EN 1.3961 Alloy vs. ASTM A229 Spring Steel
Both EN 1.3961 alloy and ASTM A229 spring steel are iron alloys. They have 63% of their average alloy composition in common. There are 24 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.
For each property being compared, the top bar is EN 1.3961 alloy and the bottom bar is ASTM A229 spring steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 190 |
| Elongation at Break, % | 31 | |
| 14 |
| Poisson's Ratio | 0.3 | |
| 0.29 |
| Shear Modulus, GPa | 72 | |
| 72 |
| Shear Strength, MPa | 300 | |
| 1020 to 1140 |
| Tensile Strength: Ultimate (UTS), MPa | 450 | |
| 1690 to 1890 |
| Tensile Strength: Yield (Proof), MPa | 310 | |
| 1100 to 1230 |
Thermal Properties
| Latent Heat of Fusion, J/g | 270 | |
| 250 |
| Melting Completion (Liquidus), °C | 1430 | |
| 1450 |
| Melting Onset (Solidus), °C | 1390 | |
| 1410 |
| Specific Heat Capacity, J/kg-K | 460 | |
| 470 |
| Thermal Expansion, µm/m-K | 1.3 | |
| 12 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 25 | |
| 1.8 |
| Density, g/cm3 | 8.2 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 4.8 | |
| 1.4 |
| Embodied Energy, MJ/kg | 66 | |
| 19 |
| Embodied Water, L/kg | 110 | |
| 46 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 130 | |
| 200 to 230 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 250 | |
| 3260 to 4080 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 23 | |
| 24 |
| Strength to Weight: Axial, points | 15 | |
| 60 to 67 |
| Strength to Weight: Bending, points | 16 | |
| 40 to 43 |
| Thermal Shock Resistance, points | 130 | |
| 54 to 60 |
Alloy Composition
| Carbon (C), % | 0 to 0.050 | |
| 0.55 to 0.85 |
| Chromium (Cr), % | 0 to 0.25 | |
| 0 |
| Iron (Fe), % | 60.7 to 65 | |
| 97.5 to 99 |
| Manganese (Mn), % | 0 to 0.5 | |
| 0.3 to 1.2 |
| Molybdenum (Mo), % | 0 to 1.0 | |
| 0 |
| Nickel (Ni), % | 35 to 37 | |
| 0 |
| Phosphorus (P), % | 0 to 0.030 | |
| 0 to 0.040 |
| Silicon (Si), % | 0 to 0.5 | |
| 0.15 to 0.35 |
| Sulfur (S), % | 0 to 0.020 | |
| 0 to 0.050 |