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ASTM A387 Grade 91 Class 2 vs. C33200 Brass

ASTM A387 grade 91 class 2 belongs to the iron alloys classification, while C33200 brass belongs to the copper alloys. There are 29 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 A387 grade 91 class 2 and the bottom bar is C33200 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
100
Elongation at Break, % 20
7.0 to 60
Poisson's Ratio 0.28
0.31
Shear Modulus, GPa 75
40
Shear Strength, MPa 420
240 to 300
Tensile Strength: Ultimate (UTS), MPa 670
320 to 520
Tensile Strength: Yield (Proof), MPa 470
110 to 450

Thermal Properties

Latent Heat of Fusion, J/g 270
170
Maximum Temperature: Mechanical, °C 600
130
Melting Completion (Liquidus), °C 1460
930
Melting Onset (Solidus), °C 1420
900
Specific Heat Capacity, J/kg-K 470
380
Thermal Conductivity, W/m-K 26
120
Thermal Expansion, µm/m-K 13
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.9
26
Electrical Conductivity: Equal Weight (Specific), % IACS 10
28

Otherwise Unclassified Properties

Base Metal Price, % relative 7.0
24
Density, g/cm3 7.8
8.2
Embodied Carbon, kg CO2/kg material 2.6
2.6
Embodied Energy, MJ/kg 37
44
Embodied Water, L/kg 88
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
35 to 150
Resilience: Unit (Modulus of Resilience), kJ/m3 580
60 to 960
Stiffness to Weight: Axial, points 14
7.1
Stiffness to Weight: Bending, points 25
19
Strength to Weight: Axial, points 24
11 to 17
Strength to Weight: Bending, points 22
13 to 17
Thermal Diffusivity, mm2/s 6.9
37
Thermal Shock Resistance, points 19
11 to 17

Alloy Composition

Aluminum (Al), % 0 to 0.020
0
Carbon (C), % 0.080 to 0.12
0
Chromium (Cr), % 8.0 to 9.5
0
Copper (Cu), % 0
65 to 68
Iron (Fe), % 87.3 to 90.3
0 to 0.070
Lead (Pb), % 0
1.5 to 2.5
Manganese (Mn), % 0.3 to 0.6
0
Molybdenum (Mo), % 0.85 to 1.1
0
Nickel (Ni), % 0 to 0.4
0
Niobium (Nb), % 0.060 to 0.1
0
Nitrogen (N), % 0.030 to 0.070
0
Phosphorus (P), % 0 to 0.020
0
Silicon (Si), % 0.2 to 0.5
0
Sulfur (S), % 0 to 0.010
0
Titanium (Ti), % 0 to 0.010
0
Vanadium (V), % 0.18 to 0.25
0
Zinc (Zn), % 0
29 to 33.5
Zirconium (Zr), % 0 to 0.010
0
Residuals, % 0
0 to 0.4