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ASTM B817 Type II vs. C87500 Brass

ASTM B817 type II belongs to the titanium alloys classification, while C87500 brass belongs to the copper alloys. There are 24 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 C87500 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
110
Elongation at Break, % 3.0 to 13
18
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 40
42
Tensile Strength: Ultimate (UTS), MPa 900 to 960
460
Tensile Strength: Yield (Proof), MPa 780 to 900
190

Thermal Properties

Latent Heat of Fusion, J/g 400
260
Maximum Temperature: Mechanical, °C 350
170
Melting Completion (Liquidus), °C 1580
920
Melting Onset (Solidus), °C 1530
820
Specific Heat Capacity, J/kg-K 550
410
Thermal Expansion, µm/m-K 9.9
18

Otherwise Unclassified Properties

Base Metal Price, % relative 37
27
Density, g/cm3 4.6
8.3
Embodied Carbon, kg CO2/kg material 40
2.7
Embodied Energy, MJ/kg 650
44
Embodied Water, L/kg 220
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 26 to 120
67
Resilience: Unit (Modulus of Resilience), kJ/m3 2890 to 3890
160
Stiffness to Weight: Axial, points 13
7.4
Stiffness to Weight: Bending, points 34
19
Strength to Weight: Axial, points 55 to 58
16
Strength to Weight: Bending, points 45 to 47
16
Thermal Shock Resistance, points 62 to 66
17

Alloy Composition

Aluminum (Al), % 5.0 to 6.0
0 to 0.5
Carbon (C), % 0 to 0.1
0
Chlorine (Cl), % 0 to 0.2
0
Copper (Cu), % 0.35 to 1.0
79 to 85
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0.35 to 1.0
0
Lead (Pb), % 0
0 to 0.5
Nitrogen (N), % 0 to 0.040
0
Oxygen (O), % 0 to 0.3
0
Silicon (Si), % 0 to 0.1
3.0 to 5.0
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
12 to 16
Residuals, % 0
0 to 0.5