SAE-AISI T5 Steel vs. S21800 Stainless Steel
Both SAE-AISI T5 steel and S21800 stainless steel are iron alloys. They have 67% of their average alloy composition in common. There are 20 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.
For each property being compared, the top bar is SAE-AISI T5 steel and the bottom bar is S21800 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
Elastic (Young's, Tensile) Modulus, GPa | 210 | |
190 |
Poisson's Ratio | 0.29 | |
0.28 |
Shear Modulus, GPa | 80 | |
75 |
Tensile Strength: Ultimate (UTS), MPa | 860 to 2140 | |
740 |
Thermal Properties
Latent Heat of Fusion, J/g | 250 | |
340 |
Melting Completion (Liquidus), °C | 1810 | |
1360 |
Melting Onset (Solidus), °C | 1750 | |
1310 |
Specific Heat Capacity, J/kg-K | 410 | |
500 |
Thermal Expansion, µm/m-K | 11 | |
16 |
Otherwise Unclassified Properties
Base Metal Price, % relative | 60 | |
15 |
Density, g/cm3 | 9.4 | |
7.5 |
Embodied Carbon, kg CO2/kg material | 11 | |
3.1 |
Embodied Energy, MJ/kg | 170 | |
45 |
Embodied Water, L/kg | 140 | |
150 |
Common Calculations
PREN (Pitting Resistance) | 37 | |
19 |
Stiffness to Weight: Axial, points | 12 | |
14 |
Stiffness to Weight: Bending, points | 21 | |
26 |
Strength to Weight: Axial, points | 25 to 63 | |
27 |
Strength to Weight: Bending, points | 21 to 39 | |
24 |
Thermal Shock Resistance, points | 26 to 66 | |
17 |
Alloy Composition
Carbon (C), % | 0.75 to 0.85 | |
0 to 0.1 |
Chromium (Cr), % | 3.8 to 5.0 | |
16 to 18 |
Cobalt (Co), % | 7.0 to 9.5 | |
0 |
Copper (Cu), % | 0 to 0.25 | |
0 |
Iron (Fe), % | 60.6 to 68.3 | |
59.1 to 65.4 |
Manganese (Mn), % | 0.2 to 0.4 | |
7.0 to 9.0 |
Molybdenum (Mo), % | 0.5 to 1.3 | |
0 |
Nickel (Ni), % | 0 to 0.3 | |
8.0 to 9.0 |
Nitrogen (N), % | 0 | |
0.080 to 0.18 |
Phosphorus (P), % | 0 to 0.030 | |
0 to 0.060 |
Silicon (Si), % | 0.2 to 0.4 | |
3.5 to 4.5 |
Sulfur (S), % | 0 to 0.030 | |
0 to 0.030 |
Tungsten (W), % | 17.5 to 19 | |
0 |
Vanadium (V), % | 1.8 to 2.4 | |
0 |