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SAE-AISI D2 Steel vs. SAE-AISI 5155 Steel

Both SAE-AISI D2 steel and SAE-AISI 5155 steel are iron alloys. They have 86% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI D2 steel and the bottom bar is SAE-AISI 5155 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 5.0 to 16
21
Fatigue Strength, MPa 310 to 860
260
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 75
73
Shear Strength, MPa 460 to 1160
390
Tensile Strength: Ultimate (UTS), MPa 760 to 2000
620
Tensile Strength: Yield (Proof), MPa 470 to 1510
380

Thermal Properties

Latent Heat of Fusion, J/g 270
250
Melting Completion (Liquidus), °C 1440
1450
Melting Onset (Solidus), °C 1390
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 31
49
Thermal Expansion, µm/m-K 11
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 4.3
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 5.1
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 8.0
2.1
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 3.4
1.4
Embodied Energy, MJ/kg 50
19
Embodied Water, L/kg 100
49

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 92 to 100
110
Resilience: Unit (Modulus of Resilience), kJ/m3 570 to 5940
380
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 27 to 72
22
Strength to Weight: Bending, points 24 to 46
21
Thermal Diffusivity, mm2/s 8.3
13
Thermal Shock Resistance, points 25 to 67
20

Alloy Composition

Carbon (C), % 1.4 to 1.6
0.51 to 0.59
Chromium (Cr), % 11 to 13
0.7 to 0.9
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 81.3 to 86.9
97.2 to 97.9
Manganese (Mn), % 0 to 0.6
0.7 to 0.9
Molybdenum (Mo), % 0.7 to 1.2
0
Nickel (Ni), % 0 to 0.3
0
Phosphorus (P), % 0 to 0.030
0 to 0.035
Silicon (Si), % 0 to 0.6
0.15 to 0.35
Sulfur (S), % 0 to 0.030
0 to 0.040
Vanadium (V), % 0 to 1.1
0