Steel Deform Bar High Quality Steel,12mm ,HRB 500B Steel building Structural

Steel Deform Bar High Quality Steel,12mm ,HRB 500B Steel building Structural System 1

Steel Deform Bar High Quality Steel,12mm ,HRB 500B Steel building Structural

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Loading Port:: Tianjin

Payment Terms:: TT or LC

Min Order Qty:: 30 m.t.

Supply Capability:: 35000 m.t./month

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Product Specifications of Steel Deform Bar High Quality Steel,12mm ,HRB 500B Steel building Structural

Steel Deform Bar HRB 500B
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Product Description Steel Deform Bar High Quality Steel,12mm ,HRB 500B Steel building Structural

Name	High Quality Steel,12mm Steel Deform Bar,HRB 500B Steel building Structural
Standard	ASTM A615 /BS BS 4449 /GB HRB/ JIS G3112
Grade	HRB500B
Diameter	12mm-40mm
Length	6-12m
Technique	Low temperature hot-rolling reinforcing deformed steel rebar
Tolerance	As the standard or as your requirement
Application	Building, construction, road, bridge,etc
Certificated	BV
MOQ	500tons per size steel rebar
Packing details	Steel rebar packed in bundle or as your requirement
Delivery	Within 30 days after deposit
Payment	T/T or L/C

Chemical Composition of Steel Deform Bar High Quality Steel,12mm ,HRB 500B Steel building Structural

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

Theorectical weight of Steel Deform Bar High Quality Steel,12mm ,HRB 500B Steel building Structural

Diameter (MM)	Cross Sectional Area (MM2)	Theorectical Weight (KG/M)	Weight of 12M Bar (KG)	A Ton Contains 12M Bars (PCS)
6	28.27	0.222	2.664	375.38
8	50.27	0.395	4.74	210.97
10	78.54	0.617	7.404	135.06
12	113.1	0.888	10.656	93.84
14	153.9	1.21	14.52	68.87
16	201.1	1.58	18.96	52.74
18	254.5	2	24	41.67
20	314.2	2.47	29.64	33.74
22	380.1	2.98	35.76	27.96
25	490.9	3.85	46.2	21.65
28	615.8	4.83	57.96	17.25
32	804.2	6.31	75.72	13.21
36	1018	7.99	98.88	10.43
40	1257	9.87	118.44	8.44

Product Picture of Steel Deform Bar High Quality Steel,12mm ,HRB 500B Steel building Structural

Steel Deform Bar High Quality Steel,12mm ,HRB 500B Steel building Structural

Q:What is the difference between mild steel rebars and high-strength steel rebars?: Mild steel rebars and high-strength steel rebars are two different types of reinforcement bars used in construction. The key difference between these two lies in their composition and mechanical properties. Mild steel rebars, also known as low carbon steel rebars, are made from steel with a relatively low carbon content. Typically, they have a carbon content of about 0.15% to 0.30%. These rebars are commonly used in general construction projects where the concrete structure does not require high tensile strength. Mild steel rebars have a relatively lower yield strength and ultimate tensile strength compared to high-strength steel rebars. On the other hand, high-strength steel rebars, also known as high tensile strength rebars or HSD bars, are made from steel with a higher carbon content, typically ranging from 0.40% to 0.60%. These rebars are specially designed to provide superior strength, durability, and load-bearing capacity. High-strength steel rebars have a significantly higher yield strength and ultimate tensile strength compared to mild steel rebars. This makes them suitable for use in critical structures that require a high load-bearing capacity, such as bridges, high-rise buildings, and industrial structures. Another important difference between mild steel rebars and high-strength steel rebars is their ductility. Mild steel rebars have better ductility, meaning they can undergo more deformation before failing. This property allows mild steel rebars to absorb more energy during an earthquake or other dynamic loads, making them suitable for seismic zones. High-strength steel rebars, on the other hand, have lower ductility but higher stiffness and strength, making them more resistant to extreme loads and providing better structural integrity. It is important to note that while high-strength steel rebars offer superior strength and load-bearing capacity, they are also more expensive compared to mild steel rebars. Therefore, the choice between these two types of rebars depends on the specific requirements of the construction project, including the structural design, load conditions, and budget constraints.

