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ASTM B817 Type II vs. Type 3 Magnetic Alloy

ASTM B817 type II belongs to the titanium alloys classification, while Type 3 magnetic alloy belongs to the nickel alloys. There are 25 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 B817 type II and the bottom bar is Type 3 magnetic alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
180
Elongation at Break, % 3.0 to 13
43
Fatigue Strength, MPa 390 to 530
170
Poisson's Ratio 0.32
0.31
Shear Modulus, GPa 40
70
Tensile Strength: Ultimate (UTS), MPa 900 to 960
550
Tensile Strength: Yield (Proof), MPa 780 to 900
210

Thermal Properties

Latent Heat of Fusion, J/g 400
290
Maximum Temperature: Mechanical, °C 350
910
Melting Completion (Liquidus), °C 1580
1370
Melting Onset (Solidus), °C 1530
1320
Specific Heat Capacity, J/kg-K 550
450
Thermal Expansion, µm/m-K 9.9
12

Otherwise Unclassified Properties

Base Metal Price, % relative 37
55
Density, g/cm3 4.6
8.7
Embodied Carbon, kg CO2/kg material 40
8.7
Embodied Energy, MJ/kg 650
120
Embodied Water, L/kg 220
220

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 26 to 120
190
Resilience: Unit (Modulus of Resilience), kJ/m3 2890 to 3890
120
Stiffness to Weight: Axial, points 13
12
Stiffness to Weight: Bending, points 34
22
Strength to Weight: Axial, points 55 to 58
18
Strength to Weight: Bending, points 45 to 47
17
Thermal Shock Resistance, points 62 to 66
18

Alloy Composition


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Aluminum (Al), % 5.0 to 6.0
0
Carbon (C), % 0 to 0.1
0 to 0.050
Chlorine (Cl), % 0 to 0.2
0
Chromium (Cr), % 0
2.0 to 3.0
Cobalt (Co), % 0
0 to 0.5
Copper (Cu), % 0.35 to 1.0
4.0 to 6.0
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0.35 to 1.0
9.9 to 19
Manganese (Mn), % 0
0 to 1.5
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 0
75 to 78
Nitrogen (N), % 0 to 0.040
0
Oxygen (O), % 0 to 0.3
0
Phosphorus (P), % 0
0 to 0.010
Silicon (Si), % 0 to 0.1
0 to 0.5
Sodium (Na), % 0 to 0.2
0
Sulfur (S), % 0
0 to 0.020
Tin (Sn), % 1.5 to 2.5
0
Titanium (Ti), % 82.1 to 87.8
0
Vanadium (V), % 5.0 to 6.0
0
Residuals, % 0 to 0.4
0