Steel Angle Bar-GB Standard

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Payment Terms:: TT OR LC

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Specifications of Angle Steel

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

2. Length: 6m, 9m, 12m.

3. Sizes:

Size(mm)	Mass(Kg/m)	Size(mm)	Mass(Kg/m)
12012010	18.055	15015010	22.765
1251258	15.504	15015012	27.13
12512510	19.133

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.

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

*If you would like to get our price, please inform us the size, standard/material and quantity. Thank you very much for your attention.

Q: How do you design connections for steel angles?: Designing connections for steel angles involves several key steps. Firstly, determine the loads that the connection will need to withstand, such as vertical and horizontal forces, moments, and shear forces. This will help determine the required strength and size of the connection. Next, select an appropriate connection type based on the specific application and load requirements. Common connection types for steel angles include bolted connections, welded connections, and a combination of both. In the case of bolted connections, design the connection by calculating the required number and size of bolts based on the applied loads. Consider factors such as bolt spacing and edge distances to ensure proper load transfer and prevent failure. For welded connections, ensure that the angles are properly prepared, aligned, and welded in accordance with the applicable codes and standards. Proper welding techniques and procedures should be followed to ensure the integrity and strength of the connection. During the design process, it is important to consider factors such as material properties, joint configurations, and the potential for corrosion or fatigue. Additionally, it is essential to consult relevant design codes and standards, such as the American Institute of Steel Construction (AISC) Manual, to ensure compliance and safety. Overall, designing connections for steel angles requires careful consideration of loads, connection types, and construction techniques to ensure a secure and reliable connection that meets the structural requirements.

Q: What are the different types of steel angles used in automotive applications?: In automotive applications, various types of steel angles are commonly utilized to provide structural support and reinforcement. These angles play a critical role in ensuring the stability and strength of different components within a vehicle. 1. Equal Angles: Automotive chassis frames often incorporate equal angles, which possess identical dimensions on both sides. These angles enhance the overall structure of the vehicle, providing stability and strength. 2. Unequal Angles: When disparate lengths or widths are required in automotive applications, unequal angles come into play. These angles find extensive use in suspension systems or body reinforcement, where varying dimensions are necessary. 3. L-Angles: Also referred to as L-shaped angles or angle brackets, L-angles are widely employed in automotive applications for the purpose of joining and connecting different components. They offer stability and support to various parts, including body panels, fenders, and engine mounts. 4. T-Angles: T-angles, commonly known as tee angles, serve as structural reinforcement in automotive applications. They are often utilized in areas demanding additional strength and support, such as roll cages or crash protection systems. 5. C-Angles: High torsional strength is a crucial requirement in certain automotive applications. To fulfill this need, C-angles, or channel angles, are frequently employed. These angles are commonly found in frame construction, providing resistance against bending and twisting forces. 6. Z-Angles: Z-angles, also known as Z-shaped angles or Z-bars, are frequently utilized in automotive applications to provide structural support and reinforcement. They are commonly employed in areas like door frames or roof structures, ensuring strength and rigidity. It is important to consider that the selection of a specific type of steel angle for automotive applications relies on the vehicle's specific requirements and design. Factors such as load-bearing capacity, structural integrity, and the desired level of reinforcement play a significant role in determining the appropriate angle to be used.

