ASTM A229 Spring Steel vs. ASTM A217 Cast Steel
Both ASTM A229 spring steel and ASTM A217 cast steel are iron alloys. 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 A229 spring steel and the bottom bar is ASTM A217 cast steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 490 to 550 | |
| 160 to 210 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 190 |
| Elongation at Break, % | 14 | |
| 21 to 27 |
| Fatigue Strength, MPa | 710 to 790 | |
| 200 to 320 |
| Poisson's Ratio | 0.29 | |
| 0.28 to 0.29 |
| Shear Modulus, GPa | 72 | |
| 73 to 75 |
| Tensile Strength: Ultimate (UTS), MPa | 1690 to 1890 | |
| 540 to 710 |
| Tensile Strength: Yield (Proof), MPa | 1100 to 1230 | |
| 270 to 460 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 250 to 270 |
| Maximum Temperature: Mechanical, °C | 400 | |
| 410 to 600 |
| Melting Completion (Liquidus), °C | 1450 | |
| 1450 to 1460 |
| Melting Onset (Solidus), °C | 1410 | |
| 1410 to 1420 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 470 |
| Thermal Conductivity, W/m-K | 50 | |
| 26 to 50 |
| Thermal Expansion, µm/m-K | 12 | |
| 13 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.2 | |
| 7.3 to 9.2 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.3 | |
| 8.4 to 11 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 1.8 | |
| 2.4 to 7.0 |
| Density, g/cm3 | 7.8 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 1.4 | |
| 1.5 to 2.1 |
| Embodied Energy, MJ/kg | 19 | |
| 20 to 28 |
| Embodied Water, L/kg | 46 | |
| 47 to 87 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 200 to 230 | |
| 110 to 130 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 3260 to 4080 | |
| 190 to 570 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 to 14 |
| Stiffness to Weight: Bending, points | 24 | |
| 24 to 25 |
| Strength to Weight: Axial, points | 60 to 67 | |
| 19 to 25 |
| Strength to Weight: Bending, points | 40 to 43 | |
| 19 to 23 |
| Thermal Diffusivity, mm2/s | 14 | |
| 6.9 to 14 |
| Thermal Shock Resistance, points | 54 to 60 | |
| 16 to 20 |