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SAE-AISI D4 Steel vs. C69400 Brass

SAE-AISI D4 steel belongs to the iron alloys classification, while C69400 brass belongs to the copper alloys. There are 27 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 SAE-AISI D4 steel and the bottom bar is C69400 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
110
Elongation at Break, % 8.4 to 15
17
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 74
42
Shear Strength, MPa 460 to 1210
350
Tensile Strength: Ultimate (UTS), MPa 760 to 2060
570
Tensile Strength: Yield (Proof), MPa 470 to 1540
270

Thermal Properties

Latent Heat of Fusion, J/g 270
260
Melting Completion (Liquidus), °C 1430
920
Melting Onset (Solidus), °C 1380
820
Specific Heat Capacity, J/kg-K 480
410
Thermal Conductivity, W/m-K 31
26
Thermal Expansion, µm/m-K 12
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 4.2
6.2
Electrical Conductivity: Equal Weight (Specific), % IACS 5.0
6.7

Otherwise Unclassified Properties

Base Metal Price, % relative 8.0
27
Density, g/cm3 7.7
8.3
Embodied Carbon, kg CO2/kg material 3.3
2.7
Embodied Energy, MJ/kg 49
44
Embodied Water, L/kg 100
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100 to 160
80
Stiffness to Weight: Axial, points 14
7.4
Stiffness to Weight: Bending, points 25
19
Strength to Weight: Axial, points 27 to 75
19
Strength to Weight: Bending, points 24 to 47
18
Thermal Diffusivity, mm2/s 8.3
7.7
Thermal Shock Resistance, points 23 to 63
20

Alloy Composition

Carbon (C), % 2.1 to 2.4
0
Chromium (Cr), % 11 to 13
0
Copper (Cu), % 0 to 0.25
80 to 83
Iron (Fe), % 80.6 to 86.3
0 to 0.2
Lead (Pb), % 0
0 to 0.3
Manganese (Mn), % 0 to 0.6
0
Molybdenum (Mo), % 0.7 to 1.2
0
Nickel (Ni), % 0 to 0.3
0
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0 to 0.6
3.5 to 4.5
Sulfur (S), % 0 to 0.030
0
Vanadium (V), % 0 to 1.0
0
Zinc (Zn), % 0
11.5 to 16.5
Residuals, % 0
0 to 0.5