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AWS ERTi-12 vs. EN 1.7228 Steel

AWS ERTi-12 belongs to the titanium alloys classification, while EN 1.7228 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-12 and the bottom bar is EN 1.7228 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
190
Elongation at Break, % 12
12
Fatigue Strength, MPa 200
390
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 41
73
Tensile Strength: Ultimate (UTS), MPa 480
900
Tensile Strength: Yield (Proof), MPa 340
630

Thermal Properties

Latent Heat of Fusion, J/g 420
250
Maximum Temperature: Mechanical, °C 320
420
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
46
Thermal Expansion, µm/m-K 8.7
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.6
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 7.1
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 37
2.5
Density, g/cm3 4.5
7.8
Embodied Carbon, kg CO2/kg material 31
1.5
Embodied Energy, MJ/kg 510
20
Embodied Water, L/kg 110
51

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 52
100
Resilience: Unit (Modulus of Resilience), kJ/m3 550
1050
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
24
Strength to Weight: Axial, points 30
32
Strength to Weight: Bending, points 30
26
Thermal Diffusivity, mm2/s 8.7
12
Thermal Shock Resistance, points 37
26

Alloy Composition

Carbon (C), % 0 to 0.030
0.46 to 0.54
Chromium (Cr), % 0
0.9 to 1.2
Hydrogen (H), % 0 to 0.0080
0
Iron (Fe), % 0 to 0.15
96.7 to 98
Manganese (Mn), % 0
0.5 to 0.8
Molybdenum (Mo), % 0.2 to 0.4
0.15 to 0.3
Nickel (Ni), % 0.060 to 0.090
0
Nitrogen (N), % 0 to 0.015
0
Oxygen (O), % 0.080 to 0.16
0
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 0
0 to 0.4
Sulfur (S), % 0
0 to 0.035
Titanium (Ti), % 99.147 to 99.66
0