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Grade 1 Titanium vs. EN 1.7715 Steel

Grade 1 titanium belongs to the titanium alloys classification, while EN 1.7715 steel belongs to the iron alloys. There are 31 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 grade 1 titanium and the bottom bar is EN 1.7715 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 120
160
Elastic (Young's, Tensile) Modulus, GPa 110
190
Elongation at Break, % 28
21
Fatigue Strength, MPa 170
240
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 39
73
Shear Strength, MPa 200
340
Tensile Strength: Ultimate (UTS), MPa 310
540
Tensile Strength: Yield (Proof), MPa 220
340

Thermal Properties

Latent Heat of Fusion, J/g 420
250
Maximum Temperature: Mechanical, °C 320
420
Melting Completion (Liquidus), °C 1660
1470
Melting Onset (Solidus), °C 1610
1430
Specific Heat Capacity, J/kg-K 540
470
Thermal Conductivity, W/m-K 20
40
Thermal Expansion, µm/m-K 8.8
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.7
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 7.3
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 37
2.9
Density, g/cm3 4.5
7.9
Embodied Carbon, kg CO2/kg material 31
2.2
Embodied Energy, MJ/kg 510
30
Embodied Water, L/kg 110
52

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 79
99
Resilience: Unit (Modulus of Resilience), kJ/m3 230
320
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
24
Strength to Weight: Axial, points 19
19
Strength to Weight: Bending, points 23
19
Thermal Diffusivity, mm2/s 8.2
11
Thermal Shock Resistance, points 24
16

Alloy Composition

Aluminum (Al), % 0
0 to 0.040
Carbon (C), % 0 to 0.080
0.1 to 0.15
Chromium (Cr), % 0
0.3 to 0.6
Copper (Cu), % 0
0 to 0.3
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.2
96.5 to 98.3
Manganese (Mn), % 0
0.4 to 0.7
Molybdenum (Mo), % 0
0.5 to 0.7
Nickel (Ni), % 0
0 to 0.3
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.18
0
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0
0.15 to 0.35
Sulfur (S), % 0
0 to 0.010
Titanium (Ti), % 99.095 to 100
0
Vanadium (V), % 0
0.22 to 0.28
Residuals, % 0 to 0.4
0