S35000 Stainless Steel vs. SAE-AISI P21 Steel
Both S35000 stainless steel and SAE-AISI P21 steel are iron alloys. They have 80% of their average alloy composition in common. There are 24 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.
For each property being compared, the top bar is S35000 stainless steel and the bottom bar is SAE-AISI P21 steel.
Metric UnitsUS Customary Units
Mechanical Properties
Elastic (Young's, Tensile) Modulus, GPa | 200 | |
190 |
Poisson's Ratio | 0.28 | |
0.29 |
Rockwell C Hardness | 26 to 37 | |
35 |
Shear Modulus, GPa | 78 | |
73 |
Tensile Strength: Ultimate (UTS), MPa | 1300 to 1570 | |
1130 |
Thermal Properties
Latent Heat of Fusion, J/g | 280 | |
250 |
Melting Completion (Liquidus), °C | 1460 | |
1450 |
Melting Onset (Solidus), °C | 1410 | |
1410 |
Specific Heat Capacity, J/kg-K | 470 | |
470 |
Thermal Conductivity, W/m-K | 16 | |
41 |
Thermal Expansion, µm/m-K | 11 | |
12 |
Electrical Properties
Electrical Conductivity: Equal Volume, % IACS | 2.3 | |
7.9 |
Electrical Conductivity: Equal Weight (Specific), % IACS | 2.6 | |
9.0 |
Otherwise Unclassified Properties
Base Metal Price, % relative | 14 | |
6.5 |
Density, g/cm3 | 7.8 | |
7.9 |
Embodied Carbon, kg CO2/kg material | 3.2 | |
2.3 |
Embodied Energy, MJ/kg | 44 | |
32 |
Embodied Water, L/kg | 130 | |
62 |
Common Calculations
Stiffness to Weight: Axial, points | 14 | |
13 |
Stiffness to Weight: Bending, points | 25 | |
24 |
Strength to Weight: Axial, points | 46 to 56 | |
40 |
Strength to Weight: Bending, points | 34 to 38 | |
31 |
Thermal Diffusivity, mm2/s | 4.4 | |
11 |
Thermal Shock Resistance, points | 42 to 51 | |
37 |
Alloy Composition
Carbon (C), % | 0.070 to 0.11 | |
0.18 to 0.22 |
Chromium (Cr), % | 16 to 17 | |
0 to 0.5 |
Cobalt (Co), % | 0 | |
1.1 to 1.3 |
Copper (Cu), % | 0 | |
0 to 0.25 |
Iron (Fe), % | 72.7 to 76.9 | |
92.1 to 94.2 |
Manganese (Mn), % | 0.5 to 1.3 | |
0.35 to 0.72 |
Molybdenum (Mo), % | 2.5 to 3.2 | |
0 |
Nickel (Ni), % | 4.0 to 5.0 | |
3.9 to 4.3 |
Nitrogen (N), % | 0.070 to 0.13 | |
0 |
Phosphorus (P), % | 0 to 0.040 | |
0 to 0.030 |
Silicon (Si), % | 0 to 0.5 | |
0.2 to 0.4 |
Sulfur (S), % | 0 to 0.030 | |
0 to 0.030 |
Vanadium (V), % | 0 | |
0.15 to 0.25 |