50mm*15.42kg/m Deformed steel bar for construction

50mm*15.42kg/m Deformed steel bar for construction System 1

50mm*15.42kg/m 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:

OKorder is offering 50mm*15.42kg/m deformed steel bar for construction 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 European, North American and Asian markets. We provide quotations within 24 hours of receiving an inquiry and guarantee competitive prices.

Product Applications:

50mm*15.42kg/m Deformed steel bar 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 Deformed steel bar 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:

1.Detailed Product Description:

1.High Quality and the best service ;
2..Cheapest Price ;
3.many lines for making ;
4.verious size of Product.

2.Specifications:

Deformed bars/reinforced bars:
1.Material:GB--HRB400/HRB500 ; BS4449--460B/500B;

ASTM A615-Gr40/60 ; AS4671--500N/500E;

JISG3112--SD400 ; DIN488-1--BST500S;

KS-SD390.

2.Standard.:ASTM/JIS/DIN/BS/GB/KS.
3.Diameter:6-50mm.

The Specification of Deformed Steel Bars

THEORETICAL WEIGHT INDEX
THEORETICAL WEIGHT INDEX
SIZE(mm)	CUT AREA(cm2)	THEORETICAL WEIGHT(kg/m)
8	0.503	0.395
9	0.636	0.5
10	0.79	0.62
12	1.13	0.89
14	1.54	1.21
16	2.01	1.58
18	2.55	2
20	3.14	2.47
22	3.8	2.98
25	4.91	3.85
28	6.16	4.83
32	8.04	6.31

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/cm 2 )		Tensile Strength(N/cm 2 )			Elongation (%)
	≥ 335		≥ 490			≥ 16

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/cm 2 )		Tensile Strength ( N/cm 2 )		Elongation (%)
	≥ 400		≥570		≥ 14

Steel Rebar, Deformed Steel Bar, Iron Rods For Construction/Concrete Material

FAQ:

Q1: How do we guarantee the quality of our products?

A1: 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.

Q2: Can stainless steel rust?

A2: Stainless does not "rust" as you think of regular steel rusting with a red oxide on the surface that flakes off. If you see red rust it is probably due to some iron particles that have contaminated the surface of the stainless steel and it is these iron particles that are rusting. Look at the source of the rusting and see if you can remove it from the surface.

Q:What is the yield strength of steel rebars?: The yield strength of steel rebars typically ranges from 40,000 to 100,000 pounds per square inch (psi), depending on the grade of steel used.

Q:Can steel rebars be used in structures with high resistance to UV radiation?: Steel rebars are not typically recommended for use in structures with high exposure to UV radiation. Rebars made of traditional carbon steel are susceptible to corrosion when exposed to UV radiation, as the sun's rays can break down the protective oxide layer on the surface of the steel, leading to rust and deterioration over time. Additionally, UV radiation can cause the steel to expand and contract, which can weaken its overall strength and structural integrity. To counteract these issues, alternative materials such as stainless steel rebars or epoxy-coated rebars are often used in structures where high resistance to UV radiation is required. Stainless steel rebars have a higher resistance to corrosion and are more durable when exposed to UV radiation. Epoxy-coated rebars have a protective layer of epoxy coating that shields the steel from direct exposure to UV radiation, reducing the risk of corrosion. It is important to consult with structural engineers and professionals to determine the appropriate type of rebars to be used in structures with high resistance to UV radiation. Factors such as the specific environment, climate conditions, and project requirements should be taken into consideration to ensure the longevity and safety of the structure.

Q:Can steel rebars be used in the construction of retaining walls?: Yes, steel rebars can be used in the construction of retaining walls. They are commonly used to reinforce the concrete structure of retaining walls, providing added strength and stability. The rebars are typically placed horizontally and vertically within the concrete to prevent cracks and withstand the pressure exerted by the retained soil.

Q:What are the limitations of using steel rebars?: There are several limitations associated with using steel rebars in construction projects. Firstly, steel rebars are susceptible to corrosion. When exposed to moisture and oxygen, they can start to rust over time. This corrosion weakens the rebars and compromises the structural integrity of the concrete. To mitigate this issue, rebars are usually coated with epoxy or other protective coatings, but these coatings can deteriorate over time and require maintenance. Secondly, steel rebars have a high thermal expansion coefficient. This means that they expand and contract significantly with changes in temperature. This can lead to stress and cracking in the concrete, particularly in regions with extreme temperature variations. To minimize these effects, engineers often use expansion joints or other techniques to accommodate the thermal expansion of the rebars. Additionally, steel rebars are heavy and can be challenging to handle and transport. Their weight can increase the overall weight of the structure, which may require additional support or reinforcement. Moreover, the transportation of steel rebars to construction sites can be costly and time-consuming. Furthermore, steel rebars are a finite resource and their production has an environmental impact. The extraction and production of steel require significant amounts of energy and can contribute to greenhouse gas emissions. Additionally, the depletion of natural resources required for steel production is a concern. Lastly, steel rebars are conductive to heat and electricity, which can pose safety risks in certain situations. For example, in areas prone to lightning strikes, the presence of steel rebars can increase the likelihood of electrical damage. In conclusion, while steel rebars are widely used in construction due to their strength and durability, they have limitations such as susceptibility to corrosion, thermal expansion issues, high weight, environmental impact, and electrical conductivity. It is crucial for engineers and architects to consider these limitations and employ appropriate measures to address them in construction projects.

