Angle Steel
Why choose us?
After more than ten years of development, we have won a good reputation among customers in Europe, Africa, Latin America, Southeast Asia, the Middle East and other regions. We maintain cooperation with many domestic and foreign agents and distributors and look forward to your joining!
Strong Production Capacity
Tangshan Xunzhuo International Trade Co., Ltd. is a steel group company integrating the steel industry and international trade. We have 7 production lines, more than 500 employees, and a monthly production capacity of 100,000 tons, completing orders for customers efficiently and timely.
Complete Range of Products
The company's main products include galvanized steel coils, galvalume steel coils, color-coated steel coils, corrugated steel roof panels, cold-rolled hard steel, aluminum color-coated coils, tinplate, TFS and other plates as well as angle steel, channel steel, H-shaped steel, Wire rod, rebar/rebar, steel pipe, steel strip, etc.
Strict Quality Inspection
Professional technical quality inspection personnel conduct quality inspections on the products ordered by customers. From production, packaging to transportation, they carefully conduct quality tracking throughout the entire process to ensure that customers receive satisfactory products.
Professional Service
We have a professional service team and a complete sales process. All personnel in each position of the company have more than many years of foreign work experience. The overall team has professional knowledge, contract performance capabilities and risk resistance capabilities to provide customers with professional and high-quality services.
Introduction to Angle Steel
Steel Angles are the most basic type of roll-formed steel. They are formed by bending a single angle in a piece of steel. Angle Steel is “L” shaped; the most common type of steel angles are at a 90 degree angle. The legs of the “L” can be equal or unequal in length. Steel angles are used for various purposes in a number of industries. Framing is one of the most common uses for steel angles, but steel angles are also used for brackets, trim, reinforcements, and many other uses. The larger the steel angle, the more weight and stress it can bear.
Equal Angle
Equal steel angles have 2 axe's that are the same length, hence their name. They are the most common types of steel section and can be made to various specs and cut to any size, making them extremely versatile. Their sizing is represented by side A x side B x thickness.
Unequal Angle
Unequal steel angles are also right-angled; however, they have different sized axis’ making them L-shaped. This section is much stronger (up to 20%) with a much higher strength to weight ratios. Their sizing is represented by side A x side B x thickness.
Finishes of Angle Steel
Raw Angles
Black steel angles are non-primed, raw products that are comparatively lighter and cheaper than primed, galvanised and duragal finishes. Black angles come in full lengths or can be cut to size to meet your project needs. They are also the preferred choice when fabrication is required since there’s no coating that can be affected during the fabrication process. Angles can then be primed or galvanised after fabrication.
Duragal Angles
Duragal angles utilise innovative Magnelis coating technology to provide a smooth and consistent finish. They offer superior strength and protection against corrosion which makes them perfect for long-lasting structures that need to withstand various conditions. Duragal angles are also significantly lighter than traditional hot rolled sections and are stocked in smaller sizes to suit a variety of steel projects.
Primed Angles
Primed angles perform an anti-corrosion effect, while giving the steel an aesthetically-pleasing appearance. All primed angles are factory-controlled at Melsteel to ensure complete coverage and protection. Angles are first prepared using a shot blasting machine to roughen the surface for superior paint adhesion. The paint is then sprayed onto the steel surface to provide a protective layer to significantly increase the lifespan of the steel.
Galvanised Angles
Galvanising is the process of applying a protective zinc coating to prevent rusting and scratches, while also strengthening the integrity of the steel. The angle is usually hot-dipped galvanised, where its submerged in a bath of molten zinc. While galvanising is the more expensive option, its benefits are second to none. It provides outstanding resistance to mechanical damage in transport, erection and service. Its long lifespan and reliability is often why galvanised angles are used in outdoor and indoor construction projects.
ASTM A36
Standard specification for carbon structural steel. This specification covers shapes of structural quality for use in riveted, bolted, or welded construction of bridges and buildings, and for general structural purposes.
ASTM A709
Standard specification for carbon and high-strength low-alloy shapes. This specification covers shapes, and bars intended for use in bridges. Seven grades are available in four yield strengths.
ASTM A992
Standard specification for steel for structural shapes for use in building framing. This specification covers rolled shapes for use in building framing or bridges, or for general structural purposes.
ASTM A588
Standard specification for high-strength low-alloy structural steel. This specification covers shapes for welded, riveted, or bolted construction but intended primarily for use in welded bridges and buildings where savings in weight or added durability is important. The atmospheric corrosion resistance of this steel in most environments is substantially better than that of carbon steels with or without copper addition.
ASTM A572
Standard specification for high-strength low-alloy structural steel. This specification covers five grades of high-strength low-alloy shapes intended for riveted, bolted, or welded construction of bridges, or for other construction applications.
