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C99700 Brass vs. S32750 Stainless Steel

C99700 brass belongs to the copper alloys classification, while S32750 stainless steel belongs to the iron alloys. There are 26 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is C99700 brass and the bottom bar is S32750 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
210
Elongation at Break, % 25
17
Poisson's Ratio 0.32
0.27
Shear Modulus, GPa 46
81
Tensile Strength: Ultimate (UTS), MPa 380
860
Tensile Strength: Yield (Proof), MPa 170
590

Thermal Properties

Latent Heat of Fusion, J/g 200
300
Maximum Temperature: Mechanical, °C 160
1100
Melting Completion (Liquidus), °C 900
1450
Melting Onset (Solidus), °C 880
1400
Specific Heat Capacity, J/kg-K 410
480
Thermal Expansion, µm/m-K 20
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.0
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 25
21
Density, g/cm3 8.1
7.8
Embodied Carbon, kg CO2/kg material 3.3
4.1
Embodied Energy, MJ/kg 53
56
Embodied Water, L/kg 320
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 78
130
Resilience: Unit (Modulus of Resilience), kJ/m3 120
860
Stiffness to Weight: Axial, points 8.3
15
Stiffness to Weight: Bending, points 20
25
Strength to Weight: Axial, points 13
31
Strength to Weight: Bending, points 14
26
Thermal Shock Resistance, points 11
25

Alloy Composition

Aluminum (Al), % 0.5 to 3.0
0
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0
24 to 26
Copper (Cu), % 54 to 65.5
0 to 0.5
Iron (Fe), % 0 to 1.0
58.1 to 66.8
Lead (Pb), % 0 to 2.0
0
Manganese (Mn), % 11 to 15
0 to 1.2
Molybdenum (Mo), % 0
3.0 to 5.0
Nickel (Ni), % 4.0 to 6.0
6.0 to 8.0
Nitrogen (N), % 0
0.24 to 0.32
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 0
0 to 0.8
Sulfur (S), % 0
0 to 0.020
Tin (Sn), % 0 to 1.0
0
Zinc (Zn), % 19 to 25
0
Residuals, % 0 to 0.3
0