ASTM GR60 deformed steel bar for construction

ASTM GR60 deformed steel bar for construction System 1

ASTM GR60 deformed steel bar for construction

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Loading Port:: Tianjin

Payment Terms:: TT or LC

Min Order Qty:: 25 m.t.

Supply Capability:: 100000 m.t./month

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Product Description:

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 HRB400 Deformed Steel Bar:

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 HRB400 Deformed Steel Bar:

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

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.

Q4: What makes stainless steel stainless?

A4: Stainless steel must contain at least 10.5 % chromium. It is this element that reacts with the oxygen in the air to form a complex chrome-oxide surface layer that is invisible but strong enough to prevent further oxygen from "staining" (rusting) the surface. Higher levels of chromium and the addition of other alloying elements such as nickel and molybdenum enhance this surface layer and improve the corrosion resistance of the stainless material.

ASTM GR60 deformed steel bar for construction

Q: Can steel rebars be used in marine or coastal construction projects?: Yes, steel rebars can be used in marine or coastal construction projects. However, it is important to ensure that the rebars are made of corrosion-resistant steel or are properly protected against corrosion. This is because the salty and humid environment in marine or coastal areas can accelerate the corrosion process, which can compromise the structural integrity of the rebars and the overall construction.

Q: Do steel rebars need to be coated with any protective materials?: Yes, steel rebars typically need to be coated with protective materials to prevent corrosion and extend their lifespan. The most common protective coatings for rebars include epoxy, zinc, or a combination of both. These coatings act as a barrier against moisture, chemicals, and other corrosive elements that can damage the steel over time.

Q: Can steel rebars be painted or coated?: Steel rebars can indeed be painted or coated, a common practice in construction and engineering for protecting against corrosion and enhancing their appearance. The procedure involves applying a layer of paint or coating substance onto the rebars' surface. This protective layer acts as a barrier, preventing moisture and other corrosive elements from reaching the steel, thereby extending the rebars' lifespan. Furthermore, painting or coating the rebars aids in distinguishing them from other construction materials or facilitating color-coded identification. It is crucial to utilize top-notch paint or coating materials specifically formulated for steel applications to ensure adequate adhesion and durability.

Q: What are the factors that can cause corrosion in steel rebars?: The factors that can cause corrosion in steel rebars include exposure to moisture, oxygen, chloride ions from saltwater or deicing salts, carbonation of concrete, and the presence of stray electrical currents.

Q: How are steel rebars anchored into existing concrete?: Steel rebars are commonly used to reinforce existing concrete structures. The process of anchoring steel rebars into existing concrete involves several steps. First, the concrete surface needs to be prepared. This typically involves cleaning the area where the rebar will be anchored to remove any dirt, debris, or loose concrete. The surface may also need to be roughened to provide better adhesion. Once the surface is prepared, a bonding agent such as epoxy or a cementitious grout is applied. This bonding agent helps to create a strong bond between the rebar and the concrete. Next, the steel rebar is positioned and inserted into the prepared area. The length of the rebar that is inserted into the concrete depends on the required anchorage depth and the design specifications. The rebar should be positioned at the correct depth and aligned according to the structural requirements. To ensure proper anchorage, the rebar is often bent or hooked at the end. This helps to prevent the rebar from pulling out of the concrete under tension or other external forces. Finally, the bonding agent is left to cure according to the manufacturer's instructions. This allows the bonding agent to harden and form a strong bond between the rebar and the concrete. It is important to note that the exact method of anchoring steel rebars into existing concrete may vary depending on the specific application and design requirements. In some cases, additional reinforcement methods such as mechanical anchors or post-installed anchors may be used to enhance the anchorage strength. Professional expertise and adherence to engineering guidelines are crucial to ensure the proper and safe anchoring of steel rebars into existing concrete structures.

Q: Can steel rebars be used in structures with curved or irregular shapes?: Structures with curved or irregular shapes can indeed utilize steel rebars. Owing to their remarkable flexibility, steel rebars can be easily bent or molded to accommodate the desired structure form. They find extensive application in reinforced concrete structures, where architectural or structural design calls for curved or irregular shapes. Typically, the rebars are bent or trimmed as per the required configuration and then firmly fastened in position to impart robustness and reinforcement to the structure. Consequently, this facilitates the construction of intricate structures with sophisticated designs, all while guaranteeing their steadfast structural integrity and longevity.

Q: Are steel rebars suitable for use in wastewater treatment plants?: Yes, steel rebars are suitable for use in wastewater treatment plants. They provide excellent strength and durability, making them ideal for reinforcing concrete structures in such environments. Additionally, steel rebars are corrosion-resistant, which is crucial in wastewater treatment plants where exposure to chemicals and moisture is common.

Q: Can steel rebars be bent on site?: Yes, steel rebars can be bent on site.

Q: How do steel rebars affect the overall maintenance requirements of concrete structures?: Steel rebars, being strong and durable, enhance the structural integrity of concrete structures. By providing reinforcement, rebars help in distributing the load and increasing the resistance to cracking and tension. This leads to reduced maintenance requirements for concrete structures as they become more resistant to wear and tear, environmental factors, and potential structural failures.

Q: What are the standard sizes for steel rebars?: The standard sizes for steel rebars typically range from #3 to #18, with diameters ranging from 3/8 inch to 2 1/4 inches.

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