Steels Manufacture Building Material Construction on Hot Sale

Steels Manufacture Building Material Construction on Hot Sale System 1

Steels Manufacture Building Material Construction on Hot 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 Construction on Hot Sale

Q: What does "steel pipe SC" mean?: SC is an ordinary welded pipe, equal to water professional DN, SC is welded steel pipe concealed, general pipe wall is relatively thick, S represents pipe material, C represents laying mode, TC stands for wire pipe concealed, pipe wall is thinner.

Q: What is the impact of steel pipe size on flow rate and pressure?: Both the flow rate and pressure are significantly impacted by the size or diameter of a steel pipe. To begin with, the flow rate represents the amount of fluid that can pass through the pipe within a given time frame. A larger diameter allows for a greater flow rate as it provides more space for the fluid to move through. This is because a larger cross-sectional area creates less resistance for the fluid. Consequently, increasing the size of the steel pipe generally leads to an increase in flow rate. Additionally, the size of a pipe affects the pressure within it. As the fluid flows through the pipe, it encounters friction against the pipe walls, resulting in resistance. This resistance causes a drop in pressure along the length of the pipe. A smaller diameter pipe experiences higher frictional losses, leading to a greater pressure drop. Conversely, a larger diameter pipe reduces frictional losses, resulting in a lower pressure drop. Therefore, increasing the size of the steel pipe typically leads to a decrease in pressure drop. It is important to note that although increasing the size of a steel pipe generally leads to a higher flow rate and lower pressure drop, other factors can also influence these parameters. These factors include the properties of the fluid, the length and layout of the pipe, and the presence of valves or fittings. Therefore, it is crucial to consider all these factors and perform accurate calculations or simulations to determine the specific impact of steel pipe size on flow rate and pressure within a given system.

Q: What are the different methods of non-destructive testing for steel pipes?: The different methods of non-destructive testing for steel pipes include visual inspection, ultrasonic testing, magnetic particle testing, liquid penetrant testing, and radiographic testing. These methods are used to detect defects or abnormalities in the pipes without causing any damage. Visual inspection involves a thorough visual examination of the pipe's surface. Ultrasonic testing uses high-frequency sound waves to identify internal flaws or thickness measurements. Magnetic particle testing detects surface and near-surface defects by applying a magnetic field and inspecting for magnetic particles. Liquid penetrant testing involves applying a liquid dye to the surface and inspecting for any visible indications of defects. Radiographic testing uses X-rays or gamma rays to capture images that reveal internal defects or flaws in the steel pipes.

Q: Can steel pipes be used for mining applications?: Yes, steel pipes can be used for mining applications. Steel pipes are known for their strength, durability, and resistance to extreme conditions, making them suitable for various mining activities such as transporting water, air, or chemicals, as well as for structural support and ventilation systems in mines.

Q: Can steel pipes be used for firefighting systems?: Yes, steel pipes can be used for firefighting systems. Steel pipes are commonly used for their durability and resistance to high temperatures, making them suitable for transporting water and other fire suppression agents. They are typically used in larger commercial or industrial buildings where the fire protection system requires a higher flow rate and pressure. Steel pipes also have the advantage of being able to withstand external forces and impacts, ensuring the integrity of the firefighting system. Additionally, steel pipes can be easily connected, making them convenient for installation and maintenance purposes. However, it is important to ensure that the steel pipes used for firefighting systems are properly treated to prevent corrosion and rusting, as this can compromise their effectiveness in an emergency situation. Regular inspections and maintenance should be conducted to ensure the reliability and functionality of the steel pipes within the firefighting system.

Q: Are steel pipes suitable for underground installations in areas with high moisture content?: Steel pipes are generally suitable for underground installations in areas with high moisture content. However, there are certain factors to consider when using steel pipes in such conditions. Corrosion is a major concern when steel pipes are exposed to moisture for extended periods. To mitigate this risk, it is important to use steel pipes that are specifically designed for underground installations and are coated with protective materials such as epoxy or polyethylene. These coatings act as a barrier between the steel and the surrounding moisture, preventing corrosion and extending the lifespan of the pipes. Additionally, proper installation techniques, including adequate pipe bedding and backfilling, should be followed to ensure the pipes are properly supported and protected from external forces. Regular inspection and maintenance are also recommended to identify any signs of corrosion or damage and address them promptly. Overall, with the right precautions and maintenance, steel pipes can be a suitable choice for underground installations in areas with high moisture content.

Q: What are the different types of steel pipe coatings for drinking water pipelines?: The different types of steel pipe coatings for drinking water pipelines include cement mortar lining, polyurethane lining, epoxy lining, and polyethylene wrapping. These coatings are applied to the interior and/or exterior of the pipes to prevent corrosion and ensure the safety and quality of the water being transported.

Q: How do you calculate the thermal expansion of steel pipes?: To calculate the thermal expansion of steel pipes, you need to use the coefficient of thermal expansion (CTE) for steel. The CTE is a measure of how much a material expands or contracts with changes in temperature. For steel, the average value of the CTE is typically around 12 x 10^-6 per degree Celsius (12 μm/m°C). To calculate the thermal expansion of a steel pipe, you need to know the initial length of the pipe (L0), the change in temperature (ΔT), and the coefficient of thermal expansion (CTE) for steel. The formula to calculate the thermal expansion is as follows: ΔL = L0 * CTE * ΔT Where: ΔL is the change in length of the steel pipe L0 is the initial length of the steel pipe CTE is the coefficient of thermal expansion for steel ΔT is the change in temperature For example, let's say you have a steel pipe with an initial length of 2 meters (L0), and the temperature increases by 50 degrees Celsius (ΔT). The CTE for steel is 12 x 10^-6 per degree Celsius. ΔL = 2m * 12 x 10^-6/°C * 50°C ΔL = 0.00024m/m°C * 50°C ΔL = 0.012m Therefore, the steel pipe would expand by 0.012 meters or 12 millimeters when the temperature increases by 50 degrees Celsius. It's important to note that this calculation assumes a linear expansion, which is valid for small changes in temperature. However, for larger temperature differences or more complex pipe systems, a more detailed analysis may be required to account for factors such as the pipe's material properties, geometry, and thermal boundary conditions.

Q: How are steel pipes used in the construction of underground utilities?: Steel pipes are commonly used in the construction of underground utilities as they are highly durable and can withstand the pressure and weight of the surrounding soil. They are primarily used for various applications such as transporting water, natural gas, and sewage, as well as for electrical conduit systems. Additionally, steel pipes are resistant to corrosion, which makes them ideal for long-term underground installations.

Q: What is the typical diameter range of steel pipes?: The typical diameter range of steel pipes can vary widely, but it commonly falls between 0.5 inches to 48 inches.

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