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ACI-ASTM CA15 Steel vs. S43037 Stainless Steel

Both ACI-ASTM CA15 steel and S43037 stainless steel are iron alloys. They have a moderately high 95% 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 CA15 steel and the bottom bar is S43037 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220
160
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 21
25
Fatigue Strength, MPa 370
160
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
77
Tensile Strength: Ultimate (UTS), MPa 700
410
Tensile Strength: Yield (Proof), MPa 570
230

Thermal Properties

Latent Heat of Fusion, J/g 280
280
Maximum Temperature: Corrosion, °C 390
510
Maximum Temperature: Mechanical, °C 750
880
Melting Completion (Liquidus), °C 1440
1440
Melting Onset (Solidus), °C 1500
1400
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 25
25
Thermal Expansion, µm/m-K 10
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.0
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 3.5
3.4

Otherwise Unclassified Properties

Base Metal Price, % relative 7.5
9.0
Density, g/cm3 7.7
7.7
Embodied Carbon, kg CO2/kg material 2.0
2.3
Embodied Energy, MJ/kg 28
32
Embodied Water, L/kg 100
120

Common Calculations

PREN (Pitting Resistance) 14
18
Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
88
Resilience: Unit (Modulus of Resilience), kJ/m3 820
130
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 25
15
Strength to Weight: Bending, points 23
16
Thermal Diffusivity, mm2/s 6.7
6.7
Thermal Shock Resistance, points 26
14

Alloy Composition

Carbon (C), % 0 to 0.15
0 to 0.030
Chromium (Cr), % 11.5 to 14
16 to 19
Iron (Fe), % 81.8 to 88.5
77.9 to 83.9
Manganese (Mn), % 0 to 1.0
0 to 1.0
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 0 to 1.0
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.5
0 to 1.0
Sulfur (S), % 0 to 0.040
0 to 0.030
Titanium (Ti), % 0
0.1 to 1.0