Structural Steel

Why Choose Us

Rich Experience
Our company has many years of production work experience. The concept of customer-oriented and win-win cooperation makes the company more mature and stronger.

Product Application
Prestressed steel products are used to match the high-end structured of concrete such as railways, highways, bridges, mine, nuclear power plant, hydro-power, large-span buildings and used in producing port concrete pile, high-rise building foundation concrete pile and pier concrete pile, etc.

Competitive Price
We offering a higher-quality product or service at an equivalent price. As a result we have a growing and loyal customer base.

Our Service
Yogiant has a professional and highly experienced workforce. With years of business operation, they possess strong capability of business consultation and project design and can skillfully and quickly meet customers' packaged business requirements before sales.
After sales, Yogiant has a number of core logistics resources such as port, storage and transportation which are of favorable credits, reliable reputation and standard management. The company has formed a convenient and efficient capability of logistics control and management, providing customers with a complete solution of logistics.

What is Structural Steel

Structural steel is metal used in construction materials. Fundamentally, it is defined as steel optimized for use in building construction—differentiated from a steel grade one might use to engineer tools, or stainless steel popularly used in kitchen surfaces and appliances.
Structural steel is generally a carbon steel, meaning it has a chemical composition containing both iron and carbon. Structural steel is any category of steel with a carbon content of up to 2.1% of its total weight. The higher the carbon content, the higher a piece of steel’s yield strength—meaning it is less ductile, or less likely to bend or warp when pressure is applied.

Advantages of Structural Steel

Strength – Although structural steel is known to have considerable strength, it can be further improved by adding various alloys to its composition. The manufacturing process, mechanical working, and heat treatment of steel will also affect its strength. But the most important factor affecting this is its strength-to-weight ratio, which means it is significantly strong for much less weight.
Cost-effectivity – The past decades have seen advancements in steel production, making it progressively cheaper and faster to produce. The time it takes to produce a tonne of steel nowadays is significantly lower, leading to lower costs.
Aesthetic Versatility – Owing to the versatility of steel, designers and architects have more freedom of artistic expression through the shapes of structural steel components without compromising strength or functional properties.
Sustainability – Steel is widely recycled in the construction industry. It is 100% recyclable with minimal degradation to the properties that make it a preferred construction component. Over 90% of structural steel is recycled, making steel the world’s most sustainable building material. Very minimal processing is required for its recycling, and the carbon footprint has continually been reduced, especially in the last decade.
Fire Resistance – Steel is, by default, a non-combustible material but loses a significant amount of its structural integrity when heated sufficiently. ‘Critical Temperature’ is the term used to indicate steel’s ability to support a load under a specific temperature.
Resistance to the Elements – Steel is also particularly resistant to the elements, such as mould or mildew, which could affect the integrity of other materials. Although corrosion remains a weakness of steel, there are preventive measures that can be taken, such as sprays and protective paints, albeit at a cost.

What are the different shapes of structural steel

Below are types of structural steel sections commonly used in the construction industry:
Angled sections
Right-angled, L-shaped steel sections that come in equal or unequal lengths. These are usually used to support any kind of steel structure, from joining steel bars together to supporting a steel bedframe.
Tubular hollow sections
Circular, pipe-like steel sections with high torsional resistance, meaning they are less likely to twist under weight, and are therefore ideal for load-bearing.
Flat sections
Otherwise known as “plates,” flat sections can be attached to other sections to reinforce strength.
Parallel flange channels
Parallel flange channels are U-shaped steel sections with right-angled corners; these steel sections have a high strength-to-weight ratio, meaning they are often relatively light compared with the loads they can bear.
Rectangular hollow sections
Rectangular hollow sections are similar to tubular hollow sections, except they are rectangular in shape. They have high torsional resistance.
Square hollow sections
Square hollow sections are less commonly used than tubular or rectangular hollow sections, as their shape is not compatible for fusing with many other structural steel shapes. They are often used in the columns or posts of a structure, however.
Tapered flange beams
Also known as I-beams, resembling the letter “I” at its ends, tapered flange beams are typically used as cross-sections for girders. They have an overall high resistance ratio, but unlike variously shaped hollow sections, do not have high resistance to torsion.
Universal beams
Universal beams, known as H-beams for their resemblance to the capital letter, or wide flange beams, are similar in shape and function to tapered flange beams.
Universal columns
Universal columns resemble universal beams, but are primarily used for vertical building columns due to their superior load-bearing capabilities.

