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C34500 Brass vs. ASTM Grade HD Steel

C34500 brass belongs to the copper alloys classification, while ASTM grade HD steel belongs to the iron 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 C34500 brass and the bottom bar is ASTM grade HD steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
200
Elongation at Break, % 12 to 28
9.1
Poisson's Ratio 0.31
0.27
Shear Modulus, GPa 40
80
Tensile Strength: Ultimate (UTS), MPa 340 to 430
590
Tensile Strength: Yield (Proof), MPa 120 to 180
270

Thermal Properties

Latent Heat of Fusion, J/g 170
310
Maximum Temperature: Mechanical, °C 120
1100
Melting Completion (Liquidus), °C 910
1410
Melting Onset (Solidus), °C 890
1370
Specific Heat Capacity, J/kg-K 380
490
Thermal Conductivity, W/m-K 120
16
Thermal Expansion, µm/m-K 21
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 26
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 29
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 24
17
Density, g/cm3 8.2
7.7
Embodied Carbon, kg CO2/kg material 2.6
3.1
Embodied Energy, MJ/kg 45
45
Embodied Water, L/kg 320
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 42 to 75
44
Resilience: Unit (Modulus of Resilience), kJ/m3 69 to 160
180
Stiffness to Weight: Axial, points 7.1
15
Stiffness to Weight: Bending, points 19
26
Strength to Weight: Axial, points 12 to 15
21
Strength to Weight: Bending, points 13 to 16
20
Thermal Diffusivity, mm2/s 37
4.3
Thermal Shock Resistance, points 11 to 14
19

Alloy Composition

Carbon (C), % 0
0 to 0.5
Chromium (Cr), % 0
26 to 30
Copper (Cu), % 62 to 65
0
Iron (Fe), % 0 to 0.15
58.4 to 70
Lead (Pb), % 1.5 to 2.5
0
Manganese (Mn), % 0
0 to 1.5
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 0
4.0 to 7.0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
0 to 2.0
Sulfur (S), % 0
0 to 0.040
Zinc (Zn), % 32 to 36.5
0
Residuals, % 0 to 0.4
0