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S31727 Stainless Steel vs. ACI-ASTM CB30 Steel

Both S31727 stainless steel and ACI-ASTM CB30 steel are iron alloys. They have 78% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is S31727 stainless steel and the bottom bar is ACI-ASTM CB30 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
210
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 630
500
Tensile Strength: Yield (Proof), MPa 270
230

Thermal Properties

Latent Heat of Fusion, J/g 290
290
Maximum Temperature: Corrosion, °C 420
420
Maximum Temperature: Mechanical, °C 1010
940
Melting Completion (Liquidus), °C 1440
1430
Melting Onset (Solidus), °C 1390
1380
Specific Heat Capacity, J/kg-K 470
480
Thermal Expansion, µm/m-K 16
11

Otherwise Unclassified Properties

Base Metal Price, % relative 24
10
Density, g/cm3 8.0
7.7
Embodied Carbon, kg CO2/kg material 4.7
2.3
Embodied Energy, MJ/kg 64
33
Embodied Water, L/kg 180
130

Common Calculations

PREN (Pitting Resistance) 35
20
Resilience: Unit (Modulus of Resilience), kJ/m3 190
140
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 22
18
Strength to Weight: Bending, points 20
18
Thermal Shock Resistance, points 14
17

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.3
Chromium (Cr), % 17.5 to 19
18 to 21
Copper (Cu), % 2.8 to 4.0
0 to 1.2
Iron (Fe), % 53.7 to 61.3
72.9 to 82
Manganese (Mn), % 0 to 1.0
0 to 1.0
Molybdenum (Mo), % 3.8 to 4.5
0
Nickel (Ni), % 14.5 to 16.5
0 to 2.0
Nitrogen (N), % 0.15 to 0.21
0
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.5
Sulfur (S), % 0 to 0.030
0 to 0.040