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C37700 Brass vs. S30452 Stainless Steel

C37700 brass belongs to the copper alloys classification, while S30452 stainless steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is C37700 brass and the bottom bar is S30452 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
200
Elongation at Break, % 40
34
Poisson's Ratio 0.31
0.28
Rockwell B Hardness 45
88
Shear Modulus, GPa 39
77
Shear Strength, MPa 270
440
Tensile Strength: Ultimate (UTS), MPa 400
660
Tensile Strength: Yield (Proof), MPa 160
310

Thermal Properties

Latent Heat of Fusion, J/g 170
290
Maximum Temperature: Mechanical, °C 120
960
Melting Completion (Liquidus), °C 890
1420
Melting Onset (Solidus), °C 880
1380
Specific Heat Capacity, J/kg-K 380
480
Thermal Conductivity, W/m-K 120
16
Thermal Expansion, µm/m-K 21
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 30
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 23
15
Density, g/cm3 8.1
7.8
Embodied Carbon, kg CO2/kg material 2.6
3.0
Embodied Energy, MJ/kg 45
43
Embodied Water, L/kg 320
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
180
Resilience: Unit (Modulus of Resilience), kJ/m3 120
250
Stiffness to Weight: Axial, points 7.1
14
Stiffness to Weight: Bending, points 19
25
Strength to Weight: Axial, points 14
23
Strength to Weight: Bending, points 15
22
Thermal Diffusivity, mm2/s 39
4.2
Thermal Shock Resistance, points 13
15

Alloy Composition

Carbon (C), % 0
0 to 0.080
Chromium (Cr), % 0
18 to 20
Copper (Cu), % 58 to 61
0
Iron (Fe), % 0 to 0.3
66.3 to 73.8
Lead (Pb), % 1.5 to 2.5
0
Manganese (Mn), % 0
0 to 2.0
Nickel (Ni), % 0
8.0 to 10.5
Nitrogen (N), % 0
0.16 to 0.3
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0
0 to 0.75
Sulfur (S), % 0
0 to 0.030
Zinc (Zn), % 35.7 to 40.5
0
Residuals, % 0 to 0.5
0