Rhombic corrugated sheet: characteristics, production, GOST

Corrugated sheet is a metal product used for internal and external construction work. It is a steel sheet with a three-dimensional pattern on one side. The characteristics of the original rolled products are determined by GOST 19903-2015. The dimensions and other properties of corrugated sheets with diamond and lentil patterns are regulated by GOST 8568-77. Rolled steel with lentil and rhombic corrugation has an anti-slip surface, which is important for ensuring the safety of personnel in industrial and agricultural enterprises, in warehouses, and passengers in transport.

Types of relief sheets

Such metal products are produced by hot deformation on mills using rollers, which produce a smooth surface on one side and a corrugated surface on the other. In the mass version, carbon steels St0, St1, St2, St3 of various degrees of deoxidation are used for these products. Rolled products for use in conditions where decorative, hygienic qualities, and corrosion resistance are important, are made from stainless steels AISI 321, AISI 201, AISI 316, AISI 430.

In addition to the material used in production, these sheets differ in:

• the type of riffles and the option of their placement;
• the thickness of the workpiece used for the manufacture of corrugated sheets;
• number of projections per 1 m
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Products meet the following requirements:

• the height of the corrugations is 10-30% of the thickness of the original sheet or rolled products; in metal products with a thickness of 5 mm or more, the height of the corrugations must be at least 1 mm;
• the dimensions of the diagonals of the rhombuses are in the range of 25-30x60-70 mm;
• the distance between the lentils is 20, 25, 30 mm.

Corrugated metal sheet dimensions:

• length – 1.4-8.0 m in increments of 50 mm;
• The width of the finished corrugated sheet is 0.6-2.0 m, pitch is 50 mm.

1m weight table

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corrugated steel sheet with lentil corrugation or diamond pattern

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Hot rolled sheets GOCT 19903-74

The technological process of manufacturing hot-rolled sheet steel, in contrast to cold-rolled steel, has fewer stages, which determines a lower accuracy class. However, the lower manufacturing accuracy is compensated by relatively low prices and a large range of sizes, which makes hot-rolled sheet one of the most popular products on the rolled metal market.

Size range

According to GOCT 19903-74, hot-rolled steel is produced in the following sizes, in sheets:

• thickness from 0.4 to 160 mm;
• width from 500 mm to 3800 mm;
• length from 710 to 12000 mm.

• thickness: from 1.2 to 12 mm;
• width from 500 to 2200 mm;
• roll weight no more than 20 tons;
• internal diameter of the roll from 650 to 1000 mm;
• The length of the sheet in a roll is not standardized.

Moreover, the limit values ​​for the width of the sheet are set depending on its length and depend on the technical capabilities of the rolling mill, therefore in some cases they must be agreed with the manufacturer.

Characteristics regulated by the assortment:

Types of corrugation patterns

Manufacturers offer the following types of patterns:

• "Diamond" . This is the simplest pattern, consisting of grooves that are located perpendicular to each other.
• "Duet" . This pattern differs from the previous one in the double arrangement of riffles.
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• "Quartet" and "Quintet" . These are complex designs that have a decoratively attractive appearance.

INFORMATION DATA

1. DEVELOPED AND INTRODUCED by the USSR Ministry of Ferrous Metallurgy

2. APPROVED AND ENTERED INTO EFFECT by Resolution of the State Committee of Standards of the Council of Ministers of the USSR dated April 13, 1977 No. 926

3. INSTEAD GOST 8568-57

4. REFERENCE REGULATIVE AND TECHNICAL DOCUMENTS

5. The validity period was lifted according to Protocol No. 5-94 of the Interstate Council for Standardization, Metrology and Certification (NUS 11-95/

6. EDITION with Amendments No. 1, 2, 3, 4, approved in October 1978, January 1981, June 1987, June 1989 (IUS 11-78, 1-81, 11-87, 11 -89/

The sheet is corrugated. Lentils. Rhombus.

