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SAE-AISI 8655 Steel vs. SAE-AISI 1023 Steel

Both SAE-AISI 8655 steel and SAE-AISI 1023 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 8655 steel and the bottom bar is SAE-AISI 1023 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
130 to 140
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 23
17 to 29
Fatigue Strength, MPa 290
180 to 270
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 390
280 to 300
Tensile Strength: Ultimate (UTS), MPa 620
430 to 480
Tensile Strength: Yield (Proof), MPa 410
240 to 410

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 410
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 39
53
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
6.9
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
8.0

Otherwise Unclassified Properties

Base Metal Price, % relative 2.6
1.8
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.5
1.4
Embodied Energy, MJ/kg 20
18
Embodied Water, L/kg 50
45

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
77 to 100
Resilience: Unit (Modulus of Resilience), kJ/m3 440
150 to 450
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 22
15 to 17
Strength to Weight: Bending, points 21
16 to 17
Thermal Diffusivity, mm2/s 10
14
Thermal Shock Resistance, points 18
14 to 15

Alloy Composition

Carbon (C), % 0.51 to 0.59
0.2 to 0.25
Chromium (Cr), % 0.4 to 0.6
0
Iron (Fe), % 96.4 to 97.6
99.06 to 99.5
Manganese (Mn), % 0.75 to 1.0
0.3 to 0.6
Molybdenum (Mo), % 0.15 to 0.25
0
Nickel (Ni), % 0.4 to 0.7
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 to 0.050