ANGLE STEEL 30-250MM

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Loading Port:: China Main Port

Payment Terms:: TT OR LC

Min Order Qty:: -

Supply Capability:: -

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Angle Steel Details:

Minimum Order Quantity:	25mtons	Unit:	m.t.	Loading Port:	China Main Port
Supply Ability:	80000-100000MTS/YEAR	Payment Terms:	TT or LC

Product Description:

Specifications of Angle Steel

1. Invoicing on theoretical weight or actual weight as customer request

2. Length: 6m, 9m, 12m as following table

3. Sizes

Angle Steel

Sizes: 25mm-250mm
a*t
25*2.5-4.0	70*6.0-9.0	130*9.0-15
30*2.5-6.6	75*6.0-9.0	140*10-14
36*3.0-5.0	80*5.0-10	150*10-20
38*2.3-6.0	90*7.0-10	160*10-16
40*3.0-5.0	100*6.0-12	175*12-15
45*4.0-6.0	110*8.0-10	180*12-18
50*4.0-6.0	120*6.0-15	200*14-25
60*4.0-8.0	125*8.0-14	250*25

5. Payment terms:

1).100% irrevocable L/C at sight.

2).30% T/T prepaid and the balance against the copy of B/L.

3).30% T/T prepaid and the balance against L/C

6.Material details:

Alloy No	Grade	Element (%)
		C	Mn	S	P	Si
		C	Mn	S	P	Si

Q235	B	0.12—0.20	0.3—0.7	≤0.045	≤0.045	≤0.3

Alloy No	Grade	Yielding strength point( Mpa)
		Thickness (mm)
		≤16	＞16--40		＞40--60	＞60--100
		≥

Q235	B	235		225	215	205
Alloy No	Grade	Tensile strength (Mpa)	Elongation after fracture (%)
		Tensile strength (Mpa)	Thickness (mm)
			≤16	＞16--40	＞40--60	＞60--100
			≥

Q235	B	375--500	26	25	24	23

Usage & Applications of Angle Steel

According to the needs of different structures, Angle can compose to different force support component, and also can be the connections between components. It is widely used in various building structures and engineering structures such as roof beams, bridges, transmission towers, hoisting machinery and transport machinery, ships, industrial furnaces, reaction tower, container frame and warehouse etc.

Packaging & Delivery of Angle Steel

1. Packing: it is nude packed in bundles by steel wire rod

2. Bundle weight: not more than 3.5MT for bulk vessel; less than 3 MT for container load

3. Marks:

Color marking: There will be color marking on both end of the bundle for the cargo delivered by bulk vessel. That makes it easily to distinguish at the destination port.

Tag mark: there will be tag mark tied up on the bundles. The information usually including supplier logo and name, product name, made in China, shipping marks and other information request by the customer.

If loading by container the marking is not needed, but we will prepare it as customer request.

Production flow of Angle Steel

Material prepare (billet) —heat up—rough rolling—precision rolling—cooling—packing—storage and transportation

Q:What is the role of steel rebars in the construction of highway overpasses?: Steel rebars play a crucial role in the construction of highway overpasses as they provide reinforcement and strength to the concrete structures. They help to distribute the load and stress evenly, ensuring the stability and durability of the overpass. Rebars also help to resist the tensile forces that occur due to heavy traffic and environmental factors, preventing cracks and structural failures. Overall, steel rebars are essential elements that enhance the performance and safety of highway overpasses.

Q:Can steel rebars be used in the construction of shopping malls?: Yes, steel rebars can be used in the construction of shopping malls. Steel rebars provide structural reinforcement and are commonly used in the construction industry to strengthen concrete and masonry structures. They help enhance the structural integrity and durability of shopping malls, making them suitable for supporting heavy loads and ensuring the safety of the building.

Q:Are steel rebars resistant to corrosion?: Yes, steel rebars are resistant to corrosion due to their protective oxide layer, which prevents rust formation and ensures their durability in various construction applications.

