EN 573 and 485

We stock hot-rolled aluminum plates up to 260 mm thickness. We manufacture exclusively in accordance with the latest EN standards; some dimensions are also manufactured in accordance with US standards such as AMS.

Alloy types:
A distinction is made between the materials, which differ primarily in terms of the main alloying elements.

We also carry a wide stock range of Certal® and Unidal® plates (®Trademark of Constellium).

Material conditions:
According to the relevant EN standards for the respective alloy.

LOW STRESS:
• 2000 and 5000 alloy plates up to 150 mm controlled straightened/stretched
• 6000 series alloy plates mainly stress-relieved up to 200 mm
• 7000-series alloy plates mainly stress-relieved up to 250 mm

Of course, we can also produce blanks, rings, discs or water jet contours according to your specifications

Cast plates, sawn on six sides from homogenized cast ingots with our brand name CST® 5083 and Eloxcast® 5754, are stocked in thicknesses from 10 mm to 250 mm. Typical sizes are available from stock. Width between 1000 and 1750 mm and lengths from 2150 to 4500 mm. Of course, we also manufacture cut-to-size pieces from them.

Any desired thickness up to 1050 mm can be produced to your order.

The plates are mainly used in machine and molding construction, where medium mechanical strength and the best possible machinability are required. Due to the production process and the homogenization of the structure, the plates have extremely low residual stress. The plates and blocks are supplied with band-sawn surfaces that have a very good surface finish.

Alloy types with homogenized structure and the lowest possible porosity

CST® 5083

Eloxcast®  5754

Of course, we can also produce blanks, rings, discs or water jet contours according to your specifications.

Cast, 6-side sawn, CNC machined with protective PVC film on both sides

We produce our precision-milled aluminum sheets with the brand names KuKPlan® CST-M and Eloxcast®-M from our CST® and Eloxcast® cast plates.

Standard thicknesses of 5 - 100 mm are stocked in commercially available formats. Any desired thickness can be produced to order.

These plates are mainly used in machine and fixture construction, where medium mechanical strength and the best possible machinability are required. This product is characterized by extremely low residual stress behavior, very narrow thickness and flatness tolerances and a finely milled surface with very low roughness.

Alloy type:

KuKPlan® CST-M 5083

Eloxcast®-M 5754

Homogenized microstructure and lowest possible porosity

Of course, we can also produce cut-to-size parts, rings, discs or water jet contours from this material according to your specifications.

Rolled, stretched, CNC machined and with protective PVC film on both sides

We produce our milled precision sheets with the brand name KuKPlan® RMT from our hot-rolled EN-AW plates from stock

• 5083-RMT280®

• 6082-RMT281®

• 7075-RMT500®

Alplan® plates are also available from stock (®Trademark of Constellium).

As a rule, we stock thicknesses from 10 to 60 mm in standard formats.

Almost any desired thickness can be produced to order.

These sheets are mainly used in general mechanical engineering and also in fixture construction, where medium to high mechanical strength and the best possible machinability are required. Low residual stress behavior, very tight thickness and flatness tolerances as well as the finely milled surface characterize this product.

Of course, we can also produce cut-to-size parts, rings, discs or water jet contours from it according to your specifications.

The best way to show your colours

Eloxcast® is a cast alloy based on EN-AW5754 that is cast and homogenized as ingots according to the most precise specifications. We only have Eloxcast® produced by a European manufacturer to guarantee consistent quality.

This product is ideal for anodizing your finished components.

Its manufacturing process, pickling and subsequent anodizing lead to reproducible surface results time and time again.

We offer Eloxcast® as a six side sawn plate version up to 380 mm thick or as a CNC surface machined precision plate face-milled sheet.

Of course, we can also produce cut-to-size pieces, rings, discs or water jet contours according to your specifications.

Cyclecast® is our trademark for aluminum casting alloys in the form of ingots and sheets that are:

produced exclusively from returned, unmixed customer scrap that is recycled with a low energy input or primary aluminum that has been verifiably and exclusively smelted using 100% renewable energy from wind and water power.

As part of the Green Deal, many companies along the supply chain are increasingly obliged to minimize their carbon footprint, even for primary materials.

From homogenized and hardened cast ingots made from a 7021 alloy, we manufacture plates and blocks six sides sawn with our brand name CST® 7X.

