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C38000 Brass vs. ASTM A302 Alloy Steel

C38000 brass belongs to the copper alloys classification, while ASTM A302 alloy steel belongs to the iron alloys. There are 27 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 C38000 brass and the bottom bar is ASTM A302 alloy steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
190
Elongation at Break, % 17
20 to 23
Poisson's Ratio 0.31
0.29
Shear Modulus, GPa 39
73
Shear Strength, MPa 230
370 to 390
Tensile Strength: Ultimate (UTS), MPa 380
590 to 620
Tensile Strength: Yield (Proof), MPa 120
350 to 390

Thermal Properties

Latent Heat of Fusion, J/g 170
250
Maximum Temperature: Mechanical, °C 110
410
Melting Completion (Liquidus), °C 800
1460
Melting Onset (Solidus), °C 760
1420
Specific Heat Capacity, J/kg-K 380
470
Thermal Conductivity, W/m-K 110
39 to 51
Thermal Expansion, µm/m-K 21
13

Otherwise Unclassified Properties

Base Metal Price, % relative 22
2.4 to 3.0
Density, g/cm3 8.0
7.8 to 7.9
Embodied Carbon, kg CO2/kg material 2.7
1.5 to 1.6
Embodied Energy, MJ/kg 46
20 to 21
Embodied Water, L/kg 330
48 to 50

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 50
110 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 74
330 to 410
Stiffness to Weight: Axial, points 7.1
13
Stiffness to Weight: Bending, points 19
24
Strength to Weight: Axial, points 13
21 to 22
Strength to Weight: Bending, points 14
20 to 21
Thermal Diffusivity, mm2/s 37
10 to 14
Thermal Shock Resistance, points 13
17 to 18