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AWS E3155 vs. Grade 4 Titanium

AWS E3155 belongs to the iron alloys classification, while grade 4 titanium belongs to the titanium alloys. There are 22 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is AWS E3155 and the bottom bar is grade 4 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
110
Elongation at Break, % 23
17
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 81
41
Tensile Strength: Ultimate (UTS), MPa 770
640

Thermal Properties

Latent Heat of Fusion, J/g 310
420
Melting Completion (Liquidus), °C 1460
1660
Melting Onset (Solidus), °C 1410
1610
Specific Heat Capacity, J/kg-K 450
540
Thermal Conductivity, W/m-K 13
19
Thermal Expansion, µm/m-K 13
9.4

Otherwise Unclassified Properties

Base Metal Price, % relative 70
37
Density, g/cm3 8.4
4.5
Embodied Carbon, kg CO2/kg material 7.7
31
Embodied Energy, MJ/kg 110
500
Embodied Water, L/kg 300
110

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
35
Strength to Weight: Axial, points 26
40
Strength to Weight: Bending, points 22
37
Thermal Diffusivity, mm2/s 3.3
7.6
Thermal Shock Resistance, points 20
46

Alloy Composition

Carbon (C), % 0 to 0.1
0 to 0.080
Chromium (Cr), % 20 to 22.5
0
Cobalt (Co), % 18.5 to 21
0
Copper (Cu), % 0 to 0.75
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 23.3 to 36.3
0 to 0.5
Manganese (Mn), % 1.0 to 2.5
0
Molybdenum (Mo), % 2.5 to 3.5
0
Nickel (Ni), % 19 to 21
0
Niobium (Nb), % 0.75 to 1.3
0
Nitrogen (N), % 0
0 to 0.050
Oxygen (O), % 0
0 to 0.4
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
98.6 to 100
Tungsten (W), % 2.0 to 3.0
0
Residuals, % 0
0 to 0.4