MakeItFrom.com
Menu (ESC)

Annealed SAE-AISI D7 vs. ISO-WD21150-O

Annealed SAE-AISI D7 belongs to the iron alloys classification, while ISO-WD21150-O belongs to the magnesium alloys. There are 21 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is annealed SAE-AISI D7 and the bottom bar is ISO-WD21150-O.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
45
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 73
17
Tensile Strength: Ultimate (UTS), MPa 800
240

Thermal Properties

Latent Heat of Fusion, J/g 270
350
Melting Completion (Liquidus), °C 1440
600
Melting Onset (Solidus), °C 1400
550
Specific Heat Capacity, J/kg-K 480
990
Thermal Conductivity, W/m-K 27
100
Thermal Expansion, µm/m-K 11
27

Otherwise Unclassified Properties

Base Metal Price, % relative 10
12
Density, g/cm3 7.6
1.7
Embodied Carbon, kg CO2/kg material 11
23
Embodied Energy, MJ/kg 180
160
Embodied Water, L/kg 130
980

Common Calculations

Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
70
Strength to Weight: Axial, points 29
40
Strength to Weight: Bending, points 25
52
Thermal Diffusivity, mm2/s 7.4
60
Thermal Shock Resistance, points 27
15

Alloy Composition

Aluminum (Al), % 0
2.4 to 3.6
Carbon (C), % 2.2 to 2.5
0
Chromium (Cr), % 11.5 to 13.5
0
Copper (Cu), % 0 to 0.25
0 to 0.050
Iron (Fe), % 76.6 to 81.9
0 to 0.0050
Magnesium (Mg), % 0
94 to 97
Manganese (Mn), % 0 to 0.6
0.15 to 0.4
Molybdenum (Mo), % 0.7 to 1.2
0
Nickel (Ni), % 0 to 0.3
0 to 0.0050
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0 to 0.6
0 to 0.1
Sulfur (S), % 0 to 0.030
0
Vanadium (V), % 3.8 to 4.4
0
Zinc (Zn), % 0
0.5 to 1.5
Residuals, % 0
0 to 0.3