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SAE-AISI 4028 Steel vs. ASTM A356 Grade 1

Both SAE-AISI 4028 steel and ASTM A356 grade 1 are iron alloys. Their average alloy composition is basically identical. There are 29 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 4028 steel and the bottom bar is ASTM A356 grade 1.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 14 to 23
23
Fatigue Strength, MPa 180 to 330
200
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Tensile Strength: Ultimate (UTS), MPa 490 to 630
550
Tensile Strength: Yield (Proof), MPa 260 to 520
280

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 49
51
Thermal Expansion, µm/m-K 12
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1
8.1

Otherwise Unclassified Properties

Base Metal Price, % relative 2.1
1.8
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.5
1.4
Embodied Energy, MJ/kg 19
18
Embodied Water, L/kg 47
45

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 81 to 95
110
Resilience: Unit (Modulus of Resilience), kJ/m3 180 to 720
210
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 17 to 22
20
Strength to Weight: Bending, points 18 to 21
19
Thermal Diffusivity, mm2/s 13
14
Thermal Shock Resistance, points 16 to 20
18

Alloy Composition

Carbon (C), % 0.25 to 0.3
0 to 0.35
Iron (Fe), % 98.1 to 98.7
98.3 to 100
Manganese (Mn), % 0.7 to 0.9
0 to 0.7
Molybdenum (Mo), % 0.2 to 0.3
0
Phosphorus (P), % 0 to 0.035
0 to 0.035
Silicon (Si), % 0.15 to 0.35
0 to 0.6
Sulfur (S), % 0.035 to 0.050
0 to 0.030