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SAE-AISI T8 Steel vs. AISI 416Se Stainless Steel

Both SAE-AISI T8 steel and AISI 416Se stainless steel are iron alloys. They have 77% of their average alloy composition in common. There are 22 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI T8 steel and the bottom bar is AISI 416Se stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 78
76
Tensile Strength: Ultimate (UTS), MPa 780 to 2140
540

Thermal Properties

Latent Heat of Fusion, J/g 250
270
Melting Completion (Liquidus), °C 1730
1440
Melting Onset (Solidus), °C 1670
1400
Specific Heat Capacity, J/kg-K 420
480
Thermal Conductivity, W/m-K 18
30
Thermal Expansion, µm/m-K 12
10

Otherwise Unclassified Properties

Base Metal Price, % relative 45
8.0
Density, g/cm3 9.0
7.7
Embodied Carbon, kg CO2/kg material 10
1.9
Embodied Energy, MJ/kg 160
27
Embodied Water, L/kg 120
100

Common Calculations

PREN (Pitting Resistance) 30
13
Stiffness to Weight: Axial, points 12
14
Stiffness to Weight: Bending, points 22
25
Strength to Weight: Axial, points 24 to 66
20
Strength to Weight: Bending, points 21 to 41
19
Thermal Diffusivity, mm2/s 4.8
8.1
Thermal Shock Resistance, points 24 to 66
20

Alloy Composition

Carbon (C), % 0.75 to 0.85
0 to 0.15
Chromium (Cr), % 3.8 to 4.5
12 to 14
Cobalt (Co), % 4.3 to 5.8
0
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 69.3 to 75.4
83.1 to 87.9
Manganese (Mn), % 0.2 to 0.4
0 to 1.3
Molybdenum (Mo), % 0.4 to 1.0
0
Nickel (Ni), % 0 to 0.3
0
Phosphorus (P), % 0 to 0.030
0 to 0.060
Selenium (Se), % 0
0.15 to 0.35
Silicon (Si), % 0.2 to 0.4
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.060
Tungsten (W), % 13.3 to 14.8
0
Vanadium (V), % 1.8 to 2.4
0