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ASTM B817 Type II vs. AWS ERNiCrMo-4

ASTM B817 type II belongs to the titanium alloys classification, while AWS ERNiCrMo-4 belongs to the nickel alloys. There are 20 material properties with values for both materials. Properties with values for just one material (6, 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 ERNiCrMo-4.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
220
Elongation at Break, % 3.0 to 13
28
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 40
84
Tensile Strength: Ultimate (UTS), MPa 900 to 960
790

Thermal Properties

Latent Heat of Fusion, J/g 400
310
Melting Completion (Liquidus), °C 1580
1590
Melting Onset (Solidus), °C 1530
1530
Specific Heat Capacity, J/kg-K 550
410
Thermal Expansion, µm/m-K 9.9
12

Otherwise Unclassified Properties

Base Metal Price, % relative 37
70
Density, g/cm3 4.6
9.0
Embodied Carbon, kg CO2/kg material 40
13
Embodied Energy, MJ/kg 650
170
Embodied Water, L/kg 220
280

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
22

Alloy Composition

Aluminum (Al), % 5.0 to 6.0
0
Carbon (C), % 0 to 0.1
0 to 0.020
Chlorine (Cl), % 0 to 0.2
0
Chromium (Cr), % 0
14.5 to 16.5
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
15 to 17
Nickel (Ni), % 0
50 to 63.5
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 0.080
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
3.0 to 4.5
Vanadium (V), % 5.0 to 6.0
0 to 0.35
Residuals, % 0 to 0.4
0 to 0.5