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ASTM A182 Grade F122 vs. AWS ERTi-7

ASTM A182 grade F122 belongs to the iron alloys classification, while AWS ERTi-7 belongs to the titanium 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 ASTM A182 grade F122 and the bottom bar is AWS ERTi-7.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
110
Elongation at Break, % 23
20
Fatigue Strength, MPa 320
190
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 76
40
Tensile Strength: Ultimate (UTS), MPa 710
340
Tensile Strength: Yield (Proof), MPa 450
280

Thermal Properties

Latent Heat of Fusion, J/g 270
420
Maximum Temperature: Mechanical, °C 600
320
Melting Completion (Liquidus), °C 1490
1670
Melting Onset (Solidus), °C 1440
1620
Specific Heat Capacity, J/kg-K 470
540
Thermal Conductivity, W/m-K 24
21
Thermal Expansion, µm/m-K 13
8.7

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 10
3.6
Electrical Conductivity: Equal Weight (Specific), % IACS 12
7.3

Otherwise Unclassified Properties

Density, g/cm3 8.0
4.5
Embodied Carbon, kg CO2/kg material 3.0
47
Embodied Energy, MJ/kg 44
800
Embodied Water, L/kg 100
470

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
64
Resilience: Unit (Modulus of Resilience), kJ/m3 520
360
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
35
Strength to Weight: Axial, points 25
21
Strength to Weight: Bending, points 22
24
Thermal Diffusivity, mm2/s 6.4
8.8
Thermal Shock Resistance, points 19
26

Alloy Composition

Aluminum (Al), % 0 to 0.020
0
Boron (B), % 0 to 0.0050
0
Carbon (C), % 0.070 to 0.14
0 to 0.030
Chromium (Cr), % 10 to 11.5
0
Copper (Cu), % 0.3 to 1.7
0
Hydrogen (H), % 0
0 to 0.0080
Iron (Fe), % 81.3 to 87.7
0 to 0.12
Manganese (Mn), % 0 to 0.7
0
Molybdenum (Mo), % 0.25 to 0.6
0
Nickel (Ni), % 0 to 0.5
0
Niobium (Nb), % 0.040 to 0.1
0
Nitrogen (N), % 0.040 to 0.1
0 to 0.015
Oxygen (O), % 0
0.080 to 0.16
Palladium (Pd), % 0
0.12 to 0.25
Phosphorus (P), % 0 to 0.020
0
Silicon (Si), % 0 to 0.5
0
Sulfur (S), % 0 to 0.010
0
Titanium (Ti), % 0 to 0.010
99.417 to 99.8
Tungsten (W), % 1.5 to 2.5
0
Vanadium (V), % 0.15 to 0.3
0
Zirconium (Zr), % 0 to 0.010
0