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C43400 Brass vs. ASTM A227 Spring Steel

C43400 brass belongs to the copper alloys classification, while ASTM A227 spring steel belongs to the iron alloys. There are 28 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is C43400 brass and the bottom bar is ASTM A227 spring steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
190
Elongation at Break, % 3.0 to 49
12
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 42
72
Shear Strength, MPa 250 to 390
1030 to 1330
Tensile Strength: Ultimate (UTS), MPa 310 to 690
1720 to 2220
Tensile Strength: Yield (Proof), MPa 110 to 560
1430 to 1850

Thermal Properties

Latent Heat of Fusion, J/g 190
250
Maximum Temperature: Mechanical, °C 170
400
Melting Completion (Liquidus), °C 1020
1450
Melting Onset (Solidus), °C 990
1410
Specific Heat Capacity, J/kg-K 380
470
Thermal Conductivity, W/m-K 140
52
Thermal Expansion, µm/m-K 19
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 31
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 32
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 28
1.8
Density, g/cm3 8.6
7.8
Embodied Carbon, kg CO2/kg material 2.7
1.4
Embodied Energy, MJ/kg 44
19
Embodied Water, L/kg 320
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 19 to 120
200 to 260
Stiffness to Weight: Axial, points 7.2
13
Stiffness to Weight: Bending, points 19
24
Strength to Weight: Axial, points 10 to 22
61 to 79
Strength to Weight: Bending, points 12 to 20
41 to 48
Thermal Diffusivity, mm2/s 41
14
Thermal Shock Resistance, points 11 to 24
55 to 71

Alloy Composition

Carbon (C), % 0
0.45 to 0.85
Copper (Cu), % 84 to 87
0
Iron (Fe), % 0 to 0.050
97.4 to 99.1
Lead (Pb), % 0 to 0.050
0
Manganese (Mn), % 0
0.3 to 1.3
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
0.15 to 0.35
Sulfur (S), % 0
0 to 0.050
Tin (Sn), % 0.4 to 1.0
0
Zinc (Zn), % 11.4 to 15.6
0
Residuals, % 0 to 0.5
0

Comparable Variants