JIS Standard U-channels with best quality

JIS Standard U-channels with best quality System 1

JIS Standard U-channels with best quality

Ref Price:

Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 25 m.t.

Supply Capability:: 10000 m.t./month

Inquire Now

Add to My Favorites

OKorder Service Pledge

Quality Product, Order Online Tracking, Timely Delivery

OKorder Financial Service

Credit Rating, Credit Services, Credit Purchasing

Product Description:

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

Product Applications:

JIS Standard 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 JIS Standard 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 by OKorder.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: What makes stainless steel stainless?

A2: Stainless steel must contain at least 10.5 % chromium. It is this element that reacts with the oxygen in the air to form a complex chrome-oxide surface layer that is invisible but strong enough to prevent further oxygen from "staining" (rusting) the surface. Higher levels of chromium and the addition of other alloying elements such as nickel and molybdenum enhance this surface layer and improve the corrosion resistance of the stainless material.

Q3: Can stainless steel rust?

A3: Stainless does not "rust" as you think of regular steel rusting with a red oxide on the surface that flakes off. If you see red rust it is probably due to some iron particles that have contaminated the surface of the stainless steel and it is these iron particles that are rusting. Look at the source of the rusting and see if you can remove it from the surface.

Images:

JIS Standard U-channels with best quality

Q: How do steel rebars impact the overall aesthetics of concrete structures?: The overall aesthetics of concrete structures are greatly influenced by steel rebars. Concrete is known for its strength and durability, but it lacks the ability to resist bending or stretching forces. This is where steel rebars come in. By reinforcing concrete with steel rebars, the structural integrity of the concrete is greatly improved. This allows engineers and architects to design more complex and ambitious structures, such as high-rise buildings, bridges, and stadiums. The use of steel rebars provides the necessary strength and flexibility to withstand heavy loads, seismic activity, and other environmental forces. However, the presence of steel rebars can impact the appearance of the concrete structure. In some cases, especially in exposed concrete finishes, the visibility of steel rebars can be seen as a visual distraction or an undesirable element. The exposed steel rebars may create a grid-like pattern or a rusty appearance, which can be perceived as unattractive or out of harmony with the surrounding environment. To address this aesthetic impact, various techniques are employed. One common approach is to use concrete coverings or coatings to hide the steel rebars and create a smooth and uniform surface. These coverings not only improve the appearance but also protect against corrosion and prolong the lifespan of the structure. Another method is to use decorative techniques like formwork or molds to create unique patterns or textures on the concrete surface. This way, the steel rebars are concealed within the design, enhancing the overall aesthetic appeal of the structure. By incorporating architectural features such as curves or geometric shapes, the presence of steel rebars can be turned into a visual asset instead of a hindrance. It is important to note that in certain architectural styles, like Brutalism, the raw and exposed nature of concrete structures, including the visibility of steel rebars, is celebrated as an artistic expression. In these cases, the industrial and utilitarian aesthetic is embraced, and the steel rebars become an integral part of the overall design concept. In conclusion, steel rebars have a significant impact on the aesthetics of concrete structures. While their presence can sometimes hinder achieving the desired visual outcome, various techniques and design approaches can be used to either conceal or incorporate steel rebars into the overall architectural design, resulting in visually pleasing and structurally sound concrete structures.

Q: How do steel rebars affect the constructability of a project?: Steel rebars play a vital role in enhancing project constructability in multiple ways. To start, they offer structural strength and stability to reinforced concrete structures. By reinforcing the concrete, rebars help distribute the load more evenly, thus increasing overall project strength and durability. Additionally, steel rebars facilitate the construction of larger and taller structures. They provide the necessary tensile strength to counteract concrete's weakness in resisting tension forces. This empowers engineers and architects to design and build structures with greater flexibility, leading to more innovative and impressive architectural designs. Furthermore, steel rebars contribute to project integrity and safety. They act as a reinforcement against external forces like earthquakes, wind loads, and impacts. By resisting these forces, they enhance structural stability, thus reducing the risk of collapse or damage during extreme conditions. Moreover, steel rebars contribute to project longevity and maintenance. Thanks to their high tensile strength and corrosion resistance, they help extend the structure's lifespan. This, in turn, reduces the need for frequent repairs and replacements, resulting in cost savings and minimal disruption to the project. Additionally, the use of steel rebars simplifies the construction process. They can be easily cut, bent, and shaped to fit specific requirements, making them highly adaptable to various project needs. This flexibility allows for efficient construction, reducing time and effort required for implementation. In conclusion, steel rebars have a significant impact on project constructability by providing strength, stability, flexibility, safety, longevity, and simplification. Their use enables the construction of resilient and visually appealing structures, guaranteeing project success and sustainability.

