Hot Rolled U-channel with High Quality System 1

Hot Rolled U-channel with High Quality

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Loading Port:: China Main Port

Payment Terms:: TT or LC

Min Order Qty:: 25 m.t.

Supply Capability:: 10000 m.t./month

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Product Description:

Minimum Order Quantity:	25MT	Unit:	m.t.	Loading Port:	Xingang Port
Supply Ability:	120000TON/Year	Payment Terms:	TT or LC

Product Applications:

Hot Rolled U-channels are ideal for structural applications and are widely used in the construction of buildings and bridges, and the manufacturing, petrochemical, and transportation industries.

Product Advantages:

OKorder's Hot Rolled U-channels are durable, strong, and resist corrosion.

Main Product Features:

· Premium quality

· Prompt delivery & seaworthy packing (30 days after receiving deposit)

· Corrosion resistance

· Can be recycled and reused

· Mill test certification

· Professional Service

· Competitive pricing

Product Specifications:

Manufacture: Hot rolled

Grade: Q195 – 235

Certificates: ISO, SGS, BV, CIQ

Length: 6m – 12m, as per customer request

Packaging: Export packing, nude packing, bundled

1. We are definitely speciallizing in manufacturing and supplying channel steel as per japanese standard, which is characterised with high mechanical strength and competitive prices.

Original Place	Tangshan, China	Brand Name	UINDA
Standard	JIS G3192 : 1990
Material Grade	SS490
Sizes	50mm to 200mm
Sales Volume/Year	3000MT
Destination Area	Middle East, Africa, Southeast Asia

2. The sections in details are as followings in the table-1

JIS U CHANNEL	Standard h	Sectional b	Dimension s	t	Mass: Kg/m
	(mm)	(mm)	(mm)	(mm)
50x25	50	25	3.0	6.00	2.37
75X40	75	40	3.8	7.00	5.30
75X40	75	40	4.0	7.00	5.60
75X40	75	40	4.5	7.00	5.85
75X40	75	40	5.0	7.00	6.92

100X50	100	50	3.8	6.00	7.30
100X50	100	50	4.2	6.00	8.03
100X50	100	50	4.5	7.50	8.97
100X50	100	50	5.0	7.50	9.36

125X65	125	65	5.2	6.80	11.66
125X65	125	65	5.3	6.80	12.17
125X65	125	65	5.5	8.00	12.91
125X65	125	65	6.0	8.00	13.40

150x75	150	75	5.5	7.30	14.66
150x75	150	75	5.7	10.00	16.71
150x75	150	75	6.0	10.00	17.90
150x75	150	75	6.5	10.00	18.60
150x75	150	75	6.5	10.00	24.00

200X80	200	80	7.5	11.00	24.60

Table-1

3. The mechanical property of JIS U Channel Steel in the table-2:

Grade	Yield Strength，N/mm²				Extension Strength N/mm²
	Thickness of Steel,mm
	≦16	＞16-≦40	＞40-≦100	＞100
SS490	≧285	≧275	≧255	≧245	490-610

Table-2

4. The chemical composition of JIS U Channel Steel as per SS490 in the table-3

Grade	Element(%)
Grade	C	Mn	P	S
SS490	-	-	≦0.050	≦0.050

Table-3

FAQ:

Q1: Why buy Materials & Equipment from OKorder.com?

A1: All products offered byOKorder.com are carefully selected from China's most reliable manufacturing enterprises. Through its ISO certifications, OKorder.com adheres to the highest standards and a commitment to supply chain safety and customer satisfaction.

Q2: How do we guarantee the quality of our products?

A2: We have established an advanced quality management system which conducts strict quality tests at every step, from raw materials to the final product. At the same time, we provide extensive follow-up service assurances as required.

Q3: How soon can we receive the product after purchase?

A3: Within three days of placing an order, we will begin production. The specific shipping date is dependent upon international and government factors, but is typically 7 to 10 workdays.

