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SAE-AISI T15 Steel vs. ACI-ASTM CA40F Steel

Both SAE-AISI T15 steel and ACI-ASTM CA40F steel are iron alloys. They have 76% of their average alloy composition in common. There are 22 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI T15 steel and the bottom bar is ACI-ASTM CA40F steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 76
76
Tensile Strength: Ultimate (UTS), MPa 830 to 2240
770

Thermal Properties

Latent Heat of Fusion, J/g 250
280
Melting Completion (Liquidus), °C 1690
1430
Melting Onset (Solidus), °C 1640
1390
Specific Heat Capacity, J/kg-K 430
480
Thermal Conductivity, W/m-K 21
27
Thermal Expansion, µm/m-K 12
10

Otherwise Unclassified Properties

Base Metal Price, % relative 43
7.5
Density, g/cm3 8.7
7.7
Embodied Carbon, kg CO2/kg material 16
2.0
Embodied Energy, MJ/kg 250
28
Embodied Water, L/kg 140
100

Common Calculations

PREN (Pitting Resistance) 27
14
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 22
25
Strength to Weight: Axial, points 26 to 71
28
Strength to Weight: Bending, points 22 to 43
24
Thermal Diffusivity, mm2/s 5.6
7.2
Thermal Shock Resistance, points 26 to 70
28

Alloy Composition

Carbon (C), % 1.5 to 1.6
0.2 to 0.4
Chromium (Cr), % 3.8 to 5.0
11.5 to 14
Cobalt (Co), % 4.8 to 5.3
0
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 67.5 to 73.5
81.6 to 88.3
Manganese (Mn), % 0.15 to 0.4
0 to 1.0
Molybdenum (Mo), % 0 to 1.0
0 to 0.5
Nickel (Ni), % 0 to 0.3
0 to 1.0
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0.15 to 0.4
0 to 1.5
Sulfur (S), % 0 to 0.030
0.2 to 0.4
Tungsten (W), % 11.8 to 13
0
Vanadium (V), % 4.5 to 5.3
0