How thick is corrugated aluminum in elevator cabins? Aluminum corrugated sheet: types and features of choice

Corrugated aluminum sheet, distinguished not only by the texture of its surface, on which convexities of a certain configuration are specially formed, but also by its low weight, has recently become increasingly popular. This material is actively used not only by construction organizations, but also by designers, using it to create structures for various purposes.

Standard requirements

Rolled aluminum sheets with a corrugated cross-section profile, as specified in GOST 21631-76, are produced in the form of rectangular-shaped products, on which protrusions are specially applied, located at an angle to each other and forming a specific pattern. Such protrusions, as well as the very low weight of sheet aluminum, are precisely the most significant features of such a material.

You can familiarize yourself with the GOST requirements for sheet aluminum by downloading the document in pdf format from the link below.

The projections formed on the surface of the aluminum sheet are called corrugations. The corrugated surface consists of groups of adjacent protrusions formed from varying numbers of corrugations. Thus, a sheet whose corrugated surface is formed from groups of protrusions, each of which contains five corrugations, is an aluminum sheet quintet, two corrugations are a duet, one is a diamond. It is not difficult to distinguish sheets with different types of corrugation; to do this, just look at the photo of the product.

GOST specifies the basic geometric parameters:

  • length of finished sheets – 200–600 cm;
  • width of sheet products – 100–150 cm;
  • thickness of rolled aluminum sheets – 1.5–4 mm (it should be borne in mind that this parameter does not include the height to which the corrugations rise above the sheet).

The weight of one linear meter of aluminum is calculated using a special formula. It is necessary to know the following geometric parameters of such a product: the maximum and minimum dimensions of the sheet in terms of its thickness and width and the density of the alloy from which such a sheet is made. The provisions of GOST provide the following method for determining the weight of one linear meter of corrugated rolled aluminum sheets of various types.

  • The largest and smallest values ​​of sheet thickness are added together, and the total is divided by two.
  • The average sheet width is calculated by adding the minimum and maximum values ​​of this parameter and dividing the resulting amount by two.
  • Then, to determine the average volume of one linear meter of corrugated aluminum sheet, the obtained values ​​are multiplied.
  • The result of this multiplication must be multiplied by the density of the aluminum alloy from which the sheet in question is made, and then divided by 1000.

In the event that it is necessary to calculate the weight of corrugated aluminum sheets made from alloys of grades B95, B95-1 and B95-2, the formula takes into account the density of the material equal to 2.85 g/cm3. When calculating the mass of corrugated aluminum sheets from material of other grades, the following conversion factors are used:

  • 0.947 – for AB grade alloys;
  • 0.937 – AMg3;
  • 0.926 – AMg6;
  • 0.94 – AMg2;
  • 0.95 – AMg5;
  • 0.954–0.982 – D1, D12 and D16;
  • 0.97 – AKM;
  • 0.958 – AMts, AMtsS and MM;
  • 0,972 – 1915.
All of the above indicators of conversion factors are stipulated by the provisions of GOST 21631-76, the link to which is presented above.

The practicality of sheet aluminum, as a rule, is used for purely utilitarian purposes

Production methods

Aluminum sheets having a corrugated cross-section profile are produced using hot or cold rolling. In this case, corrugated sheets, the thickness of which is 3–4 mm, are made by hot rolling, and products with a smaller thickness are made using cold technology.

All such products, regardless of what type of corrugation needs to be applied to their surface, are produced according to the following technological scheme.

  • Quite massive ingots are made from aluminum alloy, weighing 2–3 tons.
  • Various preparatory operations are carried out with ingots.
  • The resulting billets are subjected to hot rolling, which can be followed by cold rolling if necessary.
  • Then the corrugated sheets are subjected to heat treatment and finishing operations, the technology of which depends mainly on what type of aluminum alloy was used for their manufacture.
An excellent, detailed video about all the nuances of the production of rolled aluminum sheets.

According to the technical specifications (TU), additional technological operations can be used for certain types of aluminum corrugated sheets. In particular, technical conditions have been specially developed for the production of aluminum sheets, on the surface of which “lentil” corrugation is applied. It is quite easy to determine the type of such corrugation even from a photo: its elements have a pronounced diamond-shaped configuration.

