Stair tread steel grating is one of the most widely used application of steel bar grating. It can be installed in the factories or in the parks for the permanent or temporary using.
Stair tread can be made of low carbon steel, aluminum steel and stainless steel gratings. The low carbon steel grating can be galvanized and painted for better corrosion resistance.
Types of stair tread steel grating
According to the different fabrications of stair treads grating, it can be divided into welded stair treads, press-locked stair treads, swage-locked stair treads and riveted stair treads.
Among the four types, the welded grating stair tread is the most widely used type. It has firm structure and simple technology.
The press-locked and swage-locked stair tread can supply better lateral stiffness than other types of gratings.
And the riveted stair treads features higher load carrying capacity for longer service life.
A welded steel grating stair tread with checker plate nosing.
Welded steel grating stair tread.A swage-locked steel grating stair tread with round hole plate nosing.
Swage-locked steel grating stair tread.
A riveted steel grating stair tread with a vertical stripped plate nosing.
Riveted steel grating stair tread.A press-locked steel grating stair tread with a checker plate nosing.
Steel bar grating has so many applications. The platform and walkway application is one of the most important applications. Platform and walkway grating is widely used in the factories, walking street, parking lot, port, warehouse and other places to form a flat and open operating platform or walkway. Sometimes, the platform and walkway grating can be used combined with stair tread gratings for further application.
The main types of platform and walkway grating are welded steel grating, swage-locked grating, press-locked grating, riveted grating and close mesh grating. Welded steel grating is the most commonly used type, it is suitable for all common applications. The swage-locked grating and press-locked grating supply excellent lateral stiffness of the grating. The riveted grating and close mesh grating are suitable for pedestrians who wearing high-heel shoes, roller skates and wheeled equipment passing through. To suit the shapes of ground and equipment, there maybe need irregular steel grating in some places.
A welded platform and walking grating on the white background.
Welded platform and walking grating.A swage-locked platform and walking grating on the white background.
Swage-locked platform and walking grating.
A press-locked platform and walking grating on the white background.
Press-locked platform and waling grating.A riveted platform and walking grating on the white background.
Riveted platform and walking grating.
A close mesh platform and walking grating on the white background.
Close mesh platform and walking grating.Two irregular platform and walking gratings on the white background.
Irregular shape platform and walking grating.
Features
Large and open operating places. The platform and walkway grating supplies a large open places for convenient operating and accessing.
Easy to install. The steel grating is easy to install and doesn't need any special skills. It is much easier than the concrete grounds.
Low maintenance cost. It is easy to maintain the platform and walkway grating and the cost is lower than other material platform and walkways.
Various types. The welded, press-locked and so many other types of grating make it possible to suit more applications and satisfy customers' requirements.
Durable and long service life. The main material of platform and walkway grating is galvanized steels, which is corrosion resistance and rust resistance, all these can ensure the long service life of grating.
Widely used. The platform and walkway grating is widely used in so many places, such as port, parking lot, power plant, pedestrian street and other places.
Swage-locked grating, also called aluminum grating, is mainly made of aluminum steel bars, and other materials can be stainless steel bars. The bearing bars can be rectangular bars or I bars. I bar swage-locked grating is the most widely used type. In the same depth, I bar swage-locked grating can supply the same strength with the rectangular bar swage-locked grating, but it is lighter and cheaper than the rectangular bars swage-locked grating.
The cross bars are inserted into pre-punched holes of bearing bars and then it is hydraulically swaged under tons of pressure to lock the bearing bars in place. In these processes, the swage-locked grating form a permanent locked structure.
The standard bearing bar spacing is 1-3/16" or 15/16". There a type of new products named as close mesh steel grating, which has the closer spacing than the standard. The spacing of close mesh steel grating can range from 7/16" to 11/16".
Press-locked grating is also called pressure locked grating or press-locked steel bar grating. Basically, the press-locked grating have the same load capacity with the welded steel bar grating. The difference between press-locked grating and welded steel bar grating are joint connection technology and cross bars.
Cross bars of welded steel bar grating are twisted square rods and the bearing bars are rectangular bars or I type bars. Both the bearing bars and cross bars of press-locked grating are rectangular bars.
Compared to welded steel bar grating, which is produced through resistance-welding process, the press-locked grating is constructed with the two close-tolerance slotted bars bonded together by tremendous hydraulic pressure. This production can let press-locked grating be a permanent locking.
