GB Standard HRB400, 500 Hot Rolled Deformed Steel Rebars

GB Standard HRB400, 500 Hot Rolled Deformed Steel Rebars System 1

GB Standard HRB400, 500 Hot Rolled Deformed Steel Rebars

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Loading Port:: Shanghai

Payment Terms:: TT or LC

Min Order Qty:: 100 m.t.

Supply Capability:: 200000 m.t./month

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OKorder is offering GB Standard HRB400, 500 Hot Rolled Deformed Steel Rebars at great prices with worldwide shipping. Our supplier is a world-class manufacturer of steel, with our products utilized the world over. OKorder annually supplies products to African, South American and Asian markets. We provide quotations within 24 hours of receiving an inquiry and guarantee competitive prices.

Product Applications:

GB Standard HRB400, 500 Hot Rolled Deformed Steel Rebars 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 GB Standard HRB400, 500 Hot Rolled Deformed Steel Rebars are durable, strong, and wide variety of sizes.

Main Product Features:

· Premium quality

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

· Can be recycled and reused

· Mill test certification

· Professional Service

· Competitive pricing

Product Specifications:

Manufacture: Hot rolled

Grade: HRB400 500etc

Certificates: ISO, SGS, BV, CIQ

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

Packaging: Export packing, nude packing, bundled

Deformed Steel Bar
Diameter (MM)	Cross Sectional Area (MM2)	Theorectical Weight (KG/M)
6	28.27	0.222
8	50.27	0.395
10	78.54	0.617
12	113.1	0.888
14	153.9	1.21
16	201.1	1.58
18	254.5	2
20	314.2	2.47
22	380.1	2.98
25	490.9	3.85
28	615.8	4.83
32	804.2	6.31
36	1018	7.99
40	1257	9.87

HRB335

Grade	Technical data of the original chemical composition (%)
	C	Mn	Si	S	P	B
HRB335	≤0.25	≤1.60	≤0.80	≤0.045	≤0.045	>0.0008
	Physics capability
	Yield Strength(N/cm2)		Tensile Strength(N/cm2)		Elongation (%)
	≥335		≥490		≥16

HRB400

Grade	Technical data of the original chemical composition (%)
	C	Mn	Si	S	P	V
HRB400	≤0.25	≤1.60	≤0.80	≤0.045	≤0.045	0.04-0.12
	Physics capability
	Yield Strength(N/cm2)		Tensile Strength(N/cm2)		Elongation (%)
	≥400		≥570		≥14

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: what is the difference between actual weight and theoretical weight?

A3: All the section steel has two weights: actual weight and theoretical weight. Actual weight is the weighing out when the product delivered from the mill. Theoretical weight is calculated by pieces. The invoice can be based on each of them as your request.

Images:

GB Standard HRB400, 500 Hot Rolled Deformed Steel Rebars

Q: How are steel rebars stored and handled on construction sites?: Steel rebars, also referred to as reinforcing bars, play a vital role in construction projects that involve reinforced concrete structures. To guarantee their safety and effective utilization, these rebars are systematically and meticulously stored and managed on construction sites. Initially, steel rebars are typically delivered to construction sites bundled together and secured with wire or binding materials. Once unloaded from the delivery truck, they are carefully placed in specific areas called rebar yards or cages. These designated spaces are purposefully designed to accommodate the rebars' length, size, and weight, ensuring that they are elevated above the ground and shielded from moisture, dirt, and potential damage. Within the rebar yard, the rebars are commonly arranged horizontally and grouped based on their size, length, and grade. This arrangement enables easy identification and accessibility when required for construction purposes. Moreover, spacers or wooden blocks are often placed between the rebars to prevent direct contact, minimizing the risk of corrosion or entanglement. When it comes to handling steel rebars, construction workers must prioritize safety and adhere to specific guidelines. It is essential to wear personal protective equipment, such as gloves and safety boots, to prevent injuries and maintain a secure grip on the rebars. In certain cases, lifting equipment like cranes or forklifts may be utilized to move and transport the rebars to different areas of the construction site. During transportation, it is crucial to properly secure the rebars to prevent any shifting or falling that could result in accidents. Dragging the rebars on the ground should be avoided, as it can cause damage or deform their shape, compromising their structural integrity. It is of utmost importance to inspect steel rebars before use to ensure they meet the required specifications and are free from any defects. Rusty or damaged rebars should be either discarded or repaired, depending on the severity of the issue. In conclusion, steel rebars are stored and handled with great care and attention on construction sites. Proper storage in designated rebar yards, appropriate grouping and separation, and adherence to safety guidelines during handling are all crucial factors that contribute to the successful and efficient use of steel rebars in construction projects.

