AISI 304 Stainless Steel vs. EN 1.4945 Stainless Steel
Both AISI 304 stainless steel and EN 1.4945 stainless steel are iron alloys. They have 89% of their average alloy composition in common. There are 33 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.
For each property being compared, the top bar is AISI 304 stainless steel and the bottom bar is EN 1.4945 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 170 to 360 | |
| 200 to 220 |
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 200 |
| Elongation at Break, % | 8.0 to 43 | |
| 19 to 34 |
| Fatigue Strength, MPa | 210 to 440 | |
| 230 to 350 |
| Poisson's Ratio | 0.28 | |
| 0.28 |
| Shear Modulus, GPa | 77 | |
| 77 |
| Shear Strength, MPa | 400 to 690 | |
| 430 to 460 |
| Tensile Strength: Ultimate (UTS), MPa | 580 to 1180 | |
| 640 to 740 |
| Tensile Strength: Yield (Proof), MPa | 230 to 860 | |
| 290 to 550 |
Thermal Properties
| Latent Heat of Fusion, J/g | 290 | |
| 290 |
| Maximum Temperature: Corrosion, °C | 420 | |
| 520 |
| Maximum Temperature: Mechanical, °C | 710 | |
| 920 |
| Melting Completion (Liquidus), °C | 1450 | |
| 1490 |
| Melting Onset (Solidus), °C | 1400 | |
| 1440 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 470 |
| Thermal Conductivity, W/m-K | 16 | |
| 14 |
| Thermal Expansion, µm/m-K | 17 | |
| 17 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 2.4 | |
| 2.9 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 2.7 | |
| 3.2 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 15 | |
| 30 |
| Density, g/cm3 | 7.8 | |
| 8.1 |
| Embodied Carbon, kg CO2/kg material | 3.0 | |
| 5.0 |
| Embodied Energy, MJ/kg | 43 | |
| 73 |
| Embodied Water, L/kg | 150 | |
| 150 |
Common Calculations
| PREN (Pitting Resistance) | 20 | |
| 23 |
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 86 to 250 | |
| 130 to 180 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 140 to 1870 | |
| 210 to 760 |
| Stiffness to Weight: Axial, points | 14 | |
| 14 |
| Stiffness to Weight: Bending, points | 25 | |
| 24 |
| Strength to Weight: Axial, points | 21 to 42 | |
| 22 to 25 |
| Strength to Weight: Bending, points | 20 to 32 | |
| 20 to 22 |
| Thermal Diffusivity, mm2/s | 4.2 | |
| 3.7 |
| Thermal Shock Resistance, points | 12 to 25 | |
| 14 to 16 |
Alloy Composition
| Carbon (C), % | 0 to 0.080 | |
| 0.040 to 0.1 |
| Chromium (Cr), % | 18 to 20 | |
| 15.5 to 17.5 |
| Iron (Fe), % | 66.5 to 74 | |
| 57.9 to 65.7 |
| Manganese (Mn), % | 0 to 2.0 | |
| 0 to 1.5 |
| Nickel (Ni), % | 8.0 to 10.5 | |
| 15.5 to 17.5 |
| Niobium (Nb), % | 0 | |
| 0.4 to 1.2 |
| Nitrogen (N), % | 0 to 0.1 | |
| 0.060 to 0.14 |
| Phosphorus (P), % | 0 to 0.045 | |
| 0 to 0.035 |
| Silicon (Si), % | 0 to 0.75 | |
| 0.3 to 0.6 |
| Sulfur (S), % | 0 to 0.030 | |
| 0 to 0.015 |
| Tungsten (W), % | 0 | |
| 2.5 to 3.5 |