Q: What are the different methods of surface protection for steel angles?: There are several different methods of surface protection for steel angles, each with its own advantages and disadvantages. 1. Painting: One of the most common methods of surface protection is painting. This involves applying a layer of paint to the steel angle to create a barrier between the steel and the surrounding environment. Paint can provide both aesthetics and protection against corrosion. However, it may require regular maintenance and can be prone to chipping or peeling over time. 2. Galvanization: Galvanization is a process where a layer of zinc is applied to the surface of the steel angle. This creates a protective barrier that helps prevent corrosion. Galvanization can be done through either hot-dip galvanizing or electro-galvanizing. Hot-dip galvanizing involves immersing the steel angle in a bath of molten zinc, while electro-galvanizing uses an electrical current to deposit zinc onto the surface. Galvanized steel angles are highly resistant to rust and can provide long-lasting protection. 3. Powder coating: Powder coating is a dry finishing process where a fine powder is electrostatically applied to the surface of the steel angle. The powder is then cured under heat to form a hard, durable coating. Powder coating provides excellent protection against corrosion, impacts, UV rays, and chemicals. It also offers a wide range of color options and a smooth, attractive finish. However, it can be more expensive than other methods and requires specialized equipment for application. 4. Epoxy coating: Epoxy coatings are a type of protective finish made from epoxy resins. These coatings are highly resistant to chemicals, impacts, and abrasions. They provide a tough, glossy finish that can withstand harsh environments. Epoxy coatings are typically applied through a two-part system, where a resin and a hardener are mixed together before being applied to the steel angle. While epoxy coatings provide excellent protection, they can be more expensive and time-consuming to apply. 5. Metal plating: Metal plating involves covering the steel angle with a layer of metal such as chrome, nickel, or zinc. This provides a decorative finish as well as protection against corrosion. Metal plating can be done through electroplating or electroless plating processes. Electroplating uses an electrical current to deposit a thin metal layer onto the surface, while electroless plating does not require electricity and utilizes a chemical reaction to achieve the plating. Metal plating can enhance the appearance and durability of steel angles, but it may not be as effective in highly corrosive environments.

Q: What are the different types of steel angles used in engineering?: In engineering, there are several different types of steel angles that are commonly used. These angles are typically made from hot-rolled steel and are available in various sizes and dimensions to suit different applications. Some of the different types of steel angles used in engineering include: 1. Equal angles: These angles have equal sides and are commonly used for structural purposes, such as supporting beams or columns. They provide stability and strength to the structure and are often used in construction projects. 2. Unequal angles: As the name suggests, unequal angles have different length sides. These angles are often used in applications where one side needs to be longer or shorter than the other, such as bracing or framing. 3. L-shaped angles: L-shaped angles have one side longer than the other, forming an L-shape. These angles are commonly used in construction to provide support and reinforcement, such as for corners, joints, or connections. 4. Structural angles: Structural angles are specifically designed to bear heavy loads and provide structural stability. They are commonly used in building frame structures, bridges, or other load-bearing applications. 5. Stainless steel angles: Stainless steel angles are made from stainless steel, which offers excellent corrosion resistance and durability. These angles are often used in environments where rust or corrosion may be a concern, such as marine applications or food processing facilities. 6. Galvanized steel angles: Galvanized steel angles are coated with a layer of zinc to provide corrosion resistance. These angles are commonly used in outdoor applications or environments where exposure to moisture or harsh conditions is expected. 7. Perforated steel angles: Perforated steel angles have holes or perforations along their length, allowing for improved ventilation or drainage. These angles are often used in applications where airflow or water drainage is required, such as in HVAC systems or outdoor structures. Overall, the choice of steel angle depends on the specific requirements of the engineering project. Factors such as load-bearing capacity, resistance to corrosion, and aesthetic considerations play a crucial role in selecting the appropriate type of steel angle for a particular application.

Q: What are the tolerance specifications for steel angles?: The tolerance specifications for steel angles vary depending on the specific standards and requirements set by the industry or application. These specifications typically include tolerances for dimensions such as length, width, and thickness, as well as tolerances for straightness, squareness, and surface finish. It is important to refer to the relevant standards or consult with manufacturers to determine the exact tolerance specifications for steel angles in a particular context.

Q: How do you calculate the moment resistance of a steel angle?: To calculate the moment resistance of a steel angle, you need to consider the geometry and material properties of the angle. The moment resistance refers to the ability of the angle to withstand bending forces. First, you need to determine the section modulus, which is a measure of the shape's resistance to bending. The section modulus can be calculated by taking the moment of inertia of the angle (I) and dividing it by the distance from the centroid of the shape to the furthest point (c). Next, you need to determine the yield strength of the steel angle. This is the point at which the material starts to deform permanently. The yield strength is typically provided by the manufacturer or can be obtained from material testing. Finally, the moment resistance can be calculated by multiplying the section modulus (Z) by the yield strength (σ). This gives you the maximum moment the steel angle can resist before it starts to deform permanently. Moment Resistance = Z * σ It is important to note that this calculation assumes the steel angle is subjected to pure bending. If there are additional factors such as axial or shear forces, additional calculations or considerations may be required. Additionally, it is always recommended to consult relevant design codes or engineering handbooks for more accurate and detailed calculations.

