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ASTM A27 Cast Steel vs. C99700 Brass

ASTM A27 cast steel belongs to the iron alloys classification, while C99700 brass belongs to the copper alloys. There are 26 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is ASTM A27 cast steel and the bottom bar is C99700 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
120
Elongation at Break, % 25 to 27
25
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 73
46
Tensile Strength: Ultimate (UTS), MPa 460 to 550
380
Tensile Strength: Yield (Proof), MPa 230 to 310
170

Thermal Properties

Latent Heat of Fusion, J/g 250
200
Maximum Temperature: Mechanical, °C 400
160
Melting Completion (Liquidus), °C 1460
900
Melting Onset (Solidus), °C 1420
880
Specific Heat Capacity, J/kg-K 470
410
Thermal Expansion, µm/m-K 12
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0 to 7.1
3.0
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
25
Density, g/cm3 7.8
8.1
Embodied Carbon, kg CO2/kg material 1.4
3.3
Embodied Energy, MJ/kg 18
53
Embodied Water, L/kg 45 to 46
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 96 to 120
78
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 260
120
Stiffness to Weight: Axial, points 13
8.3
Stiffness to Weight: Bending, points 24
20
Strength to Weight: Axial, points 16 to 20
13
Strength to Weight: Bending, points 17 to 19
14
Thermal Shock Resistance, points 15 to 18
11