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ASTM A229 Spring Steel vs. CC750S Brass

ASTM A229 spring steel belongs to the iron alloys classification, while CC750S brass belongs to the copper alloys. There are 29 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is ASTM A229 spring steel and the bottom bar is CC750S brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 490 to 550
54
Elastic (Young's, Tensile) Modulus, GPa 190
110
Elongation at Break, % 14
13
Poisson's Ratio 0.29
0.31
Shear Modulus, GPa 72
40
Tensile Strength: Ultimate (UTS), MPa 1690 to 1890
200
Tensile Strength: Yield (Proof), MPa 1100 to 1230
80

Thermal Properties

Latent Heat of Fusion, J/g 250
170
Maximum Temperature: Mechanical, °C 400
130
Melting Completion (Liquidus), °C 1450
860
Melting Onset (Solidus), °C 1410
810
Specific Heat Capacity, J/kg-K 470
380
Thermal Conductivity, W/m-K 50
110
Thermal Expansion, µm/m-K 12
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
24
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
26

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
25
Density, g/cm3 7.8
8.2
Embodied Carbon, kg CO2/kg material 1.4
2.8
Embodied Energy, MJ/kg 19
46
Embodied Water, L/kg 46
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 200 to 230
22
Resilience: Unit (Modulus of Resilience), kJ/m3 3260 to 4080
30
Stiffness to Weight: Axial, points 13
7.1
Stiffness to Weight: Bending, points 24
19
Strength to Weight: Axial, points 60 to 67
6.8
Strength to Weight: Bending, points 40 to 43
9.3
Thermal Diffusivity, mm2/s 14
35
Thermal Shock Resistance, points 54 to 60
6.7

Alloy Composition

Aluminum (Al), % 0
0 to 0.1
Carbon (C), % 0.55 to 0.85
0
Copper (Cu), % 0
62 to 67
Iron (Fe), % 97.5 to 99
0 to 0.8
Lead (Pb), % 0
1.0 to 3.0
Manganese (Mn), % 0.3 to 1.2
0 to 0.2
Nickel (Ni), % 0
0 to 1.0
Phosphorus (P), % 0 to 0.040
0 to 0.050
Silicon (Si), % 0.15 to 0.35
0 to 0.050
Sulfur (S), % 0 to 0.050
0
Tin (Sn), % 0
0 to 1.5
Zinc (Zn), % 0
26.3 to 36