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ACI-ASTM CA15M Steel vs. SAE-AISI 1039 Steel

Both ACI-ASTM CA15M steel and SAE-AISI 1039 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 1039 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210
180 to 200
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 20
14 to 18
Fatigue Strength, MPa 330
230 to 370
Poisson's Ratio 0.28
0.29
Reduction in Area, % 34
40 to 45
Shear Modulus, GPa 76
73
Tensile Strength: Ultimate (UTS), MPa 690
610 to 690
Tensile Strength: Yield (Proof), MPa 510
340 to 580

Thermal Properties

Latent Heat of Fusion, J/g 270
250
Maximum Temperature: Mechanical, °C 760
400
Melting Completion (Liquidus), °C 1450
1460
Melting Onset (Solidus), °C 1410
1420
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
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 3.5
8.1

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
18
Embodied Water, L/kg 100
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
88 to 94
Resilience: Unit (Modulus of Resilience), kJ/m3 670
310 to 890
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 25
22 to 24
Strength to Weight: Bending, points 22
20 to 22
Thermal Diffusivity, mm2/s 7.2
14
Thermal Shock Resistance, points 25
19 to 22

Alloy Composition

Carbon (C), % 0 to 0.15
0.37 to 0.44
Chromium (Cr), % 11.5 to 14
0
Iron (Fe), % 82.1 to 88.4
98.5 to 98.9
Manganese (Mn), % 0 to 1.0
0.7 to 1.0
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