Allied Steel NYC, Serving New York City 5 Boroughs & long Island City

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Steel Products NYC FAQ

In order to better assist our New York City (NYC) clients and customers and resolve their queries regarding the different types of steel products that we offer, we have created a dedicated FAQ guide. The following are some of the frequently asked questions that many of our NYC clients ask us. Please take a look:

What Is a Flitch Plate? What Are Flitch Plates Used for in NYC?

A flitch plate is also commonly known as a flitch beam. It is essentially a carbon steel plate with numerous holes that are placed in a sequential manner. The steel flitch plate is then placed between a couple of wood beam (sandwiched together). Once it is sandwiched together, bolts are placed in order to tightly create a stronger beam. In certain situations, two flitch plates are brought together in order to sandwich a wooden beam. During renovation projects, these flitch plates are used in the basement. When a lally column is removed in order to create additional space, a reinforced flitch plate can be used to increase the structural load strength. After the removal of the lally column, a reinforced flitch plate is needed in order to bear a higher structural load. By installing a flitch plate/beam, the strength of the existing beam can be significantly enhanced. However, in order to determine the exact type of flitch plate/beam that is needed, a NYC architectural engineer must be hired.

What Is a Splice Plate or Connection Plate? What Are Splice Plates Commonly Used for in New York City (NYC)?

A Splice Plate is a standard steel plate that is used to create a connection between two plates of steel. The point where the two steel pieces must be joined together is commonly referred to as the splice point. The connection must be secured properly since it is vital to maintaining the integrity of the structure that connects the two existing steel pieces. This splicing technique is commonly used in numerous situations. For instance, it is used in creating a beam of a longer span length, where standard beams might not be long enough. Once the steel pieces are ready to be joined to each other, the splice plate is placed over the splice point, and tightly bolted in place to create a stronger joint. In most scenarios, the outer edge of the splice plate is also welded together in order to increase the strength of the connection.

What Is a Lintel? What Are Lintels Commonly Used for in New York City (NYC)?

A Lintel is generally referred to as a header beam. It is mainly used in structures to create horizontal openings and to support the weight of the structure above the opening. They are structurally placed over windows, fireplaces and doors. They are also used to create a span between two different columns or piers. A common example of lintels being used to create a span between columns is during the construction of a portal. Lintels provide support to the load bearing structure and are commonly employed in the construction of houses, buildings and many other structures. Lintels are generally fabricated from wood, steel or concrete. Not only are lintels useful in adding support to the structure of a building, but they also enhance the outward appearance of the structure itself.

What Are Waler Beams? What Are Waler Beams Used for in New York City (NYC)?

Waler Beams are used in construction projects and serve as supporting brackets for steel sheet pile walls, or for supporting concrete walls. Waler beams (also spelled as whaler) were originally created in order to provide support for retaining wall systems with the help of sheet piles or reinforced concrete beams. They can also be used to transfer structural weights across the wall via tie rod connections. The beams must be placed horizontally over the area that needs to be structurally reinforced. Once they have been properly placed, steel washer plates must be placed at either end of the rod in order to securely lock down the rod and tighten the waler in its place.

In order to prevent the steel from moving or bucking in its place, waler beam can be used to provide a temporary reinforcement brace. This is helpful when the concrete has been newly poured on a steel form. Until the concrete sets in place, the waler beam can be used to keep the steel form in its original location. steel channel sections are used for the construction of these walers. They are fabricated one after the other, with only a small space left between them. This allows for the tie rod to pass through the beam. Structural beam sections can also be drilled into the section for similar applications.

What is a Pour Stop and what is a Pour Stop Commonly Used for in New York City (NYC)?

A Pour Stop is manufactured from a number of different types of sheet or plate thicknesses, which are bent into various shapes. The pour stop is used popularly in construction applications, mainly to act as a barrier and prevent the concrete from pouring into certain areas. For example, a pour-stop can be used to prevent the concrete from pouring into a floor that is made out of steel, mainly for newly constructed buildings. Flat metals such as carbon steel, stainless steel, galvanized steel or aluminum is used for the manufacture of formed pour stops.

Sheet fabrication process involving a press brake machine is used in order to bend the pour-stop into various shapes such as z- channels, C-channels or any other custom shape that may be needed. Then, the pour-stop is installed by welding around the area where the concrete pour must be stopped. Once it is properly installed, the pour-stop serves as the barrier, preventing the concrete from pouring further.

What Are Caissons and What Are Caissons Used for in New York City (NYC)?

A Caisson is a watertight structure that is mainly used for working on the foundation of a building or architectural project that is completely submerged in water. The Caisson is generally manufactured from carbon steel and is then filled up with concrete, resulting in the creation of a concrete pile.

Caissons are used in a host of different construction applications. Their most common use is in the construction of bridges, where the caisson serves as the foundation on the riverbed.

What Is a Stair Pan or Stair Tread? What Are Stair Pans or Stair Treads Commonly Used for in New York City (NYC)?

As the name suggests, Stair Pans are commonly used in the construction of stairs. They are formed in the shape of a pan and concrete is filled within. Sheet steel or steel plates are used in the creation of these pans. During the sheet fabrication process, a press brake machine is used to turn the sheet steel into a u- shaped pan, with a depth of approximately 1- ½ or 2 inches. These pans are then placed on top of each other and are tightly bolted or welded together in between channel stringers. This ultimately results in the creation of a staircase.

However, the construction process is not complete as yet. After the pans have been sandwiched together, concrete is filled into the pans. This creates open riser stairs that are very popular in outdoor applications. This is mainly because these stairs can be cleaned quite easily. In a number of cases, a rear flange beam is used for forming the pans in order to extend to the next stair pan. This creates a closed riser staircase.

Sheet steel, diamond plate or checker plate can also be used for fabricating a stair tread. Again, these diamond treads are tightly sandwiched together, bolted together in a z- shape to create a stronger connection. The front flange is bent down while the rear flange is bent upwards to create a seamless flow. The treads are tightly welded and bolted between stringer channels.

In typical situations, a wood tread is bolted to the steel treads in order to give more of a rustic outlook. However, if they are made of diamond plate or a checker plate, this gives off a more industrial outlook. There are practical implications of this as well, since the diamond plate increases the amount of friction on the surface, providing a stronger grip. These are generally used in industries and for lining the surfaces of trains. They are also used as wall panels in some situations.

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