Q:How are steel rebars measured?: The standardized system known as the "bar size number" is utilized to measure steel rebars. Each rebar size is assigned a numerical value, which corresponds to its diameter. The diameter is measured in inches or millimeters, depending on the region or country. In the United States, the bar size number ranges from #3 to #18 and indicates the diameter in eighths of an inch. For example, a #3 rebar has a diameter of 3/8 inch, while a #8 rebar has a diameter of 1 inch. Beyond #8, the diameter is measured in quarters of an inch. A #11 rebar, for instance, has a diameter of 1 1/8 inches, and a #18 rebar has a diameter of 2 1/4 inches. In metric countries, millimeters are used to measure rebars. The diameter is usually rounded to the nearest millimeter. For instance, a 10 mm rebar is equivalent to a #3 rebar in the US, and a 25 mm rebar is equivalent to a #8 rebar. To determine the length of a rebar, a tape measure or ruler is employed. The length is typically measured in feet or meters. Rebars are commonly available in 20 or 40 feet (6 or 12 meters) lengths, but they can also be cut to custom lengths as per project requirements. It is important to note that the measurement system may vary slightly in different regions or countries. Therefore, it is crucial to consult local standards and codes for accurate measurement guidelines.

Q:What is the process of painting steel rebars?: The process of painting steel rebars typically involves several steps. First, the rebars must be cleaned thoroughly to remove any dirt, grease, or rust. This can be done using various methods such as sandblasting, wire brushing, or chemical cleaning. After cleaning, a primer is applied to the rebars to promote adhesion and corrosion resistance. The rebars are then left to dry before the final coating of paint is applied. This final coat can be either a solvent-based or water-based paint, depending on the desired finish and environmental considerations. The rebars are left to dry and cure, and once the paint is fully dried, they are ready to be used in construction projects.

Q:Are steel rebars suitable for reinforcement in theme parks and amusement centers?: Yes, steel rebars are suitable for reinforcement in theme parks and amusement centers. Steel rebars are commonly used in construction due to their high strength and durability. They provide excellent reinforcement to concrete structures, ensuring the safety and stability of the infrastructure in theme parks and amusement centers, where heavy loads and frequent foot traffic are expected.

Q:How do steel rebars affect the shrinkage and creep behavior of concrete?: Steel rebars can significantly affect the shrinkage and creep behavior of concrete. Shrinkage refers to the contraction of concrete as it dries and hardens, while creep refers to the long-term deformation of concrete under sustained load. The presence of steel rebars in concrete can reduce the overall shrinkage of the concrete due to two main reasons. Firstly, the steel rebars provide a restraint against shrinkage by resisting the tensile forces that develop during drying. This restraint reduces the overall volume change of the concrete, minimizing the shrinkage. Secondly, the rebars also act as a barrier to moisture movement, limiting the drying and shrinkage of the concrete. However, the addition of steel rebars can also influence the creep behavior of concrete. Creep is influenced by the modulus of elasticity and the strength of the material, and the presence of steel rebars can alter these properties. The high modulus of elasticity and strength of steel rebars can cause the concrete to experience higher levels of creep due to the differential deformation between the concrete and the steel. Moreover, the bond between the rebars and the concrete also plays a role in affecting the creep behavior. The bond strength between the rebars and the concrete can influence the transfer of stress from the concrete to the rebars, affecting the overall creep behavior of the composite material. In summary, steel rebars can reduce the shrinkage of concrete by providing restraint against drying and minimizing moisture movement. However, they can also influence the creep behavior of concrete due to their modulus of elasticity, strength, and the bond between the rebars and the concrete. Understanding the interaction between steel rebars and concrete is crucial in designing structures that can withstand shrinkage and creep effects.