GOST 8568-77

The standard applies to hot-rolled steel sheets with one-sided rhombic and lentil corrugation for general purposes.

The shape, dimensions, maximum deviations and weight of 1 m of sheet with rhombic and lentil corrugation must correspond to those indicated in Fig. 1, 2

Corrugated steel is produced in sheets and rolls with one-sided rhombic or lenticular corrugation.

Rolled sheets by thickness are produced:

high accuracy - A,

normal accuracy - V.

Examples of symbols:

Hot rolled sheet made of St3sp steel with one-sided rhombic corrugation, size 3.0x1000x2000 mm, normal thickness accuracy, improved flatness with rolled edge:

Sheet rhombus V-K-PU-3.0x1000x2000 St3sp

GOST 8568-77

The same, with lentil one-sided corrugation:

Lentil leaf V-K-PU-3.0x1000x2000 St3sp

GOST 8568-77

Hot-rolled steel grade St3sp with one-sided rhombic corrugation, size 3.0x1000 mm, high precision, with rolled edge:

Roll rhombus A-K-3.0x1000 St3sp

GOST 8568-77

The same, with lentil one-sided corrugation:

Lentil roll A-K-3.0x1000 St3sp

GOST 8568-77

Corrugated sheets in the warehouse of the MetalTechService Company are presented in the following assortment:

Corrugated steel sheet GOST 8568-77 . Corrugated steel is produced in sheets and rolls with one-sided rhombic or lenticular corrugation.

There are two types of corrugated sheet :

The height of the corrugations on the sheets should be 0.2 - 0.3 of the thickness of the base of the sheet, but not less than 0.5 mm.

Sheets with rhombic corrugation are made with diamond diagonals (25-30) x (60-70) mm. The configuration of the corrugations and the location of the large diagonals of the diamond along or across the sheet are set by the manufacturer. Pzhya with lentil corrugation are made with a distance between corrugations of 20, 25 m 30 mm.

Sheet metal with lentil corrugation A-1-PV-StZsp2-6x600x6000 TV 14-2-818-88 with a rolled edge, one-sided corrugation is made of carbon steel with a chemical composition in accordance with GOST 380. The height of the reefs on the strip is 1.5 mm at a distance of 40 mm from the side edge. Sheets are manufactured in widths from 600 to 2200 mm and lengths from 1400 to 8000 mm with a gradation of 50 mm.

By agreement between the manufacturer and the consumer, it is possible to produce sheets of other sizes.

Depending on the purpose, sheets are manufactured:

• measured length;
• multiple measured length;
• measured length with a remainder of no more than 10% of the batch weight;
• a multiple of the measured length, amounting to no more than 10% of the mass of the batch;
• of unmeasured length.

The remainder is considered to be sheets of length within the unmeasured range that remain when cutting into dimensional and multiples of dimensional.

Corrugated sheets are produced at enterprises from carbon steel grades BStO, BSt1, BSt2 and BStZ in accordance with GOST 8568-77. Corrugated sheet is a steel sheet on the smooth side of which a certain pattern is formed. Corrugated sheets are produced with a width of 600-2200 mm, a length of 1400-8000 mm and thickness from 2.5-12.0 mm. Corrugated sheets are made in sheets and rolls; they differ in steel grade, type of pattern and overall dimensions of the sheet. In our warehouse we have corrugated sheets with different pattern heights from 0.5 mm, while the distance between the corrugations is from 20 to 35 mm. The production of corrugated sheets can be with an indication of the dimensions required by our consumers, also with an indication of the type of pattern, the height of the pattern.

Applications of Metal Corrugated Sheet:

This type of sheet metal is very often used as an anti-slip floor covering. It is also often used for the manufacture of steps and decking, interior decoration, and for setting up fencing according to safety requirements.

The sheet is corrugated and has a wide range of applications . It is used as a floor covering, its structure prevents slipping, and molds are made from corrugated sheets for the production of reinforced concrete products that require corrugation, for example, such as road slabs.

MetalTechService supplies sheets with lentil and diamond corrugations from the warehouse.

