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S32001 Stainless Steel vs. ACI-ASTM CA15 Steel

Both S32001 stainless steel and ACI-ASTM CA15 steel are iron alloys. They have 86% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is S32001 stainless steel and the bottom bar is ACI-ASTM CA15 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 28
21
Fatigue Strength, MPa 370
370
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 78
76
Tensile Strength: Ultimate (UTS), MPa 690
700
Tensile Strength: Yield (Proof), MPa 510
570

Thermal Properties

Latent Heat of Fusion, J/g 290
280
Maximum Temperature: Corrosion, °C 430
390
Maximum Temperature: Mechanical, °C 970
750
Melting Completion (Liquidus), °C 1420
1440
Melting Onset (Solidus), °C 1370
1500
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
25
Thermal Expansion, µm/m-K 13
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
3.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
3.5

Otherwise Unclassified Properties

Base Metal Price, % relative 12
7.5
Density, g/cm3 7.7
7.7
Embodied Carbon, kg CO2/kg material 2.6
2.0
Embodied Energy, MJ/kg 37
28
Embodied Water, L/kg 150
100

Common Calculations

PREN (Pitting Resistance) 23
14
Resilience: Ultimate (Unit Rupture Work), MJ/m3 180
140
Resilience: Unit (Modulus of Resilience), kJ/m3 660
820
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 25
25
Strength to Weight: Bending, points 23
23
Thermal Diffusivity, mm2/s 4.0
6.7
Thermal Shock Resistance, points 19
26

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.15
Chromium (Cr), % 19.5 to 21.5
11.5 to 14
Copper (Cu), % 0 to 1.0
0
Iron (Fe), % 66.6 to 75.5
81.8 to 88.5
Manganese (Mn), % 4.0 to 6.0
0 to 1.0
Molybdenum (Mo), % 0 to 0.6
0 to 0.5
Nickel (Ni), % 1.0 to 3.0
0 to 1.0
Nitrogen (N), % 0.050 to 0.17
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.5
Sulfur (S), % 0 to 0.030
0 to 0.040