Q: What is the average lifespan of steel rebars in marine environments?: Several factors can influence the average lifespan of steel rebars in marine environments. On the whole, these rebars tend to last between 50 and 100 years in such settings. This estimate considers the corrosive properties of saltwater, which can hasten the decay of steel structures. Furthermore, the quality of the steel, the marine structure's design and construction, and maintenance practices can all impact the rebars' lifespan. Regular inspections, the application of protective coatings, and appropriate maintenance can effectively prolong the rebars' longevity in marine environments.

Q: How are steel rebars bundled and tied together on construction sites?: Steel rebars, which are commonly used in construction sites to reinforce concrete structures, are bundled and tied together using a specific technique called rebar tying. This process ensures that rebars remain secure and in place during concrete pouring and other construction activities. To bundle rebars, construction workers typically gather a predetermined number of rebars, depending on the project's requirements, and align them parallel to each other. They then use wire or steel straps to tightly bind the rebars together, forming a bundle. The wire or steel straps are wrapped around the rebars at regular intervals, ensuring that the bundle remains compact and the rebars do not shift or separate. Once the rebars are bundled, they are further secured by tying them together using specialized tools. The most common tool used for rebar tying is a rebar tying gun or a rebar tier. This tool automates the process of tying rebars by quickly and efficiently twisting wire around the rebars, creating tight and secure connections. Rebar tying guns or tiers are equipped with a spool of wire that is fed through the tool. The construction worker simply positions the tool over the rebars, presses a trigger or button, and the tool automatically twists the wire around the rebars, tying them together. This process is repeated at regular intervals along the length of the rebars to ensure that they are securely fastened together. The type of wire used for rebar tying is typically a thin, high-tensile steel wire that is strong enough to withstand the forces exerted on the rebars during construction. This wire is specifically designed for rebar tying and is available in pre-cut lengths or on spools. Overall, the bundling and tying of steel rebars on construction sites is a crucial step in ensuring the structural integrity of concrete structures. The use of wire or steel straps, along with specialized rebar tying tools, allows construction workers to create secure and tightly bound bundles of rebars, preventing any movement or separation during construction activities.

Q: How are steel rebars anchored into existing concrete?: Reinforcing existing concrete structures commonly involves the use of steel rebars. The process to anchor these rebars into the concrete consists of several steps. Firstly, preparation of the concrete surface is necessary. This typically includes cleaning the area where the rebar will be anchored in order to remove any dirt, debris, or loose concrete. Additionally, roughening the surface may be required to enhance adhesion. After the surface is prepared, a bonding agent such as epoxy or a cementitious grout is applied. This bonding agent facilitates a strong bond between the rebar and the concrete. Next, the steel rebar is positioned and inserted into the prepared area. The depth at which the rebar is inserted into the concrete depends on the required anchorage depth and design specifications. Alignment at the correct depth is essential, in accordance with the structural requirements. To ensure proper anchorage, it is often necessary to bend or hook the end of the rebar. This prevents the rebar from pulling out of the concrete under tension or external forces. Lastly, the bonding agent is left to cure as per the manufacturer's instructions. This allows it to harden and form a strong bond between the rebar and the concrete. It is important to note that the precise method of anchoring steel rebars into existing concrete may vary based on the specific application and design requirements. Additional reinforcement methods, such as mechanical anchors or post-installed anchors, may be utilized in certain cases to enhance anchorage strength. Expertise from professionals and adherence to engineering guidelines are crucial to ensure the proper and safe anchoring of steel rebars into existing concrete structures.