Press-locked grating and swage-locked grating has excellent lateral stiffness, which can be used in some special applications. And the serrated surface is available for press-locked grating.
Steel bar grating is a widely used grating type. It can be used in the trench and drainage system as the trench and drainage cover to ensure the excellent drainage performance and secure the pedestrians safety.
Like most of steel gratings, such as welded steel grating and press-locked grating, the drainage trench grating is made of carbon steel, aluminum steel and stainless steel. Different materials of grating can suit different applications of customers. Carbon steel grating is the most economical grating among the three types and the aluminum grating features lightweight and corrosion resistance, it can be used in the corrosive environments. The stainless steel grating has unique chemical stability, it is the ideal products to be used in the acid or alkali environments and keep a long service life.
Drainage trench grating types
A galvanized drainage trench grate with angle frame on the white background.
Angle frame can increase the load capacity of drainage trench grate.
Trench grate and angle frame
It is the simplest and most economical types of types of trench covers. It can be installed on the trench and drainage to form a cover. This cover can not only ensure the excellent drainage performance, but allow the traffic passing through. The galvanized angle frame gives the maximum opening and supplies a strong and solid base for the grating. It can bear the load of steel grating can improve the load carrying capacity of grating.
Except for the standard trench grate, there is a type of grate is made of close mesh steel grating. The close mesh steel grating is available for pedestrians wearing high-heel shoes, bicycles and other wheeled equipment easy passing through.
Angle sided grates
Angle sided grate is a type of drainage trench cover with angle bar on the two side of the grating. It is fit for the concrete trench, which is molded a channel to place the grates. The sided angle bars can bear the load capacity of the grating and ensure the long service life of the grate. The appropriate opening size can not only enable the drainage but also block the large wastes from entering the trench and blocking the trench.
The angle sided grate has smooth and serrated surface for choice. And the common length of angle sided grates are 1m.
A galvanized angle sided grate with smooth surface.
Angle sided grate with smooth surface.A galvanized angle sided grate with serrated surface on the white background.
Box grates
Box grate is a type of drainage trench cover with galvanized frame. The frame make it easy to install the box grating onto ground. There are hinges connecting the grate and frame. This design is ideal for easy cleaning of trench. The surface of box grate can be smooth and serrated to suit different applications of customers. The grate on the frame is mostly welded steel grating which is the simplest and most widely used grating type.
When you start a transformer project, you may need the transformer grating in advance. Then you raise the transformer on the grating and lay the cobblestone on the grating. The stones are very important for absorbing the oil leaked by the transformer. Additional, the stones are insulated to the electricity and can protect the safe of worker and inspectors. The grating under the cobblestone and above the transformer is also important. It can supply high load capacity to load the heavy transformer and it will supply excellent heat dissipation performance to maintain the normal working and safe of transformer. Here are two types of transformer grating, just refer to them and choose the perfect one.
Hot dipped galvanized steel bar grating
Several pieces of hot dipped steel bar grating on the ground.
TG-01: Transformer grating has thick coating and bright surface for corrosion and rust resistance.
Hot dipped galvanized steel bar grating is composed of mild steel square pipe and rebar. The rebars are welded onto square pipe to form a rigid and solid structure. The steel bar grating panel will be hot dipped galvanized for rust and corrosion resistance. This type steel bar grating can supply high stability and loading capacity. Besides, the hot dipped galvanized coating can extend service life of grating and serve for the transformer bay for a long time.
Specifications
Material: mild steel pipe and wire.
Surface treatment: hot dipped galvanized after welded.
Square tube dimension: 120 mm 60 mm 4 mm, 50 mm 50 mm 3 mm.
Square tube length: 2900 mm.
Rebar diameter: 10 mm.
Rebar length: 2000 mm.
Rebar spacing: no higher than 50 mm.
Several bundle of mild steel rebars on the ground.
TG-02: Mild steel rebar.Several mild steel square tubes on the ground.
TG-03: Mild steel square tube.
Specifications of hot dipped galvanized steel bar grating
Item Width length
TGG-01 2000 2900
TGG-02 1900 3000
TGG-03 1900 2800
TGG-04 1000 1950
TGG-05 1000 2050
TGG-06 870 2460
TGG-07 870 2540
TGG-08 950 2000
TGG-09 1000 2900
TGG-10 2000 2540
TGG-11 2000 2360
TGG-12 2000 2880
TGG-13 1900 2970
TGG-14 1000 1950
TGG-15 1000 2070
TGG-16 870 2580
TGG-17 870 2480
TGG-18 950 2000
TGG-19 2000 2500
TGG-20 1000 2880
A drawing of hot dipped galvanized transformer grating on the blue background.
