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S40930 Stainless Steel vs. ACI-ASTM CA28MWV Steel

Both S40930 stainless steel and ACI-ASTM CA28MWV steel are iron alloys. They have a very high 96% 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 S40930 stainless steel and the bottom bar is ACI-ASTM CA28MWV steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160
330
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 23
11
Fatigue Strength, MPa 130
470
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 75
76
Tensile Strength: Ultimate (UTS), MPa 430
1080
Tensile Strength: Yield (Proof), MPa 190
870

Thermal Properties

Latent Heat of Fusion, J/g 270
270
Maximum Temperature: Corrosion, °C 460
380
Maximum Temperature: Mechanical, °C 710
740
Melting Completion (Liquidus), °C 1450
1470
Melting Onset (Solidus), °C 1410
1430
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 25
25
Thermal Expansion, µm/m-K 10
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
4.6
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
5.3

Otherwise Unclassified Properties

Base Metal Price, % relative 8.5
11
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 2.3
3.1
Embodied Energy, MJ/kg 32
44
Embodied Water, L/kg 94
100

Common Calculations

PREN (Pitting Resistance) 11
17
Resilience: Ultimate (Unit Rupture Work), MJ/m3 80
110
Resilience: Unit (Modulus of Resilience), kJ/m3 94
1920
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 16
38
Strength to Weight: Bending, points 16
30
Thermal Diffusivity, mm2/s 6.7
6.6
Thermal Shock Resistance, points 16
40

Alloy Composition

Carbon (C), % 0 to 0.030
0.2 to 0.28
Chromium (Cr), % 10.5 to 11.7
11 to 12.5
Iron (Fe), % 84.7 to 89.4
81.4 to 85.8
Manganese (Mn), % 0 to 1.0
0.5 to 1.0
Molybdenum (Mo), % 0
0.9 to 1.3
Nickel (Ni), % 0 to 0.5
0.5 to 1.0
Niobium (Nb), % 0.080 to 0.75
0
Nitrogen (N), % 0 to 0.030
0
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.020
0 to 0.030
Titanium (Ti), % 0.050 to 0.2
0
Tungsten (W), % 0
0.9 to 1.3
Vanadium (V), % 0
0.2 to 0.3