Brass

Brass in Extruded, Drawn and Sheeted Bars

The production of Brass in Bars, takes place by extrusion process, i.e., by compression of a billet (Brass in Bars produced by continuous casting) heated to the softening state, and extruded through a steel die that gives the metal the desired shape.

After extrusion, the resulting extruded brass bar undergoes a drawing process. This process, performed ‘cold’, consists of passing the bar through a steel die of calibrated dimensions, so as to give the drawn Brass section a profile with a very tight dimensional tolerance (see related tables in the technical catalogue).

Brass sheets are produced by continuous casting and subsequent rolling. Rolling consists of dragging the material through two rollers with parallel and counter-rotating axes; the space between the two rollers (canal) determines the thickness of the Brass sheet.

Brass alloys and characteristics:

Brass is an alloy of Copper (Cu) and Zinc (Zn) with varying percentages of Zinc depending on the requirements for the use of the Brass. In order to improve its machinability for chip removal, while maintaining its fundamental characteristics, alloys have also been made with the addition of Lead (Pb) where this element, insoluble in the crystalline structure of the alloy, reduces the length of the chip and also reduces tool wear and heating, thus prolonging tool life and speed of removal.

These brass alloys are OT.58 and OT.59 (Cu Zn39 Pb3 and Cu Zn40 Pb2) and are by far the most widely used in the production of components for the mechanical engineering industry.

Brass plates and pipes, on the other hand, are made of OT.63 (binary alloy Cu Zn37) as they do not require machining. Brass alloys with zinc percentages ranging between 36% and 45% are also easily machined by heat.

We have a well-stocked warehouse of Brass in round, square, rectangular, hexagonal bars, pipes, profiles and sheets of various thicknesses, as shown below.

OT 58 Drawn Brass UNI EN 12164 and Extruded Brass UNI EN 12165 available in:

Round bars from Ø1.5 mm to Ø300 mm. in standard lengths from 3,000 mm.
Square bars from ≠2 x 2mm. to ≠120 x 120mm. in standard lengths from 3’000mm.
Hexagonal bars from ≠ 3mm. to ≠ 80mm. in standard lengths from 3’000mm.
Rectangular bars from ≠2 x 4mm. to ≠50 x 150mm. in standard lengths from 3’000mm.
Various angle, ‘L’ and ‘T’ profiles, and on request round perforated bar, half-round bar and half-round bar, in standard lengths of 3’000mm.

OT 59 Laminated Brass Cu59 Zn39 Pb2 UNI EN 1652 called ‘clockwork’, available in:

Platess from ≠0.3 to ≠10mm. and dimensions from 670 x 1’340mm.
Platess from ≠1 to ≠5mm. and dimensions from 600 x 2’000mm.

OT 63 Laminated brass Cu63 Zn37 UNI EN 1563 hard, half-hard and annealed, available in:

Hard plates from ≠0.1 to ≠0.4mm. and dimensions from 670 x 1’340mm.
Half-hard and hard plates from ≠0,5 to ≠10mm. and dimensions from 1’000 x 2’000mm.
Annealed plates from ≠0,5 to ≠3mm. and dimensions from 1’000 x 2’000mm.
Hard and annealed strip in coils, with thicknesses from ≠0.2 to ≠2.5mm.
Round, square, rectangular and hexagonal tubes in various thicknesses, with standard length 5’000mm.

We can make extruded profiles to drawing, in any size and format.

All brass bars or sheets can be supplied cut to size (see technical catalogue section ‘Services’).

All brass marketed by Commerciale Fond is produced by foundries with a certified ‘Quality System’ in compliance with the UNI EN ISO 9001-2008 standard.

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Brass

Brass in Extruded, Drawn and Sheeted Bars

We have a well-stocked warehouse of Brass in round, square, rectangular, hexagonal bars, pipes, profiles and sheets of various thicknesses, as shown below.

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