For the production of aluminum sheets with corrugation, the following grades of alloys of this metal are most often used: AMts and AMg. The preference of these alloys as a material for corrugated sheets is due to their high resistance to corrosion, which allows the successful use of products made from them in cases where they are exposed to high humidity and other aggressive environments.

Additional advantages of using aluminum alloys belonging to the AMts category are:

  • good ductility, which greatly facilitates the processing of such materials by plastic deformation methods;
  • good weldability ensured by the use of aluminum electrodes;
  • light weight;
  • decent mechanical characteristics.
Meanwhile, it should be borne in mind that aluminum alloys containing manganese cannot be subjected to heat treatment, which could improve their mechanical properties. Products made from these alloys are subjected to a technological operation such as cold hardening, which, although it reduces the plasticity of the material, can significantly increase its hardness.

Areas of application

The high popularity of aluminum sheets with various types of corrugation is explained by a whole list of their characteristics. This should include:

  • attractive appearance, which you can pay attention to even when viewing photos of such products;
  • exceptionally high resistance to the formation and development of corrosion processes;
  • low weight per m2;
  • exceptional anti-slip properties due to high roughness;
  • high environmental safety (aluminum does not emit any harmful impurities into the atmosphere);
  • long period of operation without loss of original characteristics;
  • ability to operate even in the most difficult conditions.

Due to the qualities of corrugated aluminum sheets, such as high roughness and immunity to negative environmental factors, they are actively used in the production of sea and river vessels. Such sheets cover the surfaces on which crew members and passengers move, as well as the floors of ship premises in which cargo is transported.

The automotive industry is another area in which corrugated sheets made from aluminum have found wide application. They are, in particular, used for arranging floors and steps of public transport, which are used in difficult conditions and must provide an anti-slip effect in all situations. Due to the exceptional decorative properties of corrugated aluminum, it is used in the original tuning of minibuses and SUVs; with the help of such sheets, the hoods and sides of cars operating in difficult conditions are strengthened.

Aluminum “corrugation” is a favorite material for tuning among car enthusiasts

This material can be used equally successfully both indoors and outdoors, so it is actively used in the construction industry. Thus, corrugated aluminum sheets are used for:

  • finishing the facades of buildings and structures for various purposes;
  • arrangement of underground passages, stairs and bridges, the working surfaces of which must have an anti-slip effect;
  • installation of road barriers;
  • making billboards.

The exceptional decorative characteristics of corrugated sheets made of aluminum allow modern designers to actively use them to design elements such as:

  • internal columns;
  • wall partitions;
  • dropped ceilings;
  • heating radiator screens.

Using corrugated aluminum sheets, modern interiors are designed in high-tech, minimalism, loft, techno and avant-garde styles.

Application for product/service

Light weight;

Long service life;

Relief pattern that prevents slipping even on a wet surface;

Presentable appearance;

Environmental safety of the product;

Resistance to many aggressive factors of the operating environment;

Affordable price of corrugated aluminum.

The most common brands you can buy are: AMg2N2, 1105ANr, AMg2Nr, and AMg3N2. The letter H indicates that the alloy is hard-worked. This material is more durable and hard. There are several types of cold-working: semi-hard-working (H2), cold-working (H), one-third cold-working (H3) and one-quarter cold-working (H4). Cold-worked sheets (H) have the greatest strength. The letter P is added to the marking of products obtained by cold rolling.

If you need to additionally process the product using bending, welding, and the product will be used outdoors, it is better for you to buy AMG2N2R (semi-hardened corrugated steel) or AMG2NR (cold-cold rolled steel). When used indoors, on a flat surface without distortion, the cheaper imported analogue GALAXY is also suitable.

Aluminum sheet corrugated lentils

Also found under the name “diamond” or “diamond”. The pattern is the simplest, consisting of a uniformly repeating single riffle. Due to its original appearance and anti-slip properties, it is widely used in many fields.

Aluminum sheet corrugated duet

It is a rolled metal product with double corrugation, evenly arranged in a checkerboard pattern on the surface, perpendicular to each other. Often used as a floor covering, because... Compared to lentils, it provides greater adhesion to the surface.

