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ASTM A217 Cast Steel vs. C87800 Brass

ASTM A217 cast steel belongs to the iron alloys classification, while C87800 brass belongs to the copper 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 ASTM A217 cast steel and the bottom bar is C87800 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
110
Elongation at Break, % 21 to 27
25
Poisson's Ratio 0.28 to 0.29
0.33
Shear Modulus, GPa 73 to 75
42
Tensile Strength: Ultimate (UTS), MPa 540 to 710
590
Tensile Strength: Yield (Proof), MPa 270 to 460
350

Thermal Properties

Latent Heat of Fusion, J/g 250 to 270
260
Maximum Temperature: Mechanical, °C 410 to 600
170
Melting Completion (Liquidus), °C 1450 to 1460
920
Melting Onset (Solidus), °C 1410 to 1420
820
Specific Heat Capacity, J/kg-K 470
410
Thermal Conductivity, W/m-K 26 to 50
28
Thermal Expansion, µm/m-K 13
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3 to 9.2
6.7
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4 to 11
7.3

Otherwise Unclassified Properties

Base Metal Price, % relative 2.4 to 7.0
27
Density, g/cm3 7.8
8.3
Embodied Carbon, kg CO2/kg material 1.5 to 2.1
2.7
Embodied Energy, MJ/kg 20 to 28
44
Embodied Water, L/kg 47 to 87
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 130
130
Resilience: Unit (Modulus of Resilience), kJ/m3 190 to 570
540
Stiffness to Weight: Axial, points 13 to 14
7.4
Stiffness to Weight: Bending, points 24 to 25
19
Strength to Weight: Axial, points 19 to 25
20
Strength to Weight: Bending, points 19 to 23
19
Thermal Diffusivity, mm2/s 6.9 to 14
8.3
Thermal Shock Resistance, points 16 to 20
21