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C34000 Brass vs. ASTM A372 Grade J Steel

C34000 brass belongs to the copper alloys classification, while ASTM A372 grade J steel belongs to the iron alloys. There are 24 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is C34000 brass and the bottom bar is ASTM A372 grade J steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
190
Poisson's Ratio 0.31
0.29
Shear Modulus, GPa 40
73
Tensile Strength: Ultimate (UTS), MPa 340 to 650
650 to 1020

Thermal Properties

Latent Heat of Fusion, J/g 170
250
Maximum Temperature: Mechanical, °C 120
420
Melting Completion (Liquidus), °C 930
1460
Melting Onset (Solidus), °C 890
1420
Specific Heat Capacity, J/kg-K 380
470
Thermal Conductivity, W/m-K 120
44
Thermal Expansion, µm/m-K 21
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 26
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 29
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 24
2.4
Density, g/cm3 8.1
7.8
Embodied Carbon, kg CO2/kg material 2.6
1.5
Embodied Energy, MJ/kg 45
20
Embodied Water, L/kg 320
51

Common Calculations

Stiffness to Weight: Axial, points 7.1
13
Stiffness to Weight: Bending, points 19
24
Strength to Weight: Axial, points 11 to 22
23 to 36
Strength to Weight: Bending, points 13 to 21
21 to 29
Thermal Diffusivity, mm2/s 37
12
Thermal Shock Resistance, points 11 to 22
19 to 30

Alloy Composition

Carbon (C), % 0
0.35 to 0.5
Chromium (Cr), % 0
0.8 to 1.2
Copper (Cu), % 62 to 65
0
Iron (Fe), % 0 to 0.1
96.7 to 97.8
Lead (Pb), % 0.8 to 1.5
0
Manganese (Mn), % 0
0.75 to 1.1
Molybdenum (Mo), % 0
0.15 to 0.25
Phosphorus (P), % 0
0 to 0.015
Silicon (Si), % 0
0.15 to 0.35
Sulfur (S), % 0
0 to 0.010
Zinc (Zn), % 33 to 37.2
0
Residuals, % 0 to 0.4
0

Comparable Variants