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 effect of exposure to acidic soil on steel rebars?: Exposure to acidic soil has a detrimental effect on steel rebars. The acidic environment can cause corrosion and degradation of the steel, leading to reduced structural integrity and potentially compromising the safety and performance of the reinforced concrete structures. Regular inspection and preventive measures, such as protective coatings, are necessary to minimize the impact of acidic soil on steel rebars.

Q: Can steel rebars be used in modular bridge construction?: Yes, steel rebars can be used in modular bridge construction. Steel rebars, also known as reinforcing bars, are commonly used in bridge construction to provide reinforcement and strength to the concrete elements. In modular bridge construction, precast concrete elements are used to assemble the bridge components off-site, and steel rebars are embedded within these elements to enhance their structural integrity. The use of steel rebars in modular bridge construction allows for a more efficient and cost-effective construction process. The precast elements can be manufactured in a controlled environment, ensuring high-quality and consistent production. The steel rebars are accurately placed within the elements during the manufacturing process, ensuring proper reinforcement, and eliminating the need for on-site rebar installation. Additionally, steel rebars provide the necessary strength to withstand the loads and stresses that bridges are subjected to. They help in distributing the load evenly and preventing cracking or failure of the concrete elements. The use of steel rebars in modular bridge construction ensures the durability and longevity of the bridge structure. Moreover, steel rebars can be easily integrated into the modular bridge design, allowing for flexibility and customization. Different sizes and configurations of rebars can be used based on the specific requirements of the bridge project, ensuring optimal structural performance. In conclusion, steel rebars are widely used in modular bridge construction as they provide reinforcement, strength, and durability to the precast concrete elements. Their use ensures a cost-effective and efficient construction process while maintaining the structural integrity of the bridge.

Q: What are the factors that determine the selection of steel rebars?: There are several factors that determine the selection of steel rebars for construction projects. One of the most important factors is the required strength and durability of the structure. Different grades of steel rebars have different yield strengths, which indicate the maximum amount of stress the rebar can withstand before it begins to deform. The design of the structure and the load it will bear will determine the required strength of the rebars. Another factor is the corrosion resistance of the rebars. Steel rebars are susceptible to corrosion, especially when exposed to moisture and other environmental factors. In areas with high humidity or near coastal regions, corrosion-resistant rebars may be required to ensure the longevity and structural integrity of the project. The size and shape of the rebars also play a role in their selection. The diameter of the rebar is determined by the structural requirements and the concrete cover thickness. The shape of the rebar, whether it is plain, deformed, or ribbed, also affects its bonding with the surrounding concrete. The availability and cost of the rebars are important factors as well. Some grades or types of steel rebars may be more readily available in certain regions, while others may need to be imported. The cost of the rebars will also influence the selection, as different grades and types may have varying price points. Lastly, the specifications and requirements set by local building codes and regulations must be considered. These codes often dictate the minimum standards for strength, corrosion resistance, and other factors that must be met by the rebars used in construction. Overall, the factors that determine the selection of steel rebars include required strength, corrosion resistance, size and shape, availability and cost, and compliance with local building codes and regulations. By considering these factors, engineers and construction professionals can select the most suitable rebars for their projects to ensure safety, durability, and cost-effectiveness.

Q: What is the elongation of steel rebars?: The elongation of steel rebars refers to the amount of deformation or stretching the rebars can undergo before they reach their breaking point.

Q: How do steel rebars affect the constructability of projects in environmentally sensitive areas?: Projects in environmentally sensitive areas can be influenced both positively and negatively by the use of steel rebars. On the positive side, steel rebars are widely utilized in construction due to their strength and durability. They enhance the safety and stability of buildings and infrastructure, which is crucial in areas prone to high wind or seismic activity. By enabling the construction of resilient foundations and reinforcements, steel rebars reduce the risk of environmental damage. Additionally, the sustainability of projects in environmentally sensitive areas can be enhanced through the use of steel rebars. These rebars are highly recyclable, reducing the need for new raw materials and minimizing the environmental impact of resource extraction and processing. Incorporating steel rebars into construction projects can effectively reduce the carbon footprint, aligning with environmental conservation goals. However, there are also negative implications associated with steel rebars in environmentally sensitive areas. The production of steel emits greenhouse gases, contributing to climate change, which can harm fragile ecosystems and vulnerable species. Furthermore, the extraction of iron ore for steel production can lead to habitat destruction and deforestation, further impacting the environment. The transportation of steel rebars to construction sites in environmentally sensitive areas can also present challenges. It often requires the use of heavy machinery and vehicles, which if not properly managed, can cause soil compaction and erosion. This disturbance can disrupt natural habitats and affect the water quality of nearby rivers and streams. In conclusion, while steel rebars offer numerous benefits to projects in environmentally sensitive areas, they also present environmental challenges. It is crucial for construction companies and project stakeholders to carefully consider the sourcing, production, and transportation of steel rebars. Exploring alternative construction materials and techniques with lesser impact on the environment, as well as adopting sustainable practices like recycling steel rebars and reducing carbon emissions, can improve the constructability of projects in environmentally sensitive areas while mitigating their potential negative effects on the environment.

