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SAE-AISI 4150 Steel vs. SAE-AISI 1117 Steel

Both SAE-AISI 4150 steel and SAE-AISI 1117 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 4150 steel and the bottom bar is SAE-AISI 1117 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 380
140 to 150
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 12 to 20
17 to 26
Fatigue Strength, MPa 260 to 780
190 to 300
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 410 to 800
320 to 330
Tensile Strength: Ultimate (UTS), MPa 660 to 1310
490 to 540
Tensile Strength: Yield (Proof), MPa 380 to 1220
260 to 460

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
52
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
7.1
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
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 82 to 180
86 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 380 to 3930
180 to 550
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 24 to 47
17 to 19
Strength to Weight: Bending, points 22 to 34
18 to 19
Thermal Diffusivity, mm2/s 11
14
Thermal Shock Resistance, points 19 to 39
15 to 17

Alloy Composition

Carbon (C), % 0.48 to 0.53
0.14 to 0.2
Chromium (Cr), % 0.8 to 1.1
0
Iron (Fe), % 96.7 to 97.7
98.3 to 98.8
Manganese (Mn), % 0.75 to 1.0
1.0 to 1.3
Molybdenum (Mo), % 0.15 to 0.25
0
Phosphorus (P), % 0 to 0.035
0 to 0.040
Silicon (Si), % 0.15 to 0.35
0
Sulfur (S), % 0 to 0.040
0.080 to 0.13

Comparable Variants