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ASTM A231 Spring Steel vs. C83300 Brass

ASTM A231 spring steel belongs to the iron alloys classification, while C83300 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 A231 spring steel and the bottom bar is C83300 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 540
35
Elastic (Young's, Tensile) Modulus, GPa 190
110
Elongation at Break, % 14
35
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 73
42
Tensile Strength: Ultimate (UTS), MPa 1790
220
Tensile Strength: Yield (Proof), MPa 1570
69

Thermal Properties

Latent Heat of Fusion, J/g 250
200
Maximum Temperature: Mechanical, °C 420
180
Melting Completion (Liquidus), °C 1460
1060
Melting Onset (Solidus), °C 1410
1030
Specific Heat Capacity, J/kg-K 470
380
Thermal Conductivity, W/m-K 52
160
Thermal Expansion, µm/m-K 13
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
32
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
33

Otherwise Unclassified Properties

Base Metal Price, % relative 2.3
30
Density, g/cm3 7.8
8.8
Embodied Carbon, kg CO2/kg material 2.0
2.7
Embodied Energy, MJ/kg 28
44
Embodied Water, L/kg 51
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 230
60
Stiffness to Weight: Axial, points 13
7.0
Stiffness to Weight: Bending, points 24
18
Strength to Weight: Axial, points 64
6.9
Strength to Weight: Bending, points 42
9.2
Thermal Diffusivity, mm2/s 14
48
Thermal Shock Resistance, points 53
7.9

Alloy Composition

Carbon (C), % 0.48 to 0.53
0
Chromium (Cr), % 0.8 to 1.1
0
Copper (Cu), % 0
92 to 94
Iron (Fe), % 96.7 to 97.7
0
Lead (Pb), % 0
1.0 to 2.0
Manganese (Mn), % 0.7 to 0.9
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0.15 to 0.35
0
Sulfur (S), % 0 to 0.040
0
Tin (Sn), % 0
1.0 to 2.0
Vanadium (V), % 0.15 to 0.3
0
Zinc (Zn), % 0
2.0 to 6.0
Residuals, % 0
0 to 0.7