VERSIONE
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Insights
Pictures
The company
Unloading
reservation
Large Storage
Room
Ecological
Plants
Short processing
Time
Delna’s Entrance
Gantries
Coil
stockage
Coil
stockage
Disposal
facilities
Delna's story
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Delna was founded in 1971 from an industrial project realized by a group of entrepreneurs. The aim was to bring to the market a service of stockpiling and coil pickling that would accommodate the new dimensions of steel mill products and the principles of eco-sustainability of the plants at the same time.
The far-sightedness of the founders has, over time, translated into an entrepreneurial success that in 50 years of continuous development has achieved ambitious goals: exceeding one million tonnes per year and over 18 million tonnes processed in the period.
Short Processing
time
Unloading
reservation
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The material is delivered and collected by customers' own vehicles. In order to avoid long waits and crowds of vehicles in the forecourt in front of the entrance, each haulier books the day and time in our online calendar.
At the entrance, an electronic display board shows the number plate of the vehicle authorised to access the site, thus enabling the equal distribution of loads and unloads throughout the day.
The company
Large Storage Room
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180,000 square metres for the storage of coils and 15,000 square metres for the storage of wire rods allow Delna to be an "external warehouse" for its customers: this allows greater freedom of purchase independent of the possibilities of storage in internal warehouses and a greater assortment.
Customers can expand their assortment of both black and pickled and ask Delna to deliver batches every day, even in small quantities.
Unloading
Reservation
Ecological
plants
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Delna has facilities for the roasting furnace separation of spent hydrochloric acid from iron solution. The technological cycle returns a solution of regenerated hydrochloric acid with a yield of 98% to the pickling plant, while the powdered iron oxide obtained from the process is used by other companies for the production of ferrites and permanent magnets.
The water used for washing is treated with lime and flocculant to separate the inert sludge, which is thickened by the filter press and then disposed of. In this way the water is completely purified before being discharged into surface water courses.
The crystallisation plant recovers the regenerated sulphuric acid from the recycling of spent baths and prepares it for reuse in the pickling process.
At the same time, it produces ferrous sulphate heptahydrate crystals that can be reused both in agriculture and for water purification.
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large storage
room
short processing
time
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The transformation of the material is carried out with a maximum of a three-day lead time from receipt of the customer's order.
The scheduling of pickling and/or cutting is agreed with the customer on the basis of his daily needs. Thanks to Delna's great flexibility, programming is actually done by the customer himself, simply by making a pickling or cutting request.
Ecological
Plants
The company
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Code of Ethics
Quality, environment and safety policy
Hcl Bath
From 900 mm to 1500 mm
Thickness:Steel strength ≤ 600 N/mm²
from 1.4 mm to 7 mm
Steel strength > 600 N/mm²
and < 900 N/mm² from 1.4 mm to 5 mm
35 tons
Diameter of inlet coil:Inter from 600 mm to 850 mm
Outer max 2100 mm
Diameter of outlet coils:Intern 610 mm
Outer max 2100 mm
400.000 tons
Hcl Bath
From 600 mm to 1600 mm
Thickness:Steel strength ≤ 600 N/mm²
from 1.5 mm to 15 mm
Steel strength > 600 N/mm²
and < 900 N/mm² from 1.5 mm to 10 mm
35 tons
