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SAE-AISI 1030 Steel vs. SAE-AISI 4150 Steel

Both SAE-AISI 1030 steel and SAE-AISI 4150 steel are iron alloys. They have a very high 98% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 1030 steel and the bottom bar is SAE-AISI 4150 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150 to 160
200 to 380
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 14 to 22
12 to 20
Fatigue Strength, MPa 210 to 320
260 to 780
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 330 to 360
410 to 800
Tensile Strength: Ultimate (UTS), MPa 530 to 590
660 to 1310
Tensile Strength: Yield (Proof), MPa 300 to 490
380 to 1220

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 400
420
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
42
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 8.0
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
2.4
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.4
1.5
Embodied Energy, MJ/kg 18
20
Embodied Water, L/kg 46
51

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 77 to 100
82 to 180
Resilience: Unit (Modulus of Resilience), kJ/m3 230 to 650
380 to 3930
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 19 to 21
24 to 47
Strength to Weight: Bending, points 18 to 20
22 to 34
Thermal Diffusivity, mm2/s 14
11
Thermal Shock Resistance, points 17 to 19
19 to 39

Alloy Composition

Carbon (C), % 0.28 to 0.34
0.48 to 0.53
Chromium (Cr), % 0
0.8 to 1.1
Iron (Fe), % 98.7 to 99.12
96.7 to 97.7
Manganese (Mn), % 0.6 to 0.9
0.75 to 1.0
Molybdenum (Mo), % 0
0.15 to 0.25
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 0
0.15 to 0.35
Sulfur (S), % 0 to 0.050
0 to 0.040

Comparable Variants