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SAE-AISI 1345 Steel vs. ACI-ASTM CA15M Steel

Both SAE-AISI 1345 steel and ACI-ASTM CA15M steel are iron alloys. They have 86% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 1345 steel and the bottom bar is ACI-ASTM CA15M steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170 to 210
210
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 11 to 23
20
Fatigue Strength, MPa 230 to 390
330
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 72
76
Tensile Strength: Ultimate (UTS), MPa 590 to 730
690
Tensile Strength: Yield (Proof), MPa 330 to 620
510

Thermal Properties

Latent Heat of Fusion, J/g 250
270
Maximum Temperature: Mechanical, °C 400
760
Melting Completion (Liquidus), °C 1450
1450
Melting Onset (Solidus), °C 1410
1410
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 51
27
Thermal Expansion, µm/m-K 12
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
3.0
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
3.5

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
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 48
100

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 78 to 120
130
Resilience: Unit (Modulus of Resilience), kJ/m3 290 to 1040
670
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 21 to 26
25
Strength to Weight: Bending, points 20 to 23
22
Thermal Diffusivity, mm2/s 14
7.2
Thermal Shock Resistance, points 19 to 23
25

Alloy Composition

Carbon (C), % 0.43 to 0.48
0 to 0.15
Chromium (Cr), % 0
11.5 to 14
Iron (Fe), % 97.2 to 97.8
82.1 to 88.4
Manganese (Mn), % 1.6 to 1.9
0 to 1.0
Molybdenum (Mo), % 0
0.15 to 1.0
Nickel (Ni), % 0
0 to 1.0
Phosphorus (P), % 0 to 0.035
0 to 0.040
Silicon (Si), % 0.15 to 0.35
0 to 0.65
Sulfur (S), % 0 to 0.040
0 to 0.040