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ASTM A356 Grade 1 vs. SAE-AISI 1046 Steel

Both ASTM A356 grade 1 and SAE-AISI 1046 steel are iron alloys. Their average alloy composition is basically identical. There are 30 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is ASTM A356 grade 1 and the bottom bar is SAE-AISI 1046 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 23
14 to 17
Fatigue Strength, MPa 200
240 to 390
Poisson's Ratio 0.29
0.29
Reduction in Area, % 39
39 to 50
Shear Modulus, GPa 73
72
Tensile Strength: Ultimate (UTS), MPa 550
660 to 740
Tensile Strength: Yield (Proof), MPa 280
370 to 610

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 400
400
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1420
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 51
51
Thermal Expansion, µm/m-K 12
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0
11
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1
12

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
1.8
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.4
1.4
Embodied Energy, MJ/kg 18
18
Embodied Water, L/kg 45
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
91 to 95
Resilience: Unit (Modulus of Resilience), kJ/m3 210
360 to 990
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 20
23 to 26
Strength to Weight: Bending, points 19
22 to 23
Thermal Diffusivity, mm2/s 14
14
Thermal Shock Resistance, points 18
23 to 25

Alloy Composition

Carbon (C), % 0 to 0.35
0.43 to 0.5
Iron (Fe), % 98.3 to 100
98.4 to 98.9
Manganese (Mn), % 0 to 0.7
0.7 to 1.0
Phosphorus (P), % 0 to 0.035
0 to 0.040
Silicon (Si), % 0 to 0.6
0
Sulfur (S), % 0 to 0.030
0 to 0.050