S45500 Stainless Steel vs. S45503 Stainless Steel
Both S45500 stainless steel and S45503 stainless steel are iron alloys. Their average alloy composition is basically identical.
For each property being compared, the top bar is S45500 stainless steel and the bottom bar is S45503 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 280 to 500 | |
| 410 to 500 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 190 |
| Elongation at Break, % | 3.4 to 11 | |
| 4.6 to 6.8 |
| Fatigue Strength, MPa | 570 to 890 | |
| 710 to 800 |
| Poisson's Ratio | 0.28 | |
| 0.28 |
| Reduction in Area, % | 34 to 45 | |
| 17 to 28 |
| Rockwell C Hardness | 32 to 54 | |
| 46 to 54 |
| Shear Modulus, GPa | 75 | |
| 75 |
| Shear Strength, MPa | 790 to 1090 | |
| 940 to 1070 |
| Tensile Strength: Ultimate (UTS), MPa | 1370 to 1850 | |
| 1610 to 1850 |
| Tensile Strength: Yield (Proof), MPa | 1240 to 1700 | |
| 1430 to 1700 |
Thermal Properties
| Latent Heat of Fusion, J/g | 270 | |
| 270 |
| Maximum Temperature: Corrosion, °C | 620 | |
| 640 |
| Maximum Temperature: Mechanical, °C | 760 | |
| 760 |
| Melting Completion (Liquidus), °C | 1440 | |
| 1440 |
| Melting Onset (Solidus), °C | 1400 | |
| 1400 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 470 |
| Thermal Expansion, µm/m-K | 11 | |
| 11 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 17 | |
| 15 |
| Density, g/cm3 | 7.9 | |
| 7.9 |
| Embodied Carbon, kg CO2/kg material | 3.8 | |
| 3.4 |
| Embodied Energy, MJ/kg | 57 | |
| 48 |
| Embodied Water, L/kg | 120 | |
| 120 |
Common Calculations
| PREN (Pitting Resistance) | 13 | |
| 13 |
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 45 to 190 | |
| 82 to 110 |
| Stiffness to Weight: Axial, points | 14 | |
| 14 |
| Stiffness to Weight: Bending, points | 24 | |
| 24 |
| Strength to Weight: Axial, points | 48 to 65 | |
| 57 to 65 |
| Strength to Weight: Bending, points | 35 to 42 | |
| 39 to 43 |
| Thermal Shock Resistance, points | 48 to 64 | |
| 56 to 64 |
Alloy Composition
| Carbon (C), % | 0 to 0.050 | |
| 0 to 0.010 |
| Chromium (Cr), % | 11 to 12.5 | |
| 11 to 12.5 |
| Copper (Cu), % | 1.5 to 2.5 | |
| 1.5 to 2.5 |
| Iron (Fe), % | 71.5 to 79.2 | |
| 72.4 to 78.9 |
| Manganese (Mn), % | 0 to 0.5 | |
| 0 to 0.5 |
| Molybdenum (Mo), % | 0 to 0.5 | |
| 0 to 0.5 |
| Nickel (Ni), % | 7.5 to 9.5 | |
| 7.5 to 9.5 |
| Niobium (Nb), % | 0 to 0.5 | |
| 0.1 to 0.5 |
| Phosphorus (P), % | 0 to 0.040 | |
| 0 to 0.010 |
| Silicon (Si), % | 0 to 0.5 | |
| 0 to 0.2 |
| Sulfur (S), % | 0 to 0.030 | |
| 0 to 0.010 |
| Tantalum (Ta), % | 0 to 0.5 | |
| 0 |
| Titanium (Ti), % | 0.8 to 1.4 | |
| 1.0 to 1.4 |