Q:How do steel rebars affect the thermal properties of a structure?: The thermal properties of a building or structure can be significantly influenced by steel rebars, which are commonly used in reinforced concrete structures. To begin with, steel rebars have a higher thermal conductivity than concrete. This means that when embedded within concrete, they can serve as thermal bridges, allowing heat to easily transfer through the structure. Consequently, there is increased heat loss during colder months and increased heat gain during warmer months, leading to higher energy consumption for heating and cooling. Additionally, the thermal expansion and contraction of the structure can be affected by steel rebars. Compared to concrete, steel has a higher coefficient of thermal expansion, causing it to expand and contract more with temperature changes. This differential movement between the steel rebars and the surrounding concrete can result in cracks and structural deformations, compromising the overall thermal performance of the structure. Moreover, the moisture behavior of a structure can also be influenced by steel rebars. As previously mentioned, steel has a higher thermal conductivity and electrical conductivity than concrete. This electrical conductivity can promote the corrosion of steel rebars when they come into contact with moisture or water. Consequently, corrosion leads to the formation of rust, which expands and further damages the surrounding concrete. This, in turn, increases moisture ingress, compromising the insulation properties of the structure and potentially causing mold growth and other moisture-related issues. To conclude, steel rebars have direct and indirect impacts on the thermal properties of a structure. They act as thermal bridges, affecting heat transfer, and their differential thermal expansion and corrosion potential can compromise the overall thermal performance and moisture behavior of the structure. Proper design, insulation, and corrosion protection measures should be implemented to mitigate these effects and ensure optimal thermal performance.

Q:What are the advantages of using deformed steel rebars?: Using deformed steel rebars in construction projects offers several benefits. Firstly, the unique shape of the rebars enhances the bond with the surrounding concrete. The ridges, bumps, or indentations on the surface of the rebar increase the contact area with the concrete, resulting in improved adhesion. This ensures a stronger bond between the rebar and the concrete, making the overall structure more resistant to forces such as tension, compression, and shear. Secondly, deformed steel rebars provide better resistance to slippage. The irregular surface of the rebar prevents it from easily slipping or moving within the concrete. This is particularly advantageous in structures exposed to seismic activity or heavy loads, as it helps maintain the integrity and stability of the construction. Additionally, the use of deformed steel rebars enhances the overall strength and durability of the project. The deformations on the rebar's surface allow it to better absorb and distribute stress, making it less prone to cracking or failure under high loads. This strength and durability make deformed rebars suitable for various applications, such as bridges, high-rise buildings, and industrial structures. Furthermore, deformed steel rebars offer cost-effectiveness in long-term maintenance. The improved bond between the rebar and concrete reduces the risk of corrosion and deterioration over time. This leads to reduced maintenance and repair costs, as the structure remains resilient and less prone to structural degradation caused by environmental factors. Lastly, deformed steel rebars provide versatility in design. The market offers various types and sizes of deformed rebars, allowing engineers and designers to choose the most suitable option for their specific project requirements. This design flexibility ensures that the rebars can be tailored to meet the structural demands of different applications, contributing to the construction project's overall efficiency and safety. In conclusion, the advantages of using deformed steel rebars include enhanced bonding with concrete, resistance to slippage, improved structural strength and durability, cost-effectiveness in maintenance, and versatility in design. These advantages make deformed steel rebars a preferred choice in construction projects where strength, stability, and long-term performance are crucial considerations.

Q:How are steel rebars cut and bent on-site?: Steel rebars are cut and bent on-site using specialized equipment such as rebar cutters and benders. The rebars are measured, marked, and then cut to the required length using the cutter. After cutting, the rebars are placed into the bender machine where they are bent to the desired shape or angle. This process ensures that the rebars are tailored to fit the specific construction requirements of the project.

Q:How do steel rebars affect the overall stability of a structure?: Steel rebars play a crucial role in enhancing the overall stability of a structure. By reinforcing concrete, rebars increase its tensile strength and prevent cracking or collapsing under heavy loads or external forces. This reinforcement allows the structure to bear more weight, withstand seismic activity, and resist deformation, ultimately ensuring its durability and safety.

Q:How do steel rebars contribute to the structural soundness of a building?: Steel rebars contribute to the structural soundness of a building by providing reinforcement to concrete structures. By adding strength and stability to the concrete, rebars help prevent cracks and structural failures, especially during heavy loads, seismic activities, or extreme weather conditions. They enhance the tensile strength of concrete, which is otherwise weak in tension, and allow it to withstand greater forces, thereby increasing the overall durability and longevity of the building.

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