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Grade 1 Titanium vs. EN 1.7379 Steel

Grade 1 titanium belongs to the titanium alloys classification, while EN 1.7379 steel belongs to the iron alloys. There are 30 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 grade 1 titanium and the bottom bar is EN 1.7379 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 120
200
Elastic (Young's, Tensile) Modulus, GPa 110
190
Elongation at Break, % 28
21
Fatigue Strength, MPa 170
320
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 39
74
Tensile Strength: Ultimate (UTS), MPa 310
670
Tensile Strength: Yield (Proof), MPa 220
460

Thermal Properties

Latent Heat of Fusion, J/g 420
260
Maximum Temperature: Mechanical, °C 320
460
Melting Completion (Liquidus), °C 1660
1470
Melting Onset (Solidus), °C 1610
1420
Specific Heat Capacity, J/kg-K 540
470
Thermal Conductivity, W/m-K 20
39
Thermal Expansion, µm/m-K 8.8
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.7
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 7.3
8.8

Otherwise Unclassified Properties

Base Metal Price, % relative 37
3.8
Density, g/cm3 4.5
7.8
Embodied Carbon, kg CO2/kg material 31
1.8
Embodied Energy, MJ/kg 510
23
Embodied Water, L/kg 110
59

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 79
120
Resilience: Unit (Modulus of Resilience), kJ/m3 230
550
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
24
Strength to Weight: Axial, points 19
24
Strength to Weight: Bending, points 23
22
Thermal Diffusivity, mm2/s 8.2
11
Thermal Shock Resistance, points 24
19

Alloy Composition

Carbon (C), % 0 to 0.080
0.13 to 0.2
Chromium (Cr), % 0
2.0 to 2.5
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.2
94.5 to 96.5
Manganese (Mn), % 0
0.5 to 0.9
Molybdenum (Mo), % 0
0.9 to 1.2
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 to 0.6
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 99.095 to 100
0
Residuals, % 0 to 0.4
0