Steels Manufacture Building Material Made in China on Sale

Steels Manufacture Building Material Made in China on Sale System 1

Steels Manufacture Building Material Made in China on Sale

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 100 m.t

Supply Capability:: 1000 m.t/month

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1.Packaging & Delivery

Packaging Detail:	in bundles or as customer's requirement
Delivery Detail:	Within 30days after receiving your deposit or copy of L/C

2.Specifications

HRB400,HRB500 Steel Rebars
1.China direct supplier
2.Best service
3.Competitive price
4.Quantity assured

3.Product Description

Name	High Tensile Export Reinforcing Steel Bar ,Deformed Steel Bar ,HRB400B,HRB,46B,HRB500 Building Construction Material
Standard	ASTM A615 /BS BS 4449 /GB HRB/ JIS G3112
Grade	A615 Gr40/60/75 BS 4449 Gr460,B500 GB HRB335,HRB400 ,HRB500 JIS G3112 SD390
Diameter	6mm-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

4.Chemical Composition

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		≥470		≥14

Grade	Technical data of the original chemical composition (%)
Grade	C	Mn	Si	S	P	V
HRB500	≤0.25	≤1.60	≤0.80	≤0.045	≤0.045	0.04-0.12
	Physics capability
	≥500		≥630		≥12

5. Theorectical weight

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

Steels Manufacture Building Material Made in China on Sale

Q: What is the impact toughness of steel pipes?: The ability of steel pipes to withstand sudden or high-velocity impacts without fracturing or breaking is referred to as their impact toughness. This property measures the material's resistance to cracking when subjected to dynamic loading conditions. The impact toughness of steel pipes is highly significant as it determines their capacity to endure accidental impacts or external forces during transportation, installation, and operation. To evaluate the impact toughness of steel pipes, standardized tests such as the Charpy V-notch test or the Izod test are commonly utilized. These tests involve striking a notched sample of the steel pipe with a pendulum or a falling weight and measuring the amount of energy absorbed by the material until it fractures. The impact toughness is then calculated based on this energy absorption. A high impact toughness is desirable in steel pipes as it signifies a greater ability to absorb energy and resist fracture, making them more resilient to sudden impacts or loading conditions. This characteristic is particularly crucial in applications where steel pipes are exposed to high-stress environments, such as in oil and gas pipelines, automotive components, or structural applications. Several factors can influence the impact toughness of steel pipes, including their chemical composition, heat treatment, and microstructure. For instance, alloying elements like manganese, chromium, and nickel can enhance the impact toughness by promoting the formation of fine-grained microstructures and preventing crack propagation. Similarly, appropriate heat treatment processes like quenching and tempering can optimize the material's microstructure and mechanical properties, thereby improving its impact toughness. In conclusion, the impact toughness of steel pipes is a vital property that determines their ability to withstand sudden or high-velocity impacts. It is evaluated through standardized tests and can be influenced by factors such as chemical composition, heat treatment, and microstructure. A high impact toughness is desirable in steel pipes to ensure their structural integrity and resistance to fracture when subjected to dynamic loading conditions.

Q: How do you determine the required support spacing for steel pipes?: Various factors, including the diameter of the pipe, the strength of the material, the operating conditions, and local building codes and regulations, determine the required support spacing for steel pipes. When considering the diameter of the pipe, it is crucial to note that larger pipes generally need more frequent support to prevent excessive deflection and sagging compared to smaller pipes. The strength of the material is also a significant consideration, as pipes with greater strength can span longer distances without requiring additional support. The operating conditions of the pipe, such as the type of fluid being transported and the temperature, also play a role in determining the necessary support spacing. For instance, pipes carrying heavy or corrosive fluids may require more frequent support to prevent excessive stress and potential failure. Local building codes and regulations often provide specific guidelines for the minimum support spacing of steel pipes. These regulations take into account factors such as the diameter of the pipe, the strength of the material, the operating conditions, as well as safety and structural requirements. To accurately determine the required support spacing for steel pipes, it is essential to consult relevant codes, standards, and engineering guidelines. Additionally, working with qualified engineers and professionals experienced in pipe design and installation will ensure that the support spacing meets all necessary requirements, ensuring the safe and efficient operation of the piping system.