Q:Can steel rebars be used in structures with limited construction materials?: Yes, steel rebars can be used in structures with limited construction materials. Steel rebars are commonly used in construction to reinforce concrete structures, such as buildings, bridges, and highways. They provide strength and stability to the structure, helping it withstand heavy loads and prevent structural failure. In areas where there may be limited construction materials available, steel rebars can be a valuable resource. They are durable and can be used in a variety of applications, making them a versatile option for construction projects. Additionally, steel rebars can be easily transported and installed, making them suitable for use in remote or hard-to-reach locations. However, it is important to consider the specific requirements and regulations of the construction project when using steel rebars. Adequate knowledge and expertise are needed to ensure proper installation and compliance with safety standards. Additionally, if there are specific limitations or restrictions on the use of certain construction materials, it is important to consult with local authorities or professionals to determine the best course of action.

Q:Can steel rebars be used in solar power plant construction?: Steel rebars are a viable option for incorporating into the construction of solar power plants. In the construction industry, steel rebars are frequently utilized to reinforce concrete structures. This is particularly relevant for solar power plants, as concrete foundations are typically necessary for installing solar panels and other equipment. By implementing steel rebars in these foundations, the structural integrity and durability of the solar power plant infrastructure can be ensured. Moreover, steel rebars possess corrosion-resistant qualities, which are especially valuable in solar power plant construction due to their exposure to a variety of weather conditions. All in all, steel rebars serve as a suitable material for reinforcing concrete structures in the construction of solar power plants.

Q:How do steel rebars prevent concrete from cracking?: Concrete cracking is prevented by steel rebars, as they reinforce it and increase its strength. When concrete is poured, it is initially in a liquid state and lacks tensile strength, making it prone to cracking under tension. However, steel rebars are embedded within the concrete structure, creating a strong bond as it hardens. The rebars function as a framework within the concrete, evenly distributing tensile forces throughout the structure. When external forces, such as load or temperature changes, act on the concrete, the rebars resist the tensile stresses that would otherwise cause cracks. This is because steel possesses significantly higher tensile strength compared to concrete. Furthermore, steel rebars also assist in managing cracks that may arise due to shrinkage during the concrete curing process. As the concrete dries and hardens, a chemical reaction causes it to shrink. This shrinkage has the potential to cause cracks, but the presence of rebars restrains excessive expansion or contraction, reducing the likelihood of cracking. Not only do steel rebars prevent cracks, but they also enhance the overall structural integrity of the concrete. They aid in evenly distributing loads, resulting in a concrete structure that is more resistant to bending, shearing, and other forces. This reinforcement ensures that the concrete can withstand anticipated loads and maintain stability over time. In summary, steel rebars play a vital role in preventing concrete from cracking by providing tensile strength and reinforcement. Through the distribution of tensile forces, control of shrinkage, and enhancement of structural integrity, they ensure that the concrete remains strong, durable, and crack-resistant. As a result, the lifespan of the concrete is prolonged, and its stability is ensured.

Q:What are the different methods of connecting steel rebars together?: The connection of steel rebars can be achieved through various methods, depending on the specific needs of the construction project. Here are some commonly used techniques: 1. Lap Splicing: This method involves overlapping two rebars and securing them together using steel wire or bars. It is a cost-effective approach, although it requires longer rebars. 2. Mechanical Splicing: By using a mechanical coupler such as a sleeve or collar, two rebars can be connected. This method offers a strong and reliable connection and allows for flexibility in rebar positioning. It is faster and more efficient than lap splicing. 3. Welding: Steel rebars can be connected by heating and fusing their ends together using an electric arc. This creates a permanent and robust connection. However, welding demands skilled labor and can be time-consuming and expensive. 4. Threaded Couplers: Similar to mechanical splicing, this method involves threading the ends of rebars and connecting them using a threaded coupler. It provides a reliable connection and is commonly used in larger construction projects. 5. Grout Sleeve Splicing: This technique incorporates a grout-filled sleeve between two rebars to establish a connection. The grout enhances strength and stability, making it suitable for seismic zones or areas requiring high strength and ductility. 6. Reinforcing Bar Couplers (RBC): RBC is a proprietary method that employs a threaded sleeve filled with epoxy resin to connect rebars. It offers high load capacity, ease of installation, and resistance to corrosion. To determine the most appropriate method for connecting steel rebars in a specific construction project, it is crucial to consult structural engineers and adhere to building codes and regulations.

