U-channels In Japanese Standard with High Quality

U-channels In Japanese Standard with High Quality System 1

U-channels In Japanese Standard with High Quality

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Loading Port:: Tianjin

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:

Japanese 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 Japanese 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 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: The products are invoicing on theoritical weight or on actual weight?

A3: We can do it in both manners, according to the customers' request.

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U-channels In Japanese Standard with High Quality

Q: What is the national standard of thread steel No. 8?: Thread steel specifications: generally including the standard grade (type code), steel nominal diameter, nominal weight (quality), the length of the specifications and the allowable difference between the above indicators. China's standard recommended nominal diameter of 6, 8, 10, 12, 16, 20, 25, 32, 40, 50mm thread steel series.

Q: Are steel rebars easy to work with?: Steel rebars can be both easy and challenging to work with, depending on the specific task and the individual's experience and skill level. In general, steel rebars are known for their strength and durability, making them a popular choice in construction projects. They are relatively easy to handle and manipulate due to their uniform shape and standardized sizes. However, working with steel rebars also requires certain precautions and techniques. Cutting and bending rebars can be physically demanding and may require specialized tools such as rebar cutters and benders. Additionally, the weight of rebars can be a challenge, especially when dealing with longer and thicker pieces. Furthermore, proper safety measures need to be followed when working with steel rebars. Wearing protective gear, such as gloves and goggles, is crucial to prevent injuries. Attention must also be paid to avoid any potential hazards, such as sharp edges and protruding rebars. Overall, while steel rebars can be relatively easy to work with for experienced professionals, they may present challenges for individuals with limited knowledge or tools. It is recommended to seek proper training and guidance when working with steel rebars to ensure safety and achieve precise results.

Q: Are steel rebars suitable for use in sports stadium construction?: Yes, steel rebars are suitable for use in sports stadium construction. Steel rebars, which are short for reinforcing bars, are commonly used in construction projects, including the building of sports stadiums. They provide enhanced strength and durability to the concrete structures by reinforcing them against tension forces. The use of steel rebars ensures that the stadium can withstand heavy loads, vibrations, and other external forces that may occur during sporting events or in case of natural disasters. Moreover, steel rebars are resistant to corrosion, which is crucial in maintaining the structural integrity of the stadium over time. Therefore, steel rebars are a reliable and suitable choice for use in sports stadium construction.

Q: How do steel rebars contribute to the overall sustainability of concrete structures?: Steel rebars contribute to the overall sustainability of concrete structures in several ways. Firstly, steel rebars enhance the durability and lifespan of concrete structures. By reinforcing the concrete, rebars provide added strength and prevent cracking or structural failures, thereby extending the life of the structure. This reduces the need for frequent repairs or replacements, saving resources and minimizing the environmental impact of construction activities. Moreover, steel rebars are 100% recyclable. At the end of a structure's life cycle, the rebars can be easily removed and recycled, reducing the demand for new raw materials and minimizing waste. This not only conserves natural resources but also reduces greenhouse gas emissions associated with the extraction and production of virgin steel. Additionally, incorporating steel rebars into concrete structures allows for the use of thinner concrete sections. By using less concrete, there is a reduced demand for cement, which is a major contributor to carbon dioxide emissions during its production. Therefore, the use of steel rebars helps to lower the overall carbon footprint of concrete structures. Furthermore, steel rebars can be designed to resist corrosion, which is a common issue in concrete structures exposed to harsh environments or in coastal areas. By providing protection against corrosion, the rebars increase the service life of the structure, reducing the need for maintenance and repairs. This not only saves costs but also reduces the environmental impact associated with maintenance activities. Overall, steel rebars play a crucial role in enhancing the sustainability of concrete structures by improving their durability, enabling recycling, reducing material consumption, and minimizing maintenance requirements. By incorporating steel rebars into concrete construction, we can create long-lasting, environmentally-friendly structures that contribute to a more sustainable built environment.

Q: What is the role of steel rebars in bridge deck construction?: Steel rebars play a crucial role in bridge deck construction. They are used to reinforce the concrete used in the construction of the bridge deck. The main function of rebars is to provide tensile strength to the concrete, as concrete is strong in compression but weak in tension. Bridge decks are subjected to various loads, including the weight of the vehicles, live loads, and environmental factors such as temperature changes and vibrations. These loads can cause the bridge deck to bend, crack, or even collapse if it lacks sufficient tensile strength. By incorporating steel rebars into the bridge deck, the tensile strength of the concrete is significantly enhanced. The rebars are strategically placed throughout the concrete structure to distribute the loads and resist tension, thereby preventing cracks and ensuring the overall structural integrity of the bridge. In addition to reinforcing the concrete, steel rebars also help to control cracks that may occur due to shrinkage or thermal expansion. When the concrete shrinks or expands, it can lead to the formation of cracks, which can compromise the durability and stability of the bridge. However, the inclusion of rebars helps to control and limit the size and extent of these cracks, ensuring the long-term performance of the bridge. Furthermore, steel rebars also aid in the transfer of loads between different components of the bridge, such as the bridge deck and the supporting piers or abutments. They help to create a continuous load path, ensuring that the loads are efficiently transmitted and distributed throughout the bridge structure. In summary, steel rebars are essential in bridge deck construction due to their ability to provide the necessary tensile strength to the concrete. They enhance the structural integrity of the bridge, control cracks, and facilitate the transfer of loads, ultimately ensuring the safety and longevity of the bridge.

