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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:How are steel angles protected against abrasion?: Steel angles can be protected against abrasion through various methods, such as applying anti-abrasion coatings, using rubber or plastic lining, or incorporating sacrificial wear plates. These protective measures help to minimize the wear and tear caused by friction and ensure the longevity and durability of the steel angles.

Q:Are steel angles suitable for seismic design?: Yes, steel angles are commonly used in seismic design. Steel angles offer several advantages that make them suitable for seismic design. Firstly, steel angles have a high strength-to-weight ratio, which means they can withstand high levels of seismic forces while being relatively lightweight. This is important in seismic design as it allows for the construction of structures that can absorb and dissipate seismic energy efficiently. Secondly, steel angles have excellent ductility, which is the ability to deform without breaking. During an earthquake, structures undergo significant deformations due to ground shaking. Steel angles can absorb these deformations by flexing and bending without compromising their structural integrity. This ductility helps in dissipating the seismic energy and prevents the sudden collapse of the structure. Additionally, steel angles can be easily connected and fabricated, allowing for efficient construction in seismic zones. They can be welded or bolted together to create rigid connections that can resist seismic forces. The versatility of steel angles allows for the design of various structural elements, such as braces, beams, and columns, that can effectively withstand seismic loads. Furthermore, steel angles are highly durable and resistant to corrosion, which is crucial in seismic design. Structures in seismic zones are often exposed to harsh environmental conditions, including moisture and corrosive agents. Steel angles can withstand these conditions and maintain their structural integrity over time. In conclusion, steel angles are suitable for seismic design due to their high strength-to-weight ratio, excellent ductility, ease of fabrication, and resistance to corrosion. These properties make steel angles a reliable choice for constructing structures that can withstand and safely absorb seismic forces.

Q:How do you prevent galvanic corrosion between steel angles and aluminum components?: To avoid galvanic corrosion between steel angles and aluminum components, there are multiple actions you can take: 1. Implement a barrier: Employ a non-conductive coating or a layer of paint to create a physical barrier between the steel and aluminum surfaces. This will obstruct direct contact between the two metals, decreasing the chances of galvanic corrosion. 2. Use insulating tape or gaskets: Position insulating tape or gaskets made of non-conductive materials, like rubber or plastic, between the steel angles and aluminum components. This will act as a buffer, preventing direct contact and reducing the risk of galvanic corrosion. 3. Select compatible metals: Opt for metals that are more compatible with each other when designing or selecting components. For example, consider using stainless steel or galvanized steel instead of regular steel when paired with aluminum, as this can decrease the risk of galvanic corrosion. 4. Utilize isolation techniques: Isolate the steel angles and aluminum components using techniques like plastic or rubber spacers. These spacers separate the metals, preventing direct contact and minimizing the potential for galvanic corrosion. 5. Apply corrosion inhibitors: Apply special coatings or compounds to the steel and aluminum surfaces that act as corrosion inhibitors. These inhibitors create a protective layer, helping to prevent galvanic corrosion. 6. Control the environment: Galvanic corrosion is accelerated in the presence of moisture, saltwater, or acidic environments. Decrease the exposure of steel angles and aluminum components to these corrosive elements by ensuring proper ventilation, drainage, and maintaining suitable protective coatings. When selecting the most appropriate method or combination of methods to prevent galvanic corrosion between steel angles and aluminum components, it is crucial to carefully consider the specific requirements and conditions of your application. Seeking advice from corrosion experts or engineers can provide valuable insights and tailored guidance for your particular situation.

Q:How are steel angles used in framing?: Framing utilizes steel angles for a variety of purposes. Structural support and stability are among the primary uses of steel angles in framing. They are combined with other building materials, such as wood or concrete, to create a strong and enduring frame. Building corners are commonly formed using steel angles in framing. These angles are often positioned at the intersections of walls and floors to reinforce the structure and prevent sagging or collapse. Additionally, steel angles secure and strengthen joints between beams, columns, and other structural elements. Apart from their structural function, steel angles offer versatility in framing. They can be easily cut, bent, and welded, enabling customization and adaptation to diverse construction requirements. Steel angles are employed to create braces, supports, and even decorative elements in the framing process. Furthermore, steel angles are renowned for their high strength and resistance to bending or warping. This makes them ideal for withstanding heavy loads and providing long-lasting support in a framing system. Their durability and reliability establish them as a preferred choice in numerous construction projects. In conclusion, steel angles are crucial in framing as they provide structural stability, reinforcement, and versatility. Their implementation ensures the strength and durability of buildings or structures, making them an essential component in the construction industry.

