Carbon Steel Mild Angle of Middle Sizes Chinese Standard Q235

Carbon Steel Mild Angle of Middle Sizes Chinese Standard Q235 System 1

Carbon Steel Mild Angle of Middle Sizes Chinese Standard Q235

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Loading Port:: Tianjin

Payment Terms:: TT or LC

Min Order Qty:: 25 m.t.

Supply Capability:: 30000 m.t./month

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1. Structure of Carbon Steel Mild Angle of Middle Sizes Chinese Standard Description:

Carbon steel mild angle is a main kind of structure steel and the section is like a letter L. We use carbon steel mild angle for structure construction. Carbon steel mild angle can be erected as soon as the materials are delivered on site. High strength, stiffness, toughness, and ductile properties are advantages of this kind of carbon steel mild angle.

2. Main Features of Carbon Steel Mild Angle of Middle Sizes Chinese Standard:

• Strength - Having high strength, stiffness, toughness, and ductile properties, structural steel is one of the most commonly used materials in commercial and industrial building construction.

• Constructability - Steel equal angle Bar can be developed into nearly any shape, which are either bolted or welded together in construction. Structural steel can be erected as soon as the materials are delivered on site, whereas concrete must be cured at least 1–2 weeks after pouring before construction can continue, making steel a schedule-friendly construction material.

• Fire resistance - Steel is inherently a noncombustible material. However, when heated to temperatures seen in a fire scenario, the strength and stiffness of the material is significantly reduced. The steel equal angle bar can be enveloped in sufficient fire-resistant materials, increasing overall cost of steel structure buildings.

3. Carbon Steel Mild Angle of Middle Sizes Chinese Standard Images:

Carbon Steel Mild Angle of Middle Sizes Chinese Standard Q235

4. Carbon Steel Mild Angle of Middle Sizes Chinese Standard Specification:

Angle	KG/M	Angle	KG/M	Angle	KG/M	Angle	KG/M
20X20X3	0.889	60X60X5	4.570	90X90X8	10.946	130X130X12	23.600
20X20X4	1.145	60X60X6	5.427	90X90X9	12.220	130X130X13	25.400
25X25X2	0.763	63X63X4	3.907	90X90X10	13.476	130X130X14	27.200
25X25X3	1.124	63X63X5	4.822	90X90X15	15.940	130X130X16	30.900
25X25X4	1.459	63X63X6	5.721	100X100X6	9.366	140X140X10	21.488
30X30X2	0.922	63X63X8	7.469	100X100X7	10.830	140X140X12	25.522
30X30X3	1.373	63X63X10	9.151	100X100X8	12.276	140X140X14	29.490
30X30X4	1.786	70X70X4	4.372	100X100X10	15.120	140X140X15	31.451
36X36X3	1.656	70X70X5	5.397	100X100X12	17.898	140X140X16	33.393

5. FAQ

We have organized several common questions for our clients，may help you sincerely:

①How about the corrosion of the products？

When the steel equal angle bar in contact with water, can corrode, creating a potentially dangerous structure. Measures must be taken in structural steel construction to prevent any lifetime corrosion. The steel can be painted, providing water resistance. Also, the fire resistance material used to envelope steel is commonly water resistant.

②How to inspect the quality？

We have a professional inspection group which belongs to our company. We resolutely put an end to unqualified products flowing into the market. At the same time, we will provide necessary follow-up service assurance.

③What is the difference between steel angle bar and traditional material?

Steel equal angle bar differs from concrete in its attributed compressive strength as well as tensile strength.

Q:Can steel angles be painted over?: Yes, steel angles can be painted over. Prior to painting, it is important to clean and prepare the surface by removing any rust, dirt, or grease. Applying a primer will help improve adhesion and longevity of the paint. Once the primer is dry, a suitable paint can be applied to achieve the desired finish and protect the steel angles from corrosion.

Q:What are the different types of steel angles connections for roof trusses?: Roof trusses commonly utilize different types of steel angle connections to ensure strong and stable support. These connections are crucial for maintaining the structural integrity of the roof. One frequently employed steel angle connection is the gusset plate connection. This method involves using triangular steel plates to connect the truss members at their intersection points. To establish a secure connection, these plates are typically welded or bolted to the steel angles. Another type of steel angle connection is the angle cleat connection. This approach relies on steel angles to connect the truss members using bolts or welding. These angles are usually bolted or welded to the top and bottom chords of the truss, adding strength and stability. A third option is the angle clip connection, which employs steel clips or brackets to connect the truss members at their intersection points. These clips are typically bolted or welded to the steel angles, creating a robust and secure connection. Lastly, there is the angle bracket connection. This type of connection involves using steel brackets or brackets to connect the truss members. The brackets are typically bolted or welded to the steel angles, providing a reliable and sturdy connection. In summary, various types of steel angle connections can be used for roof trusses, each offering distinct advantages and characteristics. The choice of connection depends on factors such as design requirements, load-bearing capacity, and construction methods.

