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ASTM A203 Steel vs. C69300 Brass

ASTM A203 steel belongs to the iron alloys classification, while C69300 brass belongs to the copper 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 ASTM A203 steel and the bottom bar is C69300 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
110
Elongation at Break, % 22 to 26
8.5 to 15
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 73
41
Shear Strength, MPa 330 to 370
330 to 370
Tensile Strength: Ultimate (UTS), MPa 520 to 590
550 to 630
Tensile Strength: Yield (Proof), MPa 290 to 390
300 to 390

Thermal Properties

Latent Heat of Fusion, J/g 250
240
Maximum Temperature: Mechanical, °C 410
160
Melting Completion (Liquidus), °C 1460
880
Melting Onset (Solidus), °C 1420
860
Specific Heat Capacity, J/kg-K 470
400
Thermal Conductivity, W/m-K 52
38
Thermal Expansion, µm/m-K 13
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4 to 7.6
8.0
Electrical Conductivity: Equal Weight (Specific), % IACS 8.5 to 8.7
8.8

Otherwise Unclassified Properties

Base Metal Price, % relative 3.2 to 4.0
26
Density, g/cm3 7.9
8.2
Embodied Carbon, kg CO2/kg material 1.6 to 1.7
2.7
Embodied Energy, MJ/kg 21 to 23
45
Embodied Water, L/kg 50 to 52
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 120
47 to 70
Resilience: Unit (Modulus of Resilience), kJ/m3 230 to 410
400 to 700
Stiffness to Weight: Axial, points 13
7.4
Stiffness to Weight: Bending, points 24
19
Strength to Weight: Axial, points 18 to 21
19 to 21
Strength to Weight: Bending, points 18 to 20
18 to 20
Thermal Diffusivity, mm2/s 14
12
Thermal Shock Resistance, points 15 to 17
19 to 22