Continuously cast iron hollow bars
Holed cast iron bars represent a consolidated technical solution for numerous mechanical and industrial applications requiring dimensional precision, structural reliability and excellent mechanical characteristics.
Fonderia Quaglia & Colombo has been selling hollow cast iron bars since the 1970s, building decades of experience in selecting and supplying high-quality continuous casting products made from ductile and lamellar iron.
Over the years, the evolution of the production process has allowed us to obtain high-quality hollow bars, free from internal porosity and suitable, in many cases, to replace components made of steel.
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Production of hollow bars in spheroidal and flake cast iron
The holed cast iron bars marketed by Fonderia Quaglia & Colombo are produced by continuous casting, a process that ensures a homogeneous and controlled internal structure along the entire length of the product. This technology produces a compact material with consistent mechanical characteristics and high machinability.
The availability of spheroidal cast iron and flake cast iron allows us to meet different application needs. Spheroidal cast iron is appreciated for its mechanical strength and ductility, while flake cast iron offers excellent vibration damping properties and dimensional stability.
CONTINUOUS CASTING IN SPHEROIDAL AND FLAKE CAST IRON
Technical characteristics of cast iron perforated bars
The holed cast iron bars are distinguished by a series of technical characteristics that make them ideal for use in industrial and mechanical engineering. The absence of internal defects, such as blowholes or inclusions, allows the material to be safely processed, even for precision components.
Among the most relevant technical aspects are:
- compact and uniform internal structure
- high dimensional stability
- excellent mechanical workability
- good performance in terms of wear resistance
- reliable behavior even in the presence of repeated stresses.
For specifications of the alloys used, also consult the Cast Iron section of the site.
In the highlighted column the internal diameter (in mm), in the other boxes the corresponding external diameters (mm) available.
FAQ
What are continuously cast iron hollow bars?
They are cylindrical semi-finished products with a central hole, made by continuous casting, characterised by a compact and homogeneous internal structure.
What is the difference between ductile iron and lamellar iron?
Ductile iron offers greater strength and ductility, while lamellar iron is valued for its dimensional stability and vibration damping.
Can cast iron bars replace steel?
In many applications, yes, especially when good mechanical performance combined with easier workability is required.
Are there different diameter combinations available?
Yes, cast iron hollow bars are supplied with various internal and external diameters to suit different design requirements.
Where can I find the specifications of the alloys used?
The chemical and mechanical characteristics of the alloys are available in the Cast Iron section of the site.
