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:How do steel angles contribute to the overall energy efficiency of a building?: Steel angles contribute to the overall energy efficiency of a building in several ways. Firstly, steel angles are commonly used in the construction of building frames and structures, providing the necessary support and stability. By using steel angles instead of other materials, such as wood or concrete, the building can be constructed with fewer materials and therefore reduce the overall energy consumption during the construction phase. Moreover, steel angles are known for their strength and durability, which allows for longer spans and fewer support columns. This not only maximizes the usable space within the building but also reduces the need for additional heating or cooling systems. By minimizing the number of partitions and obstructions, steel angles enable better airflow and natural lighting, thus reducing the energy required for artificial lighting and ventilation. Additionally, steel angles can be used as a thermal barrier, providing insulation and reducing heat transfer. This helps to maintain a comfortable indoor temperature throughout the year, reducing the reliance on heating and cooling systems and consequently saving energy. Furthermore, steel angles have a high fire resistance, making them a safe choice for building construction. This reduces the need for fireproofing materials and systems, leading to energy savings both during construction and throughout the building's lifespan. Lastly, steel is a highly recyclable material, and steel angles can be recycled at the end of a building's life cycle. By incorporating recycled steel angles into new construction projects, the overall energy consumption and environmental impact can be further reduced. In summary, steel angles contribute to the overall energy efficiency of a building by reducing the amount of materials required during construction, optimizing space utilization, enhancing natural lighting and ventilation, providing thermal insulation, ensuring fire safety, and promoting the use of recyclable materials.

Q:How do steel angles contribute to the sustainability of a city?: The sustainability of a city is greatly enhanced by the presence of steel angles, which offer numerous benefits. Firstly, steel angles are essential in the construction industry, as they are utilized in the fabrication of buildings, bridges, and other infrastructure. Steel is renowned for its strength, durability, and ability to withstand external factors like corrosion and fire. With the use of steel angles in construction projects, cities can guarantee the longevity and safety of their structures, thereby reducing the need for frequent maintenance or replacement. This results in a significant reduction in resource consumption over time, thus enhancing the city's sustainability. Moreover, steel angles provide architects and engineers with design flexibility, enabling the creation of innovative and efficient structures. Their versatility allows for the construction of sustainable buildings that incorporate energy-efficient designs, natural lighting, and effective insulation. By incorporating steel angles into the construction process, cities can actively promote sustainable practices and decrease energy consumption, consequently contributing to a more sustainable urban environment. Furthermore, steel is a highly recyclable material, boasting a recycling rate of approximately 90%. By integrating steel angles into construction projects, cities can actively participate in a circular economy by promoting the recycling and reuse of steel products. This practice reduces the demand for raw materials and minimizes waste, thereby lessening the environmental impact of construction projects. The utilization of recycled steel also aids in energy conservation and the reduction of greenhouse gas emissions associated with the production of new steel. In conclusion, the inclusion of steel angles plays a pivotal role in fostering the sustainability of a city. These angles provide durable and long-lasting structures, facilitate energy-efficient designs, and encourage the recycling and reuse of materials. By embracing steel angles in construction projects, cities can establish sustainable infrastructure that positively impacts the environment and the community as a whole.

Q:What is the minimum thickness of a steel angle?: The minimum thickness of a steel angle typically depends on the specific application and the structural requirements. However, it is generally recommended to have a minimum thickness of around 1/8 inch (3.175 mm) for standard steel angles.

Q:How do steel angles compare to other structural materials, such as wood or concrete?: Steel angles have several advantages over other structural materials such as wood or concrete. Firstly, steel angles have a higher strength-to-weight ratio compared to wood or concrete. This means that steel angles can carry heavier loads while being lighter in weight. This advantage is particularly important in construction projects where weight restrictions need to be considered. Secondly, steel angles have excellent durability and resilience. Unlike wood, steel angles are not susceptible to rot, decay, or insect damage. They are also highly resistant to fire, which makes them a safer choice for structural applications. Concrete, on the other hand, is prone to cracking and deteriorating over time, whereas steel angles provide long-lasting structural integrity. Additionally, steel angles offer greater versatility in design and construction. They can be easily shaped and fabricated to fit specific project requirements, allowing for more efficient use of materials. Steel angles are also highly flexible, which makes them suitable for various applications, including beams, columns, trusses, and frames. Moreover, steel angles have excellent recyclability. They can be easily melted down and reused, reducing the environmental impact and promoting sustainability. In contrast, wood and concrete are not as easily recyclable, often resulting in waste during demolition or renovation projects. Lastly, steel angles offer cost-effectiveness in the long run. While the initial cost of steel may be higher than wood or concrete, the durability and low maintenance requirements of steel angles make them a more economical choice over time. With minimal repairs and a longer lifespan, steel angles can save on maintenance and replacement costs in the future. In conclusion, steel angles have numerous advantages over other structural materials like wood or concrete. Their higher strength-to-weight ratio, durability, versatility, recyclability, and cost-effectiveness make them an excellent choice for a wide range of construction projects.

