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AWS ERTi-7 vs. ASTM A182 Grade F5a

AWS ERTi-7 belongs to the titanium alloys classification, while ASTM A182 grade F5a belongs to the iron alloys. There are 28 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is AWS ERTi-7 and the bottom bar is ASTM A182 grade F5a.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
190
Elongation at Break, % 20
25
Fatigue Strength, MPa 190
380
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 40
74
Tensile Strength: Ultimate (UTS), MPa 340
710
Tensile Strength: Yield (Proof), MPa 280
520

Thermal Properties

Latent Heat of Fusion, J/g 420
260
Maximum Temperature: Mechanical, °C 320
510
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
8.2
Electrical Conductivity: Equal Weight (Specific), % IACS 7.3
9.4

Otherwise Unclassified Properties

Density, g/cm3 4.5
7.8
Embodied Carbon, kg CO2/kg material 47
1.8
Embodied Energy, MJ/kg 800
24
Embodied Water, L/kg 470
69

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 64
160
Resilience: Unit (Modulus of Resilience), kJ/m3 360
700
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
25
Strength to Weight: Axial, points 21
25
Strength to Weight: Bending, points 24
23
Thermal Diffusivity, mm2/s 8.8
11
Thermal Shock Resistance, points 26
20

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.25
Chromium (Cr), % 0
4.0 to 6.0
Hydrogen (H), % 0 to 0.0080
0
Iron (Fe), % 0 to 0.12
91.4 to 95.6
Manganese (Mn), % 0
0 to 0.6
Molybdenum (Mo), % 0
0.44 to 0.65
Nickel (Ni), % 0
0 to 0.5
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 0.040
Silicon (Si), % 0
0 to 0.5
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 99.417 to 99.8
0