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ACI-ASTM CA15M Steel vs. SAE-AISI 1084 Steel

Both ACI-ASTM CA15M steel and SAE-AISI 1084 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 (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 SAE-AISI 1084 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210
220 to 270
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 20
11
Fatigue Strength, MPa 330
320 to 370
Poisson's Ratio 0.28
0.29
Reduction in Area, % 34
28 to 45
Shear Modulus, GPa 76
72
Tensile Strength: Ultimate (UTS), MPa 690
780 to 930
Tensile Strength: Yield (Proof), MPa 510
510 to 600

Thermal Properties

Latent Heat of Fusion, J/g 270
240
Maximum Temperature: Mechanical, °C 760
400
Melting Completion (Liquidus), °C 1450
1450
Melting Onset (Solidus), °C 1410
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 27
51
Thermal Expansion, µm/m-K 10
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.0
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 3.5
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 7.5
1.8
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.1
1.4
Embodied Energy, MJ/kg 29
19
Embodied Water, L/kg 100
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
81 to 89
Resilience: Unit (Modulus of Resilience), kJ/m3 670
700 to 960
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 25
28 to 33
Strength to Weight: Bending, points 22
24 to 27
Thermal Diffusivity, mm2/s 7.2
14
Thermal Shock Resistance, points 25
25 to 30

Alloy Composition

Carbon (C), % 0 to 0.15
0.8 to 0.93
Chromium (Cr), % 11.5 to 14
0
Iron (Fe), % 82.1 to 88.4
98.1 to 98.6
Manganese (Mn), % 0 to 1.0
0.6 to 0.9
Molybdenum (Mo), % 0.15 to 1.0
0
Nickel (Ni), % 0 to 1.0
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 0.65
0
Sulfur (S), % 0 to 0.040
0 to 0.050