Q:What are the advantages of using steel rebars in construction?: There are several advantages of using steel rebars in construction. Firstly, steel rebars offer high tensile strength, making them ideal for reinforcing concrete structures and providing additional support. Secondly, steel rebars are durable and have a long lifespan, ensuring the longevity and stability of the construction. Additionally, steel rebars are resistant to corrosion, which is crucial for projects exposed to moisture or harsh environmental conditions. Finally, steel rebars can be easily fabricated and shaped to meet specific design requirements, providing flexibility and versatility in construction projects.

Q:How do steel rebars affect the overall vibration resistance of a structure?: The overall vibration resistance of a structure can be significantly enhanced by the use of steel rebars. These reinforcement bars, also known as rebars, are typically made of high-strength steel and are commonly utilized in reinforced concrete structures. Rebars play a crucial role in providing tensile strength to the concrete, which is inherently weak in tension. By embedding the rebars within the concrete, they effectively counteract the potential tensile forces resulting from applied loads or vibrations. Steel rebars assist in distributing stress and strain throughout the structure, thereby preventing localized failure points and increasing the overall structural integrity. Furthermore, rebars act as a damping mechanism in the case of vibrations, absorbing and dissipating vibrational energy. This damping effect reduces both the amplitude and frequency of vibrations, thereby enhancing the structure's resistance to damage caused by vibrations. Additionally, the presence of rebars enhances the dynamic properties of the structure, including its natural frequency and mode shapes. This is particularly crucial in structures such as bridges, tall buildings, or industrial facilities, where external factors like wind, seismic events, or machinery operations can induce vibrations. To summarize, steel rebars enhance the overall vibration resistance of a structure by providing additional strength, distributing stress, and acting as a damping mechanism. Their presence improves structural integrity, reduces the risk of failure, and ensures the safety and longevity of the construction.

Q:How are steel rebars protected against damage from seismic events?: Steel rebars are protected against damage from seismic events by using various techniques. One common method is to design and construct buildings with reinforced concrete structures that incorporate adequate steel reinforcement. This reinforcement provides additional strength and flexibility to withstand the forces generated during an earthquake. Additionally, engineers may employ measures such as seismic bracing, base isolation systems, or dampers to absorb and dissipate seismic energy, further protecting the steel rebars and the overall structure from damage.

Q:How are steel rebars tested for tensile strength?: Steel rebars are tested for tensile strength by subjecting them to a controlled force in a testing machine. This machine applies an increasing load to the rebar until it fractures. The maximum force applied to the rebar before it breaks is then recorded as the tensile strength.

Q:What is the process of deforming steel rebars for better adhesion with concrete?: Ribbing or rib deformation is the name given to the process of deforming steel rebars in order to improve their adhesion with concrete. This process entails generating small ridges or raised patterns on the surface of the rebar, which enhances the bond between the steel and the concrete. Typically, the ribbing process is carried out using a mechanical technique known as cold rolling. Cold rolling is a metalworking procedure wherein the steel rebar is passed through a sequence of rollers that apply pressure to the surface, resulting in plastic deformation. These rollers are designed with specific patterns or configurations that create the desired ribbing on the rebar. The purpose of ribbing is to augment the surface area of the rebar that comes into contact with the concrete. The ridges or patterns produced by the ribbing procedure provide additional points of adhesion for the concrete to grip onto, thereby significantly enhancing the bond strength between the two materials. This strengthened bond is vital for reinforcing concrete structures, as it helps to distribute loads and withstand tensile forces. The ribbing process finds widespread use in the construction industry for reinforcing concrete structures such as beams, columns, and slabs. The specific pattern and depth of the ribbing may vary depending on the project requirements and the type of rebar being utilized. Manufacturers often adhere to industry standards and guidelines to ensure the appropriate design and placement of ribbed rebars. To sum up, the process of deforming steel rebars to improve their adhesion with concrete involves ribbing or the creation of ridges on the rebar's surface. This is achieved through cold rolling, wherein the rebar is passed through rollers designed with specific patterns. Ribbing increases the surface area and provides additional points of adhesion, thereby enhancing the bond between the concrete and the rebar.

Q:How are steel rebars used in slab construction?: Steel rebars are commonly used in slab construction to reinforce and strengthen concrete slabs. They are placed within the concrete before it is poured, forming a grid-like structure that provides added support to the slab. This helps to prevent cracking and structural failure, as the rebars help distribute the load and resist tension forces.

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