Structural steel

Structural steel is a crucial part of many construction processes in both civil and marine construction. Its excellent low weight to strength ratio makes it a perfect choice for a range of developments and brings several advantages to these projects.

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Some of the benefits of structural steel are 

1.

It is cost-efficient

Structural steel is less expensive to manufacture and erect, which makes it cheaper to build quality buildings. It is also inexpensive to repair and manage the projects.

2.

It has aesthetic advantages and allows for further creativity

The natural beauty of steel offers more opportunities for architects to create different shapes and play around with the natural light in the construction they build.

3.

It allows for better control and management

Structural steel increases the safety of the construction process and has been repeatedly shown to be an optimal solution in management.

4.

Offers long term durability

The material can withstand harsh weather conditions from heavy snow to hurricanes while at the same time being resistant to rust, mold and fungi, and pest infestation. Its combination of strength and durability is what makes it the best for the bridge construction.

Structural steel specifications

Structural steel products made in the US are guided and fabricated according to the standards set by the American Society for Testing and Materials. Steel products are designated codes that denote their properties and ideal use. All the grades start with an ‘A’ followed by two to four numbers. The specifications fall under five main common categories, with the following major classes under them.

Carbon Steels

A36, A529 for structural shapes and plate

A53, A500, A501, A1085 for structural hollow steel sections.

Forged Steel

A668 is the primary grade used to make steel forgings               

Corrosion Resistant and High-grade Low Alloy Steels

A243 and A588 structural plates and bars

Quench hardened and Tempered Steels

A514 structural shapes and plate and A517 for high pressure items and boilers

High-grade Low Alloy Steels

A441, A572, A270, for structural beams and plates

A618 for structural tubular steel

A992 mostly used for W/H or I-beams

 A913 for Quenched and Tempered H shaped beams

              

Structural steel composition

The composition of structural steel is derived from the way it is made. In brief, structural steel is made by heating iron and adding other substances that will give you desired results. The first process involves reducing the carbo composition in the iron ore since pure iron is rarely found. The iron is first crushed and refined in several ways achieving purity levels of about 60 percent. It is then heated, turning it to molten for further refining.

However, a significant amount of carbon is still retained, making carbon the second most significant element in steel. It gives the steel its strength and reduces the ductility property. The percentage of carbon in structural steel is higher than in other types of steel, which makes it more robust and less ductile. Depending on the form of the structural steel, the percentage of carbon may vary. 

Besides iron and carbon, structural steel also contains other metals that add additional properties to the steel. The other significant components include;

1.

Manganese is essential in the free-cutting steels to improve machinability and prevents cracking and splitting of the steel product during rolling.

2.

Phosphorus also helps with machinability and helps increase the metal's tensile strength but, if used in plenty, makes the steel very brittle.

3.

Sulfur is found in steel as an impurity and would adversely affect the desired properties of steel.

Other additives that can be found in structural steel are silicon, chromium, tungsten, and vanadium.

 Structural Steel Properties

Structural steel properties describe its characteristics and take into consideration several measurements for proper grading and standardizing structural steel. Steel properties include the following;

Tensile strength refers to the limit an object can be stretched without breaking. The point at which it breaks is known as the fracture point. Structural steel has a high tensile strength.

Hardness refers to the ability of structural steel to withstand inelastic deformation. It is the measure of how much an object can resist a change in shape when force is applied. There are three types of hardness, scratch, rebound, and hardness. 

Fatigue measures the failure of steel structures occurring as a result of crack initiation, which comes from cyclic loading. It is measured using the axial load test, flexure test, and the rotating beam test Creep refers to the variation of structural steel, which happens gradually under constant stress. Density refers to structural steel's mass per unit volume, which is 7.75 – 8.1g/cm3.  Elastic Modulus measures an object's tendency to be deformed when under force or stress. Yield Strength refers to the measurement of stress at which an object will be deformed permanently and cannot return to the original shape when the pressure is removed.

Structural steel shapes

Structural steel is usually fabricated into beams, bars, and rods which come in different shapes. Their shapes and design properties determine the role of steel in construction. A beam gets its design from its specific cross-section

Structural Steel beams

The I-Shaped beam is also known as the H-beam thanks to its shape, which has two flanges joined by a vertical element forming the letter I or H. It is also known as a universal beam. They serve as lintels and columns.

The Angle Beams (L-Shape) is formed in an L shape with a 90-degrees angle. The legs can be equal or unequal, and they are primarily used on floor systems and roof trusses. 

A T-shaped beam, also known as a T beam from the shape consists of a single flange and a vertical web. It is a load-bearing beam but is limited when it comes to some applications since it lacks the other horizontal flange.

C- Shaped beams are designed by having two flanges and a vertical web connecting to form a

C cross-section. They are ideal for small to medium range structures.

Structural Steel types

Pipes and Tubes are also known as hollow steel sections and have a tubular cross-section which can be in any shape from circular, square to rectangular.

Round bars

Square bars

Flat bars

Structural steel versatility and cost-effectiveness makes it the optimal material for a range of construction projects, from buildings to bridges and even space projects. Its range of properties can also be altered during processing to suit custom functions.

About Us

We have more than 20 years experience working with all types of custom fences, gates, railings and more. Our company was opened in 2009 and since then we’ve built a reputation for providing the best steel and aluminum custom made products in the area. We are dedicated to not just meeting, but exceeding your expectations, bringing old world charm, contemporary style – or a seamless mix of both – into your home or business.

 Our hard work paid off in 2016 when we received the Best of Paterson Award. The Paterson Award Program was established to recognize the best of the local businesses in the community.  This achievement is given to a company that is believed to have achieved exceptional marketing success in the local community and business category – making Paterson a great place to live, work and play.

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973-523-6323

Address

34 Bergen street,

Paterson, NJ 07522


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Dave's Architectural Iron LLC

34 Bergen, Paterson, New Jersey,07522

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