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ASTM A285 Carbon Steel vs. C68400 Brass

ASTM A285 carbon steel belongs to the iron alloys classification, while C68400 brass belongs to the copper alloys. There are 30 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is ASTM A285 carbon steel and the bottom bar is C68400 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 110 to 130
150
Elastic (Young's, Tensile) Modulus, GPa 190
110
Elongation at Break, % 30 to 34
18
Poisson's Ratio 0.29
0.31
Shear Modulus, GPa 73
41
Shear Strength, MPa 250 to 290
330
Tensile Strength: Ultimate (UTS), MPa 380 to 450
540
Tensile Strength: Yield (Proof), MPa 190 to 230
310

Thermal Properties

Latent Heat of Fusion, J/g 250
210
Maximum Temperature: Mechanical, °C 400
130
Melting Completion (Liquidus), °C 1470
840
Melting Onset (Solidus), °C 1420 to 1430
820
Specific Heat Capacity, J/kg-K 470
400
Thermal Conductivity, W/m-K 53
66
Thermal Expansion, µm/m-K 12
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0
87
Electrical Conductivity: Equal Weight (Specific), % IACS 8.0
99

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
23
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 1.4
2.7
Embodied Energy, MJ/kg 18
47
Embodied Water, L/kg 46
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
81
Resilience: Unit (Modulus of Resilience), kJ/m3 94 to 150
460
Stiffness to Weight: Axial, points 13
7.5
Stiffness to Weight: Bending, points 24
20
Strength to Weight: Axial, points 13 to 16
19
Strength to Weight: Bending, points 15 to 17
19
Thermal Diffusivity, mm2/s 14
21
Thermal Shock Resistance, points 12 to 14
18