ASTM A615/BS4449 Standard Deformed Steel Rebars

ASTM A615/BS4449 Standard Deformed Steel Rebars System 1

ASTM A615/BS4449 Standard Deformed Steel Rebars System 2

ASTM A615/BS4449 Standard Deformed Steel Rebars System 3

ASTM A615/BS4449 Standard Deformed Steel Rebars System 4

ASTM A615/BS4449 Standard Deformed Steel Rebars

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 100 m.t.

Supply Capability:: 10000 m.t./month

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ASTM A615/BS4449 Standard Deformed Steel Rebars

Details of ASTM A615/BS4449 Standard Deformed Steel Rebars

Standard & Grade:	GB1499-98 : HRB335,HRB400,HRB500
	BS4449-1997 : GR460,GR500
	CAN/CSA-G30.18-M92 : 400W
	ASTM A615 : Gr.40, Gr.60
Diameter:	6mm;8mm;10mm;12mm;14mm;16mm;18mm;20mm;22mm;25mm;28mm;30mm;32mm;35mm;40mm
Length:	6m,9m,12m
Packing:	Bundle packing
Origin:	China
Application:	Construction,Road,Machinery processing,Welding fields.
Delivery time:	10-25 days
Shipment:	By bulk vessel or Container
Documents:	Mill Test Certificate,Commercial Invoice,Packing List,Certificate of Origin

Company Introduction of the ASTM A615/BS4449 Standard Deformed Steel Rebars

CNBM International Corporation is the most import and export platform of CNBM group(China National Building Material Group Corporation) ,which is a state-owned enterprise, ranked in 270th of Fortune Global 500 in 2015.

With its advantages, CNBM International are mainly concentrate on Cement, Glass, Iron and Steel, Ceramics industries and devotes herself for supplying high quality series of refractories as well as technical consultancies and logistics solution.

ASTM A615/BS4449 Standard Deformed Steel Rebars

Packaging & Delivery of the ASTM A615/BS4449 Standard Deformed Steel Rebars

Packaging Detail	Sea worthy packing /as per customer's packing instruction
Delivery Detail	15 ~ 40 days after receiving the deposit

FAQ

Are you a trading company or manufacturer?	Manufacturer
What’s the MOQ?	1000m2
What’s your delivery time?	15-20 days after downpayment received
Do you Accept OEM service?	Yes
what’s your delivery terms?	FOB/CFR/CIF
What's the Payment Terms?	30% as deposit,70% before shipment by T/T
	Western Union acceptable for small amount.
	L/C acceptable for large amount.
	Scrow ,Paybal,Alipay are also ok
Why choose us?	Chose happens because of quality, then price, We can give you both. Additionally, we can also offer professional products inquiry, products knowledge train (for agents), smooth goods delivery, excellent customer solution proposals.
Why choose us?
What's your available port of Shipment?	Main Port, China
What’s your featured services?	Our service formula: good quality+ good price+ good service=customer's trust
What’s your featured services?
Where are your Market?	Covering more than 160 countries in the world

Q:Are steel rebars susceptible to creep deformation?: Yes, steel rebars are susceptible to creep deformation.

Q:Can steel rebars be bent without compromising their strength?: Yes, steel rebars can be bent without compromising their strength if done within their specified bending limits and with proper techniques.

Q:What is the lifespan of a steel rebar in a concrete structure?: The lifespan of a steel rebar in a concrete structure can vary depending on various factors. Generally, a properly designed and constructed concrete structure with steel reinforcement can have a lifespan of 50 to 100 years or more. One crucial factor influencing the lifespan is the quality of the concrete and its ability to protect the steel reinforcement from external elements. Concrete acts as a barrier, shielding the steel rebar from moisture, oxygen, and other potentially corrosive substances. However, if the concrete is of poor quality, contains excessive amounts of chloride or other aggressive chemicals, or is not properly cured, it can lead to the deterioration of the rebar and significantly reduce its lifespan. Another important factor is the exposure conditions to which the concrete structure is subjected. If the structure is located in a harsh environment with high levels of humidity, saltwater exposure, or industrial pollutants, it can accelerate the corrosion process and decrease the lifespan of the rebar. Proper maintenance and periodic inspection can also play a significant role in extending the lifespan of the steel rebar in a concrete structure. Regular inspections can help identify any signs of corrosion or deterioration early on, allowing for timely repairs or protective measures to be implemented. To enhance the lifespan of steel rebar, additional protective measures can be taken during construction, such as applying corrosion-resistant coatings or using stainless steel reinforcement. These measures can significantly extend the lifespan of the rebar and enhance the overall durability of the concrete structure. In summary, the lifespan of a steel rebar in a concrete structure can vary but can typically range from 50 to 100 years or more, provided that the concrete is of good quality, the exposure conditions are not too severe, and proper maintenance and protective measures are implemented.