Strength and Durability
Steel angle is renowned for its exceptional strength, making it a top choice for numerous structural applications. The molecular composition of steel, combined with its L-shaped configuration, contributes to its ability to bear substantial loads and resist deformation. This inherent strength ensures a prolonged lifespan for structures and components that utilize this, thus offering both short-term resilience and long-term durability.
Resistance to Corrosion
One of the noteworthy attributes is its ability to resist corrosion, especially when treated or coated with protective layers. This resistance is particularly valuable in environments where the material is exposed to moisture, chemicals, or saline conditions. By preventing rust and corrosion, the integrity and appearance of the components remain uncompromised, making it ideal for indoor and outdoor applications.
Flexibility and Adaptability
Steel angle offers remarkable flexibility and adaptability beyond its strength and resistance to wear. Its design can suit various applications despite being a rigid material. From varying its lengths and thicknesses to bending it into specific angles other than the standard 90 degrees, it can be tailored to meet the unique requirements of different projects. This adaptability ensures that architects and engineers can innovate and optimize designs using this versatile material.
Different Uses of Steel Angles
Bridge Ways
Steel angles can be used to form any part of a bridge. For the deck, the angles can provide reinforcement to concrete and lower materials handling for constructors. Aside from this, steel angles can also be found in bridge components like arches, girders, bearings, or pedestrian pathways. Bridges with steel components have been known to last for several years or even decades, due to the material’s robustness and strength even under load bearing or environmentally impactful situations.
Warehouses
As established, steel angle bars are a type of structural product. For warehouses or any type of building construction, steel angles have been a perfect choice. They can form the foundation of a warehouse, complete the structure of a mezzanine system, or provide roofing support through a steel deck or rafter. For mezzanines, steel angles can support the elevated flooring requirements of the structure. The material is well-suited for bearing different levels of loads or impacts that may arise from equipment and storage systems used in the warehouse. This stands true even for various mezzanine designs - freestanding, rack-supported, column-connected, or shelving-supported mezzanines.
Equipment Manufacturing
Most electrical equipment or everyday household appliances to date have been made out of one form of steel or another. Some examples of these heavy machineries include the forklift, bulldozer, road roller, or excavators. Appliances may even be reinforced with steel angles - their unique shape gives protection to corners of appliances like washing machines, industrial ovens, stoves, and many more. Using steel angles in equipment-making has drastically lowered expenses for both manufacturer and consumer.
Frames
Another popular use of steel angles is framing for different structures and objects. While the basic design involves an equal (or non-equal) angled L-shaped cross-section featuring two opposing legs, it can be fabricated to attain the desired appearance. Metal stamping or punching, in particular, can create multiple openings on a steel angle to create an aesthetically pleasing framing component. Other custom-built designs can also be done on steel angle framing to support handrails, utility carts, interior moldings, trimmings, paneling, cladding, and many more.
The Intricate Process of Steel Angle Bar Manufacturing
Step 1: Raw Material Selection
When it comes to crafting superior steel angle bars, raw material selection is the crucial first step. Expert manufacturers carefully handpick the finest materials, ensuring only the best ingredients make their way into the manufacturing process. So let’s dive deeper into this fascinating journey!
Step 2: Steel Melting and Casting
Once the raw materials are selected, it’s time to transform them into molten metal. In this crucial step of steel angle bar manufacturing, the chosen metals undergo a process of intense heat and casting to create the foundation for structural strength.
Step 3: Billet Rolling
Now that the raw materials have been carefully selected, it’s time to put them through the next step of the manufacturing process - billet rolling! This is where things start to take shape. Stay tuned for more exciting updates on how steel angle bars are made!
Step 4: Hot Rolling
Once the billets are heated to their critical temperature, it’s time for the exciting hot rolling process. The steel is passed through a series of rollers, undergoing intense pressure and heat, transforming it into perfectly shaped steel angle bars. It’s like watching metal dance its way to structural strength!
Step 5: Cooling and Cutting
As the scorching hot steel angle bars emerge from the rolling mill, they enter a cooling chamber where jets of water spray them, rapidly reducing their temperature. Once cooled, these sturdy bars are ready to be cut into precise lengths for various structural applications. The journey continues!
Step 6: Straightening and Surface Treatment
After the hot rolling process, it’s time to make those steel angles perfectly straight! The angle bars go through a rigorous straightening process that ensures they are free from any bends or twists. And let’s not forget about their sleek surface treatment - it gives them that shiny finish we all love!
Step 7: Quality Control and Testing
Once the steel angle bars are manufactured, they undergo rigorous quality control and testing procedures. This ensures that every piece meets the highest standards of strength, durability, and performance. No compromises allowed when it comes to delivering top-notch products!
Step 8: Packaging and Shipping
Once the steel angle bars have undergone rigorous quality control testing, they are carefully packaged and prepared for shipping. The packaging ensures that the bars remain protected during transportation, ready to be delivered to their final destination.
How to Choose the Right Angle Bar for Your Project?
