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ASTM A27 Cast Steel vs. C85400 Brass

ASTM A27 cast steel belongs to the iron alloys classification, while C85400 brass belongs to the copper alloys. There are 28 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 A27 cast steel and the bottom bar is C85400 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
100
Elongation at Break, % 25 to 27
23
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 73
40
Tensile Strength: Ultimate (UTS), MPa 460 to 550
220
Tensile Strength: Yield (Proof), MPa 230 to 310
85

Thermal Properties

Latent Heat of Fusion, J/g 250
180
Maximum Temperature: Mechanical, °C 400
130
Melting Completion (Liquidus), °C 1460
940
Melting Onset (Solidus), °C 1420
940
Specific Heat Capacity, J/kg-K 470
380
Thermal Conductivity, W/m-K 52
89
Thermal Expansion, µm/m-K 12
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0 to 7.1
20
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1
22

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
25
Density, g/cm3 7.8
8.3
Embodied Carbon, kg CO2/kg material 1.4
2.8
Embodied Energy, MJ/kg 18
46
Embodied Water, L/kg 45 to 46
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 96 to 120
40
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 260
35
Stiffness to Weight: Axial, points 13
7.0
Stiffness to Weight: Bending, points 24
19
Strength to Weight: Axial, points 16 to 20
7.5
Strength to Weight: Bending, points 17 to 19
9.9
Thermal Diffusivity, mm2/s 14
28
Thermal Shock Resistance, points 15 to 18
7.6