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ACI-ASTM CE30 Steel vs. S82031 Stainless Steel

Both ACI-ASTM CE30 steel and S82031 stainless steel are iron alloys. They have 85% 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 CE30 steel and the bottom bar is S82031 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 11
39
Fatigue Strength, MPa 170
490
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 79
78
Tensile Strength: Ultimate (UTS), MPa 630
780
Tensile Strength: Yield (Proof), MPa 310
570

Thermal Properties

Latent Heat of Fusion, J/g 310
290
Maximum Temperature: Corrosion, °C 460
430
Maximum Temperature: Mechanical, °C 1100
980
Melting Completion (Liquidus), °C 1410
1430
Melting Onset (Solidus), °C 1360
1390
Specific Heat Capacity, J/kg-K 490
480
Thermal Conductivity, W/m-K 14
15
Thermal Expansion, µm/m-K 17
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 19
13
Density, g/cm3 7.7
7.7
Embodied Carbon, kg CO2/kg material 3.4
2.8
Embodied Energy, MJ/kg 49
39
Embodied Water, L/kg 180
150

Common Calculations

PREN (Pitting Resistance) 28
27
Resilience: Ultimate (Unit Rupture Work), MJ/m3 59
280
Resilience: Unit (Modulus of Resilience), kJ/m3 240
820
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 23
28
Strength to Weight: Bending, points 21
24
Thermal Diffusivity, mm2/s 3.6
3.9
Thermal Shock Resistance, points 13
22

Alloy Composition

Carbon (C), % 0 to 0.3
0 to 0.050
Chromium (Cr), % 26 to 30
19 to 22
Copper (Cu), % 0
0 to 1.0
Iron (Fe), % 55.1 to 66
68 to 78.3
Manganese (Mn), % 0 to 1.5
0 to 2.5
Molybdenum (Mo), % 0
0.6 to 1.4
Nickel (Ni), % 8.0 to 11
2.0 to 4.0
Nitrogen (N), % 0
0.14 to 0.24
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 2.0
0 to 0.8
Sulfur (S), % 0 to 0.040
0 to 0.0050