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CC751S Brass vs. ASTM A231 Spring Steel

CC751S brass belongs to the copper alloys classification, while ASTM A231 spring steel belongs to the iron 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 CC751S brass and the bottom bar is ASTM A231 spring steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 130
540
Elastic (Young's, Tensile) Modulus, GPa 110
190
Elongation at Break, % 5.6
14
Poisson's Ratio 0.31
0.29
Shear Modulus, GPa 40
73
Tensile Strength: Ultimate (UTS), MPa 450
1790
Tensile Strength: Yield (Proof), MPa 320
1570

Thermal Properties

Latent Heat of Fusion, J/g 190
250
Maximum Temperature: Mechanical, °C 130
420
Melting Completion (Liquidus), °C 850
1460
Melting Onset (Solidus), °C 810
1410
Specific Heat Capacity, J/kg-K 390
470
Thermal Conductivity, W/m-K 110
52
Thermal Expansion, µm/m-K 20
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 28
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 24
2.3
Density, g/cm3 8.1
7.8
Embodied Carbon, kg CO2/kg material 2.8
2.0
Embodied Energy, MJ/kg 46
28
Embodied Water, L/kg 330
51

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 23
230
Stiffness to Weight: Axial, points 7.2
13
Stiffness to Weight: Bending, points 19
24
Strength to Weight: Axial, points 15
64
Strength to Weight: Bending, points 16
42
Thermal Diffusivity, mm2/s 35
14
Thermal Shock Resistance, points 15
53

Alloy Composition

Aluminum (Al), % 0 to 0.1
0
Antimony (Sb), % 0 to 0.5
0
Carbon (C), % 0
0.48 to 0.53
Chromium (Cr), % 0
0.8 to 1.1
Copper (Cu), % 62.7 to 66
0
Iron (Fe), % 0.25 to 0.5
96.7 to 97.7
Lead (Pb), % 0.8 to 2.2
0
Manganese (Mn), % 0 to 0.15
0.7 to 0.9
Nickel (Ni), % 0 to 0.8
0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0.65 to 1.1
0.15 to 0.35
Sulfur (S), % 0
0 to 0.040
Tin (Sn), % 0 to 0.8
0
Vanadium (V), % 0
0.15 to 0.3
Zinc (Zn), % 27.9 to 35.6
0