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AWS ERTi-7 vs. EN 1.0308 Steel

AWS ERTi-7 belongs to the titanium alloys classification, while EN 1.0308 steel belongs to the iron alloys. There are 28 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-7 and the bottom bar is EN 1.0308 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
190
Elongation at Break, % 20
7.8 to 28
Fatigue Strength, MPa 190
140 to 200
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 40
73
Tensile Strength: Ultimate (UTS), MPa 340
360 to 440
Tensile Strength: Yield (Proof), MPa 280
190 to 340

Thermal Properties

Latent Heat of Fusion, J/g 420
250
Maximum Temperature: Mechanical, °C 320
400
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
51
Thermal Expansion, µm/m-K 8.7
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.6
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 7.3
8.1

Otherwise Unclassified Properties

Density, g/cm3 4.5
7.9
Embodied Carbon, kg CO2/kg material 47
1.4
Embodied Energy, MJ/kg 800
18
Embodied Water, L/kg 470
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 64
32 to 95
Resilience: Unit (Modulus of Resilience), kJ/m3 360
93 to 300
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
24
Strength to Weight: Axial, points 21
13 to 16
Strength to Weight: Bending, points 24
14 to 16
Thermal Diffusivity, mm2/s 8.8
14
Thermal Shock Resistance, points 26
11 to 14

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.17
Hydrogen (H), % 0 to 0.0080
0
Iron (Fe), % 0 to 0.12
98.2 to 100
Manganese (Mn), % 0
0 to 1.2
Nitrogen (N), % 0 to 0.015
0
Oxygen (O), % 0.080 to 0.16
0
Palladium (Pd), % 0.12 to 0.25
0
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0
0 to 0.35
Sulfur (S), % 0
0 to 0.045
Titanium (Ti), % 99.417 to 99.8
0