Aluminum sheet corrugated quintet

Five parallel grooves forming a pattern. Each group of 5 convexities is located perpendicular to another similar group. Thick quintet sheets are in great demand in the production of stair steps and lining the interior of car bodies.

Application of Aluminum Corrugated Sheet

Corrugated aluminum is an extremely popular and sought-after metal product that can be used everywhere. Among the areas of application of corrugated aluminum sheets are construction, production sites (including stairs, flights of stairs, passages, etc.), automotive and instrument making, agriculture, aircraft manufacturing and many others.

Due to their high resistance to corrosion, aluminum corrugated sheets can be used both outside and indoors, used as a finishing material and floor coverings. Very often, corrugated aluminum is used for lining refrigerated vans and car vans. In the food industry, corrugated aluminum is used for flooring.

The main function that makes corrugated aluminum so popular is the formation of an anti-slip coating. But today, very often, corrugated aluminum sheets are used for decorative purposes, for example, for tuning cars, motorboats, boats and other vehicles, as decorative elements. You can’t do without corrugated aluminum in the production of refrigeration rooms, installations, as well as many household appliances.

The development of technology in the metallurgical industry makes it possible to use rolled metal in areas unusual for the use of metallurgical products. The use of metal sheets as decorative parts for interiors and exteriors of private houses and cottages, and for decorative finishing of some parts of passenger cars makes things and objects more unique. The aluminum sheet “Quintet” has gained the greatest popularity.

Description and production standards

Metal sheets serve as decorative elements for furniture or pedestals; designers widely use this material.

The corrugated sheet is made from an alloy of aluminum, duralumin, and additionally copper and magnesium are added to its composition. The alloy is manufactured according to the requirements of GOST 21631–76. The rolled metal is made in the shape of a rectangle. The alloy undergoes a hardening process, the result is acquired strength and hardness, which are 7 times higher in comparison with the normal state of the metal.

The weight of the finished duralumin product is several times reduced in comparison with iron. This quality of aluminum makes it in demand in many industries and areas of human activity.

An aluminum alloy with additives makes it easy to apply a decorative or protective coating to the workpiece.

The aluminum billet gets its name because of its pattern, which is applied in the form of alternating strokes or stripes at a strict angle. The demand for aluminum corrugated sheet is due to the presence of corrugations and a wide range of applications.

The corrugated sheet has several variants of patterns applied to its surface. The strokes are applied and alternated in a checkerboard pattern.

  1. Diamond or diamond. The pattern is applied with a single protrusion and resembles the shape of a diamond.
  2. Duet. The drawing is applied in pairs, in the form of two strokes.
  3. Aluminum sheet corrugated Quintet. The drawing consists of five strokes applied parallel to each other.

Corrugated aluminum is produced in several grades, the most common alloys are::

  • Alloy of aluminum and 2% magnesium (not exceeding 4%) AMr2. A ductile and durable alloy that can be joined by welding. It is resistant to corrosion. The alloy was manufactured in accordance with GOST 4784–97.
  • Aluminum alloy with manganese added no more than 1.5%, AMn. The composition of the metal product due to its properties does not have sufficient strength, but is resistant to corrosion and very ductile. Manufactured in accordance with GOST 4784–97.
  • An aluminum alloy with the addition of copper from 2 to 5% and magnesium from 0.4 to 1.6% is called VD1. This product is characterized by high strength and ductility. The material can easily be treated with an anti-corrosion coating if necessary. Manufacturing is carried out in accordance with GOST 1131–76.

Sheets are available in two sizes: 1200*3000 mm and 1500*3000 mm. This sheet size is considered universal, however, if necessary and the availability of the manufacturer’s production capacity, the dimensions can increase and range from 4 to 6 meters. The manufacturer can reduce the sheet size to 2 or 2.5 meters.

The thickness of the product varies and ranges from 1.2 to 5 mm.

The weight of the product ranges from 15 to 40 kg.

Production methods

In addition to additional alloying additives, steel is classified according to production methods. Corrugated aluminum can be produced by hot or cold rolling with or without cladding.

Hot rolled

Hot rolling is carried out in several stages. Alloys are cast into ingots. The ingot is placed in a shaft furnace for subsequent melting and obtaining a liquid metal structure.