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Hot Rolled U-channel with High Quality

Q: How are steel structures used in the construction of historical buildings?: Steel structures are commonly used in the construction of historical buildings due to their strength, durability, and versatility. These structures provide numerous benefits that make them ideal for preserving and restoring historical architecture. First and foremost, steel structures offer superior strength compared to traditional materials like wood or stone. This allows architects and engineers to create larger, more open interior spaces without the need for excessive supporting columns or walls. The use of steel beams and frames also ensures the building's structural integrity, making it more resistant to natural disasters such as earthquakes or high winds. Furthermore, steel is highly durable and resistant to decay, rot, and insect infestations. This is particularly important in historical buildings where preserving the original structure is crucial. Steel structures can help reinforce weakened or deteriorating sections of the building, ensuring its longevity for future generations to appreciate. Steel's versatility is another key advantage in the construction of historical buildings. It can be easily shaped and molded into various architectural designs, allowing for the replication of intricate details and ornamental features found in historical architecture. This flexibility allows for the preservation of the building's original aesthetic while incorporating modern technology and materials. Additionally, steel structures can be fabricated off-site, reducing on-site construction time and minimizing disruption to the surrounding area. This is especially beneficial when working on historical buildings, as it helps to preserve the building's historical context and minimize the impact on neighboring structures and the overall site. In conclusion, steel structures play a significant role in the construction of historical buildings as they provide strength, durability, and versatility. They ensure the structural integrity of the building, preserve its original architectural features, and allow for the incorporation of modern technologies. Moreover, the use of steel in historical building construction minimizes on-site disruption and contributes to the preservation of the building's historical context.

Q: What are the factors influencing the choice between steel and concrete structures?: The choice between steel and concrete structures is influenced by several factors, including cost, design flexibility, construction speed, durability, and environmental impact. One of the primary factors influencing the choice is cost. While steel structures often have a higher initial cost than concrete structures, they can offer significant long-term savings due to their durability and ease of maintenance. Concrete structures, on the other hand, have a lower initial cost but may require more frequent repairs and maintenance, which can increase their life cycle cost. Design flexibility is another crucial factor. Steel structures offer greater flexibility in terms of shape, span, and height, allowing architects and engineers to create innovative and complex designs. Concrete structures, although less flexible, can still accommodate a wide range of architectural styles and can be molded into various shapes using formwork. Construction speed is also a significant consideration. Steel structures are typically quicker to erect than concrete structures since they are fabricated off-site and assembled on-site. This can lead to reduced construction time and cost, making steel structures more suitable for projects with tight schedules. Concrete structures, on the other hand, require on-site casting and curing, which can result in longer construction periods. Durability is an essential factor, particularly in areas prone to extreme weather conditions or seismic activity. Steel structures have high strength and resistance to corrosion, making them suitable for withstanding earthquakes, hurricanes, and other natural disasters. Concrete structures, while generally durable, may require additional reinforcement to achieve the same level of strength and resilience. Environmental impact is also a consideration in the choice between steel and concrete structures. Steel is a highly recyclable material, and using recycled steel in construction can significantly reduce its carbon footprint. Concrete, on the other hand, has a higher carbon footprint due to the energy-intensive process of cement production. However, advancements in concrete technology, such as the use of supplementary cementitious materials and carbon capture, are being explored to mitigate its environmental impact. In conclusion, the choice between steel and concrete structures is influenced by factors such as cost, design flexibility, construction speed, durability, and environmental impact. Each material offers unique advantages and considerations, and the decision should be based on the specific requirements and constraints of the project.

Q: How are steel structures designed for resisting fire-induced thermal expansion?: Several key measures are implemented in the design of steel structures to counteract thermal expansion caused by fire. The selection of materials is of utmost importance in this regard. It is common practice to use fire-resistant steel with a high melting point for the construction of these structures. This guarantees that the steel can endure elevated temperatures without experiencing significant deformation or failure. In addition, the structural design takes into account the potential expansion and contraction of steel due to fire. Engineers integrate expansion joints and flexible connections into the steel framework to accommodate thermal expansion. These joints and connections absorb the expansion, preventing excessive stress on the structure and minimizing the risk of failure. To safeguard the steel structure, fire protection measures are also implemented. These may involve the application of fire-resistant coatings or the use of fireproof insulation. By providing an insulating layer, these measures slow down the transfer of heat to the steel, delaying its temperature rise and reducing thermal expansion. Moreover, fire safety features are often incorporated into the design of steel structures. Compartmentalization and fire barriers are examples of such features. They divide the structure into smaller sections, restricting the spread of fire and decreasing the overall thermal load on the steel. By controlling the impact of the fire and minimizing heat exposure, the thermal expansion of the steel can be effectively managed. In conclusion, the design of steel structures includes the use of fire-resistant materials, the integration of expansion joints, the implementation of fire protection measures, and the inclusion of fire safety features. These design considerations ensure that the steel structure can withstand high temperatures and minimize the probability of failure during a fire incident.