Our company’s delivery terms are beneficial for the client for several reasons:

• low price,
• We provide cutting services,
• cutting, drilling.

This offer is not a public offer and is for informational purposes only. Please check product availability and prices with managers.

You can buy corrugated sheets in one of the following ways:

Supply contract.

Enterprise card.

Contact Information

620102, Ekaterinburg, st. Volgogradskaya, 193, office. 309

Phones:

+7 +7 +7

Email:

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Cold rolled sheets GOCT 19904-90

Cold-rolled steel sheets are produced by repeated cold-rolling of hot-rolled coils (otherwise known as rolling). Additional processing leads to an increase in the cost of products, but, at the same time, provides a higher quality of surface treatment and improved mechanical properties: tensile strength, yield strength for permanent deformation, elongation at break.

Cold-rolled sheets are supplied in rolls and sheets, both with cut and unedged edges. Geometric parameters, permissible deviations, accuracy classes for cold-rolled steel are established by the GOCT 19904-90 assortment.

Size range

Also, by agreement with the customer, delivery of special sizes is allowed, which is stipulated in the agreed specification.

Characteristics regulated by the assortment:

Technical specifications according to GOST 8568-77

Corrugated sheet GOST 8568-77 with rhombic or lentil corrugation is produced:

• made of carbon steel of ordinary quality
• from carbon and low-alloy structural steels, classified by yield strength - C235, C245, C255, C275, C285, C345, C345K, C440, C590, C590K.

Sheets are produced to ensure the required properties (for this purpose, rolled products can be subjected to heat treatment):

• high flatness (the type of which can be specified in the order)
• with resistance to delamination.

According to GOST 8568, products are manufactured with corrugations with a height of 0.1 - 0.3 from the thickness of the base of the sheet, but not less than 0.5 mm:

• rhombic corrugation - with diamond diagonals (25-30) x (60-70) mm
• lenticular corrugation - with a distance between corrugations equal to 20, 25 or 30 mm

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Application areas of corrugated sheet

This rolled metal is used in construction, industry and everyday life:

• For external and internal finishing of vertical enclosing structures - walls, partitions.
• At industrial enterprises, warehouse areas, as well as in other places with an increased risk of injury for the construction of passages, ramps, observation platforms, and the manufacture of steps. Such metal products are in demand at such critical facilities as oil platforms and power plants.
• In the automotive industry - for the production of non-slip coatings.
• In road construction - for the construction of bridges and crossings.
• Metal products made from stainless steel are used to solve design problems in construction and architecture.

Classification and features of medium-carbon steel grades

Application of expanded metal sheets for staircase equipment

Dimensions, weight and calculation of expanded metal sheets

Application

The sheet is characterized by high strength and wear resistance. The steel alloy is resistant to corrosion and mechanical stress. To improve the technical properties of the product, galvanizing is used. Corrugated sheets are used as flooring in non-residential buildings. Sheets with lentil corrugations, made in accordance with GOST standards, are used for finishing building structures, ramps, stairs, paths and bridges. Steel products are used for lining refrigerators and freezers.

For finishing industrial premises, sheets with a thickness of at least 4 mm are used. Products used for exterior and interior decoration are thinner. The rolled products are stored in the cabins of freight and passenger elevators. The use of anti-slip corrugated sheets reduces the likelihood of industrial injuries and prevents accidents.

Weight m2 of sheets according to GOST 8568

In order to calculate the cost of 1 sheet, you need to know the weight of the product of the required cutting. To calculate, we will use data on the theoretical weight of 1 m2 of rolled steel depending on the thickness of the sheets (these values ​​are defined in GOST 8568):

Weight of hot and cold rolled steel sheets

The theoretical weight of the sheet (kg) can be calculated using the formula: 7.85 × a × b × h, where a is the width of the sheet, m; b—sheet length, m; h—sheet thickness, mm.

