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ASTM B817 Type II vs. AWS ERNiMo-3

ASTM B817 type II belongs to the titanium alloys classification, while AWS ERNiMo-3 belongs to the nickel alloys. There are 19 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 ERNiMo-3.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
220
Poisson's Ratio 0.32
0.3
Shear Modulus, GPa 40
83
Tensile Strength: Ultimate (UTS), MPa 900 to 960
770

Thermal Properties

Latent Heat of Fusion, J/g 400
320
Melting Completion (Liquidus), °C 1580
1600
Melting Onset (Solidus), °C 1530
1540
Specific Heat Capacity, J/kg-K 550
400
Thermal Expansion, µm/m-K 9.9
11

Otherwise Unclassified Properties

Base Metal Price, % relative 37
70
Density, g/cm3 4.6
9.1
Embodied Carbon, kg CO2/kg material 40
15
Embodied Energy, MJ/kg 650
190
Embodied Water, L/kg 220
270

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 34
22
Strength to Weight: Axial, points 55 to 58
24
Strength to Weight: Bending, points 45 to 47
21
Thermal Shock Resistance, points 62 to 66
24

Alloy Composition

Aluminum (Al), % 5.0 to 6.0
0
Carbon (C), % 0 to 0.1
0 to 0.12
Chlorine (Cl), % 0 to 0.2
0
Chromium (Cr), % 0
4.0 to 6.0
Cobalt (Co), % 0
0 to 2.5
Copper (Cu), % 0.35 to 1.0
0 to 0.5
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0.35 to 1.0
4.0 to 7.0
Manganese (Mn), % 0
0 to 1.0
Molybdenum (Mo), % 0
23 to 26
Nickel (Ni), % 0
53.7 to 69
Nitrogen (N), % 0 to 0.040
0
Oxygen (O), % 0 to 0.3
0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.1
0 to 1.0
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
Tungsten (W), % 0
0 to 1.0
Vanadium (V), % 5.0 to 6.0
0 to 0.6
Residuals, % 0 to 0.4
0 to 0.5