Aluminum 1100-O vs. Brass C360

Compare Aluminum 1100-O vs. Brass C360 strength, stiffness, weight and thermal properties.

Change either side

Mechanical
Try it on a partA sample part to run stress or thermal on, free in your browser	Open in LessCAD	Open in LessCAD
Yield strength	35MPasourcetypical, O, 0.0625 in specimen	310MPasourcetypical, 0.5% extension under load
Ultimate tensile strength	90MPasourcetypical, O	400MPasourcetypical
Elongation at break	35%sourcetypical, O, in 4D	25%sourcetypical, 1 in. rod
Young's modulus (stiffness)	69GPasourcetypical	96.5GPasourcetypical, temper-independent
Density	2,710kg/m³sourcenominal, 20 °C	8,498kg/m³sourcenominal
Strength to weight	12.9kN·m/kg	36.5kN·m/kg2.82x higher
Stiffness to weight	25.5MN·m/kg2.24x higher	11.4MN·m/kg
Poisson's ratio	not sourced	0.34sourcebase material: leaded free-machining brass CuZn39Pb2 (C37700), Wieland-Z30 rolled products, reference value at room temperature
Shear modulus	not sourced	36GPa
Bulk modulus	not sourced	101GPa
Speed of sound	5,046m/s	3,370m/s
Thermal
Thermal conductivity	222W/m·Ksourcetypical, O, 20 °C	116W/m·Ksourcetypical, 20 °C
Thermal expansion	23.6µm/m·Ksourcetypical, mean 20-100 °C	20.5µm/m·Ksourcetypical, mean 20-300 °C
100 mm part over a 50 °C swing	118µm growth	103µm growth15% less
Specific heat	901J/kg·Ksourcebase material: commercially pure aluminium EN AW-1050A (Hydro), 20 °C	377J/kg·Ksourcetypical, 20 °C
Heats up and cools (diffusivity)	90.9mm²/s2.51x faster	36.2mm²/s
Thermal shock resistance	not sourced	11,997W/m
Melting point	640–655°Csourcemelting range	888–899°Csourcesolidus-liquidus
Values for	1100-O (annealed) commercially pure aluminium, Kaiser Aluminum Tube & Pipe Alloy 1100 Technical Data (Rev. 05/06), typical properties; specific heat from Hydro EN AW-1050A (99.5% Al) extruded-products datasheet (10/2018).	C36000 free-cutting brass, H02 half-hard rod 1 in. section (20% cold work), copper.org typical values

Every value links to the document that states it. "Not sourced" means no citable source states it (or only a specification minimum); figures computed from it are left out too.

Questions

Is Aluminum 1100-O stronger than Brass C360?

Brass C360 is stronger: its yield strength is 310 MPa against 35 MPa for Aluminum 1100-O (8.86x).

Which is lighter, Aluminum 1100-O or Brass C360?

Aluminum 1100-O is lighter: 2,710 kg/m³ against 8,498 kg/m³ for Brass C360.

Which is stiffer, Aluminum 1100-O or Brass C360?

Brass C360 is stiffer: Young's modulus 96.5 GPa against 69 GPa for Aluminum 1100-O, so the same part in Brass C360 deflects less under the same load.

Which is lighter for the same job, Aluminum 1100-O or Brass C360?

For the same stiffness or strength: Aluminum 1100-O is lighter for a stiff rod or tie (tension), stiff beam (bending), stiff panel or plate, strong panel or plate; Brass C360 is lighter for a strong rod or tie, strong beam.

Part that must be	Aluminum 1100-O	Brass C360
Stiff rod or tie (tension)	lighter	2.24x heavier
Stiff beam (bending)	lighter	2.65x heavier
Stiff panel or plate	lighter	2.8x heavier
Strong rod or tie	2.82x heavier	lighter
Strong beam	37% heavier	lighter
Strong panel or plate	lighter	5% heavier

For the same stiffness or strength, mass scales with density over stiffness (or strength) raised to a power set by how the part is loaded: 1 for a rod in tension, 1/2 for a beam in bending, 1/3 for a panel (the standard material-selection indices).

Which conducts heat better, Aluminum 1100-O or Brass C360?

Aluminum 1100-O conducts heat better: 222 W/m·K against 116 W/m·K for Brass C360.

Which expands less with temperature?

Brass C360 expands less: 20.5 µm/m·K against 23.6 µm/m·K for Aluminum 1100-O.

Among 72 materials

Stiffness against density

Strength against density