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C33200 Brass vs. ASTM A387 Grade 2 Steel

C33200 brass belongs to the copper alloys classification, while ASTM A387 grade 2 steel belongs to the iron 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 C33200 brass and the bottom bar is ASTM A387 grade 2 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
190
Elongation at Break, % 7.0 to 60
25
Poisson's Ratio 0.31
0.29
Shear Modulus, GPa 40
73
Shear Strength, MPa 240 to 300
300 to 350
Tensile Strength: Ultimate (UTS), MPa 320 to 520
470 to 550
Tensile Strength: Yield (Proof), MPa 110 to 450
260 to 350

Thermal Properties

Latent Heat of Fusion, J/g 170
250
Maximum Temperature: Mechanical, °C 130
420
Melting Completion (Liquidus), °C 930
1470
Melting Onset (Solidus), °C 900
1420
Specific Heat Capacity, J/kg-K 380
470
Thermal Conductivity, W/m-K 120
45
Thermal Expansion, µm/m-K 20
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 26
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 28
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 24
2.6
Density, g/cm3 8.2
7.9
Embodied Carbon, kg CO2/kg material 2.6
1.6
Embodied Energy, MJ/kg 44
20
Embodied Water, L/kg 320
50

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 35 to 150
98 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 60 to 960
180 to 320
Stiffness to Weight: Axial, points 7.1
13
Stiffness to Weight: Bending, points 19
24
Strength to Weight: Axial, points 11 to 17
16 to 20
Strength to Weight: Bending, points 13 to 17
17 to 19
Thermal Diffusivity, mm2/s 37
12
Thermal Shock Resistance, points 11 to 17
14 to 16

Alloy Composition

Carbon (C), % 0
0.050 to 0.21
Chromium (Cr), % 0
0.5 to 0.8
Copper (Cu), % 65 to 68
0
Iron (Fe), % 0 to 0.070
97.1 to 98.3
Lead (Pb), % 1.5 to 2.5
0
Manganese (Mn), % 0
0.55 to 0.8
Molybdenum (Mo), % 0
0.45 to 0.6
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0
0.15 to 0.4
Sulfur (S), % 0
0 to 0.025
Zinc (Zn), % 29 to 33.5
0
Residuals, % 0 to 0.4
0