EN 1.4945 Stainless Steel vs. EN 1.4034 Stainless Steel
Both EN 1.4945 stainless steel and EN 1.4034 stainless steel are iron alloys. They have 76% of their average alloy composition in common. There are 32 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 EN 1.4945 stainless steel and the bottom bar is EN 1.4034 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 190 |
| Elongation at Break, % | 19 to 34 | |
| 11 to 14 |
| Fatigue Strength, MPa | 230 to 350 | |
| 230 to 400 |
| Poisson's Ratio | 0.28 | |
| 0.28 |
| Shear Modulus, GPa | 77 | |
| 76 |
| Shear Strength, MPa | 430 to 460 | |
| 420 to 540 |
| Tensile Strength: Ultimate (UTS), MPa | 640 to 740 | |
| 690 to 900 |
| Tensile Strength: Yield (Proof), MPa | 290 to 550 | |
| 390 to 730 |
Thermal Properties
| Latent Heat of Fusion, J/g | 290 | |
| 270 |
| Maximum Temperature: Corrosion, °C | 520 | |
| 390 |
| Maximum Temperature: Mechanical, °C | 920 | |
| 770 |
| Melting Completion (Liquidus), °C | 1490 | |
| 1440 |
| Melting Onset (Solidus), °C | 1440 | |
| 1390 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 480 |
| Thermal Conductivity, W/m-K | 14 | |
| 30 |
| Thermal Expansion, µm/m-K | 17 | |
| 11 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 2.9 | |
| 3.1 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 3.2 | |
| 3.7 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 30 | |
| 7.0 |
| Density, g/cm3 | 8.1 | |
| 7.7 |
| Embodied Carbon, kg CO2/kg material | 5.0 | |
| 2.0 |
| Embodied Energy, MJ/kg | 73 | |
| 27 |
| Embodied Water, L/kg | 150 | |
| 100 |
Common Calculations
| PREN (Pitting Resistance) | 23 | |
| 14 |
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 130 to 180 | |
| 81 to 94 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 210 to 760 | |
| 400 to 1370 |
| Stiffness to Weight: Axial, points | 14 | |
| 14 |
| Stiffness to Weight: Bending, points | 24 | |
| 25 |
| Strength to Weight: Axial, points | 22 to 25 | |
| 25 to 32 |
| Strength to Weight: Bending, points | 20 to 22 | |
| 22 to 27 |
| Thermal Diffusivity, mm2/s | 3.7 | |
| 8.1 |
| Thermal Shock Resistance, points | 14 to 16 | |
| 24 to 32 |
Alloy Composition
| Carbon (C), % | 0.040 to 0.1 | |
| 0.43 to 0.5 |
| Chromium (Cr), % | 15.5 to 17.5 | |
| 12.5 to 14.5 |
| Iron (Fe), % | 57.9 to 65.7 | |
| 83 to 87.1 |
| Manganese (Mn), % | 0 to 1.5 | |
| 0 to 1.0 |
| Nickel (Ni), % | 15.5 to 17.5 | |
| 0 |
| Niobium (Nb), % | 0.4 to 1.2 | |
| 0 |
| Nitrogen (N), % | 0.060 to 0.14 | |
| 0 |
| Phosphorus (P), % | 0 to 0.035 | |
| 0 to 0.040 |
| Silicon (Si), % | 0.3 to 0.6 | |
| 0 to 1.0 |
| Sulfur (S), % | 0 to 0.015 | |
| 0 to 0.015 |
| Tungsten (W), % | 2.5 to 3.5 | |
| 0 |