Products

KONDOR DOO

Products

  • In our assortment and stock of 30,000 tons, you can find hot-rolled, cold-rolled, and pickled and oiled sheets, as well as rolls and boards.
  • Before we present you our offer, we would like to tell you something more about the very process of creating these top-quality products that we put on the market.
  • Before we present you our offer, we would like to tell you something more about the very process of creating these top-quality products that we put on the market.
  • When choosing rolled sheet metal as a material for your project, it is very important to know the differences between these types of sheet metal, because the success of your project depends on their specificities.
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Hot-rolled sheets

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ASTM A36 & EN 10025-2

Hot-rolled steel sheets are often used in a variety of industries, including construction, automobile manufacturing, and appliance manufacturing. Several standards have been created to guarantee consistency and quality in the creation and application of hot-rolled steel sheets.

The ASTM A36 specification is one of the most widely accepted specifications for hot-rolled steel sheets. The ASTM A36 specification sets minimum mechanical properties for steel sheets and coils, including yield strength, tensile strength, and elongation. It also determines the chemical composition of the steel, including the amounts of carbon, manganese, phosphorus, sulfur, and other elements.

The EN 10025-2 standard is another important one for hot-rolled steel plates. This European standard covers hot-rolled steel sheets and coils, as well as non-alloy structural steel. The criteria for the chemical composition, mechanical characteristics, and tolerances of hot-rolled steel sheets and coils are specified in the EN 10025-2 specification.

Guaranteed quality

  • Depending on the purpose and application, numerous additional specifications and rules may also apply to hot-rolled steel sheets. For example, the International Organization for Standardization (ISO) has developed standards for the testing and certification of steel products, while the American Petroleum Institute (API) has set standards for the use of hot-rolled steel sheets in the oil and gas industry. Overall, the standards for hot-rolled steel sheets are designed to guarantee that the material is of consistent quality and meets the requirements of different sectors and applications.
  • Several types of hot-rolled steel sheets are available on our market, each of which has its properties and specific uses. It's important to note that different countries and regions may have different standards or designations for steel types, so it's always best to consult with us to make sure you're using the right type of steel for the job you want.
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Use of hot-rolled sheet

With this type of product, there is less control over the finished shape of the hot-rolled steel as it shrinks slightly during cooling. Therefore, it is often used in processes that do not require extremely tight tolerances. We will list some of the common applications of this type of sheet:
  • - Agricultural machines,
  • - Auto components (e.g. frames and rims),
  • - Construction components,
  • - Railway machinery (e.g. rails and wagon components).

Our offer of hot-rolled sheets

We offer the following types of hot-rolled sheets, with thicknesses from 1.5 mm to 100 mm, in widths of 1000 mm, 1250 mm, 1500 mm, and 2000 mm.

Hot-rolled steel sheet DD11 is a low-carbon product that is rolled at high temperatures to produce a smooth surface and excellent mechanical properties. It is one of the most commonly used types of hot-rolled steel in various industries, including automotive or construction.

The designation DD11 indicates that this steel sheet has a minimum yield strength of 170-360 MPa and a minimum tensile strength of 440 MPa. In addition, it has excellent weldability and formability, making it ideal for use in a wide range of applications.

According to its physical characteristics, hot-rolled steel sheet DD11 usually has a thickness between 1.5 mm and 12.5 mm and a width of up to 2 meters. It is often available in rolls or boards cut to length.

Hot-rolled steel sheet S235JR is another commonly used low-carbon steel sheet, often referred to as mild steel. It is rolled at high temperatures to obtain a smooth surface and excellent mechanical properties. This type of steel is widely used in construction, machinery manufacturing, and other industrial applications.

The designation S235JR indicates that this steel sheet has a minimum yield strength of 235 MPa and a minimum tensile strength of 360-510 MPa. It also has good weldability and formability, making it suitable for a variety of manufacturing processes.

In terms of its physical characteristics, S235JR hot-rolled steel sheet typically has a thickness between 1.5 mm and 20 mm and a width of up to 2 meters. It is often available in rolls or boards cut to length.

Hot-rolled steel sheet S355MC is a high-strength low alloy (HSLA) steel that is rolled at high temperatures to produce a smooth surface and excellent mechanical properties. This type of steel is commonly used in structural and engineering applications, such as the construction of bridges, buildings, and offshore structures.

The designation S355MC indicates that this steel sheet has a minimum yield strength of 355 MPa and a minimum tensile strength of 430-550 MPa. It also has good weldability and formability, making it suitable for a variety of manufacturing processes.

In terms of its physical characteristics, S355MC hot-rolled steel sheet typically has a thickness between 1.5 mm and 20 mm and a width of up to 2 meters. It is often available in rolls or boards cut to length.

Hot-rolled steel sheet S355J2C+N is a high-strength low alloy steel (HSLA) that is rolled at high temperatures to produce a smooth surface and excellent mechanical properties. This type of steel is commonly used in construction, machinery manufacturing, and other industrial applications.

The designation S355J2C+N indicates that this steel sheet has a minimum yield strength of 355 MPa and a minimum tensile strength of 470-630 MPa. The letter „C“ indicates that it is cold-formed steel, while the letter „N“ indicates that it is normalized steel. Normalizing is a heat treatment process that improves the toughness and ductility of steel.

According to its physical characteristics, hot-rolled steel sheet S355J2C+N usually has a thickness between 1.5 mm and 20 mm and a width of up to 2 meters. It is often available in rolls or boards cut to length.

Hot-rolled sheet steel P265GH is a non-alloy pressure vessel steel that is rolled at high temperatures to produce a smooth surface and excellent mechanical properties. This type of steel is usually used in the production of boilers, or pressure vessels.

The designation P265GH indicates that this steel sheet has a minimum yield strength of 265 MPa and a minimum tensile strength of 410-530 MPa. Also, it is characterized by good weldability and high resistance to high temperature and high-pressure conditions.

In terms of its physical characteristics, hot-rolled steel sheet P265GH usually has a thickness between 1.5 mm and 12.5 mm and a width of up to 2 meters. It is often available in rolls or boards cut to length.

Cold-rolled sheet

Appearance and precision

Cold-rolled steel sheets are a type of flat steel product that is rolled at or slightly below room temperature to produce a smooth, shiny surface and improve the mechanical properties of the final product. This process also results in a thinner, more uniform product with tighter dimensional tolerances than hot-rolled steel sheets.

Hot-rolled steel that has been cooled by the cold-rolling process travels through a further set of rolls at room temperature. It takes much more effort to compress the material into the desired shape because it is no longer hot and pliable. Although this method can be more expensive and labor-intensive than hot rolling, this process can produce parts with tighter dimensional tolerances and better surface quality.

Cold-rolled steel sheets have a variety of applications, including automotive, appliance, construction, and more. The improved surface finish and uniform thickness make it ideal for applications where appearance and precision are important.
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layer of protective material

Cold-rolled steel sheets are usually produced in thinner varieties than hot-rolled steel sheets, ranging from 0.4 mm to 3.2 mm. The width of the leaves can vary but usually ranges from 1 to 2 meters. The most common grades of cold-rolled steel sheets include commercial-grade (CR), drawing-grade (DQ), deep drawing-grade (DDQ), and extra deep drawing-grade (EDDQ).

It is important to note that cold-rolled steel sheets can be susceptible to rust and corrosion, so they are often coated with a layer of protective material, such as zinc or tin, through a process called electroplating.

Several types of cold-rolled steel sheets are available on our market, each of which has its properties and specific uses. It's important to note that different countries and regions may have different standards or designations for steel types, so it's always best to consult with us to make sure you're using the right type of steel for the job you want.

Advantages of cold-rolled sheet

Due to the specificity of its production, which implies more complex processing, and therefore better quality, cold-rolled steel has several advantages compared to hot-rolled steel.
  • Higher strengthCompared to hot-rolled steel, cold-rolled steel can exhibit strength that is up to 20% higher, making it more suitable for use in high-stress applications.
  • Better surface finishCold-rolled steel parts and goods usually have a shiny, smooth surface free of rust and scale.
  • Greater precisionUnlike hot-rolled steel, which shrinks after forming, cold-rolled steel does not shrink. This feature allows the production of highly accurate components with minimal or no additional processing.

Use of cold-rolled sheet

Cold-rolled steel is used when tighter tolerances and superior finishes are required. This implies that cold-rolled steel is used in the production of:

  • - Appliances for the home,
  • - Metal furniture,
  • - Mechanical parts.

Our offer of cold-rolled sheets

U ponudi imamo sledeće vrste hladno valjanih limova, debljine od 0,4 mm do 3 mm, u širinama od 1000 mm, 1250 mm i 1500 mm:

Cold-Rolled Steel Sheets DC01 is a type of low-carbon steel product that is cold-rolled to obtain a smooth, shiny surface and improved mechanical properties. This type of steel is commonly used in a variety of applications, including automobiles, appliances, construction, and more.

The DC01 designation indicates that this steel sheet has a low-carbon content, with a maximum carbon content of 0.12%, and is cold-rolled to produce thicknesses ranging from 0.4mm to 3.2mm. It also has good formability, weldability, and surface quality, making it suitable for a range of manufacturing processes.

In addition to the low-carbon content, DC01 steel sheets may contain other alloying elements, such as manganese and phosphorus, to improve their mechanical properties. This type of steel is often used in the production of parts and components that require good cold-forming characteristics and high surface quality, such as car body panels and home appliances.

Cold-Rolled Steel Sheets DC03 is a type of low-carbon steel product that is cold-rolled to produce a smooth, shiny surface and improved mechanical properties. This type of steel is commonly used in a variety of applications, including automotive, appliance, construction, and other industries.

The designation DC03 indicates that this steel sheet has a low-carbon content, with a maximum carbon content of 0.10%, and is cold-rolled to produce thicknesses ranging from 0.4mm to 3.2mm. It also has good formability, weldability, and surface quality, making it suitable for a range of manufacturing processes.

In addition to the low-carbon content, DC03 steel sheets may contain other alloying elements, such as manganese and phosphorus, to improve their mechanical properties. This type of steel is often used in the production of parts and components that require good cold-forming characteristics and high surface quality, such as car body panels and home appliances.

Compared to DC01 steel sheets, DC03 steel sheets have slightly higher strength and improved deep drawing properties, making them suitable for more complex forming operations.

Cold-Rolled Steel Sheets DC03 is a type of low-carbon steel product that is cold-rolled to produce a smooth, shiny surface and improved mechanical properties. This type of steel is commonly used in a variety of applications, including automotive, appliance, construction, and other industries.

The designation DC03 indicates that this steel sheet has a low-carbon content, with a maximum carbon content of 0.10%, and is cold-rolled to produce thicknesses ranging from 0.4mm to 3.2mm. It also has good formability, weldability, and surface quality, making it suitable for a range of manufacturing processes.

In addition to the low-carbon content, DC03 steel sheets may contain other alloying elements, such as manganese and phosphorus, to improve their mechanical properties. This type of steel is often used in the production of parts and components that require good cold-forming characteristics and high surface quality, such as car body panels and home appliances.

Compared to DC01 steel sheets, DC03 steel sheets have slightly higher strength and improved deep drawing properties, making them suitable for more complex forming operations.

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Pickled and oiled steel sheet

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hrpo

Hot-rolled galvanized sheet (HRPO) is a type of flat steel product that has been treated in a series of steps to remove oxide scale formed during the hot-rolling process and then coated with oil or similar material to prevent rusting. This process results in a product with a smooth surface and improved corrosion resistance.

The tinned sheet is produced in the process of pickling and lubrication, during which oxides and/or scale are removed from the surface of the material. This process involves immersing the sheet in a solution with dilute sulfuric or hydrochloric acid. The material is then oiled for improved oxidation protection. This process produces a finished product with a surface finish that is far better than standard hot-rolled material.

Appearance and durability

Pickled and oiled steel sheets are commonly used in a variety of applications, including automotive, construction, and industrial equipment. Improved surface finish and corrosion resistance make it ideal for applications where appearance and durability are important.

Pickled and oiled steel sheets are usually produced in thicker gauges than cold-rolled steel sheets, ranging from 1.6 mm to 6 mm thick. The width of the boards can vary but usually ranges from 1 to 2 meters. The most common grades of annealed steel sheets include commercial-grade (CQ), drawn-grade (DQ), and deep-drawn grade (DDQ).

Several types of pickled and oiled steel sheets are available on our market, each of which has its properties and specific uses. It's important to note that different countries and regions may have different standards or designations for steel types, so it's always best to consult with us to make sure you're using the right type of steel for the job you want.
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Advantages of pickled and oiled steel sheet

The stone-free surface is suitable for shaping, bending, stamping, and painting the product. Pickled and oiled steel sheet is durable and has improved formability while providing a cleaner paint surface with a limited barrier to rust formation.
  • Better paintingHot-rolled pickled and oiled products make painting easier because the surface is free of impurities such as stains and rust. This allows you to achieve glossy finishes with less paint and achieve better paint adhesion that avoids chipping.
  • Improved bending, forming, and other processingPickled and oiled steel sheets have improved workability, and therefore improved bending, forming, and stamping capabilities.
  • Improved weldingSince the pickled sheet has a scale-free surface, welding is significantly easier and the quality of the entire work process is improved. With this product, the welding time is shortened. Pickled and oiled sheets do not require pre-cleaning due to a thick layer of oil from electrostatically applied microns that burn during welding.
  • Easier laser processingBy using pickled and oiled steel sheet, you can improve laser usage and speed up laser burn by approximately 15%. With pickled and oiled steel sheet, you can achieve closer tolerances with less waste between parts and achieve consistent results.

Use of pickled and oiled steel sheet

Hot-rolled pickled and oiled steel is used for a variety of purposes. Typical applications and industries include the following:
  • - Tanks,
  • - Protective fences,
  • - Device panels,
  • - Car industry,
  • - Agriculture,
  • - Heavy equipment.

Our offer of pickled and oiled steel sheets

We offer pickled and oiled sheets from 1.5 mm to 6 mm thick:

Hot-Rolled Pickled and Oiled Steel Sheets DD11 is a type of flat steel product that has been treated in a series of steps to remove the oxide scale formed during the hot-rolling process and then coated with oil or similar material to prevent rusting. This process results in a product with a smooth surface and improved corrosion resistance.

DD11 is low-carbon steel, commonly used in various applications such as automotive, appliance, and general engineering. It has good forming and welding properties and is suitable for a wide range of manufacturing processes.

The pickling process further improves the surface finish and corrosion resistance of DD11 sheet steel, making it ideal for applications where appearance and durability are important.

DD11 pickled and oiled steel sheets are usually manufactured in thicker gauges than cold-rolled steel sheets, ranging from 1.6mm to 6mm thick. The width of the boards can vary but usually ranges from 1 to 2 meters.
Hot-Rolled Pickled and Oiled Steel Sheets DD11 is a type of flat steel product that has been treated in a series of steps to remove the oxide scale formed during the hot-rolling process and then coated with oil or similar material to prevent rusting. This process results in a product with a smooth surface and improved corrosion resistance.

DD11 is low-carbon steel, commonly used in various applications such as automotive, appliance, and general engineering. It has good forming and welding properties and is suitable for a wide range of manufacturing processes.

The pickling process further improves the surface finish and corrosion resistance of DD11 sheet steel, making it ideal for applications where appearance and durability are important.

DD11 pickled and oiled steel sheets are usually manufactured in thicker gauges than cold-rolled steel sheets, ranging from 1.6mm to 6mm thick. The width of the boards can vary but usually ranges from 1 to 2 meters.

Hot-Rolled Pickled and Oiled Steel Sheets S235JR is a type of flat steel product that has been treated in a series of steps to remove the oxide scale formed during the hot-rolling process and then coated with oil or similar material to prevent rusting. This process results in a product with a smooth surface and improved corrosion resistance.

S235JR is a low-carbon structural steel commonly used in a variety of applications such as construction, automotive, and general engineering. The addition of alloying elements such as manganese, silicon, and carbon increases the strength, toughness, and weldability of steel.

The pickling process further improves the surface finish and corrosion resistance of S235JR sheet steel, making it ideal for applications where appearance and durability are important.

S235JR pickled and oiled sheets are usually produced in thicker profiles than cold-rolled steel sheets, ranging from 1.6 mm to 6 mm in thickness. The width of the boards can vary but usually ranges from 1 to 2 meters.

Qaurto plates

High level of strength and toughness

Quarto steel plates are large-sized steel plates commonly used in the construction of buildings, bridges, and other structures that require high-strength materials. These plates are characterized by their thickness, which usually ranges from 5 to 250 millimeters. The length of these plates can be up to 12 meters, and the width up to 3 meters.

The term "quarto" refers to the manufacturing process used to produce these plates. During the quarto rolling process, the steel is rolled four times, which helps improve the grain structure and improve the strength and durability of the final product. This makes quarto steel plates particularly suitable for applications where high levels of strength and toughness are required, such as offshore oil platforms, shipbuilding, and heavy machinery.

Quarto steel plates can be made from a variety of steel alloys, including carbon steel, high-strength low-alloy steel, and stainless steel. The specific type of steel used will depend on the intended application and the required properties of the final product.

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Eeconomical solution

Our offer of quarto plates

We provide you with the most economical format solution for your finishing needs.
  • Delivery options:Thicknesses from 10 to 250 mm
    Max. width 3500 mm
    Min. width 1500 mm
    Max. length 14,000 mm
    Min. length 3000 mm
    (Other widths possible on request)
  • Non-alloy structural steels:Quality range S235 – S355
  • Plates for the production of pressure tanks:Quality range P235 – P355
    16Mo3
  • Ratings for Shipbuilding:Grade range Gr. A, EH36, DH36