The liquid alloy is rolled out using high pressure and cylindrical shafts, and at the same time the riffles are applied.

The whole process takes place at high temperatures, due to which the sheet acquires excellent ductility, but loses strength.

The cost of the product will be lower than when producing cold-rolled sheets, because the production capacity involved is the least.

The hot-rolled corrugated product has a disadvantage: unequal thickness and width of the product, which completely depends on the uniform heating of the ingot during melting.

The thickness of the hot-rolled billet exceeds 3 mm.

Cold rolled

The method allows you to obtain fairly thin sheets with grooves. The alloy is not subjected to heating, but the production of sheets requires high power and technological equipment.

Thanks to the cold rolling method, it is possible to produce products of equal thickness and width.

Metal cladding

The cladding method is a process involving the additional application of a thin layer of pure aluminum to the sheet. During the cladding process, the corrugated workpiece becomes even more resistant to corrosion processes.

The cladding process on the finished product is marked with an additional letter to the sheet grade.

Normal cladding is denoted by the letter A. Thickened cladding is denoted by the letter U. The letter B denotes technological cladding of aluminum.

If there is no plating, there will be no additional letter in the marking.

Normal plating is mandatory when rolling duralumin alloys, because the composition of the alloy is susceptible to corrosion processes. The aluminum sheet is clad on both sides. The thickness of the aluminum layer is 2%, provided that the aluminum workpiece exceeds the thickness of 1.9 mm. If this thickness is less, then the cladding layer will be 4%.

Thickened plating will improve the appearance of the product and increase its anti-corrosion properties. A sheet with a thickness of no more than 1.9 mm is clad with a layer of aluminum of at least 8% of the total thickness of corrugated aluminum. If the thickness exceeds the 1.9 mm mark, the layer will contain 4% of the total thickness of the finished product.

Technological cladding serves as an additional layer that prevents the appearance of cracks and chips during the rolling process. This aluminum layer will not add anti-corrosion properties to the finished product. Its thickness does not depend on the thickness of the finished product and cannot exceed 1.5%.

Types of corrugated sheets with characteristic processing

To produce corrugated aluminum, various methods of mechanical and heat treatment are used. These methods make it possible to increase the performance qualities of the finished product, as well as improve their technical properties, this will increase the scope of application of the products.

The method and method of processing aluminum is marked with an additional letter.

Properties of corrugated aluminum

The positive properties of aluminum are its convex ribbed pattern. It improves the appearance of the product and physical performance. The corrugated sheet retains its geometry even during active use; due to its strength and ductility, it does not bend.

The most popular type of aluminum sheet is the Quintet corrugated sheet. It has a number of positive characteristics:

  1. Long-term corrosion resistance.
  2. The weight of the product is light.
  3. The material is environmentally friendly and durable to use.
  4. It can be used in various temperature and environmental conditions.
  5. High anti-slip properties of the finished product.

Application area

The physical properties of corrugated aluminum make it possible to use this material in the automotive, construction, aviation industries and many other areas of human activity.

The quintet is used indoors and outdoors. Due to its qualities, it is used for exterior decoration of premises. Aluminum serves as road fencing and an element in the manufacture of advertising billboards. Corrugated aluminum is used to construct non-slip walkways and bridges, as well as covered pedestrian crossings.

Corrugated sheets are widely used by designers in the design of premises in high-tech, avant-garde, loft and other modern design trends. It serves both for interior decoration details and for adding elements to furniture and interior items.

Using a quintet-type aluminum sheet, you can design partitions and columns inside the room. Screens for radiators, as well as countertops and suspended ceiling elements are made from it.

Aluminum sheet quintet is a suitable material for the manufacture of shelving for retail and medical enterprises, as well as for kitchen areas of child care institutions and catering establishments.

For the manufacture of footboards, steps and floors of public transport, the use of aluminum quintet will also be most suitable due to its anti-slip effect.

The quintet is often used for tuning cars and trucks. They additionally strengthen and protect those car parts that are exposed to aggressive environments. The most wear-resistant parts of the car body are also tuned.

The material is widely used in the manufacture of sea and river vessels due to its anti-corrosion properties.

