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SAE-AISI M33 Steel vs. C66900 Brass

SAE-AISI M33 steel belongs to the iron alloys classification, while C66900 brass belongs to the copper alloys. There are 19 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI M33 steel and the bottom bar is C66900 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
120
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 78
45
Tensile Strength: Ultimate (UTS), MPa 810 to 2210
460 to 770

Thermal Properties

Latent Heat of Fusion, J/g 270
190
Melting Completion (Liquidus), °C 1550
860
Melting Onset (Solidus), °C 1500
850
Specific Heat Capacity, J/kg-K 440
400
Thermal Expansion, µm/m-K 12
20

Otherwise Unclassified Properties

Base Metal Price, % relative 32
23
Density, g/cm3 8.2
8.2
Embodied Carbon, kg CO2/kg material 7.7
2.8
Embodied Energy, MJ/kg 110
46
Embodied Water, L/kg 150
310

Common Calculations

Stiffness to Weight: Axial, points 14
8.1
Stiffness to Weight: Bending, points 24
20
Strength to Weight: Axial, points 27 to 75
15 to 26
Strength to Weight: Bending, points 24 to 46
16 to 23
Thermal Shock Resistance, points 25 to 68
14 to 23

Alloy Composition

Carbon (C), % 0.85 to 0.92
0
Chromium (Cr), % 3.5 to 4.0
0
Cobalt (Co), % 7.8 to 8.8
0
Copper (Cu), % 0 to 0.25
62.5 to 64.5
Iron (Fe), % 71.4 to 76.3
0 to 0.25
Lead (Pb), % 0
0 to 0.050
Manganese (Mn), % 0.15 to 0.4
11.5 to 12.5
Molybdenum (Mo), % 9.0 to 10
0
Nickel (Ni), % 0 to 0.3
0
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0.15 to 0.5
0
Sulfur (S), % 0 to 0.030
0
Tungsten (W), % 1.3 to 2.1
0
Vanadium (V), % 1.0 to 1.4
0
Zinc (Zn), % 0
22.5 to 26
Residuals, % 0
0 to 0.2