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ACI-ASTM CA40 Steel vs. S33228 Stainless Steel

Both ACI-ASTM CA40 steel and S33228 stainless steel are iron alloys. They have 53% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CA40 steel and the bottom bar is S33228 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 310
190
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 10
34
Fatigue Strength, MPa 460
170
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
79
Tensile Strength: Ultimate (UTS), MPa 910
570
Tensile Strength: Yield (Proof), MPa 860
210

Thermal Properties

Latent Heat of Fusion, J/g 280
310
Maximum Temperature: Corrosion, °C 390
560
Maximum Temperature: Mechanical, °C 750
1100
Melting Completion (Liquidus), °C 1440
1410
Melting Onset (Solidus), °C 1500
1360
Specific Heat Capacity, J/kg-K 480
470
Thermal Expansion, µm/m-K 10
16

Otherwise Unclassified Properties

Base Metal Price, % relative 7.5
37
Density, g/cm3 7.7
8.0
Embodied Carbon, kg CO2/kg material 2.0
6.2
Embodied Energy, MJ/kg 28
89
Embodied Water, L/kg 100
220

Common Calculations

PREN (Pitting Resistance) 14
27
Resilience: Ultimate (Unit Rupture Work), MJ/m3 89
150
Resilience: Unit (Modulus of Resilience), kJ/m3 1910
110
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 33
20
Strength to Weight: Bending, points 27
19
Thermal Shock Resistance, points 33
13

Alloy Composition

Aluminum (Al), % 0
0 to 0.025
Carbon (C), % 0.2 to 0.4
0.040 to 0.080
Cerium (Ce), % 0
0.050 to 0.1
Chromium (Cr), % 11.5 to 14
26 to 28
Iron (Fe), % 81.5 to 88.3
36.5 to 42.3
Manganese (Mn), % 0 to 1.0
0 to 1.0
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 0 to 1.0
31 to 33
Niobium (Nb), % 0
0.6 to 1.0
Phosphorus (P), % 0 to 0.040
0 to 0.020
Silicon (Si), % 0 to 1.5
0 to 0.3
Sulfur (S), % 0 to 0.040
0 to 0.015