Q: What are the considerations for steel structure design in arctic climates?: Designing steel structures for arctic climates requires careful consideration of several factors to ensure durability and safety in these extreme conditions. 1. Temperature: Arctic climates experience extremely low temperatures, sometimes dropping below -50°C. Steel structures should be designed to withstand these extreme temperatures without undergoing brittle fracture or excessive thermal expansion. Materials with high fracture toughness and low temperature resistance, such as low alloy steels, are often used. 2. Frost heave: In arctic regions, the ground freezes and thaws repeatedly, leading to frost heave. This can cause significant movement and deformation of the foundation and structure. Engineers must design the foundations to mitigate the effects of frost heave, often by using deep foundations or insulation to prevent heat transfer from the structure to the ground. 3. Snow and ice loads: Heavy snowfall and ice accumulation are common in arctic regions. The design of steel structures should account for these loads to ensure the structure can safely support them. Designers need to consider the weight, shape, and distribution of snow and ice on the structure, as well as the potential for drifting and sliding. 4. Wind loads: Arctic climates often experience strong winds, especially in coastal areas. Steel structures must be designed to withstand these high wind speeds by considering wind loads, wind pressures, and the potential for wind-induced vibrations. Adequate bracing, connections, and wind-resistant shapes are essential to ensure structural stability. 5. Corrosion protection: Arctic climates have high humidity levels and exposure to saltwater in coastal areas, increasing the risk of corrosion. Steel structures should be protected against corrosion through the use of appropriate coatings, such as galvanization or specialized paints. Regular maintenance and inspections are also necessary to prevent or address any corrosion issues. 6. Thermal insulation: To minimize heat loss and energy consumption, steel structures in arctic climates require effective thermal insulation. Insulation materials and systems should be carefully chosen to prevent condensation, reduce heat transfer, and maintain comfortable indoor temperatures. 7. Construction logistics: Building in remote arctic areas can present logistical challenges due to limited transportation, harsh weather conditions, and a scarcity of local resources. Designers must consider these factors when selecting construction methods, materials, and equipment to ensure the feasibility and efficiency of the construction process. Overall, designing steel structures for arctic climates requires a comprehensive understanding of the unique environmental conditions and their impact on the structural integrity. Proper consideration of temperature, frost heave, snow and ice loads, wind loads, corrosion protection, thermal insulation, and construction logistics is crucial for ensuring safe and durable steel structures in these extreme environments.

Q: How are steel structures designed to be resistant to hurricanes and tornadoes?: Steel structures are designed to be resistant to hurricanes and tornadoes through various engineering techniques and considerations. Firstly, the strength and durability of steel makes it an ideal material for withstanding extreme weather conditions. Steel has high tensile strength, which allows it to withstand the strong winds and forces associated with hurricanes and tornadoes. The use of steel in the construction of structures ensures that they can withstand the high wind pressures and impacts caused by these natural disasters. Additionally, the design of steel structures takes into account the specific loads imposed by hurricanes and tornadoes. Engineers consider factors such as wind speed, direction, and duration to determine the wind loads that the structure will be subjected to. By analyzing these factors, they can accurately determine the structural requirements to resist these forces. Steel structures are also designed to be aerodynamic, reducing wind resistance and minimizing the chances of being lifted or toppled during a hurricane or tornado. This is achieved through streamlined designs, sloping roofs, and rounded corners, all of which help to reduce wind drag and turbulence. Furthermore, the connections between steel members in the structure are designed to be robust and resistant to wind forces. Special attention is given to welds, bolts, and other fasteners, ensuring that they can withstand the high loads and forces imposed during extreme weather events. The use of advanced engineering techniques, such as moment-resisting frames and bracing systems, provides additional structural stability and resistance to wind-induced forces. Lastly, steel structures may also incorporate additional protective measures such as reinforced concrete foundations, impact-resistant glazing, and storm shutters. These features further enhance the ability of the structure to withstand hurricanes and tornadoes by providing additional strength and protection against flying debris and extreme forces. In conclusion, steel structures are designed to be resistant to hurricanes and tornadoes through a combination of material strength, aerodynamic design, careful consideration of wind loads, robust connections, and additional protective measures. These engineering techniques ensure that steel structures can withstand the extreme forces and wind pressures associated with these natural disasters, providing a safe and secure environment for occupants.

