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S31266 Stainless Steel vs. ACI-ASTM CB30 Steel

Both S31266 stainless steel and ACI-ASTM CB30 steel are iron alloys. They have 62% 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 S31266 stainless steel and the bottom bar is ACI-ASTM CB30 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
200
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 81
77
Tensile Strength: Ultimate (UTS), MPa 860
500
Tensile Strength: Yield (Proof), MPa 470
230

Thermal Properties

Latent Heat of Fusion, J/g 310
290
Maximum Temperature: Corrosion, °C 440
420
Maximum Temperature: Mechanical, °C 1100
940
Melting Completion (Liquidus), °C 1470
1430
Melting Onset (Solidus), °C 1420
1380
Specific Heat Capacity, J/kg-K 460
480
Thermal Conductivity, W/m-K 12
21
Thermal Expansion, µm/m-K 16
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.8
2.5
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
3.0

Otherwise Unclassified Properties

Base Metal Price, % relative 37
10
Density, g/cm3 8.2
7.7
Embodied Carbon, kg CO2/kg material 6.5
2.3
Embodied Energy, MJ/kg 89
33
Embodied Water, L/kg 220
130

Common Calculations

PREN (Pitting Resistance) 54
20
Resilience: Unit (Modulus of Resilience), kJ/m3 540
140
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 29
18
Strength to Weight: Bending, points 24
18
Thermal Diffusivity, mm2/s 3.1
5.6
Thermal Shock Resistance, points 18
17

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.3
Chromium (Cr), % 23 to 25
18 to 21
Copper (Cu), % 1.0 to 2.5
0 to 1.2
Iron (Fe), % 34.1 to 46
72.9 to 82
Manganese (Mn), % 2.0 to 4.0
0 to 1.0
Molybdenum (Mo), % 5.2 to 6.2
0
Nickel (Ni), % 21 to 24
0 to 2.0
Nitrogen (N), % 0.35 to 0.6
0
Phosphorus (P), % 0 to 0.035
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.5
Sulfur (S), % 0 to 0.020
0 to 0.040
Tungsten (W), % 1.5 to 2.5
0