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ASTM B817 Type II vs. AWS E70C-Ni2

ASTM B817 type II belongs to the titanium alloys classification, while AWS E70C-Ni2 belongs to the iron alloys. There are 23 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is ASTM B817 type II and the bottom bar is AWS E70C-Ni2.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
190
Elongation at Break, % 3.0 to 13
27
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 40
72
Tensile Strength: Ultimate (UTS), MPa 900 to 960
560
Tensile Strength: Yield (Proof), MPa 780 to 900
450

Thermal Properties

Latent Heat of Fusion, J/g 400
250
Melting Completion (Liquidus), °C 1580
1450
Melting Onset (Solidus), °C 1530
1410
Specific Heat Capacity, J/kg-K 550
470
Thermal Expansion, µm/m-K 9.9
13

Otherwise Unclassified Properties

Base Metal Price, % relative 37
3.3
Density, g/cm3 4.6
7.8
Embodied Carbon, kg CO2/kg material 40
1.6
Embodied Energy, MJ/kg 650
22
Embodied Water, L/kg 220
51

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 26 to 120
140
Resilience: Unit (Modulus of Resilience), kJ/m3 2890 to 3890
540
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 34
24
Strength to Weight: Axial, points 55 to 58
20
Strength to Weight: Bending, points 45 to 47
19
Thermal Shock Resistance, points 62 to 66
17

Alloy Composition

Aluminum (Al), % 5.0 to 6.0
0
Carbon (C), % 0 to 0.1
0 to 0.080
Chlorine (Cl), % 0 to 0.2
0
Copper (Cu), % 0.35 to 1.0
0 to 0.35
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0.35 to 1.0
94.1 to 98.3
Manganese (Mn), % 0
0 to 1.3
Nickel (Ni), % 0
1.8 to 2.8
Nitrogen (N), % 0 to 0.040
0
Oxygen (O), % 0 to 0.3
0
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0 to 0.1
0 to 0.9
Sodium (Na), % 0 to 0.2
0
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 1.5 to 2.5
0
Titanium (Ti), % 82.1 to 87.8
0
Vanadium (V), % 5.0 to 6.0
0 to 0.030
Residuals, % 0
0 to 0.5