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Trafilerie San Paolo S.r.l.

Via C.F. Borromeo, 29, 22036 Erba (CO)
Telephone +39 031 610767
Fax +39 031 641887

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Hall map

wire 2022 hall map (Hall 11): stand J16

Fairground map

wire 2022 fairground map: Hall 11

Our range of products

Product categories

  • 04  Wire and wire products
  • 04.01  Wire and bar material
  • 04.01.01  Wire, related to its shape and dimension
  •  Drawn or cold-rolled wire

Our products

Product category: Drawn or cold-rolled wire

Cold heading wire


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Product category: Drawn or cold-rolled wire

Steels for springs and chains


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Product category: Drawn or cold-rolled wire

Steels for aerospace industry


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Product category: Drawn or cold-rolled wire

Trafilerie San Paolo: Peeled Steel in Coils up to 42 mm

There is an urgent need for reliable and flawless products in the cold forming industry, but this doesn’t always go hand in hand with the usual quality steel products can guarantee, especially concerning surface defects.

This is why Trafilerie San Paolo chose to apply the already-known peeling technology to wire coils, with the specific purpose of pushing steel products’ technical limits in order to meet the high standards required by precision mechanics.
The usual coil-to-coil drawing system does not remove surface defects. It reduces them flush with the surface, but it doesn’t remove under-surface inclusions nor reduce decarburisation.

The coil-to-coil peeling system applied by Trafilerie San Paolo instead allows the surface to be peeled off, acting similarly to a chip removal lathe.

This surface peeling, which is usually about 1mm in relation to the net removal diameter, removes any cracks, folds, porosity, decarburisation, and under-surface inclusions.

Statistically speaking, the removal of all these flaws on highly defective finished products grants after the final selection near to no waste.

This technology has been largely employed in aeronautical applications, as well as automotive safety components.

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About us

Company portrait

We at Trafilerie San Paolo drawn steel wire coils raw, annealed phosphate coated in a range of diameters from 2,00 to 42,00 mm.
We supply the main cold heading companies in Europe producing fasteners and special items: they use our steel qualities for the manufactoring of low resistance screws, self-tapping screws and medium and high resistance bolts and nuts or special fastening components.
We have been in this market since 1966 and therefore customers can look at us as reliable supplier in terms of quality and service as well as in terms of availability to find all possible solutions to improve production and quality of cold heading technologies.

Our work with our customer has a goal: give shape to your product and give value to your job.

Company data

Number of employees 50-99
Foundation 1967
Area of business Wire industry