ASTM A232 Spring Steel vs. EN 1.1133 Steel
Both ASTM A232 spring steel and EN 1.1133 steel are iron alloys. They have a very high 99% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.
For each property being compared, the top bar is ASTM A232 spring steel and the bottom bar is EN 1.1133 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 540 | |
| 170 to 180 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 190 |
| Elongation at Break, % | 14 | |
| 19 to 24 |
| Fatigue Strength, MPa | 1040 | |
| 230 to 310 |
| Poisson's Ratio | 0.29 | |
| 0.29 |
| Shear Modulus, GPa | 73 | |
| 73 |
| Shear Strength, MPa | 1090 | |
| 370 to 380 |
| Tensile Strength: Ultimate (UTS), MPa | 1790 | |
| 580 to 620 |
| Tensile Strength: Yield (Proof), MPa | 1610 | |
| 320 to 460 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 250 |
| Maximum Temperature: Mechanical, °C | 420 | |
| 400 |
| Melting Completion (Liquidus), °C | 1460 | |
| 1460 |
| Melting Onset (Solidus), °C | 1410 | |
| 1420 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 470 |
| Thermal Conductivity, W/m-K | 52 | |
| 49 |
| Thermal Expansion, µm/m-K | 13 | |
| 12 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.3 | |
| 7.3 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.4 | |
| 8.3 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 2.3 | |
| 2.1 |
| Density, g/cm3 | 7.8 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 2.0 | |
| 1.5 |
| Embodied Energy, MJ/kg | 28 | |
| 19 |
| Embodied Water, L/kg | 51 | |
| 48 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 250 | |
| 110 to 120 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 24 | |
| 24 |
| Strength to Weight: Axial, points | 64 | |
| 21 to 22 |
| Strength to Weight: Bending, points | 42 | |
| 20 to 21 |
| Thermal Diffusivity, mm2/s | 14 | |
| 13 |
| Thermal Shock Resistance, points | 53 | |
| 18 to 19 |
Alloy Composition
| Carbon (C), % | 0.48 to 0.53 | |
| 0.17 to 0.23 |
| Chromium (Cr), % | 0.8 to 1.1 | |
| 0 to 0.4 |
| Iron (Fe), % | 96.8 to 97.7 | |
| 96.9 to 98.8 |
| Manganese (Mn), % | 0.7 to 0.9 | |
| 1.0 to 1.5 |
| Molybdenum (Mo), % | 0 | |
| 0 to 0.1 |
| Nickel (Ni), % | 0 | |
| 0 to 0.4 |
| Phosphorus (P), % | 0 to 0.020 | |
| 0 to 0.035 |
| Silicon (Si), % | 0.15 to 0.35 | |
| 0 to 0.4 |
| Sulfur (S), % | 0 to 0.035 | |
| 0 to 0.035 |
| Vanadium (V), % | 0.15 to 0.3 | |
| 0 |