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ACI-ASTM CA28MWV Steel vs. S32950 Stainless Steel

Both ACI-ASTM CA28MWV steel and S32950 stainless steel are iron alloys. They have 80% of their average alloy composition in common. There are 32 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 CA28MWV steel and the bottom bar is S32950 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 330
260
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 11
17
Fatigue Strength, MPa 470
330
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 76
80
Tensile Strength: Ultimate (UTS), MPa 1080
780
Tensile Strength: Yield (Proof), MPa 870
550

Thermal Properties

Latent Heat of Fusion, J/g 270
300
Maximum Temperature: Corrosion, °C 380
460
Maximum Temperature: Mechanical, °C 740
1100
Melting Completion (Liquidus), °C 1470
1430
Melting Onset (Solidus), °C 1430
1390
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 25
16
Thermal Expansion, µm/m-K 10
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 4.6
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 5.3
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 11
17
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 3.1
3.4
Embodied Energy, MJ/kg 44
47
Embodied Water, L/kg 100
180

Common Calculations

PREN (Pitting Resistance) 17
37
Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
120
Resilience: Unit (Modulus of Resilience), kJ/m3 1920
730
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 38
28
Strength to Weight: Bending, points 30
24
Thermal Diffusivity, mm2/s 6.6
4.3
Thermal Shock Resistance, points 40
21

Alloy Composition

Carbon (C), % 0.2 to 0.28
0 to 0.030
Chromium (Cr), % 11 to 12.5
26 to 29
Iron (Fe), % 81.4 to 85.8
60.3 to 69.4
Manganese (Mn), % 0.5 to 1.0
0 to 2.0
Molybdenum (Mo), % 0.9 to 1.3
1.0 to 2.5
Nickel (Ni), % 0.5 to 1.0
3.5 to 5.2
Nitrogen (N), % 0
0.15 to 0.35
Phosphorus (P), % 0 to 0.030
0 to 0.035
Silicon (Si), % 0 to 1.0
0 to 0.6
Sulfur (S), % 0 to 0.030
0 to 0.010
Tungsten (W), % 0.9 to 1.3
0
Vanadium (V), % 0.2 to 0.3
0