View Appearance
When purchasing, the first thing to check is the quality of the surface of the angle bar. Qualified angle bar shall not have significant defects on its surface, such as faults, nodules, and cracks. If there is a deviation in the surface shape of the angle bar, it shall not exceed the allowable range.
Material Selection
There are many types of materials for angle bar, such as ordinary carbon structural steel, low alloy high-strength steel, and steel plate bending forming. Materials need to be selected based on the usage environment and requirements.
Strength Requirements
By calculating the bending and tensile strength of the angle bar, select the angle bar specification that meets the project requirements.
Master the material and hardness of angle bar, and select suitable angle bar specifications according to the specific requirements of the project.
Select angle bar specifications that meet the load requirements of the project, combined with bending and tensile strength.
Dimensional Requirements
Understand the standard dimensions and production process of angle bar, and select appropriate angle bar specifications according to the project requirements.
Determine the specific application of angle bar in the project, determine the required size of angle bar, and select the appropriate specifications.
Considering the convenience of assembly and use of angle bar in the project, choose the appropriate specifications and sizes.
Surface Treatment
The surface treatment of angle bar is crucial for its durability and appearance. Hot dip galvanizing is a common surface treatment method that can effectively prevent angle bar from rusting and increase its lifespan. In addition, sand rolling pickling is also an effective method to improve appearance and protect steel.
Application Scenario
Select appropriate specifications and materials for the application scenarios of angle bar to ensure the quality and safety of the project.
Understand the requirements for angle bar specifications in different application scenarios and make specific choices based on the specific situation.
Considering the stress situation and usage environment of angle bar in application scenarios, choose suitable specifications and materials.
Economic Considerations
Considering the price, weight, and specifications of angle bar, choose an economical and practical angle bar specification.
Collaborate with manufacturers, distributors, wholesalers, suppliers, sellers, and companies to understand market prices and preferential policies.
Choose angle bar specifications that meet both the budget and requirements of the project, and are cost-effective.
Rust
When it comes to rust, aluminum is superior to steel. Aluminum is far more rust-resistant than steel. This is due to steel’s carbon steel makeup as it is more prone to corrosion. That said, while steel is more prone to corrosion, it is seen to have more weight-bearing strength.
Cold
Metals are known for becoming brittle when encountering extremely cold weather. Steel falls into this category. However, aluminum does not. Aluminum alloys are shown to maintain their ductility in frigid temperatures, which in turn combats any brittleness that may occur. Keep this in mind if you are completing a project which will need to withstand freezing temperatures.
Uses
This is where we begin to see steel angle and aluminum angle on the same playing field. This is mostly due to the ability for both to be used around the home for various projects. Some of these projects include bed frames, chairs, benches, support frames for air conditioning, and shelving. Both aluminum and steel angles can be utilized throughout these projects, but it ultimately comes down to weight, aesthetic, and whether it’s going to be indoors or outdoors. Whether you’re a professional handyman or just enjoy doing work around your home, these materials are a dream.
Weldability
If you need to weld angles together, steel is going to be your go-to. To preface this, aluminum is weldable, but you must be precise with how you do so. This is because aluminum angles provide much more room for error as it’s easier to cut/burn through. However, steel is a more forgiving material. Its malleability makes welding steel angles a no-brainer, especially in construction projects. Depending on the application you are comparing steel angle vs. aluminum for, you’ll need to decide if this is something that could have a big impact on your material choice.
Decorative
Steel angles are seldom, if ever, used in a decorative fashion. They are in most cases too thick to be displayed for aesthetic reasons. Therefore, an aluminum angle will be utilized in this situation. Whether it’s for door frames or window frames, aluminum’s lightweight along with its ability to be easily cleaned make steel angle obsolete in this use. While aluminum isn’t as thick, it still provides plenty of protection.
Strength
Both steel angle and aluminum angle offer high-strength options for a variety of projects. That being said, you’ll generally find that steel is a stronger option for heavier and larger structures. Aluminum is known for its lightweight, which offers many benefits, but this doesn’t always mean it’s the best choice for your project. You’ll want to ensure whichever material you choose can withstand the weight you are going to place upon it during the following stages of the construction of any structure or item.
Cost
The cost of steel angle vs. aluminum angle is going to be dependent on a variety of factors. The size of the angle you need will also impact how much you need to spend on this structural support. In general, you’ll find aluminum is a little more pricey for the size, but the type of steel you opt for could increase the price of this option also.
Fabrication
While angles are used primarily in support, they can also be used on their own. One of the most popular examples of this is creating grind bars for skating. While sparks are cool in photography and video, they do not offer the safest environment for anyone coming in contact with it. That is why grinding bars are primarily created out of aluminum angle rather than steel angle as aluminum does not spark.
Frequently Asked Questions
We're professional angle steel manufacturers and suppliers in China, specialized in providing high quality customized service. We warmly welcome you to wholesale high-grade angle steel in stock here from our factory. Contact us for quotation.