ASTM B817 Type II vs. ASTM A414 Steel
ASTM B817 type II belongs to the titanium alloys classification, while ASTM A414 steel belongs to the iron alloys. There are 25 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.
For each property being compared, the top bar is ASTM B817 type II and the bottom bar is ASTM A414 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 100 | |
| 190 |
| Elongation at Break, % | 3.0 to 13 | |
| 15 to 26 |
| Fatigue Strength, MPa | 390 to 530 | |
| 140 to 260 |
| Poisson's Ratio | 0.32 | |
| 0.29 |
| Shear Modulus, GPa | 40 | |
| 73 |
| Tensile Strength: Ultimate (UTS), MPa | 900 to 960 | |
| 360 to 590 |
| Tensile Strength: Yield (Proof), MPa | 780 to 900 | |
| 190 to 350 |
Thermal Properties
| Latent Heat of Fusion, J/g | 400 | |
| 250 |
| Maximum Temperature: Mechanical, °C | 350 | |
| 400 |
| Melting Completion (Liquidus), °C | 1580 | |
| 1460 |
| Melting Onset (Solidus), °C | 1530 | |
| 1420 |
| Specific Heat Capacity, J/kg-K | 550 | |
| 470 |
| Thermal Expansion, µm/m-K | 9.9 | |
| 13 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 37 | |
| 2.2 |
| Density, g/cm3 | 4.6 | |
| 7.8 to 7.9 |
| Embodied Carbon, kg CO2/kg material | 40 | |
| 1.5 to 1.6 |
| Embodied Energy, MJ/kg | 650 | |
| 20 to 22 |
| Embodied Water, L/kg | 220 | |
| 48 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 26 to 120 | |
| 69 to 130 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 2890 to 3890 | |
| 100 to 330 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 34 | |
| 24 |
| Strength to Weight: Axial, points | 55 to 58 | |
| 13 to 21 |
| Strength to Weight: Bending, points | 45 to 47 | |
| 14 to 20 |
| Thermal Shock Resistance, points | 62 to 66 | |
| 11 to 17 |