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C35000 Brass vs. ASTM A229 Spring Steel

C35000 brass belongs to the copper alloys classification, while ASTM A229 spring steel belongs to the iron alloys. There are 24 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is C35000 brass and the bottom bar is ASTM A229 spring steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
190
Poisson's Ratio 0.31
0.29
Shear Modulus, GPa 40
72
Tensile Strength: Ultimate (UTS), MPa 340 to 650
1690 to 1890

Thermal Properties

Latent Heat of Fusion, J/g 170
250
Maximum Temperature: Mechanical, °C 120
400
Melting Completion (Liquidus), °C 920
1450
Melting Onset (Solidus), °C 890
1410
Specific Heat Capacity, J/kg-K 380
470
Thermal Conductivity, W/m-K 120
50
Thermal Expansion, µm/m-K 21
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 26
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 29
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 23
1.8
Density, g/cm3 8.1
7.8
Embodied Carbon, kg CO2/kg material 2.7
1.4
Embodied Energy, MJ/kg 45
19
Embodied Water, L/kg 320
46

Common Calculations

Stiffness to Weight: Axial, points 7.1
13
Stiffness to Weight: Bending, points 19
24
Strength to Weight: Axial, points 12 to 22
60 to 67
Strength to Weight: Bending, points 13 to 21
40 to 43
Thermal Diffusivity, mm2/s 37
14
Thermal Shock Resistance, points 11 to 22
54 to 60

Alloy Composition

Carbon (C), % 0
0.55 to 0.85
Copper (Cu), % 60 to 63
0
Iron (Fe), % 0 to 0.1
97.5 to 99
Lead (Pb), % 0.8 to 2.0
0
Manganese (Mn), % 0
0.3 to 1.2
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
0.15 to 0.35
Sulfur (S), % 0
0 to 0.050
Zinc (Zn), % 34.5 to 39.2
0
Residuals, % 0 to 0.4
0

Comparable Variants