AISI 202 Stainless Steel vs. SAE-AISI 1144 Steel
Both AISI 202 stainless steel and SAE-AISI 1144 steel are iron alloys. They have 69% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.
For each property being compared, the top bar is AISI 202 stainless steel and the bottom bar is SAE-AISI 1144 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 210 to 300 | |
| 220 to 230 |
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 190 |
| Elongation at Break, % | 14 to 45 | |
| 11 to 17 |
| Fatigue Strength, MPa | 290 to 330 | |
| 280 to 430 |
| Poisson's Ratio | 0.28 | |
| 0.29 |
| Shear Modulus, GPa | 77 | |
| 72 |
| Shear Strength, MPa | 490 to 590 | |
| 460 to 510 |
| Tensile Strength: Ultimate (UTS), MPa | 700 to 980 | |
| 750 to 840 |
| Tensile Strength: Yield (Proof), MPa | 310 to 580 | |
| 420 to 690 |
Thermal Properties
| Latent Heat of Fusion, J/g | 290 | |
| 250 |
| Maximum Temperature: Mechanical, °C | 910 | |
| 400 |
| Melting Completion (Liquidus), °C | 1400 | |
| 1450 |
| Melting Onset (Solidus), °C | 1360 | |
| 1410 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 470 |
| Thermal Conductivity, W/m-K | 15 | |
| 51 |
| Thermal Expansion, µm/m-K | 17 | |
| 13 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 2.4 | |
| 7.2 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 2.9 | |
| 8.2 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 13 | |
| 1.9 |
| Density, g/cm3 | 7.7 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 2.8 | |
| 1.4 |
| Embodied Energy, MJ/kg | 40 | |
| 19 |
| Embodied Water, L/kg | 150 | |
| 47 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 120 to 260 | |
| 91 to 110 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 250 to 840 | |
| 480 to 1290 |
| Stiffness to Weight: Axial, points | 14 | |
| 13 |
| Stiffness to Weight: Bending, points | 25 | |
| 24 |
| Strength to Weight: Axial, points | 25 to 35 | |
| 27 to 30 |
| Strength to Weight: Bending, points | 23 to 29 | |
| 23 to 25 |
| Thermal Diffusivity, mm2/s | 4.0 | |
| 14 |
| Thermal Shock Resistance, points | 15 to 21 | |
| 22 to 24 |
Alloy Composition
| Carbon (C), % | 0 to 0.15 | |
| 0.4 to 0.48 |
| Chromium (Cr), % | 17 to 19 | |
| 0 |
| Iron (Fe), % | 63.5 to 71.5 | |
| 97.5 to 98 |
| Manganese (Mn), % | 7.5 to 10 | |
| 1.4 to 1.7 |
| Nickel (Ni), % | 4.0 to 6.0 | |
| 0 |
| Nitrogen (N), % | 0 to 0.25 | |
| 0 |
| Phosphorus (P), % | 0 to 0.060 | |
| 0 to 0.040 |
| Silicon (Si), % | 0 to 1.0 | |
| 0 |
| Sulfur (S), % | 0 to 0.030 | |
| 0.24 to 0.33 |