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SAE-AISI 4621 Steel vs. CC762S Brass

SAE-AISI 4621 steel belongs to the iron alloys classification, while CC762S brass belongs to the copper alloys. There are 29 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 4621 steel and the bottom bar is CC762S brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
210
Elastic (Young's, Tensile) Modulus, GPa 190
110
Elongation at Break, % 27
7.3
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 73
43
Tensile Strength: Ultimate (UTS), MPa 500
840
Tensile Strength: Yield (Proof), MPa 360
540

Thermal Properties

Latent Heat of Fusion, J/g 250
200
Maximum Temperature: Mechanical, °C 410
160
Melting Completion (Liquidus), °C 1460
920
Melting Onset (Solidus), °C 1420
870
Specific Heat Capacity, J/kg-K 470
420
Thermal Conductivity, W/m-K 46
51
Thermal Expansion, µm/m-K 13
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
28
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
32

Otherwise Unclassified Properties

Base Metal Price, % relative 3.3
24
Density, g/cm3 7.9
8.0
Embodied Carbon, kg CO2/kg material 1.6
3.1
Embodied Energy, MJ/kg 22
51
Embodied Water, L/kg 50
350

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
54
Resilience: Unit (Modulus of Resilience), kJ/m3 340
1290
Stiffness to Weight: Axial, points 13
7.8
Stiffness to Weight: Bending, points 24
20
Strength to Weight: Axial, points 18
29
Strength to Weight: Bending, points 18
25
Thermal Diffusivity, mm2/s 12
15
Thermal Shock Resistance, points 15
27

Alloy Composition

Aluminum (Al), % 0
3.0 to 7.0
Antimony (Sb), % 0
0 to 0.030
Carbon (C), % 0.18 to 0.23
0
Copper (Cu), % 0
57 to 67
Iron (Fe), % 96.1 to 97.1
1.5 to 4.0
Lead (Pb), % 0
0 to 0.2
Manganese (Mn), % 0.7 to 0.9
2.5 to 5.0
Molybdenum (Mo), % 0.2 to 0.3
0
Nickel (Ni), % 1.7 to 2.0
0 to 3.0
Phosphorus (P), % 0 to 0.035
0 to 0.030
Silicon (Si), % 0.15 to 0.35
0 to 0.1
Sulfur (S), % 0 to 0.040
0
Tin (Sn), % 0
0 to 0.2
Zinc (Zn), % 0
13.4 to 36