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SAE-AISI 1547 Steel vs. ACI-ASTM CA6N Steel

Both SAE-AISI 1547 steel and ACI-ASTM CA6N steel are iron alloys. They have 81% 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 1547 steel and the bottom bar is ACI-ASTM CA6N steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 11 to 17
17
Fatigue Strength, MPa 270 to 430
640
Poisson's Ratio 0.29
0.28
Reduction in Area, % 32 to 40
57
Shear Modulus, GPa 73
75
Tensile Strength: Ultimate (UTS), MPa 740 to 800
1080
Tensile Strength: Yield (Proof), MPa 400 to 690
1060

Thermal Properties

Latent Heat of Fusion, J/g 250
280
Maximum Temperature: Mechanical, °C 400
740
Melting Completion (Liquidus), °C 1460
1440
Melting Onset (Solidus), °C 1420
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 51
23
Thermal Expansion, µm/m-K 12
9.9

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
2.6
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
3.0

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
11
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.4
2.5
Embodied Energy, MJ/kg 19
35
Embodied Water, L/kg 47
110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 80 to 110
180
Resilience: Unit (Modulus of Resilience), kJ/m3 430 to 1280
2900
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 26 to 28
38
Strength to Weight: Bending, points 23 to 24
30
Thermal Diffusivity, mm2/s 14
6.1
Thermal Shock Resistance, points 23 to 25
40

Alloy Composition

Carbon (C), % 0.43 to 0.51
0 to 0.060
Chromium (Cr), % 0
10.5 to 12.5
Iron (Fe), % 97.8 to 98.2
77.9 to 83.5
Manganese (Mn), % 1.4 to 1.7
0 to 0.5
Nickel (Ni), % 0
6.0 to 8.0
Phosphorus (P), % 0 to 0.040
0 to 0.020
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0 to 0.050
0 to 0.020