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SAE-AISI P5 Steel vs. SAE-AISI D7 Steel

Both SAE-AISI P5 steel and SAE-AISI D7 steel are iron alloys. They have 82% of their average alloy composition in common. There are 22 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI P5 steel and the bottom bar is SAE-AISI D7 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
73
Tensile Strength: Ultimate (UTS), MPa 370 to 1980
800 to 2120

Thermal Properties

Latent Heat of Fusion, J/g 250
270
Melting Completion (Liquidus), °C 1460
1440
Melting Onset (Solidus), °C 1420
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 45
27
Thermal Expansion, µm/m-K 12
11

Otherwise Unclassified Properties

Base Metal Price, % relative 2.8
10
Density, g/cm3 7.8
7.6
Embodied Carbon, kg CO2/kg material 1.5
11
Embodied Energy, MJ/kg 20
180
Embodied Water, L/kg 56
130

Common Calculations

PREN (Pitting Resistance) 2.3
16
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 13 to 70
29 to 78
Strength to Weight: Bending, points 15 to 45
25 to 48
Thermal Diffusivity, mm2/s 12
7.4
Thermal Shock Resistance, points 12 to 65
27 to 72

Alloy Composition

Carbon (C), % 0 to 0.1
2.2 to 2.5
Chromium (Cr), % 2.0 to 2.5
11.5 to 13.5
Copper (Cu), % 0 to 0.25
0 to 0.25
Iron (Fe), % 95.7 to 97.8
76.6 to 81.9
Manganese (Mn), % 0.2 to 0.6
0 to 0.6
Molybdenum (Mo), % 0
0.7 to 1.2
Nickel (Ni), % 0 to 0.35
0 to 0.3
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 0 to 0.4
0 to 0.6
Sulfur (S), % 0 to 0.030
0 to 0.030
Vanadium (V), % 0
3.8 to 4.4

Comparable Variants