Diameter of inlet coil:Intern from 600 mm to 850 mm
Outer max 2100 mm
Diameter of outlet coils:Intern 610 mm
Outer max 2100 mm
450.000 tons
H2SO4l bath
Wire diameter:From 3 mm to 45 mm
3000 kg
3000 mm
Treatment A:Pickling, lime treatment
Treatment B:Pickling, phosphitylation
lime treatment or polymerization
80.000 tons
Hcl Bath
From 900 mm to 1500 mm
Thickness:Steel strength ≤ 600 N/mm²
from 1.4 mm to 7 mm
Steel strength > 600 N/mm²
e < 900 N/mm² from 1.4 mm to 5 mm
35 tons
Diameter of inlet coil:Inter from 600 mm to 850 mm
Outer max 2100 mm
Diameter of outlet coils:Intern 610 mm
Outer max 2100 mm
400.000 tons
Hcl Bath
From 600 mm to 1600 mm
Thickness:Steel strength ≤ 600 N/mm²
from 1.5 mm to 15 mm
Steel strength > 600 N/mm²
and < 900 N/mm² from 1.5 mm to 10 mm
35 tons
Diameter of inlet coil:Intern from 600 mm to 850 mm
Outer max 2100 mm
Diameter of outlet coils:Intern 610 mm
Outer max 2100 mm
450.000 tons
H2SO4l bath
Wire diameter:From 3 mm to 45 mm
3000 kg
3000 mm
Treatment a:Pickling, lime treatment
Treatment B:Pickling, phosphitylation
lime treatment or polymerization
80.000 tons
1500 mm
Thickness:From 1.3 mm to 6 mm
Cutting strips number:Based on steel thickness and strength
35 tons
Diameter of coil intel:Inner from 600 to 850 mm
Outer max 2100 mm
Diameter of outlet coils:Intern 500 mm
Outer max 2100 mm
150.000 tons
1800 mm
Thickness:From 1.5 mm to 15 mm
Numero tagli:Based on steel thickness and strength
35 tons
Diameter of coil intel:Inner from 600 to 800 mm
Outer max 2100 mm
Diameter of outlet coils:Inner 500 mm until a thickness 13 mm
Inner mm 610 for thickness > 13 mm
Outer max 2100 mm
180.000 tons
1500 mm
Thickness:From 1.3 mm to 6 mm
Cutting strips number:Based on steel thickness and strength
35 tons
Diameter of coil intel:Inner from 600 mm to 850 mm
Outer max 2100 mm
Diameter of outlet coils:Intern 500 mm
Outer max 2100 mm
150.000 tons
1800 mm
Thickness:From 1.5 mm to 15 mm
Cutting strips number:Based on steel thickness and strength
35 tons
Diameter of coil intel:Inner from 600 mm to 800 mm
Outer max 2100 mm
Diameter of outlet coils:Inner 500 mm until a thickness 13 mm
Inner 610 mm for thickness > 13 mm
Outer max 2100 mm
180.000 tons
Inbound coil identification and status check with immediate feedback to the customer in case of problems
External inspection of quality aspect
Physical measurement of coil width
Association of a unique progressive number to the incoming coil registered
The material is constantly tracked, each coil is assigned a progressive number and a barcode so that there is a unique binary correspondence with the 'primary coil'.
Constant quality control during processing with reports and pictures.
Our thickness and width measuring instruments provide the end user with an in-depth and pragmatic knowledge of the physical characteristics of the coil, enabling it to be used in a targeted manner.
Sampling for chemical and mechanical analysis.
Specific quality reports for customers wishing to qualify new suppliers.
On request, daily delivery of product in the desired quantity.
Inbound coil identification and status check
with immediate feedback to the customer in case of problems
Quality report in case of process defects
Automatic in-line detection of thickness and width of the coil during the working phases with relative graphs available
Black coil stockage180.000 t
Rod wire stockage15.000 t
Continuous traceability
Max three-days lead time transformation from the order receipt
price lists conditions
Price lists valid from 01/01/2022
Quality Pickling Price List 01
Quality Pickling Price List 03
price lists conditions
Price lists valid from 01/01/2022
Slitter Quality Price List 01
Slitter Quality Price List 03
price lists conditions
Price lists valid from 01/03/2024
Wire Rod Pickling Price List
We would like to bring to your attention the booklet Our common Home: A guide to caring for our living planet.
It has been promoted by the Stockholm Environment Institute (SEI) and the Dicastery for Promoting Integral Human Development.
Download booklet
