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ASTM A232 Spring Steel vs. CC764S Brass

ASTM A232 spring steel belongs to the iron alloys classification, while CC764S brass belongs to the copper alloys. There are 28 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 A232 spring steel and the bottom bar is CC764S brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 540
160
Elastic (Young's, Tensile) Modulus, GPa 190
110
Elongation at Break, % 14
15
Poisson's Ratio 0.29
0.31
Shear Modulus, GPa 73
41
Tensile Strength: Ultimate (UTS), MPa 1790
680
Tensile Strength: Yield (Proof), MPa 1610
290

Thermal Properties

Latent Heat of Fusion, J/g 250
180
Maximum Temperature: Mechanical, °C 420
130
Melting Completion (Liquidus), °C 1460
850
Melting Onset (Solidus), °C 1410
810
Specific Heat Capacity, J/kg-K 470
400
Thermal Conductivity, W/m-K 52
94
Thermal Expansion, µm/m-K 13
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
32
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
36

Otherwise Unclassified Properties

Base Metal Price, % relative 2.3
23
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 2.0
2.9
Embodied Energy, MJ/kg 28
49
Embodied Water, L/kg 51
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 250
80
Stiffness to Weight: Axial, points 13
7.6
Stiffness to Weight: Bending, points 24
20
Strength to Weight: Axial, points 64
24
Strength to Weight: Bending, points 42
22
Thermal Diffusivity, mm2/s 14
30
Thermal Shock Resistance, points 53
22

Alloy Composition

Aluminum (Al), % 0
1.0 to 3.0
Antimony (Sb), % 0
0 to 0.050
Carbon (C), % 0.48 to 0.53
0
Chromium (Cr), % 0.8 to 1.1
0
Copper (Cu), % 0
52 to 66
Iron (Fe), % 96.8 to 97.7
0.5 to 2.5
Lead (Pb), % 0
0 to 0.3
Manganese (Mn), % 0.7 to 0.9
0.3 to 4.0
Nickel (Ni), % 0
0 to 3.0
Phosphorus (P), % 0 to 0.020
0 to 0.030
Silicon (Si), % 0.15 to 0.35
0 to 0.1
Sulfur (S), % 0 to 0.035
0
Tin (Sn), % 0
0 to 0.3
Vanadium (V), % 0.15 to 0.3
0
Zinc (Zn), % 0
20.7 to 50.2