EN 1.4612 Stainless Steel vs. ASTM A227 Spring Steel
Both EN 1.4612 stainless steel and ASTM A227 spring steel are iron alloys. They have 74% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (8, 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 ASTM A227 spring steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 190 |
| Elongation at Break, % | 11 | |
| 12 |
| Fatigue Strength, MPa | 860 to 950 | |
| 900 to 1160 |
| Poisson's Ratio | 0.28 | |
| 0.29 |
| Shear Modulus, GPa | 76 | |
| 72 |
| Shear Strength, MPa | 1010 to 1110 | |
| 1030 to 1330 |
| Tensile Strength: Ultimate (UTS), MPa | 1690 to 1850 | |
| 1720 to 2220 |
| Tensile Strength: Yield (Proof), MPa | 1570 to 1730 | |
| 1430 to 1850 |
Thermal Properties
| Latent Heat of Fusion, J/g | 280 | |
| 250 |
| Maximum Temperature: Mechanical, °C | 790 | |
| 400 |
| Melting Completion (Liquidus), °C | 1450 | |
| 1450 |
| Melting Onset (Solidus), °C | 1400 | |
| 1410 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 470 |
| Thermal Expansion, µm/m-K | 11 | |
| 12 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 16 | |
| 1.8 |
| Density, g/cm3 | 7.9 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 3.6 | |
| 1.4 |
| Embodied Energy, MJ/kg | 50 | |
| 19 |
| Embodied Water, L/kg | 140 | |
| 46 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 190 to 210 | |
| 200 to 260 |
| Stiffness to Weight: Axial, points | 14 | |
| 13 |
| Stiffness to Weight: Bending, points | 25 | |
| 24 |
| Strength to Weight: Axial, points | 60 to 65 | |
| 61 to 79 |
| Strength to Weight: Bending, points | 40 to 43 | |
| 41 to 48 |
| Thermal Shock Resistance, points | 58 to 63 | |
| 55 to 71 |
Alloy Composition
| Aluminum (Al), % | 1.4 to 1.8 | |
| 0 |
| Carbon (C), % | 0 to 0.015 | |
| 0.45 to 0.85 |
| Chromium (Cr), % | 11 to 12.5 | |
| 0 |
| Iron (Fe), % | 71.5 to 75.5 | |
| 97.4 to 99.1 |
| Manganese (Mn), % | 0 to 0.1 | |
| 0.3 to 1.3 |
| Molybdenum (Mo), % | 1.8 to 2.3 | |
| 0 |
| Nickel (Ni), % | 10.2 to 11.3 | |
| 0 |
| Nitrogen (N), % | 0 to 0.010 | |
| 0 |
| Phosphorus (P), % | 0 to 0.010 | |
| 0 to 0.040 |
| Silicon (Si), % | 0 to 0.1 | |
| 0.15 to 0.35 |
| Sulfur (S), % | 0 to 0.0050 | |
| 0 to 0.050 |
| Titanium (Ti), % | 0.2 to 0.5 | |
| 0 |