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SAE-AISI 6150 Steel vs. SAE-AISI 1045 Steel

Both SAE-AISI 6150 steel and SAE-AISI 1045 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 6150 steel and the bottom bar is SAE-AISI 1045 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 350
180 to 190
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 15 to 23
13 to 18
Fatigue Strength, MPa 300 to 750
220 to 370
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
72
Shear Strength, MPa 400 to 730
380 to 410
Tensile Strength: Ultimate (UTS), MPa 630 to 1200
620 to 680
Tensile Strength: Yield (Proof), MPa 420 to 1160
330 to 580

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 1410
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 46
51
Thermal Expansion, µm/m-K 12 to 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 2.3
1.8
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.0
1.4
Embodied Energy, MJ/kg 28
18
Embodied Water, L/kg 51
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130 to 180
84 to 93
Resilience: Unit (Modulus of Resilience), kJ/m3 460 to 3590
300 to 900
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 22 to 43
22 to 24
Strength to Weight: Bending, points 21 to 32
21 to 22
Thermal Diffusivity, mm2/s 13
14
Thermal Shock Resistance, points 20 to 38
20 to 22

Alloy Composition

Carbon (C), % 0.48 to 0.53
0.43 to 0.5
Chromium (Cr), % 0.8 to 1.1
0
Iron (Fe), % 96.7 to 97.7
98.5 to 99
Manganese (Mn), % 0.7 to 0.9
0.6 to 0.9
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 to 0.050
Vanadium (V), % 0.15 to 0.3
0