What Type of Steel Is Structural Steel Made Of

Carbon steel
All structural steels are considered carbon steel if no other alloying elements are present, the copper content of the steel does not exceed 0.4% to 0.6%, its manganese content is equal to or under 1.6%, and its silicone content does not exceed 0.6%.

High strength low alloy steel
This type of steel is meant to optimise its mechanical properties and corrosion resistance. These kinds of steel have manganese content which reaches up to 2%. Depending on the intended application, this type of steel may have trace amounts of other elements such as chromium, molybdenum, nickel, nitrogen, niobium, vanadium, and titanium to alter its properties.

Forged steel
Forging refers to the process of shaping metal (in this case, steel) while it is in a solid state. The process produces a uniform grain structure to the steel, consequently improving its integrity due to removing voids and gas bubbles. Forged steel is any steel that undergoes this process.

Quenched and tempered alloy steel
Quenching and tempering are processes which improve structural steel through the use of heat while also simultaneously cooling it in water, forced air, nitrogen, or oil. The result is a stronger, higher-strength structural steel that is much less brittle.

How Is Structural Steel Made

The structural steel fabrication process undergoes five stages, namely
(1) Ideation, blueprint and shop drawings,
(2) Cutting, bending, and drilling,
(3) Engraving and assembly (including steel welding),
(4) Shipping preparation and component finishing, and
(5) Site delivery and erection. The actual fabrication does not begin until the second stage, where a majority of the physical processes are involved.
Due to structural steel’s properties, it is easy to fabricate into many sizes and shapes. Its cost-effective nature compared to other metals, such as copper, makes it the preferred metal for fabrication. Structural steel remains one of the most suitable materials for fabrication with an equally reliable ROI.

Composition of Structural Steel

For reliable longevity and to bear extreme weight, structural steel must be of the right composition. Iron and carbon are two of the most vital components used by steel mills when making structural steel. The carbon lends strength to the iron ore, which is the source for the iron in steel and is quite soft on its own. To achieve load-bearing capacity, structural steel must have a higher carbon content by weight, and manufacturers can increase the amount of carbon according to the level of strength and ductility its application requires. Most construction purposes only have the need for low-carbon, or mild, structural steel, which contains between 0.04 and 0.30% carbon by weight. Medium- and high-carbon structural steel requires from 0.31 to 1.50% carbon by weight, making this steel suitable for mechanical engineering applications.
Structural steel can also contain levels of manganese, phosphorus, sulfur, and silicone, among other materials. While manufacturers can add additional metals such as chromium, titanium, and molybdenum to their steel compositions to achieve greater strength, this is typically best for non-structural steel as it can result in a brittle end-product.
Whatever the composition, manufacturers must test their structural steel for acceptable yield and tensile strengths. Part of what makes structural steel strong is its ability to yield under weight pressure without permanently changing shape. The point at which structural steel does irrevocably change shape is called its yield strength. Additional weight pressure will eventually bring the steel to its tensile strength limit, the point at which the steel actually breaks. Yield and tensile strength are measured in pounds per square inch (psi) and kilopounds per square inch (ksi).
For evaluating impact or energy absorption within structural steel, the Charpy impact test has standardized the process. Operators utilize a weighty hammer pendulum and a structural steel material sample to calculate how much energy that particular steel can absorb when the pendulum strikes it before the material reaches yield and tensile strength limits. The Charpy test can also incorporate temperature testing to mimic environmental temperature fluctuations.
Given the critical nature of construction applications, the American Society for Testing and Materials (ASTM) has over 12,000 regulatory standards categorizing steel grades and governing the material and its tolerances. These regulations provide a consistent standard across industries and guarantee that steel meeting ASTM requirements will be of the highest quality. Some of the approved structural steel grades include ASTM A36, ASTM A500, ASTM A572, and ASTM A588, with multiple shape options based on the application.

What Is Structural Steel Used For

Buildings: Structural steel is the backbone of many modern buildings, from skyscrapers to homes. It is used to create the frames that support the weight of the walls, floors, and roof.
Bridges: Structural steel is also used to build bridges, which can be very long and span large distances. It is strong enough to support the weight of vehicles and pedestrians, and it can also withstand the forces of wind and water.
Towers: Structural steel is used to build towers, such as telecommunications towers and wind turbines. These towers must be able to withstand strong winds and other extreme weather conditions.
Other structures: Structural steel is also used in a variety of other structures, such as warehouses, stadiums, and industrial plants.

