Grade 27 Titanium vs. ASTM Grade HN Steel
Grade 27 titanium belongs to the titanium alloys classification, while ASTM grade HN steel belongs to the iron alloys. There are 23 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.
For each property being compared, the top bar is grade 27 titanium and the bottom bar is ASTM grade HN steel.
Metric UnitsUS Customary Units
Mechanical Properties
Elastic (Young's, Tensile) Modulus, GPa | 110 | |
200 |
Elongation at Break, % | 27 | |
9.0 |
Poisson's Ratio | 0.32 | |
0.28 |
Shear Modulus, GPa | 41 | |
77 |
Tensile Strength: Ultimate (UTS), MPa | 270 | |
500 |
Thermal Properties
Latent Heat of Fusion, J/g | 420 | |
310 |
Maximum Temperature: Mechanical, °C | 320 | |
1080 |
Melting Completion (Liquidus), °C | 1660 | |
1400 |
Melting Onset (Solidus), °C | 1610 | |
1350 |
Specific Heat Capacity, J/kg-K | 540 | |
480 |
Thermal Conductivity, W/m-K | 21 | |
13 |
Thermal Expansion, µm/m-K | 8.7 | |
16 |
Otherwise Unclassified Properties
Base Metal Price, % relative | 37 | |
26 |
Density, g/cm3 | 4.5 | |
7.9 |
Embodied Carbon, kg CO2/kg material | 33 | |
4.6 |
Embodied Energy, MJ/kg | 530 | |
66 |
Embodied Water, L/kg | 320 | |
180 |
Common Calculations
Stiffness to Weight: Axial, points | 13 | |
14 |
Stiffness to Weight: Bending, points | 35 | |
25 |
Strength to Weight: Axial, points | 17 | |
17 |
Strength to Weight: Bending, points | 21 | |
18 |
Thermal Diffusivity, mm2/s | 8.8 | |
3.5 |
Thermal Shock Resistance, points | 21 | |
11 |
Alloy Composition
Carbon (C), % | 0 to 0.080 | |
0.2 to 0.5 |
Chromium (Cr), % | 0 | |
19 to 23 |
Hydrogen (H), % | 0 to 0.015 | |
0 |
Iron (Fe), % | 0 to 0.2 | |
44.9 to 57.8 |
Manganese (Mn), % | 0 | |
0 to 2.0 |
Molybdenum (Mo), % | 0 | |
0 to 0.5 |
Nickel (Ni), % | 0 | |
23 to 27 |
Nitrogen (N), % | 0 to 0.030 | |
0 |
Oxygen (O), % | 0 to 0.18 | |
0 |
Phosphorus (P), % | 0 | |
0 to 0.040 |
Ruthenium (Ru), % | 0.080 to 0.14 | |
0 |
Silicon (Si), % | 0 | |
0 to 2.0 |
Sulfur (S), % | 0 | |
0 to 0.040 |
Titanium (Ti), % | 99 to 99.92 | |
0 |
Residuals, % | 0 to 0.4 | |
0 |