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SAE-AISI 4150 Steel vs. ASTM A356 Grade 1

Both SAE-AISI 4150 steel and ASTM A356 grade 1 are iron alloys. They have a very high 98% of their average alloy composition in common. 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 4150 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, % 12 to 20
23
Fatigue Strength, MPa 260 to 780
200
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Tensile Strength: Ultimate (UTS), MPa 660 to 1310
550
Tensile Strength: Yield (Proof), MPa 380 to 1220
280

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 420
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 42
51
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
8.1

Otherwise Unclassified Properties

Base Metal Price, % relative 2.4
1.8
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.5
1.4
Embodied Energy, MJ/kg 20
18
Embodied Water, L/kg 51
45

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 82 to 180
110
Resilience: Unit (Modulus of Resilience), kJ/m3 380 to 3930
210
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 24 to 47
20
Strength to Weight: Bending, points 22 to 34
19
Thermal Diffusivity, mm2/s 11
14
Thermal Shock Resistance, points 19 to 39
18

Alloy Composition

Carbon (C), % 0.48 to 0.53
0 to 0.35
Chromium (Cr), % 0.8 to 1.1
0
Iron (Fe), % 96.7 to 97.7
98.3 to 100
Manganese (Mn), % 0.75 to 1.0
0 to 0.7
Molybdenum (Mo), % 0.15 to 0.25
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 to 0.040
0 to 0.030