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ACI-ASTM CA15M Steel vs. S44537 Stainless Steel

Both ACI-ASTM CA15M steel and S44537 stainless steel are iron alloys. They have 88% 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 CA15M steel and the bottom bar is S44537 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210
180
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 20
21
Fatigue Strength, MPa 330
230
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 76
79
Tensile Strength: Ultimate (UTS), MPa 690
510
Tensile Strength: Yield (Proof), MPa 510
360

Thermal Properties

Latent Heat of Fusion, J/g 270
290
Maximum Temperature: Corrosion, °C 390
530
Maximum Temperature: Mechanical, °C 760
1000
Melting Completion (Liquidus), °C 1450
1480
Melting Onset (Solidus), °C 1410
1430
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 27
21
Thermal Expansion, µm/m-K 10
11

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 7.5
19
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 2.1
3.4
Embodied Energy, MJ/kg 29
50
Embodied Water, L/kg 100
140

Common Calculations

PREN (Pitting Resistance) 15
26
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
95
Resilience: Unit (Modulus of Resilience), kJ/m3 670
320
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 25
18
Strength to Weight: Bending, points 22
18
Thermal Diffusivity, mm2/s 7.2
5.6
Thermal Shock Resistance, points 25
17

Alloy Composition

Aluminum (Al), % 0
0 to 0.1
Carbon (C), % 0 to 0.15
0 to 0.030
Chromium (Cr), % 11.5 to 14
20 to 24
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 82.1 to 88.4
69 to 78.6
Lanthanum (La), % 0
0.040 to 0.2
Manganese (Mn), % 0 to 1.0
0 to 0.8
Molybdenum (Mo), % 0.15 to 1.0
0
Nickel (Ni), % 0 to 1.0
0 to 0.5
Niobium (Nb), % 0
0.2 to 1.0
Nitrogen (N), % 0
0 to 0.040
Phosphorus (P), % 0 to 0.040
0 to 0.050
Silicon (Si), % 0 to 0.65
0.1 to 0.6
Sulfur (S), % 0 to 0.040
0 to 0.0060
Titanium (Ti), % 0
0.020 to 0.2
Tungsten (W), % 0
1.0 to 3.0