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S82012 Stainless Steel vs. ACI-ASTM CB30 Steel

Both S82012 stainless steel and ACI-ASTM CB30 steel are iron alloys. They have a very high 97% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is S82012 stainless steel and the bottom bar is ACI-ASTM CB30 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 78
77
Tensile Strength: Ultimate (UTS), MPa 800
500
Tensile Strength: Yield (Proof), MPa 560
230

Thermal Properties

Latent Heat of Fusion, J/g 280
290
Maximum Temperature: Corrosion, °C 420
420
Maximum Temperature: Mechanical, °C 950
940
Melting Completion (Liquidus), °C 1430
1430
Melting Onset (Solidus), °C 1380
1380
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
21
Thermal Expansion, µm/m-K 13
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
2.5
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
3.0

Otherwise Unclassified Properties

Base Metal Price, % relative 11
10
Density, g/cm3 7.7
7.7
Embodied Carbon, kg CO2/kg material 2.4
2.3
Embodied Energy, MJ/kg 35
33
Embodied Water, L/kg 140
130

Common Calculations

PREN (Pitting Resistance) 24
20
Resilience: Unit (Modulus of Resilience), kJ/m3 790
140
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 29
18
Strength to Weight: Bending, points 25
18
Thermal Diffusivity, mm2/s 3.9
5.6
Thermal Shock Resistance, points 23
17

Alloy Composition

Carbon (C), % 0 to 0.050
0 to 0.3
Chromium (Cr), % 19 to 20.5
18 to 21
Copper (Cu), % 0 to 1.0
0 to 1.2
Iron (Fe), % 71.3 to 77.9
72.9 to 82
Manganese (Mn), % 2.0 to 4.0
0 to 1.0
Molybdenum (Mo), % 0.1 to 0.6
0
Nickel (Ni), % 0.8 to 1.5
0 to 2.0
Nitrogen (N), % 0.16 to 0.26
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 0.8
0 to 1.5
Sulfur (S), % 0 to 0.0050
0 to 0.040