AISI 403 Stainless Steel vs. SAE-AISI 1108 Steel
Both AISI 403 stainless steel and SAE-AISI 1108 steel are iron alloys. They have 87% of their average alloy composition in common. There are 32 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 403 stainless steel and the bottom bar is SAE-AISI 1108 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 190 to 240 | |
| 110 to 140 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 190 |
| Elongation at Break, % | 16 to 25 | |
| 23 to 34 |
| Fatigue Strength, MPa | 200 to 340 | |
| 170 to 260 |
| Poisson's Ratio | 0.28 | |
| 0.29 |
| Reduction in Area, % | 47 to 50 | |
| 45 to 57 |
| Shear Modulus, GPa | 76 | |
| 73 |
| Shear Strength, MPa | 340 to 480 | |
| 250 to 280 |
| Tensile Strength: Ultimate (UTS), MPa | 530 to 780 | |
| 380 to 440 |
| Tensile Strength: Yield (Proof), MPa | 280 to 570 | |
| 220 to 360 |
Thermal Properties
| Latent Heat of Fusion, J/g | 270 | |
| 250 |
| Maximum Temperature: Mechanical, °C | 740 | |
| 400 |
| Melting Completion (Liquidus), °C | 1450 | |
| 1460 |
| Melting Onset (Solidus), °C | 1400 | |
| 1420 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 470 |
| Thermal Conductivity, W/m-K | 28 | |
| 52 |
| Thermal Expansion, µm/m-K | 9.9 | |
| 12 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 2.9 | |
| 7.0 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 3.3 | |
| 8.0 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 6.5 | |
| 1.8 |
| Density, g/cm3 | 7.8 | |
| 7.9 |
| Embodied Carbon, kg CO2/kg material | 1.9 | |
| 1.4 |
| Embodied Energy, MJ/kg | 27 | |
| 18 |
| Embodied Water, L/kg | 99 | |
| 46 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 110 to 120 | |
| 95 to 110 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 210 to 840 | |
| 130 to 340 |
| Stiffness to Weight: Axial, points | 14 | |
| 13 |
| Stiffness to Weight: Bending, points | 25 | |
| 24 |
| Strength to Weight: Axial, points | 19 to 28 | |
| 13 to 16 |
| Strength to Weight: Bending, points | 19 to 24 | |
| 15 to 16 |
| Thermal Diffusivity, mm2/s | 7.6 | |
| 14 |
| Thermal Shock Resistance, points | 20 to 29 | |
| 12 to 14 |
Alloy Composition
| Carbon (C), % | 0 to 0.15 | |
| 0.080 to 0.13 |
| Chromium (Cr), % | 11.5 to 13 | |
| 0 |
| Iron (Fe), % | 84.7 to 88.5 | |
| 98.9 to 99.24 |
| Manganese (Mn), % | 0 to 1.0 | |
| 0.6 to 0.8 |
| Nickel (Ni), % | 0 to 0.6 | |
| 0 |
| Phosphorus (P), % | 0 to 0.040 | |
| 0 to 0.040 |
| Silicon (Si), % | 0 to 0.5 | |
| 0 |
| Sulfur (S), % | 0 to 0.030 | |
| 0.080 to 0.13 |