Q: How do you calculate the pipe flow velocity coefficient for steel pipes?: The pipe flow velocity coefficient for steel pipes can be calculated using the Manning's equation. Manning's equation is used to calculate the flow velocity in open channels and pipes, and it takes into account the hydraulic radius, slope, and roughness coefficient of the pipe. To calculate the pipe flow velocity coefficient for steel pipes, follow these steps: 1. Determine the hydraulic radius (R) of the steel pipe. The hydraulic radius is calculated by dividing the cross-sectional area of the pipe (A) by the wetted perimeter (P). The formula is R = A/P. 2. Find the slope (S) of the pipe. The slope represents the change in elevation divided by the length of the pipe. It is usually given as a ratio or a percentage. 3. Determine the roughness coefficient (n) of the steel pipe. The roughness coefficient represents the internal roughness of the pipe and can be obtained from literature or pipe manufacturer specifications. It is commonly given in terms of the Manning's roughness coefficient. 4. Substitute the values of hydraulic radius (R), slope (S), and roughness coefficient (n) into the Manning's equation: V = (1/n) * R^(2/3) * S^(1/2) where V is the flow velocity. 5. Solve the equation for V to calculate the pipe flow velocity coefficient for steel pipes. It is important to note that the calculated velocity coefficient may vary based on the specific pipe dimensions, flow conditions, and other factors. Therefore, it is recommended to consult relevant engineering standards or consult with a hydraulic engineer to ensure accurate and reliable calculations for specific applications.

Q: How are steel pipes recycled at the end of their life cycle?: Steel pipes are typically recycled at the end of their life cycle through a process called steel recycling. This involves collecting the used pipes, separating them from other materials, and then melting them down to be formed into new steel products. The recycling process not only helps conserve valuable resources but also reduces the need for new steel production, making it an environmentally sustainable solution.

Q: Can steel pipes be used for steam distribution?: Yes, steel pipes can be used for steam distribution. Steel pipes are commonly used for conveying steam due to their high heat resistance and durability. They can withstand the high temperatures and pressures associated with steam distribution, making them a suitable choice for this application.

Q: How are steel pipes coated to prevent corrosion?: To prevent corrosion, steel pipes can be coated using different methods and materials. One common approach is to apply a protective layer of paint or epoxy on the pipe's surface. This coating acts as a barrier between the steel and the external environment, preventing direct contact with moisture and corrosive substances. Another technique involves galvanization, where the steel pipes are coated with a layer of zinc. Zinc is highly resistant to corrosion and acts as a sacrificial anode. In case of any damage to the coating, the zinc corrodes instead of the steel, ensuring the steel remains intact and free from corrosion. Polyethylene or polypropylene materials can also be fused onto the steel surface, creating a strong bond that provides excellent resistance against corrosion. This method, known as fusion bonding, is commonly used in offshore and underground pipelines. Moreover, a layer of corrosion-resistant alloy can be applied to the steel pipe. This alloy is typically a combination of metals such as nickel, chromium, and molybdenum, which offer superior protection against corrosion in harsh environments. The choice of coating method depends on factors like operating conditions, the presence of corrosive substances, and the expected lifespan of the steel pipes. By effectively applying these coatings, steel pipes can be safeguarded against corrosion, extending their durability and ensuring the integrity of the infrastructure they are used in.