TG-04: Steel bar grating drawing.
The hot dipped galvanized grating on the frame and several stones on it.
TG-05: Hot dipped galvanized steel bar grating is widely used in transformer bay.
Features
Lightweight. Compared with other steel bar grating, it has lighter structure.
Simple structure for easy installation.
Hot dipped galvanized for corrosion and rust resistance.
Narrow spacing to keep stones on the surface.
Good heat dissipation. It is benefit for the heat dissipation for transformer and maintain safe.
Welded steel grating is the most popular type among all types of steel grating, also called metal open bar grating. It is also the most widely used type.
Welded steel grating is produced through automatically resistance welded. The bearing bars and cross bars are resistance welded under high heat and pressure to form a permanent joint. This technology can not only ensure the rugged structure of welded steel grating, but also can retain a smooth and flat surface, which is easy and free to walk.
Welded steel grating can be made of various materials, such as carbon steel bars, aluminum steel bars and stainless steel bars.
The bearing bar has two different types according to the surface: smooth bearing bar and serrated bearing bar. Smooth surface steel grating, also called plain steel grating, is more popular than the serrated surface steel grating. But the serrated steel grating have better skid resistance property than the smooth surface.
A galvanized welded steel grating with smooth surface.
Smooth surface welded steel grating.A galvanized welded steel grating with serrated surface.
Serrated surface welded steel grating.
Specification
Material: carbon steel and stainless steel.
Surface treatment: galvanized, mill finished, painted, powder coated, etc.
Surface type: standard plain surface, serrated surface.
Bearing bar type: plain bearing bar and serrated bearing bar.
Standard width: 2', 3' and 4'.
Riveted grating is a type of heavy duty grating, which has higher load carrying capacity than the welded steel grating or swage-locked grating in the same span and depth of grating.
The main parts of riveted grating are bearing bars, crimp bars and rivets. Different from press-locked grating or welded steel grating, which has rectangular or round cross bars, the riveted grating has a series of crimp bars. The rivets are individually cold-pressed using hydraulically and mechanically operated riveting tools. The rivets is mainly used to seal the bearing bars and crimp bars together to form a high-strength joints.
Riveted grating is mainly manufactured from carbon steel, aluminum steel or stainless steel. The carbon steel can be galvanized or painted for further corrosion resistance, and the aluminum rivet grating is popular with applications, which need lightweight and corrosion resistant gratings. The stainless steel rivet grating has excellent acid and alkali resistance, it is widely used in the extremely harsh environments.
Standard steel bar grating has the 1-3/16" and 15/16" bearing bar spacing. There is a type of steel bar grating, which has closer bearing bar spacing for heavy duty and special requirements applications, that is close mesh steel grating.
Compared with standard steel bar grating, close mesh steel bar grating has higher load capacity and can be used in more applications. The closer spacing can permit the wheeled equipment passing, including the baby carriage, roller skates. Additional, the close mesh steel grating is suitable for the ADA (American Disability Act) standard. It can allow the wheel chairs get through fluently.
Carbon steel grating is the most economical type of steel grating, it has high tensile strength and high load carrying capacity. For better corrosion resistance performance, we can adopt the galvanized and painted surface treatment to suit more applications and extend its service life.Welded carbon steel grating.
Swage-locked carbon steel grating.
Press-locked carbon steel grating.
Riveted carbon steel grating.Features of carbon steel grating
High strength.
Most economical type.
Corrosion resistance.
Oxidation resistance.
Easy to install and uninstall.
Low maintenance cost.
Aluminum steel grating is another economical steel grating type. Compared to the stainless steel grating, it is lighter in weight, so it is easier to transport and install. Compared to the carbon steel grating, aluminum steel grating has better corrosion resistance, which can be used in more applications.
Classification of aluminum steel grating
Aluminum steel grating has various types, according to the fabrications and surface type, it can be classified into different types. Just browse the classification in the following and contact us for more details.
Different fabrications
Welded aluminum steel grating.
Swage-locked aluminum steel grating.
Press-locked aluminum steel grating.