The product is hardened to T79 and is available in thicknesses of up to 420 mm. These sheets are mainly used in mold and tool making when a high mechanical load-bearing capacity with large thicknesses is required and the rolled sheet is no longer technically feasible. Due to the production process, homogenization and heat treatment, the plates have a low residual stress behavior in relation to their thickness.

Alloy type:

CST® 7X

Homogenized structure and hardened to the T79 state

Of course, we can also produce blanks, rings, discs or water jet contours from it according to your specifications.

Forged plates with our brand name KuKForge® are stocked in thicknesses from 200 mm to 600 mm. At thicknesses exceeding 200 mm, rolled plates may no longer achieve sufficient hardening through rolling. Forging is therefore necessary to achieve high mechanical values.

These plates are used in machining where the highest possible mechanical strength and excellent machinability are required.

Alloy types

KuKForge® 6082

KuKForge® 7075

Material Temper:

• T652

Of course, we can also produce blanks, rings, discs or water jet contours according to your specifications.

Aluminium bars

Extruded according to EN 573 and EN 755, or cold finished according to EN 754 as well as cast and forged.

The uses of aluminum bars, especially in industrial applications, are almost unlimited. As a mass-produced turned part in the automotive or electrical industry. As a small series part in tool and mold making.

Depending on the alloy, a wide range of mechanical and decorative properties make the aluminum bar an all-rounder in CNC machining.

We keep in stock: Round, flat and square bars

We can also supply fixed lengths at short notice. We cut all dimensions to the finished size you require on modern sawing centers. Quickly and precise with tight tolerances.

Aluminium tubes
extruded according to EN 573 and EN 755

Aluminium tubes are extruded hollow profiles with a round, square or rectangular cross-section.

We stock tubes in the following alloys:

• EN AW-2007
• EN AW-6060
• EN AW-6063
• EN AW-6082

Range of dimensions

Round tubes from

• outside diameter 8 mm x wall 1.0 mm to

• outside diameter 400 mm x wall 30 mm

• technically possible from new production even up to an outer diameter of 600 mm

We stock square and rectangular tubes from 15x15x1.0 mm to 240x100x4 mm

Aluminium profiles

extruded according to EN 573 and EN 755

We supply all standard profiles in 6060/6063/6082, usually in 6000 mm lengths

Anodized or powder-coated on request

Profiles according to customer drawings

extruded according to EN 573 and EN 755, but also with special tolerances according to customer requirements

Mainly 6060/6063 and 6082, but please also ask us about our options for difficult-to-press alloys such as 2xxx or 7xxx

We have our manufacturers that produce special profiles and special lengths with weights per meter from 0.1 to 30 kg and stock them exclusively for you here.

Complete machining according to drawing

In addition to the procurement and delivery of various metals, KASTENS & KNAUER offers you the complete machining of your aluminum components according to your drawing. We take care of the provision of materials from our own warehouse and the punctual and high-quality realization of the mechanical production through to the tested delivery part. We also offer surface finishing such as anodizing, if required.

This combination offers our customers advantages, particularly in terms of time: 

Material does not have to be procured or processed by third parties and delivery is also handled directly by KASTENS & KNAUER's own haulage company. This eliminates the time-consuming coordination of different companies and noticeably shortens the entire order processing time. All queries, whether of a technical, commercial or logistical nature, are answered by a single point at KASTENS & KNAUER.

Specializing in aluminum, we offer our customers complete processing according to drawings. Our modern machinery enables us to manufacture turned and milled parts, water jet contours, but we also offer assemblies, folded and bent parts as well as welded constructions.

This enables us to serve the demands of our customers and manufacture the required parts at an optimum price-performance ratio and deliver them directly to you.

With our large-scale machine, we machine full plates one or both sides without overcutting up to the size of 1800x4000 mm. Our standard size is 1550x3050 mm.  

The thickness can range from 8 to 100 mm. Depending on the alloy and the raw material, down to 5 mm is also possible.

Cutting to customer specifications is carried out on our modern BRIGANTO CNC precision saws or FRIGGI CS highspeed band saws.

We cut your required contours on multi-head waterjet systems up to a maximum of X / Y 3000 x 6000 mm 2D waterjet cutting can be used for almost all materials. 

Depending on the material to be cut, up to 200 mm material thickness, without heat-affected zone in a tolerance range of up to +/- 0.2 mm.

Band sawn rings and discs from 300 - 2000 mm outside diameter up to a maximum unit weight of 1000 kg