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AWS E3155 vs. AWS ERTi-2

AWS E3155 belongs to the iron alloys classification, while AWS ERTi-2 belongs to the titanium alloys. There are 22 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is AWS E3155 and the bottom bar is AWS ERTi-2.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
110
Elongation at Break, % 23
20
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 81
40
Tensile Strength: Ultimate (UTS), MPa 770
340

Thermal Properties

Latent Heat of Fusion, J/g 310
420
Melting Completion (Liquidus), °C 1460
1670
Melting Onset (Solidus), °C 1410
1620
Specific Heat Capacity, J/kg-K 450
540
Thermal Conductivity, W/m-K 13
21
Thermal Expansion, µm/m-K 13
8.7

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
510
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
21
Strength to Weight: Bending, points 22
24
Thermal Diffusivity, mm2/s 3.3
8.7
Thermal Shock Resistance, points 20
27

Alloy Composition

Carbon (C), % 0 to 0.1
0 to 0.030
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 0.0080
Iron (Fe), % 23.3 to 36.3
0 to 0.12
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 0.015
Oxygen (O), % 0
0.080 to 0.16
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
99.667 to 99.92
Tungsten (W), % 2.0 to 3.0
0