Q: How do you calculate the moment capacity of a steel angle?: To calculate the moment capacity of a steel angle, you need to consider the properties of the angle section and the applied load. The moment capacity is determined by calculating the plastic section modulus of the angle and multiplying it by the yield strength of the steel material. This calculation helps determine the maximum moment the angle can resist before it reaches its yield point.

Q: How do steel angles contribute to the overall earthquake resistance of a structure?: Several ways contribute to the overall earthquake resistance of a structure by steel angles. Firstly, steel angles are commonly utilized as reinforcement elements in the construction industry. When installed and anchored properly, they can enhance the strength and stability of a structure, making it more resistant to the lateral forces generated during an earthquake. Moreover, steel angles are often employed in the creation of moment-resisting frames. These frames, composed of interconnected steel angles, are designed to absorb and distribute seismic energy throughout the structure. By distributing the seismic load, steel angles help prevent concentrated stress points and potential structural failures. Furthermore, steel angles can be strategically positioned at key locations, such as corners, junctions, and openings, to enhance the overall stiffness and rigidity of the structure. This increased stiffness assists in reducing the building's response to seismic vibrations and prevents excessive deformations that may lead to structural damage. Additionally, steel angles enable the creation of diagonal bracing systems, which are crucial for mitigating the effects of seismic forces. These systems consist of interconnected steel angles placed diagonally within the structure, forming a network that improves the building's ability to withstand lateral loads. Diagonal bracing effectively dissipates earthquake energy and redirects it away from critical components, thus enhancing the overall earthquake resistance of the structure. In conclusion, steel angles play a vital role in enhancing the earthquake resistance of a structure. They provide reinforcement, create moment-resisting frames, increase stiffness, and allow for the installation of diagonal bracing systems, all of which contribute to the structural integrity and resilience of a building during seismic events.

Q: What is the difference between galvanized and black steel angles?: Galvanized steel angles have been coated with a layer of zinc to protect them from corrosion, while black steel angles have not been coated and are more susceptible to rusting.

Q: What are the different methods for joining steel angles?: There exist various techniques for connecting steel angles, each possessing its own advantages and applications. Welding, bolting, and utilizing adhesive or epoxy are among the most frequently employed methods. Welding is a favored approach for joining steel angles due to its capacity to establish a sturdy and enduring connection. The process involves melting the edges of the angles using a welding torch, allowing them to cool and solidify, thereby creating a bond between the two pieces. Depending on the project's specific requirements, welding can be executed using diverse techniques such as arc welding, MIG welding, or TIG welding. Bolting is another commonly utilized method for joining steel angles, whereby nuts and bolts are employed to secure the angles together. This technique permits easy disassembly and reassembly, making it suitable for scenarios that demand flexibility. Additionally, bolting does not require any heat or special equipment, rendering it a relatively straightforward and cost-effective option. Utilizing adhesive or epoxy represents a non-traditional technique for connecting steel angles. This method involves the application of a potent adhesive or epoxy onto the contact surfaces of the angles, which are subsequently pressed together. Particularly when employing high-strength adhesives designed for metal bonding, this approach can yield a robust and long-lasting bond. Adhesive bonding is often employed in situations where welding or bolting may prove impractical or undesirable, such as when dealing with thin or delicate materials. Ultimately, the selection of a joining method for steel angles depends on various factors, including the specific application, desired strength and durability, ease of installation, and the necessity for disassembly or flexibility. Consulting with an expert or engineer is recommended to determine the most suitable joining method for a particular project.

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