S66286 Stainless Steel vs. ASTM A227 Spring Steel
Both S66286 stainless steel and ASTM A227 spring steel are iron alloys. They have 55% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.
For each property being compared, the top bar is S66286 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, % | 17 to 40 | |
| 12 |
| Fatigue Strength, MPa | 240 to 410 | |
| 900 to 1160 |
| Poisson's Ratio | 0.29 | |
| 0.29 |
| Shear Modulus, GPa | 75 | |
| 72 |
| Shear Strength, MPa | 420 to 630 | |
| 1030 to 1330 |
| Tensile Strength: Ultimate (UTS), MPa | 620 to 1020 | |
| 1720 to 2220 |
| Tensile Strength: Yield (Proof), MPa | 280 to 670 | |
| 1430 to 1850 |
Thermal Properties
| Latent Heat of Fusion, J/g | 300 | |
| 250 |
| Maximum Temperature: Mechanical, °C | 920 | |
| 400 |
| Melting Completion (Liquidus), °C | 1430 | |
| 1450 |
| Melting Onset (Solidus), °C | 1370 | |
| 1410 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 470 |
| Thermal Conductivity, W/m-K | 15 | |
| 52 |
| Thermal Expansion, µm/m-K | 17 | |
| 12 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 1.9 | |
| 7.2 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 2.2 | |
| 8.3 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 26 | |
| 1.8 |
| Density, g/cm3 | 7.9 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 6.0 | |
| 1.4 |
| Embodied Energy, MJ/kg | 87 | |
| 19 |
| Embodied Water, L/kg | 170 | |
| 46 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 150 to 200 | |
| 200 to 260 |
| Stiffness to Weight: Axial, points | 14 | |
| 13 |
| Stiffness to Weight: Bending, points | 24 | |
| 24 |
| Strength to Weight: Axial, points | 22 to 36 | |
| 61 to 79 |
| Strength to Weight: Bending, points | 20 to 28 | |
| 41 to 48 |
| Thermal Diffusivity, mm2/s | 4.0 | |
| 14 |
| Thermal Shock Resistance, points | 13 to 22 | |
| 55 to 71 |
Alloy Composition
| Aluminum (Al), % | 0 to 0.35 | |
| 0 |
| Boron (B), % | 0.0010 to 0.010 | |
| 0 |
| Carbon (C), % | 0 to 0.080 | |
| 0.45 to 0.85 |
| Chromium (Cr), % | 13.5 to 16 | |
| 0 |
| Iron (Fe), % | 49.1 to 59.5 | |
| 97.4 to 99.1 |
| Manganese (Mn), % | 0 to 2.0 | |
| 0.3 to 1.3 |
| Molybdenum (Mo), % | 1.0 to 1.5 | |
| 0 |
| Nickel (Ni), % | 24 to 27 | |
| 0 |
| Phosphorus (P), % | 0 to 0.040 | |
| 0 to 0.040 |
| Silicon (Si), % | 0 to 1.0 | |
| 0.15 to 0.35 |
| Sulfur (S), % | 0 to 0.030 | |
| 0 to 0.050 |
| Titanium (Ti), % | 1.9 to 2.4 | |
| 0 |
| Vanadium (V), % | 0.1 to 0.5 | |
| 0 |