A very popular type of rolled aluminum alloy these days is corrugated aluminum sheet. Its surface with a convex pattern and low weight have made this product highly popular among builders and designers.

1

The described rolled metal products in accordance with GOST 21631 are rectangular flat products, on the surface of which there is a convex image formed by protrusions located at a certain angle relative to each other. These projections are called grooves (sometimes grooves or grooves). It is they, combined with the light weight of the sheets, that give the rolled products unique properties.

Based on the number of grooves, corrugated aluminum sheet is classified into one of three types. If there are five riffles on its surface, the rental is called a quintet, two riffles are called a duet, and one is called a diamond.

The dimensions of the sheets according to the above GOST vary within the following limits:

  • length – from 200 to 600 centimeters;
  • width – from 100 to 150 centimeters;
  • thickness (note - this indicator does not take into account the height of the convexities of rolled aluminum) - no more than 4 millimeters (minimum - 1.5 millimeters).

Weight (theoretical weight per linear meter) is calculated using a special formula. It takes into account the largest and smallest geometric parameters of the product in terms of thickness and width, the density of the aluminum alloy from which the sheets are made. In practice, the weight of corrugated steel of different types according to GOST is calculated as follows:

  • add the minimum sheet thickness to the maximum and divide the resulting amount by two;
  • add its minimum value to the maximum width and again divide the resulting amount by two;
  • multiply these two numbers;
  • the product is multiplied by the density of the aluminum alloy and by 10 to the minus third power.

If the weight of sheets made from alloys V95, V95-2 and V95-1 is calculated, their density is assumed to be 2.85 g/cubic centimeter. When determining the weight of corrugated rolled products from other aluminum alloys, a special conversion factor is used. It is equal (data from GOST 21631) 0.947 for alloy AB; 0.937 for AMg3; 0.926 for AMg6; 0.94 for AMg2; 0.95 for AMg5.

The conversion factor for compositions D1, D12 and D16 is in the range of 0.954–0.982; for the AKM alloy it is 0.97; AMtsS, AMts and MM – 0.958; for 1915 – 0.972. Thus, knowing the width and thickness of the sheets, as well as the specific grade of aluminum alloy, it is not difficult to calculate the weight of the finished rolled product.

2

All sheets that are shown in the photo for this article, regardless of the number of grooves on their surface, are produced by rolling (hot or cold). According to GOST, hot rolling is used in cases where it is necessary to obtain products with a thickness of 3–4 millimeters. But cold technology is usually used for the production of thin rolled products.

The production of sheets occurs according to the following scheme:

  • 2-3 ton aluminum ingots are cast;
  • various preparatory operations are performed;
  • Hot rolling is performed, which may be followed by cold rolling.

After this, the products are subjected to heat treatment and finishing procedures. Methods of heat treatment and finishing of finished products are different. They depend on what alloys permitted by GOST are used to produce corrugated products.

Additional operations are usually carried out taking into account the technical conditions that are adopted at a particular plant, for example, TU 1-801-20-02 (quintet sheet with lentil grooves on one side of the rolled product), TU 1-3-71-90 ( rolled from AMg2), TU 1-3-112-75 (rolled from D16) and so on.

Most often, corrugated products are produced from aluminum alloys of the AMts and AMg brands. They have excellent anti-corrosion properties, so sheets made from them are used in all industries where this characteristic is of paramount importance (food industry, construction industry). AMts alloys, in addition, are deformed without problems and are easily joined by welding, have low weight and excellent mechanical properties.

Note that magnesium and aluminum alloys are not subjected to heat treatment. In this regard, their strength indicators are increased using cold cold hardening. This technique somewhat reduces the plasticity of the sheets, but significantly increases their hardness.

offers buy aluminum sheet fluted and aluminum sheet embossed wholesale and retail from our own warehouse inSt. Petersburg.

Our range consists of corrugated aluminum sheets and embossed aluminum sheets, various in size, alloy grade and delivery condition.

We are pleased to offer you delivery in St. Petersburg, the Leningrad region, as well as through transport companies to Moscow, regions of Russia and the CIS countries.

To select the optimal alloy corrugated aluminum sheet and embossed aluminum sheet- check out the table - Selection of alloy.

