ASTM A231 Spring Steel vs. EN 1.4567 Stainless Steel
Both ASTM A231 spring steel and EN 1.4567 stainless steel are iron alloys. They have 69% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.
For each property being compared, the top bar is ASTM A231 spring steel and the bottom bar is EN 1.4567 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 540 | |
| 190 to 240 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 190 |
| Elongation at Break, % | 14 | |
| 22 to 51 |
| Fatigue Strength, MPa | 1000 | |
| 190 to 260 |
| Poisson's Ratio | 0.29 | |
| 0.28 |
| Shear Modulus, GPa | 73 | |
| 76 |
| Shear Strength, MPa | 1080 | |
| 390 to 490 |
| Tensile Strength: Ultimate (UTS), MPa | 1790 | |
| 550 to 780 |
| Tensile Strength: Yield (Proof), MPa | 1570 | |
| 200 to 390 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 290 |
| Maximum Temperature: Mechanical, °C | 420 | |
| 930 |
| Melting Completion (Liquidus), °C | 1460 | |
| 1410 |
| Melting Onset (Solidus), °C | 1410 | |
| 1370 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 480 |
| Thermal Conductivity, W/m-K | 52 | |
| 11 |
| Thermal Expansion, µm/m-K | 13 | |
| 17 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.3 | |
| 2.4 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.4 | |
| 2.7 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 2.3 | |
| 16 |
| Density, g/cm3 | 7.8 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 2.0 | |
| 3.1 |
| Embodied Energy, MJ/kg | 28 | |
| 43 |
| Embodied Water, L/kg | 51 | |
| 150 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 230 | |
| 150 to 220 |
| Stiffness to Weight: Axial, points | 13 | |
| 14 |
| Stiffness to Weight: Bending, points | 24 | |
| 25 |
| Strength to Weight: Axial, points | 64 | |
| 19 to 27 |
| Strength to Weight: Bending, points | 42 | |
| 19 to 24 |
| Thermal Diffusivity, mm2/s | 14 | |
| 3.0 |
| Thermal Shock Resistance, points | 53 | |
| 12 to 17 |
Alloy Composition
| Carbon (C), % | 0.48 to 0.53 | |
| 0 to 0.040 |
| Chromium (Cr), % | 0.8 to 1.1 | |
| 17 to 19 |
| Copper (Cu), % | 0 | |
| 3.0 to 4.0 |
| Iron (Fe), % | 96.7 to 97.7 | |
| 63.3 to 71.5 |
| Manganese (Mn), % | 0.7 to 0.9 | |
| 0 to 2.0 |
| Nickel (Ni), % | 0 | |
| 8.5 to 10.5 |
| Nitrogen (N), % | 0 | |
| 0 to 0.1 |
| Phosphorus (P), % | 0 to 0.040 | |
| 0 to 0.045 |
| Silicon (Si), % | 0.15 to 0.35 | |
| 0 to 1.0 |
| Sulfur (S), % | 0 to 0.040 | |
| 0 to 0.015 |
| Vanadium (V), % | 0.15 to 0.3 | |
| 0 |