EN 1.4305 Stainless Steel vs. EN 1.4371 Stainless Steel
Both EN 1.4305 stainless steel and EN 1.4371 stainless steel are iron alloys. They have a moderately high 94% of their average alloy composition in common.
For each property being compared, the top bar is EN 1.4305 stainless steel and the bottom bar is EN 1.4371 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 200 to 270 | |
| 220 to 230 |
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 200 |
| Elongation at Break, % | 14 to 40 | |
| 45 to 51 |
| Fatigue Strength, MPa | 190 to 330 | |
| 290 to 340 |
| Poisson's Ratio | 0.28 | |
| 0.28 |
| Shear Modulus, GPa | 77 | |
| 77 |
| Shear Strength, MPa | 420 to 550 | |
| 520 to 540 |
| Tensile Strength: Ultimate (UTS), MPa | 610 to 900 | |
| 740 to 750 |
| Tensile Strength: Yield (Proof), MPa | 220 to 570 | |
| 320 to 340 |
Thermal Properties
| Latent Heat of Fusion, J/g | 290 | |
| 280 |
| Maximum Temperature: Corrosion, °C | 410 | |
| 410 |
| Maximum Temperature: Mechanical, °C | 930 | |
| 880 |
| Melting Completion (Liquidus), °C | 1420 | |
| 1410 |
| Melting Onset (Solidus), °C | 1380 | |
| 1370 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 480 |
| Thermal Conductivity, W/m-K | 15 | |
| 15 |
| Thermal Expansion, µm/m-K | 16 | |
| 17 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 2.4 | |
| 2.5 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 2.7 | |
| 2.9 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 15 | |
| 12 |
| Density, g/cm3 | 7.8 | |
| 7.7 |
| Embodied Carbon, kg CO2/kg material | 3.0 | |
| 2.6 |
| Embodied Energy, MJ/kg | 42 | |
| 38 |
| Embodied Water, L/kg | 140 | |
| 140 |
Common Calculations
| PREN (Pitting Resistance) | 19 | |
| 20 |
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 110 to 190 | |
| 270 to 310 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 120 to 830 | |
| 250 to 300 |
| Stiffness to Weight: Axial, points | 14 | |
| 14 |
| Stiffness to Weight: Bending, points | 25 | |
| 25 |
| Strength to Weight: Axial, points | 22 to 32 | |
| 27 |
| Strength to Weight: Bending, points | 20 to 27 | |
| 24 |
| Thermal Diffusivity, mm2/s | 4.0 | |
| 4.0 |
| Thermal Shock Resistance, points | 14 to 20 | |
| 16 |
Alloy Composition
| Carbon (C), % | 0 to 0.1 | |
| 0 to 0.030 |
| Chromium (Cr), % | 17 to 19 | |
| 16 to 17.5 |
| Copper (Cu), % | 0 to 1.0 | |
| 0 to 1.0 |
| Iron (Fe), % | 66.4 to 74.9 | |
| 66.7 to 74.4 |
| Manganese (Mn), % | 0 to 2.0 | |
| 6.0 to 8.0 |
| Nickel (Ni), % | 8.0 to 10 | |
| 3.5 to 5.5 |
| Nitrogen (N), % | 0 to 0.1 | |
| 0.15 to 0.25 |
| Phosphorus (P), % | 0 to 0.045 | |
| 0 to 0.045 |
| Silicon (Si), % | 0 to 1.0 | |
| 0 to 1.0 |
| Sulfur (S), % | 0.15 to 0.35 | |
| 0 to 0.015 |