EN 1.4371 Stainless Steel vs. AISI 310S Stainless Steel
Both EN 1.4371 stainless steel and AISI 310S stainless steel are iron alloys. They have 75% of their average alloy composition in common.
For each property being compared, the top bar is EN 1.4371 stainless steel and the bottom bar is AISI 310S stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 220 to 230 | |
| 170 to 210 |
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 200 |
| Elongation at Break, % | 45 to 51 | |
| 34 to 44 |
| Fatigue Strength, MPa | 290 to 340 | |
| 250 to 280 |
| Poisson's Ratio | 0.28 | |
| 0.27 |
| Shear Modulus, GPa | 77 | |
| 79 |
| Shear Strength, MPa | 520 to 540 | |
| 420 to 470 |
| Tensile Strength: Ultimate (UTS), MPa | 740 to 750 | |
| 600 to 710 |
| Tensile Strength: Yield (Proof), MPa | 320 to 340 | |
| 270 to 350 |
Thermal Properties
| Latent Heat of Fusion, J/g | 280 | |
| 310 |
| Maximum Temperature: Corrosion, °C | 410 | |
| 450 |
| Maximum Temperature: Mechanical, °C | 880 | |
| 1100 |
| Melting Completion (Liquidus), °C | 1410 | |
| 1450 |
| Melting Onset (Solidus), °C | 1370 | |
| 1400 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 480 |
| Thermal Conductivity, W/m-K | 15 | |
| 16 |
| Thermal Expansion, µm/m-K | 17 | |
| 16 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 2.5 | |
| 2.0 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 2.9 | |
| 2.3 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 12 | |
| 25 |
| Density, g/cm3 | 7.7 | |
| 7.9 |
| Embodied Carbon, kg CO2/kg material | 2.6 | |
| 4.3 |
| Embodied Energy, MJ/kg | 38 | |
| 61 |
| Embodied Water, L/kg | 140 | |
| 190 |
Common Calculations
| PREN (Pitting Resistance) | 20 | |
| 25 |
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 270 to 310 | |
| 200 to 220 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 250 to 300 | |
| 190 to 310 |
| Stiffness to Weight: Axial, points | 14 | |
| 14 |
| Stiffness to Weight: Bending, points | 25 | |
| 25 |
| Strength to Weight: Axial, points | 27 | |
| 21 to 25 |
| Strength to Weight: Bending, points | 24 | |
| 20 to 22 |
| Thermal Diffusivity, mm2/s | 4.0 | |
| 4.1 |
| Thermal Shock Resistance, points | 16 | |
| 14 to 16 |
Alloy Composition
| Carbon (C), % | 0 to 0.030 | |
| 0 to 0.080 |
| Chromium (Cr), % | 16 to 17.5 | |
| 24 to 26 |
| Copper (Cu), % | 0 to 1.0 | |
| 0 |
| Iron (Fe), % | 66.7 to 74.4 | |
| 48.3 to 57 |
| Manganese (Mn), % | 6.0 to 8.0 | |
| 0 to 2.0 |
| Nickel (Ni), % | 3.5 to 5.5 | |
| 19 to 22 |
| Nitrogen (N), % | 0.15 to 0.25 | |
| 0 |
| Phosphorus (P), % | 0 to 0.045 | |
| 0 to 0.045 |
| Silicon (Si), % | 0 to 1.0 | |
| 0 to 1.5 |
| Sulfur (S), % | 0 to 0.015 | |
| 0 to 0.030 |