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SAE-AISI D5 Steel vs. S38815 Stainless Steel

Both SAE-AISI D5 steel and S38815 stainless steel are iron alloys. They have 75% of their average alloy composition in common. There are 22 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI D5 steel and the bottom bar is S38815 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 5.4 to 14
34
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 75
74
Shear Strength, MPa 470 to 1180
410
Tensile Strength: Ultimate (UTS), MPa 770 to 2030
610

Thermal Properties

Latent Heat of Fusion, J/g 270
370
Melting Completion (Liquidus), °C 1430
1360
Melting Onset (Solidus), °C 1390
1310
Specific Heat Capacity, J/kg-K 480
500
Thermal Expansion, µm/m-K 11
15

Otherwise Unclassified Properties

Base Metal Price, % relative 13
19
Density, g/cm3 7.7
7.5
Embodied Carbon, kg CO2/kg material 3.5
3.8
Embodied Energy, MJ/kg 51
54
Embodied Water, L/kg 120
140

Common Calculations

PREN (Pitting Resistance) 15
18
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 28 to 73
22
Strength to Weight: Bending, points 24 to 46
21
Thermal Shock Resistance, points 26 to 67
15

Alloy Composition

Aluminum (Al), % 0
0 to 0.3
Carbon (C), % 1.4 to 1.6
0 to 0.030
Chromium (Cr), % 11 to 13
13 to 15
Cobalt (Co), % 2.5 to 3.5
0
Copper (Cu), % 0 to 0.25
0.75 to 1.5
Iron (Fe), % 77.9 to 84.4
56.1 to 67
Manganese (Mn), % 0 to 0.6
0 to 2.0
Molybdenum (Mo), % 0.7 to 1.2
0.75 to 1.5
Nickel (Ni), % 0 to 0.3
13 to 17
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0 to 0.6
5.5 to 6.5
Sulfur (S), % 0 to 0.030
0 to 0.020
Vanadium (V), % 0 to 1.0
0