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AWS ERTi-1 vs. EN 1.8870 Steel

AWS ERTi-1 belongs to the titanium alloys classification, while EN 1.8870 steel belongs to the iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is AWS ERTi-1 and the bottom bar is EN 1.8870 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
190
Elongation at Break, % 24
21
Fatigue Strength, MPa 120
310
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 41
73
Tensile Strength: Ultimate (UTS), MPa 240
610
Tensile Strength: Yield (Proof), MPa 170
450

Thermal Properties

Latent Heat of Fusion, J/g 420
250
Maximum Temperature: Mechanical, °C 320
410
Melting Completion (Liquidus), °C 1670
1460
Melting Onset (Solidus), °C 1620
1420
Specific Heat Capacity, J/kg-K 540
470
Thermal Conductivity, W/m-K 21
39
Thermal Expansion, µm/m-K 8.7
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.6
7.5
Electrical Conductivity: Equal Weight (Specific), % IACS 7.1
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 37
2.8
Density, g/cm3 4.5
7.9
Embodied Carbon, kg CO2/kg material 31
1.7
Embodied Energy, MJ/kg 510
22
Embodied Water, L/kg 110
50

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 52
120
Resilience: Unit (Modulus of Resilience), kJ/m3 140
530
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
24
Strength to Weight: Axial, points 15
22
Strength to Weight: Bending, points 19
20
Thermal Diffusivity, mm2/s 8.7
10
Thermal Shock Resistance, points 19
18

Alloy Composition

Boron (B), % 0
0 to 0.0050
Carbon (C), % 0 to 0.030
0 to 0.18
Chromium (Cr), % 0
0 to 0.5
Copper (Cu), % 0
0 to 0.3
Hydrogen (H), % 0 to 0.0050
0
Iron (Fe), % 0 to 0.080
95.1 to 100
Manganese (Mn), % 0
0 to 1.7
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 0
0 to 1.0
Niobium (Nb), % 0
0 to 0.050
Nitrogen (N), % 0 to 0.012
0 to 0.015
Oxygen (O), % 0.030 to 0.1
0
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0
0 to 0.5
Sulfur (S), % 0
0 to 0.010
Titanium (Ti), % 99.773 to 99.97
0 to 0.030
Vanadium (V), % 0
0 to 0.080
Zirconium (Zr), % 0
0 to 0.050