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ASTM B817 Type I vs. C68400 Brass

ASTM B817 type I belongs to the titanium alloys classification, while C68400 brass belongs to the copper alloys. There are 28 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is ASTM B817 type I and the bottom bar is C68400 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
110
Elongation at Break, % 4.0 to 13
18
Poisson's Ratio 0.32
0.31
Shear Modulus, GPa 40
41
Tensile Strength: Ultimate (UTS), MPa 770 to 960
540
Tensile Strength: Yield (Proof), MPa 700 to 860
310

Thermal Properties

Latent Heat of Fusion, J/g 410
210
Maximum Temperature: Mechanical, °C 340
130
Melting Completion (Liquidus), °C 1600
840
Melting Onset (Solidus), °C 1550
820
Specific Heat Capacity, J/kg-K 560
400
Thermal Conductivity, W/m-K 7.1
66
Thermal Expansion, µm/m-K 9.6
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.0
87
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
99

Otherwise Unclassified Properties

Base Metal Price, % relative 36
23
Density, g/cm3 4.4
7.9
Embodied Carbon, kg CO2/kg material 38
2.7
Embodied Energy, MJ/kg 610
47
Embodied Water, L/kg 200
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 30 to 120
81
Resilience: Unit (Modulus of Resilience), kJ/m3 2310 to 3540
460
Stiffness to Weight: Axial, points 13
7.5
Stiffness to Weight: Bending, points 35
20
Strength to Weight: Axial, points 48 to 60
19
Strength to Weight: Bending, points 42 to 49
19
Thermal Diffusivity, mm2/s 2.9
21
Thermal Shock Resistance, points 54 to 68
18

Alloy Composition

Aluminum (Al), % 5.5 to 6.8
0 to 0.5
Boron (B), % 0
0.0010 to 0.030
Carbon (C), % 0 to 0.1
0
Chlorine (Cl), % 0 to 0.2
0
Copper (Cu), % 0
59 to 64
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.4
0 to 1.0
Lead (Pb), % 0
0 to 0.090
Manganese (Mn), % 0
0.2 to 1.5
Nickel (Ni), % 0
0 to 0.5
Nitrogen (N), % 0 to 0.040
0
Oxygen (O), % 0 to 0.3
0
Phosphorus (P), % 0
0.030 to 0.3
Silicon (Si), % 0 to 0.1
1.5 to 2.5
Sodium (Na), % 0 to 0.2
0
Tin (Sn), % 0
0 to 0.5
Titanium (Ti), % 87 to 91
0
Vanadium (V), % 3.5 to 4.5
0
Zinc (Zn), % 0
28.6 to 39.3
Residuals, % 0
0 to 0.5