ASTM A232 Spring Steel vs. SAE-AISI 5130 Steel
Both ASTM A232 spring steel and SAE-AISI 5130 steel are iron alloys. Their average alloy composition is basically identical. There are 30 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.
For each property being compared, the top bar is ASTM A232 spring steel and the bottom bar is SAE-AISI 5130 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 540 | |
| 150 to 190 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 190 |
| Elongation at Break, % | 14 | |
| 12 to 22 |
| Fatigue Strength, MPa | 1040 | |
| 230 to 330 |
| Poisson's Ratio | 0.29 | |
| 0.29 |
| Shear Modulus, GPa | 73 | |
| 73 |
| Shear Strength, MPa | 1090 | |
| 310 to 390 |
| Tensile Strength: Ultimate (UTS), MPa | 1790 | |
| 500 to 640 |
| Tensile Strength: Yield (Proof), MPa | 1610 | |
| 330 to 530 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 250 |
| Maximum Temperature: Mechanical, °C | 420 | |
| 420 |
| 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 | |
| 45 |
| Thermal Expansion, µm/m-K | 13 | |
| 12 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.3 | |
| 7.2 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.4 | |
| 8.3 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 2.3 | |
| 2.2 |
| Density, g/cm3 | 7.8 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 2.0 | |
| 1.4 |
| Embodied Energy, MJ/kg | 28 | |
| 19 |
| Embodied Water, L/kg | 51 | |
| 50 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 250 | |
| 74 to 98 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 24 | |
| 24 |
| Strength to Weight: Axial, points | 64 | |
| 18 to 23 |
| Strength to Weight: Bending, points | 42 | |
| 18 to 21 |
| Thermal Diffusivity, mm2/s | 14 | |
| 12 |
| Thermal Shock Resistance, points | 53 | |
| 16 to 20 |
Alloy Composition
| Carbon (C), % | 0.48 to 0.53 | |
| 0.28 to 0.33 |
| Chromium (Cr), % | 0.8 to 1.1 | |
| 0.8 to 1.1 |
| Iron (Fe), % | 96.8 to 97.7 | |
| 97.2 to 98.1 |
| Manganese (Mn), % | 0.7 to 0.9 | |
| 0.7 to 0.9 |
| Phosphorus (P), % | 0 to 0.020 | |
| 0 to 0.035 |
| Silicon (Si), % | 0.15 to 0.35 | |
| 0.15 to 0.35 |
| Sulfur (S), % | 0 to 0.035 | |
| 0 to 0.040 |
| Vanadium (V), % | 0.15 to 0.3 | |
| 0 |