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SAE-AISI P2 Steel vs. SAE-AISI D2 Steel

Both SAE-AISI P2 steel and SAE-AISI D2 steel are iron alloys. They have 86% of their average alloy composition in common. There are 23 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI P2 steel and the bottom bar is SAE-AISI D2 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
75
Tensile Strength: Ultimate (UTS), MPa 330 to 1980
760 to 2000

Thermal Properties

Latent Heat of Fusion, J/g 250
270
Melting Completion (Liquidus), °C 1460
1440
Melting Onset (Solidus), °C 1420
1390
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 46
31
Thermal Expansion, µm/m-K 12
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
4.3
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
5.1

Otherwise Unclassified Properties

Base Metal Price, % relative 2.7
8.0
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 1.5
3.4
Embodied Energy, MJ/kg 20
50
Embodied Water, L/kg 51
100

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 12 to 70
27 to 72
Strength to Weight: Bending, points 14 to 45
24 to 46
Thermal Diffusivity, mm2/s 12
8.3
Thermal Shock Resistance, points 11 to 65
25 to 67

Alloy Composition

Carbon (C), % 0 to 0.1
1.4 to 1.6
Chromium (Cr), % 0.75 to 1.3
11 to 13
Copper (Cu), % 0 to 0.25
0 to 0.25
Iron (Fe), % 96.6 to 98.8
81.3 to 86.9
Manganese (Mn), % 0.1 to 0.4
0 to 0.6
Molybdenum (Mo), % 0.15 to 0.4
0.7 to 1.2
Nickel (Ni), % 0.1 to 0.5
0 to 0.3
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 0.1 to 0.4
0 to 0.6
Sulfur (S), % 0 to 0.030
0 to 0.030
Vanadium (V), % 0
0 to 1.1

Comparable Variants