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SAE-AISI D7 Steel vs. AWS BVAu-7

SAE-AISI D7 steel belongs to the iron alloys classification, while AWS BVAu-7 belongs to the otherwise unclassified metals. There are 15 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI D7 steel and the bottom bar is AWS BVAu-7.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
130
Poisson's Ratio 0.28
0.38
Shear Modulus, GPa 73
45
Tensile Strength: Ultimate (UTS), MPa 800 to 2120
200

Thermal Properties

Latent Heat of Fusion, J/g 270
140
Melting Completion (Liquidus), °C 1440
1120
Melting Onset (Solidus), °C 1400
1100
Specific Heat Capacity, J/kg-K 480
240
Thermal Expansion, µm/m-K 11
13

Otherwise Unclassified Properties

Density, g/cm3 7.6
15

Common Calculations

Stiffness to Weight: Axial, points 14
4.7
Stiffness to Weight: Bending, points 25
11
Strength to Weight: Axial, points 29 to 78
3.7
Strength to Weight: Bending, points 25 to 48
5.1
Thermal Shock Resistance, points 27 to 72
8.9

Alloy Composition

Cadmium (Cd), % 0
0 to 0.0010
Carbon (C), % 2.2 to 2.5
0 to 0.0050
Chromium (Cr), % 11.5 to 13.5
0
Cobalt (Co), % 0
0 to 0.060
Copper (Cu), % 0 to 0.25
0
Gold (Au), % 0
49.5 to 50.5
Iron (Fe), % 76.6 to 81.9
0
Lead (Pb), % 0
0 to 0.0020
Manganese (Mn), % 0 to 0.6
0
Molybdenum (Mo), % 0.7 to 1.2
0
Nickel (Ni), % 0 to 0.3
24.5 to 25.5
Palladium (Pd), % 0
23.9 to 26
Phosphorus (P), % 0 to 0.030
0 to 0.0020
Silicon (Si), % 0 to 0.6
0
Sulfur (S), % 0 to 0.030
0
Vanadium (V), % 3.8 to 4.4
0
Zinc (Zn), % 0
0 to 0.0010