Riveted aluminum steel grating.
A welded aluminum steel grating on the white background.
Welded aluminum steel grating.A swage-locked aluminum steel grating on the white background.
Swage-locked aluminum steel grating.
A press-locked aluminum steel grating on the white background.
Press-locked aluminum steel grating.A riveted aluminum steel grating on the white background.
Riveted aluminum steel grating.
Different surface types
Smooth surface aluminum steel grating.
Serrated surface aluminum steel grating.
A aluminum steel grating with smooth surface on the white background.
Smooth surface aluminum steel grating.A aluminum steel grating with serrated surface on the white background.
Serrated surface aluminum steel grating.
Features of aluminum steel grating
Lightweight. The total weight of aluminum steel grating is about 1/3 of other material steel grating.
Easy to install and uninstall. The install process is easy and doesn't need any special skills.
Corrosion resistance. It can be used in the corrosive environments.
Durable and long service life. It has ability of anti-corrosion, which can extend the service life of aluminum steel grating.
High load carrying capacity. It allows for heavy vehicles access and passing.
Application of aluminum steel grating
Aluminum steel grating with excellent corrosion resistance and lightweight characters is widely used in commercial and industrial applications.
As we all know, the steel grating has many different materials, such as carbon steel grating and aluminum steel grating. There is a type of grating with most durable and longest service life - stainless steel grating.
Stainless steel grating features excellent chemical stability, which is acid and alkali resistance. The chemical stability performance make it possible to be used in the harshest environments, such as salty, acid, alkali and other corrosive and chemical environments.
Classification of stainless steel grating
Stainless steel grating has different types according to the fabrications and surface types. Just refer to the classification in the following and if you have any question, just contact us and we will give you a rapid response as soon as possible.
According to the fabrications
Welded stainless steel grating.
Swage-locked stainless steel grating.
Press-locked stainless steel grating.
Riveted stainless steel grating.
A welded stainless steel grating on the white background.
Welded stainless steel grating.A swage-locked stainless steel grating on the white background.
Swage-locked stainless steel grating.
A press-locked stainless steel grating on the white background.
Press-locked stainless steel grating.A riveted stainless steel grating on the white background.
Riveted stainless steel grating.
According to the surface type
Plain stainless steel grating. Plain surface stainless steel grating is available for almost all of the common applications.
Serrated stainless steel grating. Serrated surface stainless steel grating is widely used in the wet, slippy and other places where need anti-slip gratings.
A stainless steel grating with smooth surface on the white background.
Smooth surface stainless steel grating.A stainless steel grating with serrated on the white background.
Serrated surface stainless steel grating.
Features of stainless steel grating
Outstanding corrosion resistance.
Excellent acid and alkali resistance.
Serrated surface for slip resistance.
Wide range of application in different fields.
Plain steel grating, also called smooth surface grating, is a type of grating made of plain steel bars. The smooth surface contrast with serrated steel grating, which has a serrated surface. plain steel grating is the most widely used grating type, which is used in almost all of the applications.
Plain steel grating can be made of carbon steel bar, aluminum steel bars and stainless steel bars. Cross bars of plain steel grating can be crimped bars, which are known as riveted steel gratings, flat square bars which are the press-locked gratings. The round bars is welded to the bearing bar is welded steel grating and the bars are placed into the pre-holes on the bearing bars to form the swage-locked grating.
Classification of plain steel grating
Plain steel grating can be divided into different types according to different standard. You can refer to the following classification and find the perfect product for you. And if you have other special requirements, just contact us for customization.
Different fabrications
Welded plain steel grating. The twisted square cross bars is welded onto bearing bars to form a firm and integrated structure.
Swage-locked plain steel grating. The round or square bars is placed into pre-holes on the bearing bars and then locked by high pressure.
Press-locked plain steel grating. The flat square bars is pressed onto the bearing bars by extremely high pressure. Sometimes, there are notches on bearing bars and cross bars. And the height of bearing bar and cross bar can be different.
Steel bar grating has two surface type: serrated surface and smooth surface. Serrated steel grating is made of serrated steel bars, which can be low carbon steel bars, aluminum steel bars and stainless steel bars. The serrated steel bars are welded, press-locked, swage-locked or connected by rivets to form different types of steel grating.
Compared to the plain steel grating, which is available for almost all of the applications, the serrated steel grating is widely used in the wet, slippy places, which need anti-slip performance.