Q:What are the safety precautions when working with steel angles?: When working with steel angles, it is important to follow a few safety precautions. Firstly, always wear appropriate personal protective equipment (PPE) such as safety glasses, gloves, and steel-toed boots to protect yourself from potential injuries. Secondly, ensure that the work area is clear of any obstructions or tripping hazards to prevent accidents. Additionally, make sure to use proper lifting techniques or equipment when handling heavy steel angles to avoid strains or back injuries. Lastly, be cautious of sharp edges and corners on the steel angles and use appropriate tools and techniques to prevent cuts or abrasions.

Q:Are steel angles suitable for seismic design?: Seismic design commonly utilizes steel angles. Steel angles possess several advantages that render them appropriate for seismic design. To begin with, steel angles exhibit a high strength-to-weight ratio, enabling them to endure substantial seismic forces while remaining relatively lightweight. This quality is essential in seismic design as it permits the construction of structures capable of efficiently absorbing and dissipating seismic energy. Moreover, steel angles possess exceptional ductility, which refers to their ability to deform without fracturing. During an earthquake, structures undergo significant deformations caused by ground shaking. Steel angles can absorb these deformations by flexing and bending without compromising their structural integrity. This ductility aids in dissipating seismic energy and preventing sudden structural collapses. Furthermore, steel angles can be easily connected and fabricated, facilitating efficient construction in seismic zones. They can be welded or bolted together to create rigid connections capable of resisting seismic forces. The versatility of steel angles allows for the design of various structural elements, like braces, beams, and columns, that can effectively withstand seismic loads. Additionally, steel angles possess exceptional durability and corrosion resistance, which are vital in seismic design. Structures in seismic zones often face 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 well-suited for seismic design due to their high strength-to-weight ratio, excellent ductility, ease of fabrication, and resistance to corrosion. These characteristics make steel angles a reliable choice for constructing structures that can endure and safely absorb seismic forces.

Q:What is the lifespan of steel angles?: The lifespan of steel angles can vary depending on a range of factors including the quality of the steel, the environment in which they are used, and the level of maintenance they receive. Generally speaking, steel angles are known for their durability and longevity, making them a popular choice in construction and structural applications. High-quality steel angles that are properly manufactured and maintained can last for several decades or even longer. However, factors such as exposure to harsh weather conditions, corrosive environments, and lack of maintenance can significantly reduce their lifespan. To maximize the lifespan of steel angles, it is important to choose the appropriate grade of steel for the specific application, ensure proper installation, and regularly inspect and maintain them. This may include measures such as periodically painting or coating the angles to protect them from corrosion, conducting routine inspections to identify any signs of wear or damage, and promptly addressing any issues that arise. In summary, the lifespan of steel angles can vary but with proper care and maintenance, they can last for many years, providing strength and stability to various structures and applications.

Q:Can steel angles be used as handrails or guardrails?: Yes, steel angles can be used as handrails or guardrails. Steel angles are often used in construction and industrial applications due to their strength and durability. When properly designed, fabricated, and installed, steel angles can provide a sturdy and reliable support system for handrails and guardrails. They can be welded or bolted to other structural elements to create a secure and safe railing system. Additionally, steel angles can be easily customized to meet specific design and aesthetic requirements. However, it is important to ensure that the steel angles used meet the necessary safety standards and building codes to ensure the protection and well-being of individuals using the handrails or guardrails.

Q:How do you measure the dimensions of a steel angle?: To measure the dimensions of a steel angle, you would typically use a combination of tools such as a measuring tape or ruler, a protractor, and a square. First, you would measure the length of one side of the angle using a measuring tape or ruler. Place the tape or ruler along the side of the angle and note the measurement. Next, you would measure the length of the other side of the angle in the same manner. Make sure to measure from the same starting point as the first side to ensure accuracy. To measure the angle itself, use a protractor. Align the base of the protractor with one side of the angle and ensure that the other side is aligned with the correct degree marking on the protractor. Read the measurement on the protractor to determine the angle of the steel angle. Lastly, you can use a square to check if the angle is truly 90 degrees. Place the square against the two sides of the angle and ensure that it aligns perfectly with both sides. If it does, then the angle is indeed 90 degrees. It is important to note that these measurements may be approximate and may vary slightly due to manufacturing tolerances.

Q:How do you calculate the bending stress in a steel angle?: To calculate the bending stress in a steel angle, you need to understand the basics of bending moment and the moment of inertia of the angle. First, you will need to determine the bending moment acting on the steel angle. This can be done by considering the applied load or force and its distance from the point of rotation. The bending moment is calculated as the product of the applied load and the distance between the point of rotation and the line of action of the force. Next, you will need to determine the moment of inertia of the steel angle. The moment of inertia measures the resistance of an object to changes in its rotational motion. It depends on the shape and size of the object. In the case of a steel angle, the moment of inertia can be calculated using the appropriate formula for the specific cross-sectional shape of the angle. Once you have determined the bending moment and the moment of inertia, you can calculate the bending stress using the formula: Bending Stress = (Bending Moment * Distance from Neutral Axis) / Moment of Inertia The bending stress represents the internal resistance within the steel angle to the bending moment. It is typically expressed in units of force per unit area, such as pounds per square inch (psi) or newtons per square meter (Pa). It is important to note that the calculation of bending stress assumes that the steel angle behaves elastically, meaning it is not subjected to excessive deformation or permanent damage. If the applied bending moment exceeds the elastic limit of the steel angle, plastic deformation or failure may occur, and a different analysis method would be required.

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