Q:Can steel rebars be used in the construction of museums and cultural centers?: Yes, steel rebars can be used in the construction of museums and cultural centers. Steel rebars provide structural reinforcement and are commonly used in concrete construction. They help to strengthen the concrete and enhance its durability, making them suitable for the construction of buildings that require long-term stability and protection of valuable artifacts or cultural exhibits.

Q:How do steel rebars contribute to the crack-resistance of concrete?: Steel rebars, also known as reinforcement bars, play a crucial role in enhancing the crack-resistance of concrete structures. When embedded within concrete, rebars act as a reinforcement system that helps to distribute and resist tensile forces. This is important because concrete is known for its high compressive strength but relatively low tensile strength. The primary way in which rebars contribute to crack-resistance is by absorbing tensile stresses that would otherwise cause cracks to develop in the concrete. As the load is applied to the structure, the rebars bear the tension forces, preventing the concrete from undergoing excessive tensile stress and cracking. This is particularly significant in areas where the structure is subjected to bending or flexing forces. Moreover, the bond between the steel rebars and the surrounding concrete, known as the bond strength, also plays a role in crack-resistance. The presence of rebars enhances this bond, preventing the concrete from separating or debonding under stress. This ensures that the load is effectively transferred between the rebars and the concrete, further reducing the likelihood of cracks. Furthermore, steel rebars can help control crack widths in concrete. When tensile forces are applied, the rebars act as a restraint, limiting the width of any cracks that may form. This prevents the cracks from widening and becoming more severe, preserving the overall integrity and durability of the structure. In summary, steel rebars significantly contribute to the crack-resistance of concrete by absorbing tensile stresses, enhancing the bond strength, and controlling crack widths. Their presence within the concrete structure helps to distribute and resist forces, preventing cracks from forming and ensuring the longevity and safety of the construction.

Q:How are steel rebars protected against mechanical damage during construction?: Steel rebars are protected against mechanical damage during construction through various methods. One common method is by using protective covers or sleeves made of materials such as plastic or rubber. These covers are placed over the rebars to create a physical barrier, preventing them from being directly exposed to potential sources of damage, such as heavy machinery or construction equipment. Another method of protection is by using rebar caps or safety caps. These caps are designed to fit over the ends of the rebars, providing an extra layer of protection against mechanical damage. They help to prevent the rebars from being bent, crushed, or damaged by accidental impacts. In addition to physical protection, rebars can also be protected against mechanical damage through proper storage and handling. It is important to store rebars in a designated area that is free from any potential sources of damage, such as sharp objects or heavy materials. When handling rebars, workers should use proper lifting techniques and avoid dragging them on rough surfaces, as this can cause scratches or other forms of damage. Furthermore, during construction, rebars are often inspected regularly to ensure that they are not damaged or compromised. Any rebars that show signs of damage, such as bends, cracks, or deformations, are typically replaced to maintain the structural integrity of the construction project. By implementing these protective measures, steel rebars can be safeguarded against mechanical damage during construction, ensuring their effectiveness in providing strength and reinforcement to the structures they are used in.

Q:What are the common mistakes to avoid when installing steel rebars?: Some common mistakes to avoid when installing steel rebars include improper placement or spacing of rebars, inadequate concrete cover, insufficient reinforcement overlap, incorrect bar bending or cutting, and neglecting to secure the rebars in place during concrete pouring. It is essential to follow the specifications and guidelines provided by structural engineers and adhere to industry standards to ensure proper reinforcement installation.

Q:Are steel rebars susceptible to rust?: Steel rebars can be easily affected by rust. Typically composed of carbon steel, rebars contain iron. When they come into contact with moisture and oxygen, the iron reacts and forms rust, also known as iron oxide. The presence of salt or other corrosive materials speeds up this process. The weakening of rebars due to rust formation can eventually cause structural harm if not addressed. Hence, it is vital to safeguard steel rebars by applying a suitable coating or utilizing alternative methods of corrosion prevention. This measure guarantees the durability and structural soundness of reinforced concrete structures.

Q:What is the lifespan of steel rebars in concrete structures?: The lifespan of steel rebars in concrete structures can vary depending on several factors such as the quality of the steel, the environment in which the structure is located, and the level of maintenance. However, with proper design, construction, and maintenance, steel rebars in concrete structures can typically last for several decades to over a century.

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.

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