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SAE-AISI 1070 Steel vs. ACI-ASTM CA15M Steel

Both SAE-AISI 1070 steel and ACI-ASTM CA15M 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 SAE-AISI 1070 steel and the bottom bar is ACI-ASTM CA15M steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190 to 230
210
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 10 to 13
20
Fatigue Strength, MPa 270 to 350
330
Poisson's Ratio 0.29
0.28
Reduction in Area, % 34 to 51
34
Shear Modulus, GPa 72
76
Tensile Strength: Ultimate (UTS), MPa 640 to 760
690
Tensile Strength: Yield (Proof), MPa 420 to 560
510

Thermal Properties

Latent Heat of Fusion, J/g 250
270
Maximum Temperature: Mechanical, °C 400
760
Melting Completion (Liquidus), °C 1460
1450
Melting Onset (Solidus), °C 1420
1410
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 50
27
Thermal Expansion, µm/m-K 12
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 10
3.0
Electrical Conductivity: Equal Weight (Specific), % IACS 12
3.5

Otherwise Unclassified Properties

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

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 59 to 86
130
Resilience: Unit (Modulus of Resilience), kJ/m3 470 to 850
670
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 23 to 27
25
Strength to Weight: Bending, points 21 to 24
22
Thermal Diffusivity, mm2/s 14
7.2
Thermal Shock Resistance, points 21 to 25
25

Alloy Composition

Carbon (C), % 0.65 to 0.75
0 to 0.15
Chromium (Cr), % 0
11.5 to 14
Iron (Fe), % 98.3 to 98.8
82.1 to 88.4
Manganese (Mn), % 0.6 to 0.9
0 to 1.0
Molybdenum (Mo), % 0
0.15 to 1.0
Nickel (Ni), % 0
0 to 1.0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0
0 to 0.65
Sulfur (S), % 0 to 0.050
0 to 0.040