Angle steel GB Q235B 20-250MM high quality hot rolled

Angle steel GB Q235B 20-250MM high quality hot rolled System 1

Angle steel GB Q235B 20-250MM high quality hot rolled

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 25 m.t.

Supply Capability:: 20000 m.t./month

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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: Can steel angles be used for signposts and traffic signals?: Yes, steel angles can be used for signposts and traffic signals as they provide strength and stability required for supporting these structures.

Q: What is the maximum length of a steel angle that can be transported?: The maximum length of a steel angle that can be transported depends on various factors, including transportation regulations and limitations, the size and capacity of the transport vehicle, and any logistical constraints. In general, standard transport vehicles like trucks or trailers can typically accommodate steel angles up to a certain length, often around 40 feet (12.2 meters). These vehicles may have limitations on the length of cargo they can carry due to road transportation regulations or physical constraints. However, it's important to note that specialized transport options, such as flatbed trucks or lowboy trailers, may be available to accommodate longer steel angles. These specialized vehicles are designed to carry oversized or heavy loads and may have extended cargo beds or adjustable trailers to accommodate longer lengths. Ultimately, the maximum length of a steel angle that can be transported will vary depending on the specific circumstances and available transport options. It is recommended to consult with transportation professionals or logistics experts to determine the best and most suitable means of transporting steel angles of varying lengths.

Q: Can steel angles be used in the construction of transmission towers?: Indeed, transmission towers can incorporate steel angles in their construction. Due to their immense strength, durability, and adaptability, steel angles are frequently employed as structural components in a variety of construction projects. In the realm of transmission tower construction, steel angles are frequently utilized to provide the necessary support and stability. They serve multiple functions, such as bracing and forming cross arms, alongside other crucial structural elements of the tower. These angles are typically crafted from high-strength steel, allowing them to endure the heavy loads and harsh environmental conditions to which transmission towers are subjected. Moreover, steel angles can be effortlessly fabricated, connected, and erected, rendering them an economically viable choice for transmission tower construction.

Q: How do you design connections for steel angles to steel beams?: Designing connections between steel angles and steel beams requires careful consideration and a step-by-step approach. Here is a general overview of the process: 1. Load determination: The first step involves identifying the loads that will impact the connection. These include vertical and horizontal loads, as well as any moments applied. These loads are crucial in determining the required strength of the connection. 2. Selection of appropriate materials: Based on the loads and design criteria, suitable steel angles and beams must be chosen for the connection. Factors such as material grade, size, and shape should be taken into account. 3. Connection analysis: The connection is analyzed to determine the necessary strength. This involves calculating shear, moment, and axial forces that will act on the connection. Structural analysis methods are employed, considering both service loads and ultimate strength requirements. 4. Connection type determination: Once the analysis is complete, the appropriate connection type is selected. Common options include bolted, welded, or a combination of both. Factors such as available space, ease of construction, and structural requirements are considered. 5. Connection design: The connection is designed to meet the required strength and performance criteria. This includes determining the number, size, and layout of bolts or welds, as well as any additional reinforcement or stiffeners that may be necessary. Shear, moment, and axial force resistance, along with adherence to design codes and standards, are considered. 6. Detailing and fabrication: Detailed drawings and specifications, including dimensions, tolerances, and material specifications, are provided for the connection. Coordination with fabricators and contractors ensures accurate fabrication and installation. 7. Quality control and inspection: Throughout fabrication and construction, quality control checks and inspections are conducted to ensure correct fabrication and installation of the connection. Visual inspections, non-destructive testing, and load testing, if required, are performed. Consulting with a structural engineer or experienced professional in steel connection design is essential to ensure the connection is designed safely and complies with applicable building codes and standards.

Q: How do steel angles provide structural support?: Steel angles provide structural support by distributing and transferring loads and forces in various structures. They are commonly used as braces or brackets to reinforce and stabilize beams, columns, and other members. The L-shaped design of steel angles allows them to resist bending and provide strength and rigidity to the structure. They can be bolted or welded to the main structural components, thereby increasing their load-carrying capacity and overall stability.

Q: How do you store and transport steel angles?: In order to ensure the safety and prevent damage of steel angles during storage and transportation, it is crucial to adhere to specific guidelines. Consider the following steps: 1. Find an appropriate storage location: Locate a well-ventilated, dry, and clean area that is free from moisture or chemicals that may cause corrosion. Ideally, choose an indoor storage area to shield the steel angles from the elements. 2. Properly organize and stack: Prioritize organizing the steel angles according to their size, shape, and weight. Stack them horizontally, one on top of another, with heavier angles at the bottom to prevent deformation or damage to lighter ones. Insert wooden or rubber spacers between layers to minimize direct contact and reduce the risk of scratches or other surface flaws. 3. Secure the stack: Use strong metal bands, straps, or chains to tightly bind the stack of steel angles. This will prevent movement during transportation and decrease the chances of accidents or damage. 4. Utilize appropriate lifting equipment: When handling steel angles, it is crucial to employ suitable lifting equipment such as cranes, forklifts, or hoists. Ensure that the equipment has the necessary capacity to safely lift the angles and distribute the lifting points evenly to avoid bending or distortion. 5. Guard against corrosion: Prior to storage and transportation, apply a corrosion-resistant coating or protective oil film to the steel angles. This will help prevent rusting and other forms of corrosion caused by exposure to moisture or environmental factors. 6. Secure packaging during transportation: If the steel angles need to be transported over long distances, consider using appropriate packaging materials like wooden crates or steel pallets to provide additional protection. Fasten the angles securely to the packaging to prevent any movement or shifting during transit. 7. Regularly inspect: Conduct regular inspections of the stored and transported steel angles to identify any signs of corrosion, damage, or deformation. Take immediate action to prevent further deterioration if any issues are detected. By adhering to these guidelines, you can ensure the safe storage and transportation of steel angles, thereby minimizing the risk of damage and preserving their quality.

