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Grade 2 Titanium vs. EN 1.6958 Steel

Grade 2 titanium belongs to the titanium alloys classification, while EN 1.6958 steel belongs to the iron alloys. There are 33 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is grade 2 titanium and the bottom bar is EN 1.6958 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
340
Elastic (Young's, Tensile) Modulus, GPa 110
190
Elongation at Break, % 23
16
Fatigue Strength, MPa 250
700
Impact Strength: V-Notched Charpy, J 160
63
Poisson's Ratio 0.32
0.29
Reduction in Area, % 37
56
Shear Modulus, GPa 38
73
Shear Strength, MPa 270
700
Tensile Strength: Ultimate (UTS), MPa 420
1140
Tensile Strength: Yield (Proof), MPa 360
1070

Thermal Properties

Latent Heat of Fusion, J/g 420
250
Maximum Temperature: Mechanical, °C 320
450
Melting Completion (Liquidus), °C 1660
1460
Melting Onset (Solidus), °C 1610
1420
Specific Heat Capacity, J/kg-K 540
470
Thermal Conductivity, W/m-K 22
47
Thermal Expansion, µm/m-K 9.0
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.6
7.9
Electrical Conductivity: Equal Weight (Specific), % IACS 7.2
9.1

Otherwise Unclassified Properties

Base Metal Price, % relative 37
5.0
Density, g/cm3 4.5
7.9
Embodied Carbon, kg CO2/kg material 31
2.0
Embodied Energy, MJ/kg 510
27
Embodied Water, L/kg 110
60

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 92
180
Resilience: Unit (Modulus of Resilience), kJ/m3 600
3050
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
24
Strength to Weight: Axial, points 26
40
Strength to Weight: Bending, points 28
31
Thermal Diffusivity, mm2/s 8.9
13
Thermal Shock Resistance, points 32
39

Alloy Composition

Aluminum (Al), % 0
0.0050 to 0.050
Carbon (C), % 0 to 0.080
0.25 to 0.3
Chromium (Cr), % 0
1.2 to 1.7
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.3
92.6 to 94.5
Manganese (Mn), % 0
0.2 to 0.5
Molybdenum (Mo), % 0
0.35 to 0.55
Nickel (Ni), % 0
3.3 to 3.8
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.25
0
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 0
0.15 to 0.3
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 98.9 to 100
0
Vanadium (V), % 0
0 to 0.12
Residuals, % 0 to 0.4
0