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C37100 Brass vs. ASTM A203 Steel

C37100 brass belongs to the copper alloys classification, while ASTM A203 steel belongs to the iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is C37100 brass and the bottom bar is ASTM A203 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
190
Elongation at Break, % 8.0 to 40
22 to 26
Poisson's Ratio 0.31
0.29
Shear Modulus, GPa 40
73
Shear Strength, MPa 260 to 300
330 to 370
Tensile Strength: Ultimate (UTS), MPa 370 to 520
520 to 590
Tensile Strength: Yield (Proof), MPa 150 to 390
290 to 390

Thermal Properties

Latent Heat of Fusion, J/g 170
250
Maximum Temperature: Mechanical, °C 120
410
Melting Completion (Liquidus), °C 900
1460
Melting Onset (Solidus), °C 890
1420
Specific Heat Capacity, J/kg-K 380
470
Thermal Conductivity, W/m-K 120
52
Thermal Expansion, µm/m-K 21
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
7.4 to 7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 30
8.5 to 8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 23
3.2 to 4.0
Density, g/cm3 8.0
7.9
Embodied Carbon, kg CO2/kg material 2.7
1.6 to 1.7
Embodied Energy, MJ/kg 45
21 to 23
Embodied Water, L/kg 320
50 to 52

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 38 to 120
110 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 110 to 750
230 to 410
Stiffness to Weight: Axial, points 7.2
13
Stiffness to Weight: Bending, points 20
24
Strength to Weight: Axial, points 13 to 18
18 to 21
Strength to Weight: Bending, points 14 to 18
18 to 20
Thermal Diffusivity, mm2/s 39
14
Thermal Shock Resistance, points 12 to 17
15 to 17