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ASTM A227 Spring Steel vs. C23000 Brass

ASTM A227 spring steel belongs to the iron alloys classification, while C23000 brass belongs to the copper alloys. There are 28 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is ASTM A227 spring steel and the bottom bar is C23000 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
110
Elongation at Break, % 12
2.9 to 47
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 72
42
Shear Strength, MPa 1030 to 1330
220 to 340
Tensile Strength: Ultimate (UTS), MPa 1720 to 2220
280 to 590
Tensile Strength: Yield (Proof), MPa 1430 to 1850
83 to 480

Thermal Properties

Latent Heat of Fusion, J/g 250
190
Maximum Temperature: Mechanical, °C 400
170
Melting Completion (Liquidus), °C 1450
1030
Melting Onset (Solidus), °C 1410
990
Specific Heat Capacity, J/kg-K 470
390
Thermal Conductivity, W/m-K 52
160
Thermal Expansion, µm/m-K 12
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
37
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
39

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
28
Density, g/cm3 7.8
8.6
Embodied Carbon, kg CO2/kg material 1.4
2.6
Embodied Energy, MJ/kg 19
43
Embodied Water, L/kg 46
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 200 to 260
6.2 to 260
Stiffness to Weight: Axial, points 13
7.2
Stiffness to Weight: Bending, points 24
19
Strength to Weight: Axial, points 61 to 79
8.9 to 19
Strength to Weight: Bending, points 41 to 48
11 to 18
Thermal Diffusivity, mm2/s 14
48
Thermal Shock Resistance, points 55 to 71
9.4 to 20

Alloy Composition

Carbon (C), % 0.45 to 0.85
0
Copper (Cu), % 0
84 to 86
Iron (Fe), % 97.4 to 99.1
0 to 0.050
Lead (Pb), % 0
0 to 0.050
Manganese (Mn), % 0.3 to 1.3
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0.15 to 0.35
0
Sulfur (S), % 0 to 0.050
0
Zinc (Zn), % 0
13.7 to 16
Residuals, % 0
0 to 0.2

Comparable Variants