Q:How do you calculate the deflection of a loaded steel angle?: To calculate the deflection of a loaded steel angle, you would typically use formulas based on the principles of structural mechanics, such as Euler-Bernoulli beam theory. These formulas take into account the dimensions and properties of the angle, applied loads, and support conditions. By plugging in the appropriate values, you can determine the deflection of the angle under the given load.

Q:Are steel angles resistant to impact?: Yes, steel angles are generally resistant to impact due to their high strength and durability. They are commonly used in construction and structural applications where impact resistance is required.

Q:How do you determine the required angle thickness for a specific application?: Determining the required angle thickness for a specific application involves considering several factors. Firstly, it is important to understand the load or force that will be applied to the angle. This can be determined by analyzing the specific application and the expected weight or pressure that will be exerted on the angle. Secondly, the material of the angle must be taken into account. Different materials have different strength properties, and their ability to withstand the applied load will vary. It is crucial to select a material that has the required strength and durability for the specific application. Additionally, the length of the angle and the distance between its supports should be considered. Longer angles or larger distances between supports may require thicker angles to prevent buckling or bending under the applied load. Furthermore, environmental factors such as temperature, humidity, or corrosive substances may affect the required thickness of the angle. In corrosive environments, for instance, a thicker angle may be necessary to ensure its longevity and structural integrity. Lastly, any applicable building codes, regulations, or industry standards should be consulted to ensure compliance and safety. These guidelines often provide specific recommendations or requirements for angle thickness based on the intended application. In conclusion, determining the required angle thickness for a specific application requires analyzing the load, material strength, length, support distance, environmental factors, and relevant regulations. Proper consideration of these factors will help ensure the angle's ability to withstand the applied load and provide a safe and durable solution for the given application.

Q:How do you prevent warping of steel angles during fabrication?: To prevent warping of steel angles during fabrication, several measures can be taken. Firstly, it is essential to ensure proper storage and handling of the angles to avoid any bending or twisting. During welding or heating processes, it is crucial to control the temperature and heat distribution evenly to prevent localized expansion or contraction that may lead to warping. Additionally, using proper clamping or fixturing techniques can help maintain the desired shape and prevent warping. Lastly, post-fabrication processes like stress relieving or annealing can be employed to release any residual stresses in the angles and minimize the risk of warping.

Q:Can steel angles be used as framing members for suspended ceilings?: Yes, steel angles can be used as framing members for suspended ceilings. Steel angles are commonly used in construction for their strength and durability. When used as framing members for suspended ceilings, they provide support and stability to the ceiling system. Steel angles can be easily attached to the walls or other structural components, and they can be cut to the desired length to fit the specific ceiling dimensions. Additionally, steel angles can be painted or coated to match the aesthetic requirements of the suspended ceiling. Overall, steel angles are a reliable and suitable choice for framing members in suspended ceilings.

Q:What is the fire resistance rating of steel angles?: The fire resistance rating of steel angles depends on various factors such as the size and thickness of the angle, the type of steel used, and the specific fire protection measures implemented. Steel is inherently fire-resistant due to its high melting point and low thermal conductivity. However, the fire resistance rating can be enhanced by applying fireproofing materials, such as intumescent coatings or fire-resistant boards, to the steel angles. These fire protection measures can significantly increase the fire resistance rating of steel angles by providing insulation and slowing down the transfer of heat to the steel. The specific fire resistance rating can vary based on the thickness and type of fireproofing materials used. For example, a steel angle with a certain fireproofing coating may have a fire resistance rating of 60 minutes, meaning it can withstand exposure to fire for up to 60 minutes before losing its structural integrity. It is important to consult local building codes, regulations, and fire safety standards to determine the specific fire resistance requirements for steel angles in a particular application. These standards can provide guidance on the necessary fire protection measures and the minimum fire resistance ratings that need to be met in different construction scenarios.

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