Q: What are the considerations for selecting the appropriate steel section for a structure?: When selecting the appropriate steel section for a structure, there are several important considerations that need to be taken into account. These considerations include load-bearing capacity, structural stability, cost-effectiveness, and ease of fabrication. Firstly, the load-bearing capacity of the steel section is a crucial factor to consider. The section needs to be able to safely support the anticipated loads that will be applied to the structure. This includes both dead loads (the weight of the structure itself) and live loads (such as occupants, furniture, or equipment). Engineers need to calculate and analyze the required strength and stiffness of the steel section to ensure it can adequately resist these loads without failure. Secondly, structural stability is another important consideration. The selected steel section should provide sufficient resistance against lateral forces like wind or earthquakes. Factors like shape, size, and connections of the section need to be evaluated to ensure the structure will remain stable under these external forces. Cost-effectiveness is also a key consideration when selecting a steel section. Different sections have varying costs, and it is essential to balance the cost with the required strength and performance of the structure. Engineers need to assess the cost of the section, its availability in the market, and the overall project budget to make an informed decision. Additionally, ease of fabrication plays a role in selecting the appropriate steel section. The section should be easily fabricated and assembled on-site to ensure efficient construction. Complex or specialized sections may require additional fabrication time, skilled labor, and specialized equipment, which could impact the project timeline and budget. Other considerations may include factors like the desired aesthetics of the structure, environmental sustainability, or specific code requirements and regulations. Ultimately, a thorough analysis of the load-bearing capacity, structural stability, cost-effectiveness, and ease of fabrication will guide the selection of the appropriate steel section for a structure.

Q: What are the design considerations for steel swimming pool enclosures?: Some design considerations for steel swimming pool enclosures include structural stability, corrosion resistance, maintenance requirements, insulation, ventilation, and aesthetics. The enclosure should be designed to withstand the weight of the structure, along with potential snow loads or high winds. As steel is susceptible to corrosion, appropriate coatings or materials should be used to protect against rust. Additionally, the enclosure should be designed to be easily cleaned and maintained. Insulation and ventilation are important to regulate temperature and prevent condensation within the enclosure. Lastly, aesthetics play a role in creating an appealing and visually harmonious design that complements the surroundings.

Q: Steel structure, tied with brace pipe casing and how the difference? What difference?: The tie bar is a fixed connecting rod between the steel beams. The drawing is generally expressed as "XG" or "GXG", and the steel pipe is usually 114 in diameter,Brace is fixed between the purlin connecting rod, a straight and inclined brace brace, drawing on the general expression of ZLT, XLT, diameter of 12 bar for general use,The main casing support, support, drawing on the general expression of CG, up to 12 bar up to + 32x2.0 circular tube

Q: What are the different types of steel trusses used in building structures?: Building structures commonly utilize various types of steel trusses, each serving to provide structural support and stability. These trusses ensure the durability and strength of the overall building. Some of the frequently employed steel trusses include: 1. Pratt Truss: Widely recognized and employed, the Pratt truss comprises diagonal members that slope towards the truss center, forming a "V" shape. The vertical members offer compression, while the diagonal members provide tension, resulting in a stable and efficient truss design. 2. Warren Truss: Another commonly used steel truss is the Warren truss, which features alternating diagonal members, creating a series of triangles within the truss. This design evenly distributes the load, offering strength and stability. 3. Howe Truss: The Howe truss is a variation of the Pratt truss, with diagonal members sloping upwards towards the truss center in an opposite "V" shape. This design is suitable for situations requiring compression in the diagonal members. 4. King Post Truss: Utilized in smaller structures like sheds and garages, the king post truss is a simple and traditional design. It consists of a vertical member, known as the king post, supporting a horizontal beam called the tie beam. Its ease of construction makes it a popular choice. 5. Bowstring Truss: The bowstring truss stands out due to its arched top chord and horizontal bottom chord. This design offers a wide clear span, making it suitable for buildings requiring expansive open spaces such as warehouses and gymnasiums. 6. Scissor Truss: The scissor truss features two diagonal members crossing each other in an "X" shape. This design allows for higher ceiling heights in the center of the building, creating a more spacious interior. These examples demonstrate the variety of steel trusses employed in building structures. The selection of a truss design depends on factors such as the building's span, load requirements, and architectural design. Seeking advice from a structural engineer or an experienced contractor can help determine the most suitable truss design for a specific building project.

Q: How does steel perform in extreme weather conditions?: Steel performs well in extreme weather conditions. It is highly resistant to heat and can withstand high temperatures without losing its structural integrity. In cold weather, steel remains strong and does not become brittle. It is also resistant to corrosion, making it suitable for use in areas with high humidity or saltwater exposure. Overall, steel's durability and resilience make it a reliable choice for construction and engineering projects in extreme weather conditions.

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