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 lifespan of steel rebars in different environments?: The lifespan of steel rebars can vary depending on the environment they are exposed to. In general, steel rebars have a long lifespan and can last for many decades in most environments. However, in harsh or corrosive environments such as coastal areas with high salt content or industrial areas with chemical exposure, the lifespan may be reduced. Proper maintenance and protective measures, such as coatings or cathodic protection, can significantly increase the lifespan of steel rebars in these environments.

Q:What is the typical weight of a steel rebar?: The typical weight of a steel rebar can vary depending on its diameter and length. However, the most commonly used steel rebar in construction projects is typically 20 feet long and ranges in diameter from 1/2 inch to 1 inch. For this standard size, the weight can range from around 7.5 pounds to 24 pounds per linear foot. Therefore, a 20-foot steel rebar can weigh anywhere between approximately 150 pounds to 480 pounds. It is important to note that different countries may have different weight standards for steel rebars, so it is always advisable to consult local specifications and standards for accurate information.

Q:How do steel rebars affect the overall longevity of a structure?: Steel rebars play a crucial role in enhancing the overall longevity and durability of a structure. These reinforced bars, made of high-strength steel, are strategically placed within concrete structures to provide strength, stability, and resistance against external forces. The primary function of steel rebars is to resist the tensile forces that concrete alone cannot bear. Concrete has good compressive strength but is weak in tension. By incorporating steel rebars into the concrete, the structure becomes significantly stronger and capable of withstanding various loads and stresses. The presence of rebars in a structure helps to distribute the applied load evenly throughout the structure, preventing localized cracking or failure. This ensures that the structure can withstand the weight of its own components, as well as any external loads such as wind, earthquakes, or heavy equipment. Steel rebars also play a crucial role in preventing the formation and propagation of cracks within the concrete. When exposed to environmental factors, such as temperature changes or moisture, concrete tends to expand and contract, leading to the development of cracks. However, the presence of rebars restrains the movement of the concrete, reducing the formation and size of cracks. This helps to maintain the structural integrity of the building over time, preventing further deterioration and extending its overall longevity. Moreover, steel rebars have high resistance to corrosion, which is a common problem in concrete structures exposed to harsh environments. The corrosion of rebars can lead to the development of rust, which weakens the steel and compromises the structure's strength. However, rebars are typically coated with materials such as epoxy or galvanized coatings, which act as a protective barrier against corrosion. This ensures that the rebars remain in good condition, maintaining their strength and contributing to the long-term durability of the structure. In conclusion, steel rebars are essential components in enhancing the overall longevity of a structure. By providing additional strength, distributing loads, preventing cracks, and resisting corrosion, rebars significantly improve the structural integrity and durability of concrete structures, ensuring their ability to withstand various forces and maintain their functionality over time.

Q:Can steel rebars be used in architectural detailing?: Yes, steel rebars can be used in architectural detailing. They are commonly used in reinforced concrete structures to provide strength and stability. Rebars can be shaped and arranged to create intricate architectural features and provide structural support where needed.

Q:What is the average lifespan of steel rebars in concrete structures?: The lifespan of steel rebars in concrete structures can vary based on multiple factors. Typically, if the concrete is of good quality and maintained properly, rebars can endure for numerous decades. However, the corrosion process can be expedited by exposure to environmental conditions, including moisture, chemicals, and temperature fluctuations, resulting in a shorter lifespan. In regions with high humidity or close proximity to saltwater, rebars may corrode at a faster rate. Furthermore, inadequate concrete cover or improper placement of rebars, as a result of poor construction practices, can also impact their longevity. Regular maintenance and inspections can aid in identifying potential issues and prolonging the lifespan of steel rebars in concrete structures.

Q:What are the advantages of using epoxy-coated stainless steel rebars?: Epoxy-coated stainless steel rebars offer several advantages compared to traditional steel rebars. Firstly, the epoxy coating provides excellent corrosion resistance, protecting the rebar from moisture and chemicals present in the surrounding environment. This ensures the longevity and durability of the structure, reducing maintenance and repair costs over time. Additionally, stainless steel rebars possess high strength and are resistant to fire, making them suitable for use in harsh and high-temperature conditions. The epoxy coating also enhances the bond between the rebar and the concrete, improving the overall structural integrity. Lastly, the use of stainless steel rebars reduces the risk of staining or rust bleeding, resulting in a more aesthetically pleasing end product.

Q:What is the difference between rebar bolts and steel bars?: This question can only be answered: "material should not be compared to components.". Insist on saying the difference, one is the material, and the other is the component.You may ask the difference between soil nail and anchor bar, but the topic is not. I shall be glad to answer another question!

Q:What is the impact of steel rebars on the overall carbon footprint of a building?: Steel rebars have a significant impact on the overall carbon footprint of a building. The production of steel involves high carbon emissions, contributing to greenhouse gas emissions and climate change. Additionally, the extraction of raw materials and the transportation of steel rebars further increase carbon emissions. However, steel rebars provide structural strength and durability, reducing the need for future repairs or replacements. Therefore, while the use of steel rebars does contribute to the carbon footprint, proper construction practices and efficient use of materials can help mitigate their environmental impact.

Q:How do steel rebars provide structural stability and strength to buildings?: Steel rebars provide structural stability and strength to buildings by reinforcing the concrete used in construction. The rebars are embedded within the concrete, creating a strong bond between the two materials. This reinforcement enhances the overall strength and load-bearing capacity of the building, allowing it to withstand various forces such as gravity, wind, and seismic activity. Additionally, rebars prevent the concrete from cracking or breaking under tension, ensuring the structural integrity of the building over time.

Q:How do steel rebars resist fatigue and cyclic loading?: Steel rebars are specifically designed to resist fatigue and cyclic loading due to their unique properties and design. Firstly, steel rebars are made from high-strength steel, which has excellent resistance to fatigue. High-strength steel has a higher yield strength and ultimate tensile strength compared to regular steel, allowing it to withstand repetitive loading without undergoing significant deformation or failure. This property helps rebars endure cyclic loading without experiencing fatigue failure. Moreover, steel rebars are reinforced with rib patterns along their surface. These ribs increase the surface area, enhancing the bond between the rebar and surrounding concrete. This increased bond strength helps to distribute the cyclic loads more evenly, reducing the localized stress concentration. By distributing the loads, the rebars are better able to resist fatigue and cyclic loading. Additionally, rebars are often designed with a specific diameter and spacing to optimize their load-carrying capacity and resist fatigue. The design takes into consideration the anticipated cyclic loads, ensuring that the rebars are adequately spaced and sized to handle the expected stresses. The spacing between rebars also allows for proper concrete flow and consolidation during construction, further enhancing the overall performance and resistance to fatigue. Furthermore, proper installation and quality control during construction play a crucial role in ensuring the rebars' resistance to fatigue and cyclic loading. Adequate concrete cover, proper placement within the concrete, and secure anchoring of the rebars all contribute to their ability to withstand cyclic loading over time. In summary, steel rebars resist fatigue and cyclic loading through their high-strength steel composition, ribbed surface patterns, optimized spacing and diameter, and proper installation techniques. These features work collectively to enhance their load-carrying capacity, distribute loads more evenly, and minimize stress concentration, resulting in improved resistance to fatigue and cyclic loading.

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