Q: Can steel rebars be used in swimming pools and water tanks?: Yes, steel rebars can be used in swimming pools and water tanks. Steel rebars provide strength and durability to the concrete structures, making them suitable for withstanding the weight of the water and any external pressures. However, it is essential to ensure proper corrosion protection measures are in place to prevent the rebars from rusting due to the constant exposure to water.

Q: Can steel rebars be used in structures with limited construction regulations?: Yes, steel rebars can be used in structures with limited construction regulations. Steel rebars are commonly used in construction due to their high tensile strength and durability. However, it is important to note that even in structures with limited regulations, it is crucial to follow basic safety guidelines and ensure proper engineering and construction practices to ensure the structural integrity and safety of the building.

Q: What is the standard size of a steel rebar?: The standard size of a steel rebar typically ranges from 6mm to 50mm in diameter.

Q: What is the process of threading steel rebars?: Threading steel rebars involves creating threads on the ends of the rebars to allow for easy and secure connection with other rebars or structural elements. This is typically done using a machine called a rebar threading machine. The first step is to cut the rebars to the desired length and clean the ends to remove any dirt, rust, or debris that could interfere with the threading process. This ensures a smooth and accurate threading operation. Once the rebars are prepared, the rebar threading machine is set up. It consists of a spindle that rotates at a high speed, along with a threading die positioned on the spindle. The threading die has grooves and ridges designed to cut threads into the rebars. To thread a rebar, one end is inserted into the threading machine while the other end is held firmly in place. The machine is then started, and the spindle rotates to cut into the rebar's surface, creating threads by removing small amounts of material. The machine is operated until the desired length of threads is achieved, which can vary depending on project requirements and the type of connection being made. It is crucial to ensure accurate and consistent cutting of the threads to maintain the structural integrity of the rebar connections. After the threading process is complete, the threaded rebars are inspected to ensure clean and defect-free threads that meet the required standards. They are then ready for use in construction projects, where they can be connected to other rebars or structural elements using various methods such as couplers or nuts. In conclusion, threading steel rebars involves cutting and cleaning the rebars, setting up a rebar threading machine, inserting the rebars, and using a threading die to create threads. This process ensures easy and secure connection of rebars in construction projects, providing strength and stability to the structures they are used in.

Q: Are steel rebars suitable for high-rise buildings?: High-rise buildings can benefit greatly from the use of steel rebars. These reinforcing bars, also known as steel rebars, are extensively utilized in the construction industry to add strength and stability to concrete structures. The robustness of high-rise buildings necessitates sturdy structural elements that can withstand the substantial loads and forces experienced at greater heights. Steel rebars are perfectly suited for this purpose due to their exceptional tensile strength, durability, and capacity to endure heavy loads. Utilizing steel rebars in high-rise buildings presents numerous advantages. Firstly, these rebars offer outstanding tensile strength, which is essential for counteracting the tensile forces that manifest in tall structures. By distributing the load evenly throughout the building, these rebars prevent the concrete from cracking or failing under pressure. Secondly, steel rebars possess remarkable durability, rendering them ideal for enduring the stresses and strains endured by high-rise buildings. They boast a lengthy lifespan and can withstand exposure to severe environmental conditions, including extreme temperatures, moisture, and corrosion. This durability ensures the building's longevity and safety. Furthermore, steel rebars can be easily fabricated and installed, enabling efficient construction processes in high-rise buildings. The adaptability and versatility of steel rebars make them suitable for various structural designs and configurations, empowering architects and engineers to create innovative and efficient building systems. Moreover, incorporating steel rebars in high-rise buildings enhances fire resistance. Owing to steel's high melting point, steel rebars can help prevent structural collapse in the event of a fire. This factor is crucial for occupant safety and the overall integrity of the building. In conclusion, steel rebars are undeniably suitable for high-rise buildings. Their exceptional tensile strength, durability, ease of fabrication, and fire resistance make them an excellent choice for providing structural stability and strength in tall structures. Utilizing steel rebars guarantees the safety, longevity, and dependability of high-rise buildings.

Send your message to us

*Email

*TEL

*Quantity

*Unit