.1
5.3
Embodied Energy, MJ/kg 56
76
Embodied Water, L/kg 160
200

Common Calculations

PREN (Pitting Resistance) 31
21
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
130
Resilience: Unit (Modulus of Resilience), kJ/m3 190
94
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 20
18
Strength to Weight: Bending, points 20
18
Thermal Diffusivity, mm2/s 4.1
3.0
Thermal Shock Resistance, points 13
13

Alloy Composition

Aluminum (Al), % 0
0.15 to 0.6
Carbon (C), % 0 to 0.030
0.060 to 0.1
Chromium (Cr), % 18 to 21
19 to 23
Copper (Cu), % 0
0 to 0.75
Iron (Fe), % 58.9 to 70
39.5 to 50.6
Manganese (Mn), % 0 to 1.5
0 to 1.5
Molybdenum (Mo), % 3.0 to 4.0
0
Nickel (Ni), % 9.0 to 13
30 to 35
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.5
0 to 1.0
Sulfur (S), % 0 to 0.040
0 to 0.015
Titanium (Ti), % 0
0.15 to 0.6