Q: How do steel rebars affect the overall thermal stability of a structure?: Steel rebars can significantly affect the overall thermal stability of a structure due to their thermal conductivity properties. Thermal stability refers to the ability of a structure to withstand changes in temperature without experiencing significant deformation or damage. Steel rebars have high thermal conductivity, which means they can efficiently transfer heat throughout a structure. This property can have both positive and negative effects on the thermal stability of the structure. On the positive side, steel rebars can help in dissipating heat from the structure, preventing the concentration of heat in specific areas. This can prevent localized thermal expansion, which can lead to cracks and structural failures. By evenly distributing heat, steel rebars can improve the overall thermal stability of the structure. On the negative side, steel rebars can also conduct heat to colder areas of the structure, leading to thermal gradients. This can result in differential expansion and contraction, causing stress and potential damage to the structure. Additionally, during fire incidents, steel rebars can rapidly heat up and transfer the heat to the surrounding concrete, reducing its strength and compromising the overall stability of the structure. To mitigate these potential negative effects, engineers and architects must carefully consider the design, placement, and spacing of steel rebars within the structure. By ensuring proper reinforcement layout and utilizing insulation materials, the thermal stability can be enhanced. Additionally, incorporating fire-resistant coatings or insulation around the rebars can help minimize the effects of heat transfer during fire incidents. In conclusion, steel rebars can significantly impact the overall thermal stability of a structure. While their high thermal conductivity can aid in dissipating heat, it can also lead to thermal gradients and potential damage. By carefully considering the design and incorporating appropriate measures, the negative effects of steel rebars on thermal stability can be minimized, ensuring the long-term durability and safety of the structure.

Q: How are steel rebars used in the construction of tunnels and underground passages?: Steel rebars, also known as reinforcing bars, are indispensable in the construction of tunnels and underground passages. They provide essential strength and stability to the concrete structure. In tunnel construction, rebars are strategically placed within the concrete to reinforce it and prevent cracking or collapsing. The rebars act as a framework for the concrete, distributing the load and reinforcing its structural integrity. They are typically arranged in a grid pattern throughout the tunnel walls, floor, and ceiling. One of the main reasons for using rebars in tunnel construction is their ability to withstand tension forces. Tunnels face significant pressure from the surrounding soil and water, and without proper reinforcement, the concrete would easily crack under this pressure. By adding steel rebars, the concrete's tensile strength is greatly increased, ensuring it can withstand external forces. Furthermore, rebars also play a crucial role in controlling and preventing crack propagation. If a crack occurs, the rebars act as a barrier, preventing the crack from spreading throughout the structure. This is particularly important in tunnels and underground passages, as any weakening of the concrete could jeopardize the safety of the structure and its users. Moreover, rebars are used to reinforce specific areas of the tunnel that are more susceptible to stress, such as corners, joints, and areas where heavy equipment or vehicles may pass through. By reinforcing these critical points with steel rebars, the overall structural integrity of the tunnel is significantly enhanced. In conclusion, the use of steel rebars in tunnel and underground passage construction is essential for ensuring the strength, stability, and long-term durability of these structures. They play a vital role in preventing cracking, controlling crack propagation, and enhancing the overall durability of the concrete.

Q: What is the tensile strength of steel rebars?: The tensile strength of steel rebars typically ranges from 400 to 600 megapascals (MPa).

Q: How are steel rebars cut and bent on-site?: Steel rebars are cut and bent on-site using specialized equipment such as rebar cutters and benders. The rebars are measured, marked, and then cut to the required length using the cutter. After cutting, the rebars are placed into the bender machine where they are bent to the desired shape or angle. This process ensures that the rebars are tailored to fit the specific construction requirements of the project.

Q: What are the guidelines for the proper anchoring of steel rebars in walls?: To ensure the structural integrity and stability of the construction, it is crucial to properly anchor steel rebars in walls. Here are some guidelines to adhere to for the correct anchoring of steel rebars in walls: 1. Determine the necessary rebar size and spacing: The design specifications and load requirements dictate the size and spacing of rebars. Consult a structural engineer or refer to building codes for the appropriate rebar size and spacing. 2. Clean and prepare the concrete surfaces: Prior to anchoring the rebars, ensure that the concrete surfaces are clean and devoid of dust, debris, and loose material. Utilize a wire brush or compressed air to eliminate any contaminants. 3. Employ appropriate anchoring techniques: The most widely used method for anchoring steel rebars in walls is embedding them into the concrete. Ensure secure embedding by following these steps: a. Drill holes: Drill holes in the concrete wall at designated locations and depths, ensuring the hole diameter matches the rebar size. b. Clean the drilled holes: Utilize compressed air or a brush to remove any dust or debris from the drilled holes. c. Insert rebars: Insert the rebars into the drilled holes, making sure they reach the required embedment depth. d. Maintain proper spacing: Follow design requirements to maintain the specified spacing between rebars. e. Secure rebars: Use suitable anchoring materials like epoxy resin or grout to secure the rebars in place. Adhere to the manufacturer's instructions for mixing and applying the anchoring material. f. Verify proper alignment: Before the anchoring material sets, ensure the rebars are correctly aligned both horizontally and vertically. 4. Allow sufficient curing time: After anchoring the rebars, allow ample time for the anchoring material to cure. This guarantees that the rebars are firmly secured in place. 5. Adequately protect the rebars: Once the rebars are anchored, protect them from corrosion by applying a suitable corrosion-resistant coating or by using corrosion-resistant rebars. It is imperative to adhere to these guidelines, as improper anchoring of steel rebars can compromise the structural integrity of the walls and pose safety risks. Always consult a qualified structural engineer or building professional for specific guidelines tailored to your project.

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