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SAE-AISI T8 Steel vs. EN 1.4310 Stainless Steel

Both SAE-AISI T8 steel and EN 1.4310 stainless steel are iron alloys. They have 78% 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 T8 steel and the bottom bar is EN 1.4310 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 78
77
Tensile Strength: Ultimate (UTS), MPa 780 to 2140
730 to 900

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Melting Completion (Liquidus), °C 1730
1420
Melting Onset (Solidus), °C 1670
1380
Specific Heat Capacity, J/kg-K 420
480
Thermal Conductivity, W/m-K 18
15
Thermal Expansion, µm/m-K 12
18

Otherwise Unclassified Properties

Base Metal Price, % relative 45
14
Density, g/cm3 9.0
7.8
Embodied Carbon, kg CO2/kg material 10
2.9
Embodied Energy, MJ/kg 160
42
Embodied Water, L/kg 120
140

Common Calculations

PREN (Pitting Resistance) 30
20
Stiffness to Weight: Axial, points 12
14
Stiffness to Weight: Bending, points 22
25
Strength to Weight: Axial, points 24 to 66
26 to 32
Strength to Weight: Bending, points 21 to 41
23 to 27
Thermal Diffusivity, mm2/s 4.8
4.0
Thermal Shock Resistance, points 24 to 66
15 to 18

Alloy Composition

Carbon (C), % 0.75 to 0.85
0.050 to 0.15
Chromium (Cr), % 3.8 to 4.5
16 to 19
Cobalt (Co), % 4.3 to 5.8
0
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 69.3 to 75.4
66.4 to 78
Manganese (Mn), % 0.2 to 0.4
0 to 2.0
Molybdenum (Mo), % 0.4 to 1.0
0 to 0.8
Nickel (Ni), % 0 to 0.3
6.0 to 9.5
Nitrogen (N), % 0
0 to 0.1
Phosphorus (P), % 0 to 0.030
0 to 0.045
Silicon (Si), % 0.2 to 0.4
0 to 2.0
Sulfur (S), % 0 to 0.030
0 to 0.015
Tungsten (W), % 13.3 to 14.8
0
Vanadium (V), % 1.8 to 2.4
0