Q:What are the common manufacturing processes for steel rebars?: Steel rebars are manufactured through a series of steps to guarantee the production of durable and high-quality reinforcement bars. These steps usually consist of the following: 1. Melting: Initially, raw materials such as iron ore, coal, and limestone are melted in a blast furnace. This process yields molten iron, which is further refined to eliminate impurities. 2. Casting: Subsequently, the refined molten iron is poured into molds, creating large billets or blooms. These molds, commonly known as continuous casting machines, solidify the molten iron into a rectangular form. 3. Rolling: The solidified billets or blooms are then heated and passed through rolling mills. Through this rolling process, the steel is compressed between a series of rollers, reducing its thickness and shaping it into the desired dimensions of rebars. Additionally, this process enhances the mechanical properties of the steel while eliminating any internal defects or impurities. 4. Quenching and Tempering: Following the initial rolling, the rebars may undergo quenching and tempering. Quenching involves rapidly cooling the steel bars by immersing them in water or oil. This step increases the hardness of the rebars, making them more resistant to deformation and wear. Subsequently, tempering involves reheating the quenched bars to a specific temperature and gradually cooling them. This process eliminates internal stresses and improves the toughness of the rebars. 5. Cutting and Coiling: Once the rebars have been rolled and heat-treated, they are cut to the desired lengths using cutting machines. The cut rebars are then either coiled into bundles or stacked for storage and transportation. 6. Surface Treatment: Manufacturers often apply a protective coating or surface treatment to enhance the corrosion resistance of rebars. This can be achieved through hot-dip galvanizing, where the rebars are immersed in molten zinc to form a zinc coating, or epoxy coating, where a layer of epoxy resin is applied to the rebars. It is crucial to note that these manufacturing processes may vary depending on the specific requirements and standards set by different countries and industries. Nevertheless, the aforementioned steps provide a general overview of the common processes involved in manufacturing steel rebars.

Q:Can steel rebars be used in structures with high moisture content in the environment?: Steel rebars can be used in structures with high moisture content in the environment, but certain precautions need to be taken to prevent corrosion. Moisture can accelerate the corrosion process of steel, leading to structural integrity issues over time. To mitigate this risk, several measures can be implemented. Firstly, the use of corrosion-resistant steel rebars, such as stainless steel rebars, can be considered. These rebars are specifically designed to resist corrosion in high-moisture environments, making them suitable for structures exposed to moisture. Secondly, proper concrete cover thickness should be maintained to protect the rebars from direct contact with moisture. Adequate concrete cover acts as a barrier, preventing moisture from reaching the steel surface and reducing the risk of corrosion. Additionally, the use of waterproofing materials and coatings can be beneficial in preventing moisture ingress into the structure. These materials create a protective layer on the surface of the concrete, preventing water penetration and reducing the likelihood of corrosion. Regular inspection and maintenance are crucial for structures in high-moisture environments. Periodic inspections can help detect any signs of corrosion or damage early on, allowing for timely repairs or preventive measures. In conclusion, while steel rebars can be used in structures with high moisture content, it is important to implement appropriate measures to prevent corrosion. Using corrosion-resistant rebars, maintaining proper concrete cover, and applying waterproofing materials can significantly enhance the durability and longevity of structures in such environments.

Q:Are steel rebars suitable for reinforcement in residential buildings?: Yes, steel rebars are suitable for reinforcement in residential buildings. Steel rebars provide excellent strength and durability, making them an ideal choice for reinforcing concrete structures in residential buildings. They help enhance the structural integrity of the building and ensure its long-term stability and safety.

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