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AWS ERTi-7 vs. AWS E219

AWS ERTi-7 belongs to the titanium alloys classification, while AWS E219 belongs to the iron alloys. There are 21 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is AWS ERTi-7 and the bottom bar is AWS E219.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
200
Elongation at Break, % 20
17
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 40
78
Tensile Strength: Ultimate (UTS), MPa 340
690

Thermal Properties

Latent Heat of Fusion, J/g 420
290
Melting Completion (Liquidus), °C 1670
1400
Melting Onset (Solidus), °C 1620
1360
Specific Heat Capacity, J/kg-K 540
480
Thermal Conductivity, W/m-K 21
14
Thermal Expansion, µm/m-K 8.7
15

Otherwise Unclassified Properties

Density, g/cm3 4.5
7.7
Embodied Carbon, kg CO2/kg material 47
3.1
Embodied Energy, MJ/kg 800
44
Embodied Water, L/kg 470
160

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
25
Strength to Weight: Axial, points 21
25
Strength to Weight: Bending, points 24
23
Thermal Diffusivity, mm2/s 8.8
3.8
Thermal Shock Resistance, points 26
17

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.060
Chromium (Cr), % 0
19 to 21.5
Copper (Cu), % 0
0 to 0.75
Hydrogen (H), % 0 to 0.0080
0
Iron (Fe), % 0 to 0.12
58.6 to 67.4
Manganese (Mn), % 0
8.0 to 10
Molybdenum (Mo), % 0
0 to 0.75
Nickel (Ni), % 0
5.5 to 7.0
Nitrogen (N), % 0 to 0.015
0.1 to 0.3
Oxygen (O), % 0.080 to 0.16
0
Palladium (Pd), % 0.12 to 0.25
0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 99.417 to 99.8
0