Q:What is the difference between hot-rolled and cold-formed steel angles?: Hot-rolled steel angles and cold-formed steel angles are both used in various construction and industrial applications, but they differ in their manufacturing processes and resulting characteristics. Hot-rolled steel angles are produced by heating a steel billet or slab above its recrystallization temperature and then passing it through a series of rollers to achieve the desired shape. This process allows for the formation of bends, curves, and other complex angles. Hot rolling also results in a rougher surface finish and a slightly rounded edge, which may be favorable in certain applications. Additionally, hot-rolled steel angles tend to have a wider range of sizes and thicknesses available. On the other hand, cold-formed steel angles are made by bending a flat strip of steel at room temperature using a series of dies and rolls. This process does not involve heating the steel, which maintains its existing physical properties. As a result, cold-formed steel angles have a smoother surface finish and sharper, more defined edges compared to hot-rolled angles. The cold-forming process also allows for tighter tolerances and more precise dimensions. In terms of mechanical properties, hot-rolled steel angles generally have higher tensile strength and yield strength compared to cold-formed angles. This is due to the heat treatment involved in hot rolling, which refines the grain structure and enhances the overall strength of the steel. Cold-formed steel angles, while usually less strong, are often preferred in applications where weight reduction is a priority, as they are generally lighter than their hot-rolled counterparts. In summary, the main differences between hot-rolled and cold-formed steel angles lie in their manufacturing processes, resulting surface finish, dimensional precision, and mechanical properties. The choice between the two depends on the specific requirements and constraints of the project at hand.

Q:Can steel angles be used for reinforcement bars?: No, steel angles cannot be used as reinforcement bars. Reinforcement bars are typically made of plain or deformed steel bars that are designed specifically for providing strength and stability to concrete structures. Steel angles, on the other hand, are primarily used for structural support or framing purposes and are not suitable for use as reinforcement bars.

Q:Can steel angles be used in the construction of solar panel support structures?: Yes, steel angles can be used in the construction of solar panel support structures. Steel angles provide structural support and stability, making them suitable for holding solar panels in place and withstanding various weather conditions.

Q:How do steel angles contribute to the overall sustainability of a building?: Steel angles contribute to the overall sustainability of a building in several ways. Firstly, steel angles are made from recycled materials, making them a sustainable option for construction. Steel is one of the most recycled materials in the world, with a high recycling rate, reducing the need for virgin resources and minimizing the environmental impact of extraction and production. Additionally, steel angles offer structural efficiency, which means that they can support larger loads with less material compared to other building materials. This efficiency reduces the amount of steel required in construction, minimizing the carbon footprint associated with steel production and transportation. Furthermore, steel angles are highly durable and long-lasting. They have a high resistance to corrosion, fire, and pests, which reduces the maintenance and replacement needs over the building's lifespan. This durability translates into reduced waste generation and lower life-cycle costs, making the building more sustainable in the long run. Moreover, steel angles are versatile and can be easily reused or repurposed. If a building needs to be renovated or demolished, the steel angles can be salvaged and reused in other construction projects. This promotes a circular economy approach and minimizes waste generation, contributing to the overall sustainability of the construction industry. Lastly, steel angles have excellent thermal properties, which can enhance the energy efficiency of a building. They can be used as part of the building envelope, helping to reduce energy consumption for heating and cooling. By improving the insulation and airtightness of a building, steel angles contribute to lower energy demand and reduced greenhouse gas emissions. In conclusion, steel angles contribute to the overall sustainability of a building through their recycled content, structural efficiency, durability, recyclability, and energy-saving properties. By choosing steel angles in construction, we can promote resource conservation, reduce waste generation, and minimize the environmental impact of the built environment.

Q:Are steel angles available in different alloys?: Yes, steel angles are available in different alloys. Steel angles are typically made from carbon steel, which is the most common and versatile type of steel. However, there are also other alloys available for specific applications. For example, stainless steel angles are made from an alloy that contains chromium, which provides increased resistance to corrosion. Additionally, there are high-strength low-alloy (HSLA) steel angles that are made with a combination of carbon steel and small amounts of other elements like manganese, phosphorus, or sulfur to enhance their strength and durability. Overall, the availability of different alloys for steel angles allows for a wide range of applications and properties to meet specific needs in various industries.

Q:How do you prevent galvanic corrosion between steel angles and aluminum components?: One effective way to prevent galvanic corrosion between steel angles and aluminum components is by using a barrier such as a non-conductive coating or a primer. Applying a layer of paint or epoxy on the steel angles can create a protective barrier between the two metals, preventing direct contact and reducing the likelihood of corrosion. Additionally, using isolation materials like rubber or plastic gaskets between the steel and aluminum can also help minimize galvanic corrosion. Regular inspection and maintenance, including ensuring proper drainage and reducing moisture exposure, can further contribute to preventing galvanic corrosion in this scenario.

Q:What are the disadvantages of using steel angles?: Some disadvantages of using steel angles include their susceptibility to corrosion and rust, limited design options due to their fixed angle shape, and their heaviness which can make them difficult to handle and install. Additionally, steel angles may require additional reinforcement and support to prevent bending or twisting under heavy loads.

Q:Are steel angles resistant to UV radiation?: Steel angles are not inherently resistant to UV radiation. However, the level of resistance can vary depending on the type of steel used and the protective coating applied to the surface. Unprotected steel angles, such as hot-rolled or cold-formed steel, are susceptible to degradation and corrosion when exposed to UV radiation over time. The ultraviolet rays can cause the steel to oxidize, leading to rust formation and structural weakness. To mitigate the effects of UV radiation, steel angles can be coated with protective finishes such as galvanized zinc, paint, or powder coating. These coatings serve as a barrier between the steel and the environment, providing resistance to UV radiation and preventing oxidation and corrosion. It is important to note that even with protective coatings, prolonged exposure to intense UV radiation can still cause some deterioration over time. Therefore, regular inspection and maintenance are necessary to ensure the longevity and structural integrity of steel angles in outdoor or UV-exposed applications.

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