Q: What is the weight and strength of steel pipes?: The weight and strength of steel pipes differ based on their dimensions and the specific steel grade utilized. Typically, the weight of steel pipes is measured in pounds per foot or kilograms per meter. The strength of steel pipes is commonly evaluated in terms of yield strength and ultimate tensile strength. The weight of steel pipes can range from a few pounds per foot for smaller sizes to several hundred pounds per foot for larger diameters and thicker walls. Various factors, including the pipe's outer diameter, wall thickness, and length, impact the weight. For example, a 1-inch diameter steel pipe with a wall thickness of 0.125 inches may weigh approximately 0.67 pounds per foot. Conversely, a 12-inch diameter steel pipe with a wall thickness of 0.5 inches can weigh roughly 142 pounds per foot. The strength of steel pipes is determined by the grade of steel used, which can vary depending on the specific application and requirements. Commonly used steel grades for pipes include ASTM A53 for general purposes, ASTM A106 for high-temperature service, and API 5L for oil and gas transportation. These grades possess different yield strengths and ultimate tensile strengths. Yield strength denotes the amount of stress a steel pipe can endure before it starts to deform plastically. It is usually measured in pounds per square inch (psi) or megapascals (MPa). For instance, ASTM A53 Grade B steel pipe has a minimum yield strength of 35,000 psi (240 MPa), while API 5L Grade X65 steel pipe has a minimum yield strength of 65,000 psi (448 MPa). On the other hand, ultimate tensile strength signifies the maximum stress a steel pipe can withstand before fracturing. It is also measured in psi or MPa. For example, ASTM A106 Grade B steel pipe has an ultimate tensile strength of 60,000 psi (415 MPa), whereas API 5L Grade X65 steel pipe has an ultimate tensile strength of 77,000 psi (531 MPa). In conclusion, the weight and strength of steel pipes can vary based on their dimensions and the grade of steel used. The weight is influenced by factors like the pipe's diameter, wall thickness, and length, while the strength is determined by the steel's yield strength and ultimate tensile strength.

Q: How to establish a concrete-filled steel tubular column model in ANSYS?: A two unit model or a composite unit model can be adoptedTwo units are constructed of steel tubes and concreteA composite unit may be either a fiber element or a section conversion attribute

Q: What are the different methods of pipe repair for steel pipes?: When it comes to repairing steel pipes, there are several methods available that depend on the severity and location of the damage. Below, you will find a list of the most common methods used: 1. Welding: This method is frequently employed for fixing steel pipes, particularly when the damage is confined to a specific area. To execute this repair, the damaged portion of the pipe is removed and replaced with a new piece that is welded securely. Afterwards, the weld is thoroughly inspected to verify its strength and reliability. 2. Pipe wrapping: This approach entails wrapping a layer of fiberglass or epoxy tightly around the damaged section of the pipe. This wrap provides structural reinforcement and effectively prevents further leakage or corrosion. 3. Pipe lining: This technique involves inserting a flexible liner into the damaged pipe. The liner is typically composed of materials such as epoxy, PVC, or cured-in-place pipe (CIPP). Once inserted, the liner is either inflated or heated to conform to the shape of the pipe, creating a new inner surface that is resistant to corrosion and leakage. 4. Slip lining: Similar to pipe lining, slip lining involves placing a smaller diameter pipe inside the damaged one. The smaller pipe acts as a protective sleeve, reinforcing the structure and preventing further deterioration of the original pipe. 5. Pipe bursting: This method is utilized when the damage to the pipe is extensive. A new pipe is pulled through the damaged one using a hydraulic or pneumatic system. As the new pipe is pulled through, it bursts the old pipe, resulting in a larger diameter pipe with minimal disturbance to the surrounding area. 6. Clamp or sleeve repair: In cases where the damage is small and localized, a clamp or sleeve can be applied to temporarily or permanently fix the issue. The clamp or sleeve is placed securely over the damaged section to prevent leakage. It is important to keep in mind that the optimal method for repairing steel pipes depends on factors like the extent of damage, accessibility, cost, and structural requirements. It is recommended to consult with a professional pipe repair specialist or engineer to determine the most suitable method for your specific situation.

Q: How are steel pipes used in the manufacturing of fire sprinkler systems?: Steel pipes are commonly used in the manufacturing of fire sprinkler systems due to their durability and fire resistance properties. These pipes serve as a reliable conduit for water or fire suppression agents to flow through, ensuring that the sprinkler system effectively extinguishes fires. The high strength of steel pipes allows for the construction of a robust and long-lasting system that can withstand high pressure and heat, making them an ideal choice for fire safety installations.

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