MakeItFrom.com
Menu (ESC)

SAE-AISI T8 Steel vs. EN 1.4421 Stainless Steel

Both SAE-AISI T8 steel and EN 1.4421 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 (10, 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 1.4421 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
880 to 1100

Thermal Properties

Latent Heat of Fusion, J/g 250
280
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
16
Thermal Expansion, µm/m-K 12
10

Otherwise Unclassified Properties

Base Metal Price, % relative 45
12
Density, g/cm3 9.0
7.8
Embodied Carbon, kg CO2/kg material 10
2.6
Embodied Energy, MJ/kg 160
36
Embodied Water, L/kg 120
130

Common Calculations

PREN (Pitting Resistance) 30
18
Stiffness to Weight: Axial, points 12
14
Stiffness to Weight: Bending, points 22
25
Strength to Weight: Axial, points 24 to 66
31 to 39
Strength to Weight: Bending, points 21 to 41
26 to 30
Thermal Diffusivity, mm2/s 4.8
4.4
Thermal Shock Resistance, points 24 to 66
31 to 39

Alloy Composition

Carbon (C), % 0.75 to 0.85
0 to 0.060
Chromium (Cr), % 3.8 to 4.5
15.5 to 17.5
Cobalt (Co), % 4.3 to 5.8
0
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 69.3 to 75.4
74.4 to 80.5
Manganese (Mn), % 0.2 to 0.4
0 to 1.0
Molybdenum (Mo), % 0.4 to 1.0
0 to 0.7
Nickel (Ni), % 0 to 0.3
4.0 to 5.5
Phosphorus (P), % 0 to 0.030
0 to 0.035
Silicon (Si), % 0.2 to 0.4
0 to 0.8
Sulfur (S), % 0 to 0.030
0 to 0.020
Tungsten (W), % 13.3 to 14.8
0
Vanadium (V), % 1.8 to 2.4
0

Comparable Variants