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S32050 Stainless Steel vs. ACI-ASTM CA40F Steel

Both S32050 stainless steel and ACI-ASTM CA40F steel are iron alloys. They have 62% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is S32050 stainless steel and the bottom bar is ACI-ASTM CA40F steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220
230
Elastic (Young's, Tensile) Modulus, GPa 210
190
Elongation at Break, % 46
13
Fatigue Strength, MPa 340
320
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 81
76
Tensile Strength: Ultimate (UTS), MPa 770
770
Tensile Strength: Yield (Proof), MPa 370
550

Thermal Properties

Latent Heat of Fusion, J/g 310
280
Maximum Temperature: Corrosion, °C 440
390
Maximum Temperature: Mechanical, °C 1100
750
Melting Completion (Liquidus), °C 1460
1430
Melting Onset (Solidus), °C 1410
1390
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 12
27
Thermal Expansion, µm/m-K 16
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
3.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.1
3.5

Otherwise Unclassified Properties

Base Metal Price, % relative 31
7.5
Density, g/cm3 8.0
7.7
Embodied Carbon, kg CO2/kg material 6.0
2.0
Embodied Energy, MJ/kg 81
28
Embodied Water, L/kg 210
100

Common Calculations

PREN (Pitting Resistance) 48
14
Resilience: Ultimate (Unit Rupture Work), MJ/m3 290
94
Resilience: Unit (Modulus of Resilience), kJ/m3 330
790
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 27
28
Strength to Weight: Bending, points 23
24
Thermal Diffusivity, mm2/s 3.3
7.2
Thermal Shock Resistance, points 17
28

Alloy Composition

Carbon (C), % 0 to 0.030
0.2 to 0.4
Chromium (Cr), % 22 to 24
11.5 to 14
Copper (Cu), % 0 to 0.4
0
Iron (Fe), % 43.1 to 51.8
81.6 to 88.3
Manganese (Mn), % 0 to 1.5
0 to 1.0
Molybdenum (Mo), % 6.0 to 6.6
0 to 0.5
Nickel (Ni), % 20 to 23
0 to 1.0
Nitrogen (N), % 0.21 to 0.32
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
0.2 to 0.4