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ASTM A204 Steel vs. C34500 Brass

ASTM A204 steel belongs to the iron alloys classification, while C34500 brass belongs to the copper alloys. There are 29 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is ASTM A204 steel and the bottom bar is C34500 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
100
Elongation at Break, % 18 to 22
12 to 28
Poisson's Ratio 0.29
0.31
Shear Modulus, GPa 73
40
Shear Strength, MPa 330 to 360
220 to 260
Tensile Strength: Ultimate (UTS), MPa 520 to 590
340 to 430
Tensile Strength: Yield (Proof), MPa 290 to 330
120 to 180

Thermal Properties

Latent Heat of Fusion, J/g 250
170
Maximum Temperature: Mechanical, °C 410
120
Melting Completion (Liquidus), °C 1470
910
Melting Onset (Solidus), °C 1420 to 1430
890
Specific Heat Capacity, J/kg-K 470
380
Thermal Conductivity, W/m-K 52
120
Thermal Expansion, µm/m-K 13
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
26
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
29

Otherwise Unclassified Properties

Base Metal Price, % relative 2.4
24
Density, g/cm3 7.9
8.2
Embodied Carbon, kg CO2/kg material 1.5
2.6
Embodied Energy, MJ/kg 20
45
Embodied Water, L/kg 47
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 90 to 95
42 to 75
Resilience: Unit (Modulus of Resilience), kJ/m3 220 to 290
69 to 160
Stiffness to Weight: Axial, points 13
7.1
Stiffness to Weight: Bending, points 24
19
Strength to Weight: Axial, points 18 to 21
12 to 15
Strength to Weight: Bending, points 18 to 20
13 to 16
Thermal Diffusivity, mm2/s 14
37
Thermal Shock Resistance, points 15 to 17
11 to 14