ASTM, GB Standard Hot Rolled Deformed Steel Rebars

ASTM, GB Standard Hot Rolled Deformed Steel Rebars System 1

ASTM, GB Standard Hot Rolled Deformed Steel Rebars

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Loading Port:: Lianyungang

Payment Terms:: TT OR LC

Min Order Qty:: 25 m.t.

Supply Capability:: 200000 m.t./month

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Specifications of ASTM, GB Standard Hot Rolled Deformed Steel Rebars:

Standard	GB	HRB400
Diameter	6mm,8mm,10mm,12mm,14mm,16mm,18mm,20mm, 22mm,25mm,28mm,32mm,36mm,40mm,50mm

Length	6M, 9M,12M or as required
Place of origin	Hebei, China mainland
Advantages	exact size, regular package, chemical and mechanical properties are stable.
Type	Hot rolled deformed steel bar
Brand name	DRAGON

Chemical Composition: (Please kindly find our chemistry of our material based on HRB500 as below for your information)

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
	Physical capability
	Yield Strength (N/cm²)		Tensile Strength (N/cm²)			Elongation (%)
	≥400		≥570			≥14

Theoretical weight and section area of each diameter as below for your information:

Diameter(mm)	Section area (mm²)	Mass(kg/m)	Weight of 12m bar(kg)
6	28.27	0.222	2.664
8	50.27	0.395	4.74
10	78.54	0.617	7.404
12	113.1	0.888	10.656
14	153.9	1.21	14.52
16	201.1	1.58	18.96
18	254.5	2.00	24
20	314.2	2.47	29.64
22	380.1	2.98	35.76
25	490.9	3.85	46.2
28	615.8	4.83	57.96
32	804.2	6.31	75.72
36	1018	7.99	98.88
40	1257	9.87	118.44
50	1964	15.42	185.04

Usage and Applications of ASTM, GB Standard Hot Rolled Deformed Steel Rebars:

Deformed bar is widely used in buildings, bridges, roads and other engineering construction. Big to highways, railways, bridges, culverts, tunnels, public facilities such as flood control, dam, small to housing construction, beam, column, wall and the foundation of the plate, deformed bar is an integral structure material. With the development of world economy and the vigorous development of infrastructure construction, real estate, the demand for deformed bar will be larger and larger..

Packaging & Delivery of ASTM, GB Standard Hot Rolled Deformed Steel Rebars:

Packaging Detail: products are packed in bundle and then shipped by container or bulk vessel, deformed bar is usually naked strapping delivery, when storing, please pay attention to moisture proof. The performance of rust will produce adverse effect.

Each bundle weight: 2-3MT, or as required

Payment term: TT or L/C

Delivery Detail: within 45 days after received advanced payment or LC.

Label: to be specified by customer, generally, each bundle has 1-2 labels

Trade terms: FOB, CFR, CIF

Deformed Steel Bar in container

Deformed Steel Bar in factory

Note:

1. Our products are produced according to national standard (GB), if not, supply according to national standards (GB) or agreement as customer required.

2. Other Grade and Standard Deformed Steel Bar we can supply:

Grade: GR40/GR60, G460B/B500A/B500B/B500C,BST500S

Standard: ASTM, BS, DIN

The Minimum Order Quantity of these products is high, and need to be confirmed.

3. We can not only supply Deformed Steel Bar; if you need anything about building materials, please contact us for further information.

4. Please send us your detail specifications when inquire. We will reply to you as soon as possible. We sincerely hope we can establish a long stable business relationship.

Q:Can steel rebars be used in structures with high levels of carbonation or acid attack?: No, steel rebars should not be used in structures with high levels of carbonation or acid attack. Steel is susceptible to corrosion in acidic environments, and high carbonation levels can increase the acidity of the surroundings. In such conditions, alternative materials that are resistant to corrosion and acid attack, such as stainless steel or fiber-reinforced polymers, should be considered for structural reinforcement.

Q:Why is the price of screw steel affected by iron ore and coal?: The required material is simple, "billet, iron ore with a small amount of chemical elements", and then through the hot rolling method of refining, during which a large amount of coal is needed, so the price of rebar will be affected by iron ore and coal

Q:What are the common quality issues found in steel rebars?: Some common quality issues found in steel rebars include insufficient strength or hardness, improper dimensions or shape, surface defects such as cracks or rust, and inadequate corrosion resistance. Other issues may include improper labeling or marking, poor welding or bonding properties, and inconsistent mechanical properties throughout the rebar.

Q:How do steel rebars contribute to the stability of a structure?: Steel rebars contribute to the stability of a structure by providing reinforcement to the concrete. They enhance the structural strength and integrity of the building, by increasing its resistance to tension, compression, and bending forces. The rebars prevent cracks and failure in the concrete under heavy loads, improving the overall durability and safety of the structure.

Q:Can the thread steel of the steel platform of the fixed unloading platform not work?: Steel bars on a fixed discharge platform must not be threaded. HPB grade reinforcement shall be used.

Q:What are the factors to consider while calculating the required number of steel rebars in a project?: Some factors to consider while calculating the required number of steel rebars in a project include the structural design and requirements, the load-bearing capacity needed, the dimensions and layout of the structure, the type and grade of steel rebar being used, and any applicable building codes and regulations. Additionally, factors such as the spacing between rebars, the concrete cover thickness, and any potential corrosion protection measures may also need to be considered.

Q:Can steel rebars be used in structures subjected to chemical exposure?: When structures are exposed to chemicals, it is important to consider the type and concentration of the chemicals involved. Steel rebars can be used in these structures, as steel is generally resistant to many chemicals. However, certain corrosive substances can degrade the rebars and compromise their integrity. In such situations, it is crucial to choose the appropriate grade of steel rebars that offer enhanced resistance to chemical corrosion. Stainless steel rebars, for example, contain a higher proportion of chromium and other alloying elements, making them highly resistant to a wide range of chemicals. These rebars are commonly used in structures exposed to aggressive chemical environments, such as wastewater treatment facilities, chemical plants, and marine structures. Furthermore, protective coatings can be applied to steel rebars to further enhance their resistance to chemical exposure. Coatings like epoxy or polymers create a barrier that prevents direct contact between the rebar and the chemical, minimizing the risk of corrosion. These coatings are commonly used in structures exposed to chemicals like sulfuric acid or chloride ions. To ensure the long-term durability and safety of structures in chemically aggressive environments, it is important to consult with structural engineers and corrosion specialists. They can help determine the most suitable type of steel rebars and protective coatings for a specific chemical exposure scenario. Proper design, material selection, and maintenance practices are essential in these environments.

Q:Can steel rebars be used in swimming pool construction?: Yes, steel rebars can be used in swimming pool construction. Steel rebars are commonly used as reinforcement in concrete structures, including swimming pools, to provide additional strength and structural integrity.

Q:Can steel rebars be used in precast or prestressed concrete?: Yes, steel rebars can be used in both precast and prestressed concrete. Rebars are commonly used in these construction methods to provide reinforcement and enhance the strength and durability of the concrete structures.

Q:What is the maximum length of a steel rebar?: The maximum length of a steel rebar can vary depending on several factors such as the specific project requirements, transportation limitations, and manufacturing capabilities. In general, steel rebars are commonly available in lengths ranging from 20 feet (6 meters) to 60 feet (18 meters). However, longer lengths can be achieved through specialized fabrication techniques, such as welding or splicing, which allow for the connection of multiple rebars to create longer lengths as needed. It is important to consult with structural engineers, architects, and construction professionals to determine the appropriate length of steel rebars for a specific project, considering factors such as structural integrity, safety, and logistics.

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