Attributes of Structural Steel Important to Structural Steel Buildings

Significant to all structures is their potential to absorb energy. There are three important mechanical properties that support structural steel’s wide-ranging functionality:

Yield strength
Yield strength refers to the minimum force required to achieve permanent deformation. Yield strength is determined with a tensile test, at the first point of deviation from proportionality on a stress-strain curve. Load-bearing steel should have a yield strength greater than 35,000 psi. Steel framing and non-load bearing material has a minimum yield strength requirement of 33,000 psi.

Tensile strength
Tensile strength is known as the ultimate, or maximum stress that a material can withstand before permanent failure. If yield strength is the first point at which a material permanently bends, tensile strength denotes the point at which the material breaks. Tensile strengths have dimensions of force per unit area, commonly expressed in units of pounds per square inch (psi). 36,000–50,000 psi is considered ordinary tensile strength for structural steel, but can reach up to 58,000–70,000 psi.

Elongation
Elongation is the degree of elasticity before rupture. The greater a material’s tensile strength, the less it will elongate under stress. Whether a material is bent, stretched, or compressed, elongation will be a point between tensile strength and yield strength and is expressed as a percentage of its original length. There is no elongation requirement for non-structural steel.

Our Factory

Suzhou Yogiant Holdings Company Limited, was founded on May 26th, 2015, with the registered capital (actual subscription) of 159 million yuan. Yogiant specializes in the international and domestic trade of steel, construction materials, machinery and equipment, with great business range covering steel products, special equipment and accessories for concrete pile industry and concrete products. With the development of three years, Suzhou Yogiant has gradually built its well-established service networks in Shanghai, Guangdong, Zhejiang, Shandong, Jiangsu, Tianjin and Hebei, and also has set up the overseas service networks in Hong Kong, Ho Chi Minh and Jakarta. Suzhou Yogiant has adhered to its business philosophy of "honest operation, mutual benefit and win-win cooperation" and advocated the idea of "regarding suppliers as source, employees-oriented and customers go first" since its foundation in 2015. Yogiant would like to make full use of its advantages in resources, capital and creditability, and continuously develop new business areas, and sincerely provide customers with quality products and services.
Be professional at work, and be grateful in life. Suzhou Yogiant always follows this principle and keeps pace of the times. The "partnership" mechanism is adopted in Yogiant's recruitment to attract more talented people, which also clearly demonstrates its core value of "co-building, sharing and win-win cooperation". Yogiant is dedicated to setting up an excellent platform for comprehensive trade and service, thereby creating more value for its customers, suppliers, employees and shareholders.

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FAQ

Q: What Is the Most Common Structural Steel?

A: Carbon steel is the most commonly used structural steel in the market today, largely due to its many beneficial properties, such as its affordability and strength. Carbon steel is more common than high strength low alloy steel, which is also frequently used due to its versatility.

Q: Is Rebar Structural Steel?

A: Rebar (or reinforcing bar), also referred to as reinforcing steel, differs from structural steel. Rebar is used to reinforce or support concrete and masonry, while structural steel serves as the frame of a structure, for example.

Q: How Strong Is Structural Steel?

A: Structural steel is considered to be similar in strength to reinforced concrete. Its tensile strength sits in the range of 400 to 500 MegaPascals (MPa). This value determines how much pressure it takes before structural steel reaches a point of material failure.

Q: What Is the Difference Between Reinforcement Steel and Structural Steel?

A: Reinforcement steel, or rebar, is used with concrete and masonry solely for support. Alternatively, structural steel is used by itself and serves as the frame of structures. Unlike reinforcement steel, structural steel must conform to higher standards and regulations, and comes in more sizes.

Q: What Is the Strongest Beam Shape?

A: The I-beam is considered the strongest beam shape for structural steel. These are intended to resist bending and are capable of bearing heavy loads. Vertical strips of metal across the flanges place the greatest depth of material on the plane of stress, preventing twisting.

Q: How Does Carbon Content Effect Steel?

A: Carbon content is directly proportional to the strength of steel. The more carbon is added, the stronger the steel is. But this also makes the steel more brittle, which reduces its weldability. The right mixture of steel and carbon is much better than just increasing carbon content to harden the steel.

Q: Is Steel Stronger Than Concrete?

A: Yes, generally speaking, steel is much stronger than concrete. Although reinforced concrete (with rebar/reinforcement steel) is on par with structural steel, concrete alone is not. Concrete has a tensile strength of just 70MPa, while structural steel sits at 400 to 500MPa.

Q: What are structural steel types?

