EN 1.4303 Stainless Steel vs. AISI 305 Stainless Steel
Both EN 1.4303 stainless steel and AISI 305 stainless steel are iron alloys. Their average alloy composition is basically identical. There are 33 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.
For each property being compared, the top bar is EN 1.4303 stainless steel and the bottom bar is AISI 305 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 190 to 270 | |
| 170 to 220 |
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 200 |
| Elongation at Break, % | 13 to 49 | |
| 34 to 45 |
| Fatigue Strength, MPa | 220 to 320 | |
| 210 to 280 |
| Poisson's Ratio | 0.28 | |
| 0.28 |
| Shear Modulus, GPa | 77 | |
| 77 |
| Shear Strength, MPa | 420 to 540 | |
| 400 to 470 |
| Tensile Strength: Ultimate (UTS), MPa | 590 to 900 | |
| 580 to 710 |
| Tensile Strength: Yield (Proof), MPa | 230 to 560 | |
| 230 to 350 |
Thermal Properties
| Latent Heat of Fusion, J/g | 290 | |
| 290 |
| Maximum Temperature: Corrosion, °C | 410 | |
| 410 |
| Maximum Temperature: Mechanical, °C | 940 | |
| 540 |
| Melting Completion (Liquidus), °C | 1420 | |
| 1450 |
| Melting Onset (Solidus), °C | 1380 | |
| 1400 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 480 |
| Thermal Conductivity, W/m-K | 15 | |
| 16 |
| Thermal Expansion, µm/m-K | 16 | |
| 17 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 2.4 | |
| 2.4 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 2.7 | |
| 2.7 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 17 | |
| 16 |
| Density, g/cm3 | 7.8 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 3.2 | |
| 3.2 |
| Embodied Energy, MJ/kg | 46 | |
| 45 |
| Embodied Water, L/kg | 150 | |
| 150 |
Common Calculations
| PREN (Pitting Resistance) | 19 | |
| 18 |
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 110 to 230 | |
| 200 to 210 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 140 to 800 | |
| 130 to 320 |
| Stiffness to Weight: Axial, points | 14 | |
| 14 |
| Stiffness to Weight: Bending, points | 25 | |
| 25 |
| Strength to Weight: Axial, points | 21 to 32 | |
| 20 to 25 |
| Strength to Weight: Bending, points | 20 to 26 | |
| 20 to 23 |
| Thermal Diffusivity, mm2/s | 4.0 | |
| 4.2 |
| Thermal Shock Resistance, points | 13 to 20 | |
| 13 to 15 |
Alloy Composition
| Carbon (C), % | 0 to 0.060 | |
| 0 to 0.12 |
| Chromium (Cr), % | 17 to 19 | |
| 17 to 19 |
| Iron (Fe), % | 64.8 to 72 | |
| 65.1 to 72.5 |
| Manganese (Mn), % | 0 to 2.0 | |
| 0 to 2.0 |
| Nickel (Ni), % | 11 to 13 | |
| 10.5 to 13 |
| Nitrogen (N), % | 0 to 0.1 | |
| 0 |
| Phosphorus (P), % | 0 to 0.045 | |
| 0 to 0.045 |
| Silicon (Si), % | 0 to 1.0 | |
| 0 to 0.75 |
| Sulfur (S), % | 0 to 0.015 | |
| 0 to 0.030 |