For example, a standard sheet with a thickness of 1.2 mm, a width of 1.25 and a length of 2.5 m has a weight of:

The weight of one square meter in kg is calculated by the formula: weight of 1 m² (kg) = 7.85 × h, where h is the thickness of the sheet in millimeters.

The actual weight may differ from the calculated one, because... the maximum deviations allowed according to GOCT 19903-74, in total, can lead to deviations in weight.

Steel sheets with rhombic and lentil corrugation. Specifications

Applications to GOST

Change No. 1 to GOST 8568-77

The text of the amendment is integrated into the text or description of the standard.

Change No. 2 to GOST 8568-77

The text of the amendment is integrated into the text or description of the standard.

Change No. 3 to GOST 8568-77

The text of the amendment is integrated into the text or description of the standard.

Change No. 4 to GOST 8568-77

The text of the amendment is integrated into the text or description of the standard.

Amendment to GOST 8568-77

Amendment to GOST 8568-77

Steel sheet

Steel sheet allows you to optimally, with minimal metal consumption, solve structural problems of any complexity.

Rolled sheets can be divided according to the following criteria:

• according to production technology
  : cold-rolled, assortment according to GOCT 19904-90 and hot-rolled, assortment according to GOCT 19903-74;
• according to geometric parameters (sheet thickness)
  on thin sheet, manufactured in accordance with technical specifications in accordance with GOST 16 523-97, and thick sheet, technical specifications in accordance with GOCT 14637-89;
• according to the characteristics of the treated surface
  : smooth or corrugated (assortment and specifications according to GOCT 8568-77).

What is a diamond corrugated sheet?

Bumps on metal sheets, which are formed using corrugations, are not a decorative method, although such products have an attractive appearance. A corrugated surface, when compared to a smooth one, can provide significantly better grip on objects that come into contact with it. This property, in fact, determines the main purpose of sheets on which corrugation is specially applied.

Shape and dimensions of rhombic corrugation

Sheets with rhombus-shaped corrugations can be produced in various standard sizes, namely:

• thickness, measured without the height of the ribbed profile, is 2.5–12 mm;
• width – 600–2200 mm;
• the length of products, the pitch of standard standard sizes of which is 50 mm, is 1400–8000 mm.

The most popular size among consumers of this product is 1500x6000 mm.

Permissible deviations of dimensions and weight according to GOST (click to enlarge)

The corrugation on the surface of such sheets consists of intersecting lines. The dimensions of the diagonals of the rhombuses obtained by these intersections can be in the range of 25–30 and 60–70 mm. Meanwhile, these dimensions are not fixed; by agreement between the customer and the manufacturer, they can be changed, as well as the location of the pattern on the surface of the sheet.

The "Rhombus" sheet is successfully used in many areas. Elements of staircase structures, bridges and passages are made from corrugated metal sheets, they cover the floors in industrial facilities, and they are used to equip escalators in the metro and large shopping centers. In addition, products with corrugation in the form of diamonds are used to reinforce floors, wall partitions are erected from them, and containers are made that are used not only in industry, but also in agriculture.

The decorative characteristics of this material make it suitable for the design of various architectural structures, which is actively used by modern designers. In private construction and for design purposes, corrugated metal sheets of small thickness are used, and for industrial facilities thicker products are purchased.

Weight of corrugated sheet depending on the thickness of the base

Since Rhombus corrugated sheets are made of metal, they are distinguished by high strength, and if stainless steel is used as such metal (which is allowed by GOST requirements), then they also have exceptional corrosion resistance. The material of such sheets has not only the ability to withstand significant loads, but also ductility and good workability. These characteristics of metal sheets with rhombic (and any other) corrugation significantly expand the scope of their application.

In the domestic sphere, Rhombus corrugated sheets have also found wide application. For example, they are used to construct fences and various enclosures, to make gates and wickets, casings and containers for various purposes.

Meanwhile, it should be kept in mind: if corrugated sheets of ferrous metal are used for the manufacture of structures, they must be coated with protective compounds so that they do not lose their visual appeal and other characteristics after a short period of operation.