A: The most common types of structural steel include Carbon steel, High-Strength Low-Alloy Steel, Forged Steel, and Quenched And Tempered Alloy steel. Structural steel is a type of steel that is specifically designed for use in the construction of load-bearing structures.

Q: What Is Steel Fabrication?

A: Steel fabrication, or structural steel fabrication, is a construction process used in many industries by which steel components are used to create large, permanent structures. Structures can include buildings, bridges, and even cars. During the process of structural steel fabrication, steel is cut and shaped for practical uses. Steel is also assembled through the use of skilled workers to finish the final product.

Q: How Does Steel Fabrication Benefit the Construction Industry?

A: The construction industry sees many benefits to using this method. One of the main benefits is that the structures that are constructed this way are very strong and durable. This is why this method is often used for structures that will need to endure heavy weights or bad weather conditions. Steel is also a very versatile building material. This ensures that the steel can be shaped and used for a multitude of different types of purposes. It can be surprisingly flexible, so this makes for a large window of creativity in design as well. Most structural steel is also easy to assemble. This is a benefit because workers can be trained quickly to assist with construction projects.

Q: What Structures Use Steel?

A: This type of material can use on a huge spectrum of structures. These can include bridges, stadiums, amusement park rides, buildings, and more. Basically, any building that is in need of flexibility and durability will benefit from steel.

Q: How Is Steel Fabricated?

A: There are many steps involved in the fabrication of structural steel. The first step is usually the cutting of the steel. This involves precise machinery. Shaping is also an important step in the process as well. Shaping is often done with heat. Assembling the steel components is carried out by workers who have been trained in steel manufacturing and assembly.

Q: What are the different types of steel used in structural steel fabrication?

A: There are several different types of steel that are commonly used in structural steel fabrication. Some of the most common types include carbon steel, stainless steel, and alloy steel. Each type of steel has its own unique properties and characteristics, which make it suitable for different types of construction projects.

Q: What factors should be considered when choosing a structural steel fabricator?

A: When choosing a structural steel fabricator, there are several factors to consider. These include the fabricator’s experience and expertise, their reputation in the industry, their level of customer service, and their pricing. It is also important to choose a fabricator who uses high-quality materials and who has experience following industry standards and regulations.

Q: What are some common challenges in structural steel fabrication?

A: There are several common challenges that can arise during the structural steel fabrication process. These can include issues with accuracy and precision during the cutting and shaping process, difficulties with welding or bolting components together, and challenges related to transportation and installation. It is important to work with an experienced and skilled fabricator who can anticipate and address these challenges to ensure a successful, on-time construction project.

Q: How long does the structural steel fabrication process take?

A: The length of the structural steel fabrication process can vary depending on the size and complexity of the project. Generally, smaller and simpler projects will take less time to fabricate than larger and more complex ones. It is important to work with a fabricator who can provide a detailed timeline and schedule for the fabrication process to ensure that the project is completed on time and within your budget.

Q: What is structural steel fabrication?

A: Structural steel fabrication is the process of manufacturing steel components that are used in the construction of buildings, bridges, and other structures. The process involves cutting, shaping, and assembling heavy-duty steel components to create a final product that can be used in construction.

Q: What are the benefits of using structural steel in construction?

A: There are many benefits to using structural steel in construction. Steel is incredibly strong and durable, making it an ideal material for building structures that need to withstand heavy loads or harsh weather conditions. Additionally, steel is a versatile material that can be fabricated into a wide variety of shapes and sizes, allowing for greater flexibility and creativity in the design of a building. Structural steel is also easy to assemble and install, which can save time and money during the construction process. Finally, steel is a sustainable material that is 100% recyclable, making it an environmentally-friendly choice for large construction projects.

Q: What types of structures can be built using structural steel?

A: Structural steel fabrication can be used to build a wide variety of structures, including buildings, bridges, stadiums, and even roller coasters. Any structure that requires strength, durability, and flexibility can benefit from the use of structural steel.

Q: What precautions to take with structural steel projects?

A: Corrosion - Structures that are exposed to harsh climatic conditions, like marine projects, require corrosion resistant alloys. However, other structures may also be vulnerable to corrosion. You should check whether the structure needs to be treated against corrosion with paint or other products.
Fire Resistant - Steel doesn't easily catch on fire, making it a safe choice. However other materials within the building may result in fires. Very high temperatures caused by fires can weaken steel, causing it to soften and buckle. For this reason it's advisable to insulate steel used in the structure against heat damage.

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