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ASTM B817 Type II vs. C27200 Brass

ASTM B817 type II belongs to the titanium alloys classification, while C27200 brass belongs to the copper alloys. There are 24 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is ASTM B817 type II and the bottom bar is C27200 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
110
Elongation at Break, % 3.0 to 13
10 to 50
Poisson's Ratio 0.32
0.31
Shear Modulus, GPa 40
40
Tensile Strength: Ultimate (UTS), MPa 900 to 960
370 to 590
Tensile Strength: Yield (Proof), MPa 780 to 900
150 to 410

Thermal Properties

Latent Heat of Fusion, J/g 400
170
Maximum Temperature: Mechanical, °C 350
130
Melting Completion (Liquidus), °C 1580
920
Melting Onset (Solidus), °C 1530
870
Specific Heat Capacity, J/kg-K 550
390
Thermal Expansion, µm/m-K 9.9
20

Otherwise Unclassified Properties

Base Metal Price, % relative 37
24
Density, g/cm3 4.6
8.1
Embodied Carbon, kg CO2/kg material 40
2.7
Embodied Energy, MJ/kg 650
45
Embodied Water, L/kg 220
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 26 to 120
30 to 270
Resilience: Unit (Modulus of Resilience), kJ/m3 2890 to 3890
110 to 810
Stiffness to Weight: Axial, points 13
7.2
Stiffness to Weight: Bending, points 34
19
Strength to Weight: Axial, points 55 to 58
13 to 20
Strength to Weight: Bending, points 45 to 47
14 to 19
Thermal Shock Resistance, points 62 to 66
12 to 20

Alloy Composition

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
62 to 65
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0.35 to 1.0
0 to 0.070
Lead (Pb), % 0
0 to 0.070
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
34.6 to 38
Residuals, % 0
0 to 0.3