Corrugated aluminum sheet is a sheet of rolled aluminum metal with a convex pattern. Rifle Solid aluminum sheet is often used as anti-slip flooring on stairs, vehicles and refrigeration plants.

TU 1.804.432.2006 (European standard EN 1386-2007 ) regulate the mechanical properties depending on the alloy and the state of delivery, the permissible maximum deviations in the geometric dimensions of corrugated aluminum sheets, as well as the rules for their acceptance, and GOST 4784-97 and GOST 11069-01 regulates the chemical composition of alloys used in the production of pcorrugated aluminum sheets.

Corrugated Aluminum Sheets used as cladding panels in and interior and exterior, in production and directly in the food industry, in design or decoration, as well as for car tuning, as flooring (carousels, attractions), etc.

The alloys used in the production of corrugated aluminum sheets have high spark safety, which is very important in many areas of application of this aluminum rolled product.

The good operational, physical and chemical properties of corrugated aluminum sheet determine a very high demand for it from enterprises in St. Petersburg.

  • Corrugated aluminum sheet Quintet, Diamond, Duet
  • Corrugated aluminum sheet “rice grain”
  • Embossed aluminum sheet (“orange peel”)

    Corrugated Aluminum Sheet

    Harmonious combination of functional and decorative qualities

    Along with strip, profile, rod and other semi-finished products made of aluminum and its alloys, aluminum sheet. Its use allows solving an extremely wide range of technical problems. Approximately 40% of all aluminum produced in the world is used in sheet form. Corrugated sheets occupy an important place in the range of aluminum sheets.

    Corrugated Aluminum Sheet is a flat semi-finished product of rectangular cross-section, which received its name due to the presence on the surface of a convex pattern formed by regular rows of protrusions located at an angle to each other. This is the so-called riffles, literally translated from English - gutters, grooves.

    Manufacturing technology

    Corrugated aluminum sheet is made by hot or cold rolling, as a result of which a pattern is extruded onto its surface. Rolling is one of the main methods of metal forming, which makes it possible to obtain products of various shapes, including thin and thick sheets. In addition, it helps improve the mechanical properties of metals.

    The cold forming method produces durable thin sheets with a high-quality surface. By hot rolling method - corrugated aluminum sheet of greater thickness.

    The production scheme for sheets made of aluminum and its alloys consists of several stages:

    • casting of ingots (for rolling sheets and plates, ingots weighing several tons are used);
    • preparatory operations;
    • hot rolling;
    • cold rolling;
    • heat treatment;
    • finishing operations.

    Manufacturers of aluminum corrugated sheets refer to various regulatory and technical documents. Here are just some of them:

    • “TU 1-804-432-2006. Sheets and strips of aluminum alloys with a relief surface";
    • “TU 1-3-112-75. Corrugated sheets made of alloy D16";
    • “TU 1-3-71-90. Corrugated sheets made of AMg2 alloy;
    • “TU 1-3-87-90. Sheets made of aluminum alloy grade AMg2 with lentil corrugation";
    • “TU 1-801-20-02. Sheets with one-sided lentil corrugation “quintet”.

    Along with domestic products, foreign-made products manufactured in accordance with EN, ASTM and other standards are presented on the market.

    What grades of aluminum and its alloys are used for the manufacture of corrugated aluminum sheets

    The properties of aluminum and its alloys largely determine the characteristics of corrugated aluminum sheets. A significant part of them are made from aluminum and magnesium alloys. These are ductile, well weldable, resistant to corrosion, and have decent (especially compared to the weight of aluminum, which is several times lighter than steel) mechanical properties. Such alloys include AMg2 (AMg2R, AMg2M, AMg2N2, AMg2NR, AMg2N2R) and AMg3 (AMg3M, AMg3N, AMg3N2, AMg3NR AMg3N2R). As well as their foreign analogues - EN AW 5251 and EN AW 5754, respectively.

    Since aluminum-magnesium alloys are not strengthened by heat treatment, work hardening (cold pressure treatment) helps improve the mechanical properties of corrugated sheets made from them. It significantly increases strength characteristics - hardness and strength. True, you have to pay for this with some reduction in ductility.

    Alloys of the aluminum-copper-magnesium system are used in large quantities for the production of corrugated aluminum sheets.

