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ASTM A285 Carbon Steel vs. C85700 Brass

ASTM A285 carbon steel belongs to the iron alloys classification, while C85700 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 A285 carbon steel and the bottom bar is C85700 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
100
Elongation at Break, % 30 to 34
17
Poisson's Ratio 0.29
0.31
Shear Modulus, GPa 73
40
Tensile Strength: Ultimate (UTS), MPa 380 to 450
310
Tensile Strength: Yield (Proof), MPa 190 to 230
110

Thermal Properties

Latent Heat of Fusion, J/g 250
170
Maximum Temperature: Mechanical, °C 400
120
Melting Completion (Liquidus), °C 1470
940
Melting Onset (Solidus), °C 1420 to 1430
910
Specific Heat Capacity, J/kg-K 470
380
Thermal Conductivity, W/m-K 53
84
Thermal Expansion, µm/m-K 12
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0
22
Electrical Conductivity: Equal Weight (Specific), % IACS 8.0
25

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
24
Density, g/cm3 7.9
8.0
Embodied Carbon, kg CO2/kg material 1.4
2.8
Embodied Energy, MJ/kg 18
47
Embodied Water, L/kg 46
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
41
Resilience: Unit (Modulus of Resilience), kJ/m3 94 to 150
59
Stiffness to Weight: Axial, points 13
7.2
Stiffness to Weight: Bending, points 24
20
Strength to Weight: Axial, points 13 to 16
11
Strength to Weight: Bending, points 15 to 17
13
Thermal Diffusivity, mm2/s 14
27
Thermal Shock Resistance, points 12 to 14
10