S45503 Stainless Steel vs. AISI 431 Stainless Steel
Both S45503 stainless steel and AISI 431 stainless steel are iron alloys. They have 90% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.
For each property being compared, the top bar is S45503 stainless steel and the bottom bar is AISI 431 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 410 to 500 | |
| 250 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 200 |
| Elongation at Break, % | 4.6 to 6.8 | |
| 15 to 17 |
| Fatigue Strength, MPa | 710 to 800 | |
| 430 to 610 |
| Poisson's Ratio | 0.28 | |
| 0.28 |
| Rockwell C Hardness | 46 to 54 | |
| 26 |
| Shear Modulus, GPa | 75 | |
| 77 |
| Shear Strength, MPa | 940 to 1070 | |
| 550 to 840 |
| Tensile Strength: Ultimate (UTS), MPa | 1610 to 1850 | |
| 890 to 1380 |
| Tensile Strength: Yield (Proof), MPa | 1430 to 1700 | |
| 710 to 1040 |
Thermal Properties
| Latent Heat of Fusion, J/g | 270 | |
| 280 |
| Maximum Temperature: Corrosion, °C | 640 | |
| 400 |
| Maximum Temperature: Mechanical, °C | 760 | |
| 850 |
| Melting Completion (Liquidus), °C | 1440 | |
| 1510 |
| Melting Onset (Solidus), °C | 1400 | |
| 1450 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 480 |
| Thermal Expansion, µm/m-K | 11 | |
| 12 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 15 | |
| 9.0 |
| Density, g/cm3 | 7.9 | |
| 7.7 |
| Embodied Carbon, kg CO2/kg material | 3.4 | |
| 2.2 |
| Embodied Energy, MJ/kg | 48 | |
| 31 |
| Embodied Water, L/kg | 120 | |
| 120 |
Common Calculations
| PREN (Pitting Resistance) | 13 | |
| 16 |
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 82 to 110 | |
| 140 to 180 |
| Stiffness to Weight: Axial, points | 14 | |
| 14 |
| Stiffness to Weight: Bending, points | 24 | |
| 25 |
| Strength to Weight: Axial, points | 57 to 65 | |
| 32 to 50 |
| Strength to Weight: Bending, points | 39 to 43 | |
| 27 to 36 |
| Thermal Shock Resistance, points | 56 to 64 | |
| 28 to 43 |
Alloy Composition
| Carbon (C), % | 0 to 0.010 | |
| 0 to 0.2 |
| Chromium (Cr), % | 11 to 12.5 | |
| 15 to 17 |
| Copper (Cu), % | 1.5 to 2.5 | |
| 0 |
| Iron (Fe), % | 72.4 to 78.9 | |
| 78.2 to 83.8 |
| Manganese (Mn), % | 0 to 0.5 | |
| 0 to 1.0 |
| Molybdenum (Mo), % | 0 to 0.5 | |
| 0 |
| Nickel (Ni), % | 7.5 to 9.5 | |
| 1.3 to 2.5 |
| Niobium (Nb), % | 0.1 to 0.5 | |
| 0 |
| Phosphorus (P), % | 0 to 0.010 | |
| 0 to 0.040 |
| Silicon (Si), % | 0 to 0.2 | |
| 0 to 1.0 |
| Sulfur (S), % | 0 to 0.010 | |
| 0 to 0.030 |
| Titanium (Ti), % | 1.0 to 1.4 | |
| 0 |