Semi-finished hollow products made by extrusion or drawing with round and hexagonal section (round hole). The standard product is made from lead alloys, ensuring aptitude for molding processes and excellent machinability even at high speeds.
Hollow brass bars are used in many fields, such as production of valves, sanitary sector, production of small metal parts, furniture, mechanics, screws and bushings. They are normally supplied in 3-meter rods with at least one blunt end. On request, it is possible to evaluate the feasibility of square section formats and hollow bars in other alloys (CW510L, CW602N, …)
Round hollow bars
- Alloy: CW612N, CW614N, CW617N
- Outer diameter: 13 - 135 mm
- Hole diameter: 9 - 120 mm
- Physical state: Hard
Hexagonal bars
- Alloy: CW614N, CW617N
- Key: 15 - 80 mm
- Hole diameter: 8 - 72 mm
- Physical state: Hard
Square bars
- Side: 15 - 60 mm
- Hole diameter: 10 - 50 mm
- Physical state: Hard
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Our dimensional range is constantly updated, contact us for more information.
Solutions and services
Mario Crespi S.p.A. is able to offer its customers all types of semi-finished products, as well as various additional services for different needs.
Stock Service
We own one of the largest stocks ready for international delivery for hollow bars and solid bars, also in low lead content alloy.