Q: How do you determine the center of gravity for a steel angle?: To determine the center of gravity for a steel angle, you need to consider its shape and dimensions. The center of gravity is the point where the weight of the object is evenly distributed, and finding this point is crucial for understanding its stability and balance. First, measure the length, width, and thickness of the steel angle. These measurements will help you calculate the area and volume of the angle, which are essential for determining the center of gravity. Next, locate the centroid of the steel angle. The centroid is the geometric center of the object, and it represents the point where all the weight is concentrated. For a symmetrical steel angle, the centroid will be at the intersection of the two axes of symmetry. However, if the angle is asymmetrical, finding the centroid might require more complex calculations. To calculate the centroid, use the formulas for the area moment of inertia. These formulas depend on the shape of the angle. For example, if the angle is a simple L-shape, the centroid can be determined by finding the average of the coordinates of the two legs' centroids. Once you have determined the centroid, you can then locate the center of gravity. The center of gravity coincides with the centroid of the steel angle in uniform density objects. However, for objects with non-uniform density, additional calculations might be required to account for variations in weight distribution. In summary, determining the center of gravity for a steel angle involves measuring its dimensions, calculating the centroid based on its shape, and then locating the center of gravity. This information is crucial for understanding the angle's stability and balance, especially in applications where it will be subjected to external forces or loads.

Q: Can steel angles be used for fencing and gate construction?: Indeed, fencing and gate construction can make use of steel angles. The strength and durability of steel angles make them a prevalent choice in construction endeavors. They furnish robust frameworks for fencing and gate structures, delivering support and stability. The process of welding or bolting steel angles together is a simple means of achieving the desired shape and size for fencing and gate construction. Moreover, steel angles possess exceptional resistance to corrosion, rendering them suitable for outdoor applications. In summary, steel angles present themselves as a versatile and dependable option for fencing and gate construction.

Q: How do you calculate the load-bearing capacity of a steel angle?: To calculate the load-bearing capacity of a steel angle, several factors need to be considered. These factors include the dimensions and properties of the angle, the material it is made of, and the method of loading. First, it is crucial to determine the dimensions of the steel angle, such as its length, width, and thickness. These dimensions will directly impact the strength and load-carrying capacity of the angle. The length and width will determine the surface area available to distribute the load, while the thickness will affect the overall stiffness and resistance to bending. Next, the material properties of the steel angle must be known. This includes the yield strength, which is the maximum amount of stress the material can withstand before it begins to deform permanently. The yield strength can usually be found in engineering handbooks or by consulting the manufacturer's specifications. Once the dimensions and material properties are known, the method of loading must be taken into account. There are three main types of loads that can be applied to a steel angle: axial, bending, and shear. Axial loads act along the length of the angle, causing compression or tension. Bending loads cause the angle to bend or deflect, while shear loads try to slide one part of the angle relative to the other. To calculate the load-bearing capacity, engineers typically use various formulas and principles of structural mechanics. For axial loads, the capacity can be determined by dividing the yield strength of the material by an appropriate safety factor. For bending loads, the moment of inertia and the distance from the neutral axis play a crucial role. Shear loads are calculated based on the shear strength of the material. It is important to note that structural design and load calculations should be performed by qualified professionals, such as structural engineers or designers. They have the knowledge and expertise to accurately assess the load-bearing capacity of a steel angle and ensure it meets safety standards and building codes.

Q: What is the process of cold bending steel angles?: Manipulating steel angles into a desired shape without using heat is the process of cold bending. This involves applying force or pressure to the angles in a controlled manner. To begin, a bending machine or fixture securely holds the steel angle in place during bending. The operator then determines the desired angle and bend radius, which dictate the required force. Subsequently, pressure is gradually applied by the bending machine or fixture to bend the steel angle to the desired shape. This force is applied slowly and evenly to prevent any deformation or damage. Throughout the bending process, it is crucial to monitor the angle and ensure even and smooth bending. Adjustments to the pressure or angle may be necessary to achieve the desired shape. Once the steel angle has been bent to the desired angle, it is cautiously removed from the bending machine or fixture to prevent any distortion or damage. Cold bending steel angles have various advantages over hot bending, including reduced risk of material distortion or weakening caused by heat. It also allows for more precise and controlled bending, making it ideal for applications where accuracy is vital. In conclusion, cold bending steel angles involves securely positioning the angle in a bending machine or fixture, applying gradual and controlled pressure to bend it to the desired shape, and carefully removing the bent angle for further use.

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