1/2“ HOT-DIP GALVANIZED PIPE FOR FLUID TRANSPORTATION

1/2“ HOT-DIP GALVANIZED PIPE FOR FLUID TRANSPORTATION System 1

1/2“ HOT-DIP GALVANIZED PIPE FOR FLUID TRANSPORTATION System 2

1/2“ HOT-DIP GALVANIZED PIPE FOR FLUID TRANSPORTATION System 3

1/2“ HOT-DIP GALVANIZED PIPE FOR FLUID TRANSPORTATION

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 10 m.t.

Supply Capability:: 100000 m.t./month

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Specifications

HOT-DIP GALVANIZED PIPE FOR FLUID TRANSPORTATION
1.OD:33.4-114.3mm
2.WT:2.0-9.0mm
3.Zinc:200~600g/m2
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HOT-DIP GALVANIZED PIPE FOR FLUID TRANSPORTATION

HOT-DIP GALVANIZED PIPE FOR FLUID TRANSPORTATION
1. Material	Steel Grade		Q195, Q235, Q345 etc.
	Material Type		Available in cold rolled and hot rolled
2. Size	W.T		1.0mm-12mm
	Diameter		20mm~273mm
	Length		5.8m-14m
3. Zinc Coating			200~600g/m2, could be thicker or thinner if you need
4. Certification			BV, IAF, SGS,COC, ISO etc.
5. Welding Technology			Longitudinal ERW
6. Application			Urban construction, machine structure, agriculture equipment, water and gas pipes etc.
7. Packing			Packing in bundle with steel strips; with seaworthy package at the end; could be done with your requirement.
8. Delivery Time			Usually within 10-30 days after receipt of deposit, ASAP
9. Trade Terms			FOB, CFR, CIF etc.
10. Payment Terms			T/T, L/C etc.
11. Loading Port			Xingang , Tianjin
12. Original Place			Tianjin, China
13. Company Information		Name	Reliance Metal Resource Co., Ltd
		Type	Manufacture and trading company
		Supply Ability	360,000 tons per year

Galvanized Round Steel Pipe's Materials

Elements Material	Chemical Compsition%					Mechanical Property
Elements Material	C%	Mn%	S%	P%	Si%	Yield Point (Mpa)	Tensile Strength(Mpa)	Elongation (%)
Q195	0.06-0.12	0.25-0.50	<0.050< span="">	<0.045< span="">	<0.030< span="">	>195	315-430	32-33
Q215	0.09-0.15	0.25-0.55	<0.05< span="">	<0.045< span="">	<0.030< span="">	>215	335-450	26-31
Q235	0.12-0.20	0.30-0.70	<0.045< span="">	<0.045< span="">	<0.030< span="">	>235	375-500	24-26
Q345	<0.20< span="">	1.0-1.6	<0.040< span="">	<0.040< span="">	<0.55< span="">	>345	470-630	21-22

Q: What are the different methods of pressure testing steel pipes?: There are several methods of pressure testing steel pipes, including hydrostatic testing, pneumatic testing, and ultrasonic testing. Hydrostatic testing involves filling the pipe with water and applying pressure to check for leaks or weaknesses. Pneumatic testing uses compressed air or gas to pressurize the pipe and detect any leaks or failures. Ultrasonic testing utilizes high-frequency sound waves to inspect the pipe's integrity by detecting any flaws or defects.

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: How are steel pipes installed underground?: Steel pipes are installed underground through a process called trenching, where a trench is dug in the ground according to the desired pipe route. The trench is then prepared by removing any hindrances and ensuring a level base. The steel pipes are laid into the trench, with proper alignment and connections between sections. Once in place, the trench is backfilled with soil, compacted, and any necessary restoration work is done on the surface.

Q: How do you determine the maximum allowable stress for steel pipes?: To determine the maximum allowable stress for steel pipes, several factors need to be considered. These factors include the material properties of the steel, such as yield strength and ultimate tensile strength, as well as the intended use and operating conditions of the pipes. Standards and codes such as ASME B31.3 or API 5L provide guidelines and formulas to calculate the maximum allowable stress based on these factors. Additionally, industry experts and engineers use various testing methods and simulations to ensure the safety and integrity of steel pipes under different loads and environments.

Q: What are the dimensions of a standard steel pipe?: The dimensions of a standard steel pipe can vary depending on its intended use, but common dimensions include a nominal size (such as 1/2 inch, 1 inch, 2 inches, etc.) and a schedule number indicating its wall thickness (such as Schedule 40 or Schedule 80). The outside diameter of the pipe can range from small sizes of less than half an inch to large sizes of several feet. The length of a standard steel pipe is typically 21 feet, although shorter lengths are also available.

Q: How are steel pipes used in the oil and gas pipeline transportation?: Steel pipes are widely used in the oil and gas industry for pipeline transportation due to their durability, strength, and resistance to corrosion. These pipes are specifically designed to withstand high pressure and transport various types of fluids, including crude oil, natural gas, and refined petroleum products. In oil and gas pipeline transportation, steel pipes are primarily used for three main purposes: gathering, transmission, and distribution. