What is Z Profile + Different Types Based on Appearance, Material, and Thickness
If you are reading this article, you probably want to know what a Z profile is. First, we must say that profiles are among the most widely used steel sections, produced in various types, each with specific characteristics and applications. One of these types is the Z profile, also known as Z purlin. For the correct use of each type of profile, having knowledge of its features and specifications can be very helpful. This article provides information on what Z purlin is, so that by reading it, you will become well-informed about the features and technical specifications of the Z profile, its applications and advantages, its types, and even its production process.
This article examines the following topics:
What is Z Profile and in What Dimensions is it Produced?
When encountering the name “Z profile,” the question may arise as to why it is called that. Since this steel section is produced in the pipe and profile production line in the shape of the letter Z, it is called Z profile or Z purlin. In the classification of profiles into open and closed sections, the Z profile is considered an open profile. Also, the Z purlin is one of the light profiles, which makes it suitable for use in construction.
Before placing an order, we must know the intended dimensions of the Z purlin, and these dimensions must be calculated by engineers. In the dimensions of the Z profile, we do not only deal with height (the back of the two flanges) and thickness. This profile is made in such a way that it has edges. The edges of the Z purlin are called flanges, and the distance between the edges is called the web. Typically, Z profiles are produced in heights of 16, 18, 20, and 22 cm and thicknesses of 2, 2.5, and 3 mm.
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Examining the Weight of Z Profile (Z Purlin)
After identifying the Z purlin, we reach the question of how the weight of the Z profile is calculated. The weight of the Z profile is one of the factors that influences its price. The weight of the Z profile can be calculated using the following formula:
Weight of Z Profile = (7.87 × branch length × branch thickness × (2(length + width) + size)) / 1000
In this formula, weight is considered in kilograms, branch length in meters, thickness in millimeters, and length and width in centimeters.
Applications and Advantages of Z Profile
In this section, we will examine the applications and advantages of the Z profile. Advantages of Z purlin include light weight, high strength, easy installation, flexibility of angles, proper slope, recyclability, resistance to impact, and ability to withstand heavy loads.
In construction, the Z profile plays an important role in supporting the roof deck and increasing its strength. It is used to reduce the spacing between beams and prevent roof sagging. The asymmetric design of the Z profile balances the load in structures and improves performance against earthquake stresses and strong winds. Other construction applications of the Z profile include warehouse roofs, stadiums, greenhouses, railings for doors and windows, metal frames for houses and public places, and fences.
If you want to know the non-construction applications of the Z profile, it should be mentioned that it is also used in the automotive industry, shipbuilding, furniture, rails, bridge and highway guards, and pipeline support structures.
Types of Z Purlin and Their Specifications
Now we want to explain what the types of Z profiles are and what specifications each has. Z purlin is classified in different ways in terms of appearance, z material, and thickness, which we will introduce below.
Types of Z Profile by Appearance
In this section, we explain the types of Z purlin based on appearance. This profile comes in simple, edged, and perforated shapes. The simple Z profile has no edge and its dimensions are uniform. But what is the application of the simple Z purlin? This profile is used in wall construction, lightweight roofs, and metal coverings.
The edged Z profile has flanges on the top edges. Due to its high resistance and strength, it is used in structures requiring high durability. The perforated Z profile is another type, which has holes on its surface. Usually, 6 or 8 holes are placed on the surface, making it suitable for quick component connections or for passing wires.
Types of Z Profile by Material
In terms of material, Z profiles are produced in steel, aluminum, and galvanized types. The steel Z profile is produced without coating, has an affordable price, high strength, and therefore is used in building skeletons and warehouses. The aluminum Z profile is rust-resistant and expensive. It is lightweight yet highly resistant, making it suitable for use in harsh conditions. The galvanized Z profile has a coating that protects it against rust and corrosion. It has a long lifespan and is suitable for use in humid environments.
Types of Z Profile by Thickness and Web Height
If we want to explain the types of Z profiles based on thickness, we should say they are typically produced in thicknesses of 2, 2.5, and 3 mm. In lightweight structures, 2 mm thickness is used, while in structures requiring high resistance, thicknesses of 2.5 and 3 mm are used. Among seamless pipes, the thick-walled seamless pipe has higher thickness.
According to the web height (the distance between the flanges), types of Z profiles include Z16, Z18, Z20, and Z22. The Z16 profile is lightweight and used in small structures. The Z22 profile is the heaviest Z purlin and has a higher price. In the continuation of this article from Maz Group, we will review the production process of Z profiles.
Complete Production Process of Z Profile
Now we want to see what the complete production process of Z profiles is. Profiles are produced through several stages using hot and cold rolling. The point is that using cold steel for producing Z profiles is less costly and easier compared to hot steel.
- Stage 1: Different steel sheets such as black sheet, oiled sheet, and galvanized sheet are selected depending on the desired features and application, with the required thickness, and are fed into the production line.
- Stage 2: The coil is placed on the automatic uncoiler axis and supports are connected.
- Stage 3: The sheet is cut according to the required size.
- Stage 4: The cut strips are rewound into coils in specified dimensions and prepared for the press line.
- Stage 5: After pressing, the forming process takes place and multiple bends are created in the sheets (the initial bends form the Z shape, and the next bends form the flanges). If perforated Z profiles are required, punching is also performed. The shape and section of the profile are inspected and produced in multiple sections. In this regard, we recommend reading the article on profile bending.
- Final Stage: Finally, the Z profiles are produced and cut into 6-meter branches. The finished Z profiles are inspected and tested, then packaged and stored.
To improve production line performance and prevent damage, it is necessary that spare parts of pipe and profile lines have high quality and be regularly checked.
Conclusion
In this article from Mazs Group magazine, we discussed what Z profile is and what its applications and advantages are. The Z profile is not only used in construction but its unique features also make it suitable for use in other industries. Z purlins come in different types that must be selected according to the need. We also explained the complete production process of Z purlins in this article.
FAQ
A Z profile is a steel section shaped like the letter “Z.” It is a lightweight open profile widely used in construction and other industries for structural support, roofing, and framing.
It is named after its shape, which resembles the letter “Z” when produced in the pipe and profile rolling line.
They are commonly produced in heights of 16, 18, 20, and 22 cm with thicknesses of 2, 2.5, and 3 mm.