Q: Can steel rebars be used in offshore platform construction?: Yes, steel rebars can be used in offshore platform construction. They are commonly used as reinforcement in concrete structures to enhance their strength and durability in the harsh offshore environment.

Q: How do steel rebars affect the overall cost of maintenance?: Steel rebars can significantly impact the overall cost of maintenance. By utilizing high-quality steel rebars in construction projects, the durability and strength of structures are enhanced, leading to reduced maintenance needs in the long run. The use of corrosion-resistant rebars can also prevent deterioration caused by environmental factors, lowering maintenance expenses. Conversely, using low-quality or substandard rebars may result in structural issues and increased maintenance costs over time.

Q: Are there any specific safety guidelines for working with steel rebars?: Yes, there are specific safety guidelines for working with steel rebars. Some key guidelines include wearing appropriate personal protective equipment (PPE) such as gloves, safety glasses, and steel-toed boots. It is important to handle rebars with care to prevent injuries from sharp edges or protruding ends. Workers should also be cautious when cutting or bending rebars to avoid muscle strains or cuts. Additionally, it is essential to follow proper lifting techniques and ensure a safe working environment to minimize the risk of accidents.

Q: Can steel rebars be used in shopping mall construction?: Yes, steel rebars can be used in shopping mall construction. Steel rebars are commonly used as reinforcement in concrete structures, providing strength and stability to the building. They are extensively utilized in various construction projects, including shopping malls, to ensure the structural integrity and safety of the building.

Q: Why is the price of screw steel affected by iron ore and coal?: At the same time, rebar is the largest type of steel in our country and is the seller's market.

Q: How do steel rebars affect the durability of concrete structures?: Steel rebars play a crucial role in enhancing the durability of concrete structures. By reinforcing the concrete, rebars help to increase its tensile strength, which is otherwise low compared to its compressive strength. This is crucial because concrete is highly effective in resisting compressive forces, but it is weak in withstanding tension or bending forces. When concrete structures are subjected to external forces like vibrations, wind, or earthquakes, the rebars absorb the tension and bending forces, preventing the concrete from cracking or collapsing. This ensures that the structure remains intact and stable. Without the presence of steel rebars, concrete structures would be more prone to damage and failure under such circumstances. Additionally, steel rebars also enhance the durability of concrete structures by preventing corrosion. When embedded in concrete, rebars act as a protective barrier against moisture and oxygen, which are primary agents that lead to the corrosion of steel. By preventing the penetration of these harmful elements, rebars significantly extend the lifespan of the concrete structure. Moreover, steel rebars provide dimensional stability to concrete structures. As concrete tends to shrink and expand due to temperature changes and moisture variations, the presence of rebars helps to counteract these movements. This prevents cracks from forming and ensures the structural integrity of the concrete. In summary, steel rebars greatly enhance the durability of concrete structures by increasing their tensile strength, preventing cracking and collapse, protecting against corrosion, and providing dimensional stability. Their presence is essential for constructing long-lasting and reliable concrete structures that can withstand various external forces and environmental conditions.

Q: What is the maximum spacing allowed between steel rebars in concrete slabs?: The maximum spacing allowed between steel rebars in concrete slabs typically depends on various factors such as the thickness of the slab, the load it will bear, and the design requirements. However, as a general guideline, the maximum spacing is often specified to be around 3 times the slab thickness or 18 inches (whichever is less) to ensure proper reinforcement and structural integrity.

Q: What are the different methods of reinforcing concrete structures using steel rebars?: There are several methods of reinforcing concrete structures using steel rebars. These include placing the rebars in a grid pattern to provide overall strength and support, using stirrups or ties to hold the rebars in place and prevent them from moving, using dowel bars to connect two separate concrete elements, and using anchor bolts or hooks to secure the rebars to the existing structure. Additionally, steel mesh or fiber reinforcement can be used to enhance the overall durability and resilience of the concrete structure.