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SAE-AISI T8 Steel vs. EN 1.4615 Stainless Steel

Both SAE-AISI T8 steel and EN 1.4615 stainless steel are iron alloys. They have 73% 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 EN 1.4615 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
500

Thermal Properties

Latent Heat of Fusion, J/g 250
280
Melting Completion (Liquidus), °C 1730
1400
Melting Onset (Solidus), °C 1670
1360
Specific Heat Capacity, J/kg-K 420
480
Thermal Conductivity, W/m-K 18
15
Thermal Expansion, µm/m-K 12
17

Otherwise Unclassified Properties

Base Metal Price, % relative 45
13
Density, g/cm3 9.0
7.8
Embodied Carbon, kg CO2/kg material 10
2.8
Embodied Energy, MJ/kg 160
40
Embodied Water, L/kg 120
140

Common Calculations

PREN (Pitting Resistance) 30
17
Stiffness to Weight: Axial, points 12
14
Stiffness to Weight: Bending, points 22
25
Strength to Weight: Axial, points 24 to 66
18
Strength to Weight: Bending, points 21 to 41
18
Thermal Diffusivity, mm2/s 4.8
4.1
Thermal Shock Resistance, points 24 to 66
11

Alloy Composition

Carbon (C), % 0.75 to 0.85
0 to 0.030
Chromium (Cr), % 3.8 to 4.5
14 to 16
Cobalt (Co), % 4.3 to 5.8
0
Copper (Cu), % 0 to 0.25
2.0 to 4.0
Iron (Fe), % 69.3 to 75.4
63.1 to 72.5
Manganese (Mn), % 0.2 to 0.4
7.0 to 9.0
Molybdenum (Mo), % 0.4 to 1.0
0 to 0.8
Nickel (Ni), % 0 to 0.3
4.5 to 6.0
Nitrogen (N), % 0
0.020 to 0.060
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0.2 to 0.4
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.010
Tungsten (W), % 13.3 to 14.8
0
Vanadium (V), % 1.8 to 2.4
0