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AWS ERTi-7 vs. EN 1.6580 Steel

AWS ERTi-7 belongs to the titanium alloys classification, while EN 1.6580 steel belongs to the iron alloys. There are 28 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is AWS ERTi-7 and the bottom bar is EN 1.6580 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
190
Elongation at Break, % 20
11 to 19
Fatigue Strength, MPa 190
310 to 610
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 40
73
Tensile Strength: Ultimate (UTS), MPa 340
720 to 1170
Tensile Strength: Yield (Proof), MPa 280
460 to 990

Thermal Properties

Latent Heat of Fusion, J/g 420
250
Maximum Temperature: Mechanical, °C 320
450
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
40
Thermal Expansion, µm/m-K 8.7
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.6
7.8
Electrical Conductivity: Equal Weight (Specific), % IACS 7.3
8.9

Otherwise Unclassified Properties

Density, g/cm3 4.5
7.9
Embodied Carbon, kg CO2/kg material 47
1.8
Embodied Energy, MJ/kg 800
23
Embodied Water, L/kg 470
59

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 64
120 to 130
Resilience: Unit (Modulus of Resilience), kJ/m3 360
560 to 2590
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
24
Strength to Weight: Axial, points 21
26 to 41
Strength to Weight: Bending, points 24
23 to 31
Thermal Diffusivity, mm2/s 8.8
11
Thermal Shock Resistance, points 26
21 to 34

Alloy Composition

Carbon (C), % 0 to 0.030
0.26 to 0.34
Chromium (Cr), % 0
1.8 to 2.2
Hydrogen (H), % 0 to 0.0080
0
Iron (Fe), % 0 to 0.12
93.7 to 95.5
Manganese (Mn), % 0
0.3 to 0.6
Molybdenum (Mo), % 0
0.3 to 0.5
Nickel (Ni), % 0
1.8 to 2.2
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 0.035
Silicon (Si), % 0
0 to 0.4
Sulfur (S), % 0
0 to 0.035
Titanium (Ti), % 99.417 to 99.8
0