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SAE-AISI 1151 Steel vs. SAE-AISI S6 Steel

Both SAE-AISI 1151 steel and SAE-AISI S6 steel are iron alloys. They have a very high 95% of their average alloy composition in common. There are 23 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 1151 steel and the bottom bar is SAE-AISI S6 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 72
72
Tensile Strength: Ultimate (UTS), MPa 710 to 800
670 to 1920

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Melting Completion (Liquidus), °C 1460
1430
Melting Onset (Solidus), °C 1420
1390
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 51
41
Thermal Expansion, µm/m-K 12
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 10
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 12
8.9

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
3.2
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 1.4
2.3
Embodied Energy, MJ/kg 18
33
Embodied Water, L/kg 46
56

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 25 to 28
24 to 70
Strength to Weight: Bending, points 22 to 24
22 to 45
Thermal Diffusivity, mm2/s 14
11
Thermal Shock Resistance, points 22 to 25
22 to 64

Alloy Composition

Carbon (C), % 0.48 to 0.55
0.4 to 0.5
Chromium (Cr), % 0
1.2 to 1.5
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 98.3 to 98.7
92.8 to 94.7
Manganese (Mn), % 0.7 to 1.0
1.2 to 1.5
Molybdenum (Mo), % 0
0.3 to 0.5
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0
2.0 to 2.5
Sulfur (S), % 0.080 to 0.13
0 to 0.030
Vanadium (V), % 0
0.2 to 0.4