EN 1.4612 Stainless Steel vs. EN 1.4938 Stainless Steel
Both EN 1.4612 stainless steel and EN 1.4938 stainless steel are iron alloys. They have 90% of their average alloy composition in common. There are 27 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.
For each property being compared, the top bar is EN 1.4612 stainless steel and the bottom bar is EN 1.4938 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 200 |
| Elongation at Break, % | 11 | |
| 16 to 17 |
| Fatigue Strength, MPa | 860 to 950 | |
| 390 to 520 |
| Poisson's Ratio | 0.28 | |
| 0.28 |
| Shear Modulus, GPa | 76 | |
| 76 |
| Shear Strength, MPa | 1010 to 1110 | |
| 540 to 630 |
| Tensile Strength: Ultimate (UTS), MPa | 1690 to 1850 | |
| 870 to 1030 |
| Tensile Strength: Yield (Proof), MPa | 1570 to 1730 | |
| 640 to 870 |
Thermal Properties
| Latent Heat of Fusion, J/g | 280 | |
| 270 |
| Maximum Temperature: Corrosion, °C | 450 | |
| 390 |
| Maximum Temperature: Mechanical, °C | 790 | |
| 750 |
| Melting Completion (Liquidus), °C | 1450 | |
| 1460 |
| Melting Onset (Solidus), °C | 1400 | |
| 1420 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 470 |
| Thermal Expansion, µm/m-K | 11 | |
| 11 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 16 | |
| 10 |
| Density, g/cm3 | 7.9 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 3.6 | |
| 3.3 |
| Embodied Energy, MJ/kg | 50 | |
| 47 |
| Embodied Water, L/kg | 140 | |
| 110 |
Common Calculations
| PREN (Pitting Resistance) | 19 | |
| 18 |
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 190 to 210 | |
| 140 to 160 |
| Stiffness to Weight: Axial, points | 14 | |
| 14 |
| Stiffness to Weight: Bending, points | 25 | |
| 25 |
| Strength to Weight: Axial, points | 60 to 65 | |
| 31 to 37 |
| Strength to Weight: Bending, points | 40 to 43 | |
| 26 to 29 |
| Thermal Shock Resistance, points | 58 to 63 | |
| 30 to 35 |
Alloy Composition
| Aluminum (Al), % | 1.4 to 1.8 | |
| 0 |
| Carbon (C), % | 0 to 0.015 | |
| 0.080 to 0.15 |
| Chromium (Cr), % | 11 to 12.5 | |
| 11 to 12.5 |
| Iron (Fe), % | 71.5 to 75.5 | |
| 80.5 to 84.8 |
| Manganese (Mn), % | 0 to 0.1 | |
| 0.4 to 0.9 |
| Molybdenum (Mo), % | 1.8 to 2.3 | |
| 1.5 to 2.0 |
| Nickel (Ni), % | 10.2 to 11.3 | |
| 2.0 to 3.0 |
| Nitrogen (N), % | 0 to 0.010 | |
| 0.020 to 0.040 |
| Phosphorus (P), % | 0 to 0.010 | |
| 0 to 0.025 |
| Silicon (Si), % | 0 to 0.1 | |
| 0 to 0.5 |
| Sulfur (S), % | 0 to 0.0050 | |
| 0 to 0.015 |
| Titanium (Ti), % | 0.2 to 0.5 | |
| 0 |
| Vanadium (V), % | 0 | |
| 0.25 to 0.4 |