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SAE-AISI D7 Steel vs. SAE-AISI P6 Steel

Both SAE-AISI D7 steel and SAE-AISI P6 steel are iron alloys. They have 82% of their average alloy composition in common. There are 21 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 D7 steel and the bottom bar is SAE-AISI P6 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 73
73
Tensile Strength: Ultimate (UTS), MPa 800 to 2120
630 to 1930

Thermal Properties

Latent Heat of Fusion, J/g 270
250
Melting Completion (Liquidus), °C 1440
1460
Melting Onset (Solidus), °C 1400
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 27
43
Thermal Expansion, µm/m-K 11
12

Otherwise Unclassified Properties

Base Metal Price, % relative 10
4.6
Density, g/cm3 7.6
7.9
Embodied Carbon, kg CO2/kg material 11
1.8
Embodied Energy, MJ/kg 180
24
Embodied Water, L/kg 130
59

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 29 to 78
22 to 68
Strength to Weight: Bending, points 25 to 48
21 to 44
Thermal Diffusivity, mm2/s 7.4
11
Thermal Shock Resistance, points 27 to 72
21 to 63

Alloy Composition

Carbon (C), % 2.2 to 2.5
0.050 to 0.15
Chromium (Cr), % 11.5 to 13.5
1.3 to 1.8
Copper (Cu), % 0 to 0.25
0 to 0.25
Iron (Fe), % 76.6 to 81.9
92.9 to 95
Manganese (Mn), % 0 to 0.6
0.35 to 0.7
Molybdenum (Mo), % 0.7 to 1.2
0
Nickel (Ni), % 0 to 0.3
3.3 to 3.8
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 0 to 0.6
0.1 to 0.4
Sulfur (S), % 0 to 0.030
0 to 0.030
Vanadium (V), % 3.8 to 4.4
0

Comparable Variants