    Sheets made of aluminum wrought alloy 1105 (1105AT, 1105AM, 1105AN) are distinguished by ease of machining, good tolerance to low temperatures and fracture toughness. Thanks to cladding, it is possible to bring the low corrosion resistance, which is problematic for duralumin, to the required level. Various heat treatment methods help to achieve increased ductility of 1105 sheets.

    For the manufacture of corrugated sheets, other aluminum wrought alloys with a high content of copper and magnesium are used - VD1 (VD1NR, VD1AM, VD1AN) and D1 (D1AMP, D1NR).

    Another material for the manufacture of aluminum corrugated sheets is the alloy of the aluminum-manganese system AMts. Thanks to its high resistance to corrosion, AMts corrugated sheets can be used where this quality is especially important - in construction, the chemical and food industries. The AMts alloy welds well and is easily deformed, both in a heated and in a normal state.

    In aluminum for sheet billets of AD0 grade (AD0N2, AD0NR), the mass fraction of aluminum is at least 99.50%; the introduction of titanium up to 0.15% is allowed; contains iron and silicon in small quantities.

    What do letters and numbers say?

    To the combination of letters indicating the grade of the alloy, letters are added that inform about the state of delivery, in this case of corrugated sheets:

    • M - annealed (soft; after annealing the metal becomes more ductile and malleable);
    • N - cold-hardened;
    • H2 - semi-hardened;
    • T - hardened and naturally aged;
    • T1 - hardened and artificially aged;
    • P - made of refined aluminum.

    Thus, sheets made of alloys 1105 and VD1 can be supplied:

    • 1105AT, VD1AT - hardened and artificially aged;
    • 1105AM, VD1AM - annealed;
    • 1105AN, VD1AN - cold-hardened.
    • VD1AN2 - semi-hardened;
    • VD1NR - made of purified alloy, cold-worked.

    The presence of the letter “A” indicates that this is a corrugated aluminum sheet with normal plating. (Clading is the application of a thin layer of metal to the surface of products to increase corrosion resistance). Unclad sheets are not specifically designated.

    About sizes and embossed sheets

    Along with corrugated aluminum sheet, embossed sheets are produced in a wide range of colors and various textures (among the most common are “orange peel” and “wave”). The embossing depth is usually 0.08-0.25 mm.

    Embossing - obtaining relief images on the surface by extrusion, makes relief and embossed aluminum sheets a kind of “intersecting sets”. But the existence of “dividing lines” is obvious. Embossed aluminum sheets place emphasis on design, including color. Therefore, embossed sheets with a thickness of only a few tenths of a mm can be offered. There is no need to talk about corrugations with such a thickness of the base. In the purpose of corrugated aluminum sheets, functionality prevails, although manufacturers also always keep their appearance in mind.

    The corrugated aluminum sheets presented in the assortment of suppliers, as a rule, have a thickness from 1.2 to 5 mm - 1.2, 1.5, 2.0, 2.5, 3.0, 4.0, 5.0 mm. The height of the relief (convexities of the pattern) is taken into account separately.

    The most popular sizes of embossed aluminum sheet are 1200x3000 and 1500x3000 mm. But there are others: 1000x2000, 1250x2500, 1200x6000, 1500x4000, 1500x6000.

    Pattern and color

    In corrugated aluminum sheets, the minimum height of the relief (pattern convexities) is 0.1-0.3 of the nominal base thickness, but not less than 0.5 mm.

    Corrugated aluminum sheets are distinguished by the number and shape of convex elements. If we talk about “standard” corrugation, then the fragments of the pattern are formed by one, two or five identical corrugations. Since the riffles are similar in shape to lentils, the term “lentil corrugation” is used (including in technical documentation). In sheets with lentil corrugations, the distance between the corrugations is taken to be 20, 25 or 30 mm.

    The pattern may consist of single riffles located perpendicular to each other (Lentil sheet). If the riffles are arranged two side by side, it is a “Duet” sheet; if there are five, it is a “Quintet” corrugated aluminum sheet.

    In Diamond or Diamond sheets (sometimes spelled Brilliant), the grooves are shaped to resemble a stylized diamond crystal.