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AWS ERTi-5 vs. ASTM Grade HE Steel

AWS ERTi-5 belongs to the titanium alloys classification, while ASTM grade HE 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-5 and the bottom bar is ASTM grade HE steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
200
Elongation at Break, % 10
10
Fatigue Strength, MPa 470
160
Poisson's Ratio 0.32
0.27
Shear Modulus, GPa 40
79
Tensile Strength: Ultimate (UTS), MPa 900
670
Tensile Strength: Yield (Proof), MPa 830
310

Thermal Properties

Latent Heat of Fusion, J/g 410
310
Maximum Temperature: Mechanical, °C 340
1100
Melting Completion (Liquidus), °C 1610
1400
Melting Onset (Solidus), °C 1560
1360
Specific Heat Capacity, J/kg-K 560
490
Thermal Conductivity, W/m-K 7.1
14
Thermal Expansion, µm/m-K 9.6
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.0
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 36
19
Density, g/cm3 4.4
7.7
Embodied Carbon, kg CO2/kg material 38
3.5
Embodied Energy, MJ/kg 610
50
Embodied Water, L/kg 200
190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 87
56
Resilience: Unit (Modulus of Resilience), kJ/m3 3250
240
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 35
25
Strength to Weight: Axial, points 56
24
Strength to Weight: Bending, points 46
22
Thermal Diffusivity, mm2/s 2.9
3.6
Thermal Shock Resistance, points 63
14

Alloy Composition

Aluminum (Al), % 5.5 to 6.8
0
Carbon (C), % 0 to 0.050
0.2 to 0.5
Chromium (Cr), % 0
26 to 30
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.22
53.9 to 65.8
Manganese (Mn), % 0
0 to 2.0
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 0
8.0 to 11
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0.12 to 0.2
0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
0 to 2.0
Sulfur (S), % 0
0 to 0.040
Titanium (Ti), % 88.2 to 90.9
0
Vanadium (V), % 3.5 to 4.5
0