S45500 Stainless Steel vs. ASTM A229 Spring Steel
Both S45500 stainless steel and ASTM A229 spring steel are iron alloys. They have 76% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.
For each property being compared, the top bar is S45500 stainless steel and the bottom bar is ASTM A229 spring steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 280 to 500 | |
| 490 to 550 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 190 |
| Elongation at Break, % | 3.4 to 11 | |
| 14 |
| Fatigue Strength, MPa | 570 to 890 | |
| 710 to 790 |
| Poisson's Ratio | 0.28 | |
| 0.29 |
| Shear Modulus, GPa | 75 | |
| 72 |
| Shear Strength, MPa | 790 to 1090 | |
| 1020 to 1140 |
| Tensile Strength: Ultimate (UTS), MPa | 1370 to 1850 | |
| 1690 to 1890 |
| Tensile Strength: Yield (Proof), MPa | 1240 to 1700 | |
| 1100 to 1230 |
Thermal Properties
| Latent Heat of Fusion, J/g | 270 | |
| 250 |
| Maximum Temperature: Mechanical, °C | 760 | |
| 400 |
| Melting Completion (Liquidus), °C | 1440 | |
| 1450 |
| Melting Onset (Solidus), °C | 1400 | |
| 1410 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 470 |
| Thermal Expansion, µm/m-K | 11 | |
| 12 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 17 | |
| 1.8 |
| Density, g/cm3 | 7.9 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 3.8 | |
| 1.4 |
| Embodied Energy, MJ/kg | 57 | |
| 19 |
| Embodied Water, L/kg | 120 | |
| 46 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 45 to 190 | |
| 200 to 230 |
| Stiffness to Weight: Axial, points | 14 | |
| 13 |
| Stiffness to Weight: Bending, points | 24 | |
| 24 |
| Strength to Weight: Axial, points | 48 to 65 | |
| 60 to 67 |
| Strength to Weight: Bending, points | 35 to 42 | |
| 40 to 43 |
| Thermal Shock Resistance, points | 48 to 64 | |
| 54 to 60 |
Alloy Composition
| Carbon (C), % | 0 to 0.050 | |
| 0.55 to 0.85 |
| Chromium (Cr), % | 11 to 12.5 | |
| 0 |
| Copper (Cu), % | 1.5 to 2.5 | |
| 0 |
| Iron (Fe), % | 71.5 to 79.2 | |
| 97.5 to 99 |
| Manganese (Mn), % | 0 to 0.5 | |
| 0.3 to 1.2 |
| Molybdenum (Mo), % | 0 to 0.5 | |
| 0 |
| Nickel (Ni), % | 7.5 to 9.5 | |
| 0 |
| Niobium (Nb), % | 0 to 0.5 | |
| 0 |
| Phosphorus (P), % | 0 to 0.040 | |
| 0 to 0.040 |
| Silicon (Si), % | 0 to 0.5 | |
| 0.15 to 0.35 |
| Sulfur (S), % | 0 to 0.030 | |
| 0 to 0.050 |
| Tantalum (Ta), % | 0 to 0.5 | |
| 0 |
| Titanium (Ti), % | 0.8 to 1.4 | |
| 0 |