EN 1.4525 Stainless Steel vs. ASTM Grade HD Steel
Both EN 1.4525 stainless steel and ASTM grade HD steel are iron alloys. They have 86% of their average alloy composition in common.
For each property being compared, the top bar is EN 1.4525 stainless steel and the bottom bar is ASTM grade HD steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 200 |
| Elongation at Break, % | 5.6 to 13 | |
| 9.1 |
| Fatigue Strength, MPa | 480 to 540 | |
| 140 |
| Poisson's Ratio | 0.28 | |
| 0.27 |
| Shear Modulus, GPa | 76 | |
| 80 |
| Tensile Strength: Ultimate (UTS), MPa | 1030 to 1250 | |
| 590 |
| Tensile Strength: Yield (Proof), MPa | 840 to 1120 | |
| 270 |
Thermal Properties
| Latent Heat of Fusion, J/g | 280 | |
| 310 |
| Maximum Temperature: Corrosion, °C | 430 | |
| 460 |
| Maximum Temperature: Mechanical, °C | 860 | |
| 1100 |
| Melting Completion (Liquidus), °C | 1430 | |
| 1410 |
| Melting Onset (Solidus), °C | 1390 | |
| 1370 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 490 |
| Thermal Conductivity, W/m-K | 18 | |
| 16 |
| Thermal Expansion, µm/m-K | 11 | |
| 11 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 2.2 | |
| 2.1 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 2.6 | |
| 2.5 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 13 | |
| 17 |
| Density, g/cm3 | 7.8 | |
| 7.7 |
| Embodied Carbon, kg CO2/kg material | 2.8 | |
| 3.1 |
| Embodied Energy, MJ/kg | 39 | |
| 45 |
| Embodied Water, L/kg | 130 | |
| 180 |
Common Calculations
| PREN (Pitting Resistance) | 18 | |
| 29 |
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 68 to 130 | |
| 44 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 1820 to 3230 | |
| 180 |
| Stiffness to Weight: Axial, points | 14 | |
| 15 |
| Stiffness to Weight: Bending, points | 25 | |
| 26 |
| Strength to Weight: Axial, points | 36 to 45 | |
| 21 |
| Strength to Weight: Bending, points | 29 to 33 | |
| 20 |
| Thermal Diffusivity, mm2/s | 4.7 | |
| 4.3 |
| Thermal Shock Resistance, points | 34 to 41 | |
| 19 |
Alloy Composition
| Carbon (C), % | 0 to 0.070 | |
| 0 to 0.5 |
| Chromium (Cr), % | 15 to 17 | |
| 26 to 30 |
| Copper (Cu), % | 2.5 to 4.0 | |
| 0 |
| Iron (Fe), % | 70.4 to 79 | |
| 58.4 to 70 |
| Manganese (Mn), % | 0 to 1.0 | |
| 0 to 1.5 |
| Molybdenum (Mo), % | 0 to 0.8 | |
| 0 to 0.5 |
| Nickel (Ni), % | 3.5 to 5.5 | |
| 4.0 to 7.0 |
| Niobium (Nb), % | 0 to 0.35 | |
| 0 |
| Nitrogen (N), % | 0 to 0.050 | |
| 0 |
| Phosphorus (P), % | 0 to 0.035 | |
| 0 to 0.040 |
| Silicon (Si), % | 0 to 0.8 | |
| 0 to 2.0 |
| Sulfur (S), % | 0 to 0.025 | |
| 0 to 0.040 |