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SAE-AISI D7 Steel vs. ASTM A356 Grade 5

Both SAE-AISI D7 steel and ASTM A356 grade 5 are iron alloys. They have 81% of their average alloy composition in common. There are 22 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI D7 steel and the bottom bar is ASTM A356 grade 5.

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
550

Thermal Properties

Latent Heat of Fusion, J/g 270
250
Melting Completion (Liquidus), °C 1440
1470
Melting Onset (Solidus), °C 1400
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 27
49
Thermal Expansion, µm/m-K 11
13

Otherwise Unclassified Properties

Base Metal Price, % relative 10
2.6
Density, g/cm3 7.6
7.9
Embodied Carbon, kg CO2/kg material 11
1.5
Embodied Energy, MJ/kg 180
20
Embodied Water, L/kg 130
49

Common Calculations

PREN (Pitting Resistance) 16
2.2
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 29 to 78
20
Strength to Weight: Bending, points 25 to 48
19
Thermal Diffusivity, mm2/s 7.4
13
Thermal Shock Resistance, points 27 to 72
16

Alloy Composition

Carbon (C), % 2.2 to 2.5
0 to 0.25
Chromium (Cr), % 11.5 to 13.5
0.4 to 0.7
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 76.6 to 81.9
97.1 to 99.2
Manganese (Mn), % 0 to 0.6
0 to 0.7
Molybdenum (Mo), % 0.7 to 1.2
0.4 to 0.6
Nickel (Ni), % 0 to 0.3
0
Phosphorus (P), % 0 to 0.030
0 to 0.035
Silicon (Si), % 0 to 0.6
0 to 0.6
Sulfur (S), % 0 to 0.030
0 to 0.030
Vanadium (V), % 3.8 to 4.4
0