Q: How long do steel rebars typically last?: The lifespan of steel rebars tends to be lengthy, enduring for numerous decades. Several factors come into play when determining the exact duration of their longevity, including the quality of the rebar, the environmental conditions it encounters, and the maintenance practices employed. Generally, steel rebars are designed to possess resistance against corrosion, a key factor influencing their durability. Nevertheless, as time passes, rebars may undergo some corrosion as a result of exposure to moisture, chemicals, or other corrosive substances. This corrosion has the potential to diminish their lifespan. The lifespan of steel rebars can be extended through regular inspections, maintenance, and the application of protective coatings. By providing adequate care, steel rebars can typically remain functional for 30 to 50 years, or possibly even longer.

Q: Are steel rebars suitable for use in structures with high resistance to corrosion?: No, steel rebars are not suitable for use in structures with high resistance to corrosion. While steel rebars are commonly used in construction due to their strength and durability, they are susceptible to corrosion when exposed to moisture and other corrosive elements. Over time, this can lead to the deterioration of the rebars and compromise the structural integrity of the entire structure. To ensure high resistance to corrosion, alternative materials such as stainless steel rebars or fiber-reinforced polymer (FRP) rebars are recommended. Stainless steel rebars contain a high percentage of chromium, which forms a protective oxide layer on the surface, preventing corrosion. FRP rebars, on the other hand, are non-metallic and do not corrode, making them an excellent choice for structures in corrosive environments. It is crucial to consider the environmental conditions and the expected lifespan of the structure when choosing the appropriate rebar material. By selecting rebars with high resistance to corrosion, the longevity and safety of the structure can be significantly improved.

Q: What are the advantages of using ribbed steel rebars?: There are several advantages to using ribbed steel rebars in construction projects. Firstly, the ribbed design of these rebars provides enhanced bonding with concrete. The ribs increase the surface area of contact between the rebar and the surrounding concrete, improving the adhesion and preventing slippage. This leads to a stronger bond, ensuring the structural integrity of the reinforced concrete. Secondly, ribbed steel rebars offer improved resistance to shear forces. The ribs act as anchor points within the concrete, distributing the load more evenly and reducing the chances of failure due to shear stress. This makes ribbed rebars ideal for applications that experience high shear forces, such as beams and columns. Additionally, the ribbed pattern of these rebars enhances their ductility. Ductility is the ability of a material to undergo deformation without breaking. The presence of ribs allows the steel rebar to stretch and bend without fracturing, making it more resistant to cracking or failure under stress. This is especially crucial in earthquake-prone areas, where the ability of a structure to absorb and dissipate energy is essential for its survival. Furthermore, ribbed steel rebars have excellent corrosion resistance. The ribs create a barrier that prevents moisture and corrosive agents from reaching the steel core. This significantly extends the lifespan of the rebar, reducing maintenance costs and ensuring the long-term durability of the reinforced concrete structure. Lastly, ribbed steel rebars are readily available and cost-effective. They are manufactured in various sizes and lengths, allowing for easy customization to suit different construction needs. Moreover, due to their popularity and widespread use, ribbed rebars are competitively priced, making them a cost-effective option for reinforcing concrete structures. In conclusion, the advantages of using ribbed steel rebars include improved bonding with concrete, enhanced resistance to shear forces, greater ductility, excellent corrosion resistance, and cost-effectiveness. These benefits make ribbed rebars an ideal choice for reinforcing concrete structures, providing strength, durability, and longevity to the construction projects.

Q: Can steel rebars be used in heritage bridge restoration?: Yes, steel rebars can be used in heritage bridge restoration. Steel rebars provide added strength and structural integrity to the bridge, ensuring its long-term stability and durability.

Q: What is the role of steel rebars in minimizing creep deformation in concrete?: The role of steel rebars in minimizing creep deformation in concrete is to provide added strength and stiffness to the structure. By reinforcing the concrete with steel rebars, it helps to resist the long-term deformation caused by creep, which is the gradual deformation that occurs under sustained load over time. The rebars act as a reinforcement, reducing the amount of deformation that the concrete experiences and enhancing its ability to withstand long-term loads without significant creep.

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