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ASTM B817 Type II vs. C31400 Bronze

ASTM B817 type II belongs to the titanium alloys classification, while C31400 bronze belongs to the copper alloys. There are 24 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 C31400 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
110
Elongation at Break, % 3.0 to 13
6.8 to 29
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 40
42
Tensile Strength: Ultimate (UTS), MPa 900 to 960
270 to 420
Tensile Strength: Yield (Proof), MPa 780 to 900
78 to 310

Thermal Properties

Latent Heat of Fusion, J/g 400
200
Maximum Temperature: Mechanical, °C 350
180
Melting Completion (Liquidus), °C 1580
1040
Melting Onset (Solidus), °C 1530
1010
Specific Heat Capacity, J/kg-K 550
380
Thermal Expansion, µm/m-K 9.9
18

Otherwise Unclassified Properties

Base Metal Price, % relative 37
29
Density, g/cm3 4.6
8.8
Embodied Carbon, kg CO2/kg material 40
2.6
Embodied Energy, MJ/kg 650
42
Embodied Water, L/kg 220
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 26 to 120
26 to 59
Resilience: Unit (Modulus of Resilience), kJ/m3 2890 to 3890
28 to 420
Stiffness to Weight: Axial, points 13
7.1
Stiffness to Weight: Bending, points 34
18
Strength to Weight: Axial, points 55 to 58
8.7 to 13
Strength to Weight: Bending, points 45 to 47
11 to 14
Thermal Shock Resistance, points 62 to 66
9.6 to 15

Alloy Composition


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Aluminum (Al), % 5.0 to 6.0
0
Carbon (C), % 0 to 0.1
0
Chlorine (Cl), % 0 to 0.2
0
Copper (Cu), % 0.35 to 1.0
87.5 to 90.5
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0.35 to 1.0
0 to 0.1
Lead (Pb), % 0
1.3 to 2.5
Nickel (Ni), % 0
0 to 0.7
Nitrogen (N), % 0 to 0.040
0
Oxygen (O), % 0 to 0.3
0
Silicon (Si), % 0 to 0.1
0
Sodium (Na), % 0 to 0.2
0
Tin (Sn), % 1.5 to 2.5
0
Titanium (Ti), % 82.1 to 87.8
0
Vanadium (V), % 5.0 to 6.0
0
Zinc (Zn), % 0
5.8 to 11.2
Residuals, % 0 to 0.4
0 to 0.4