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C68400 Brass vs. ASTM Grade HD Steel

C68400 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 (5, in this case) are not shown.

For each property being compared, the top bar is C68400 brass and the bottom bar is ASTM grade HD steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
200
Elongation at Break, % 18
9.1
Poisson's Ratio 0.31
0.27
Shear Modulus, GPa 41
80
Tensile Strength: Ultimate (UTS), MPa 540
590
Tensile Strength: Yield (Proof), MPa 310
270

Thermal Properties

Latent Heat of Fusion, J/g 210
310
Maximum Temperature: Mechanical, °C 130
1100
Melting Completion (Liquidus), °C 840
1410
Melting Onset (Solidus), °C 820
1370
Specific Heat Capacity, J/kg-K 400
490
Thermal Conductivity, W/m-K 66
16
Thermal Expansion, µm/m-K 20
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 87
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 99
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 23
17
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 2.7
3.1
Embodied Energy, MJ/kg 47
45
Embodied Water, L/kg 320
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 81
44
Resilience: Unit (Modulus of Resilience), kJ/m3 460
180
Stiffness to Weight: Axial, points 7.5
15
Stiffness to Weight: Bending, points 20
26
Strength to Weight: Axial, points 19
21
Strength to Weight: Bending, points 19
20
Thermal Diffusivity, mm2/s 21
4.3
Thermal Shock Resistance, points 18
19

Alloy Composition


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Aluminum (Al), % 0 to 0.5
0
Boron (B), % 0.0010 to 0.030
0
Carbon (C), % 0
0 to 0.5
Chromium (Cr), % 0
26 to 30
Copper (Cu), % 59 to 64
0
Iron (Fe), % 0 to 1.0
58.4 to 70
Lead (Pb), % 0 to 0.090
0
Manganese (Mn), % 0.2 to 1.5
0 to 1.5
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 0 to 0.5
4.0 to 7.0
Phosphorus (P), % 0.030 to 0.3
0 to 0.040
Silicon (Si), % 1.5 to 2.5
0 to 2.0
Sulfur (S), % 0
0 to 0.040
Tin (Sn), % 0 to 0.5
0
Zinc (Zn), % 28.6 to 39.3
0
Residuals, % 0 to 0.5
0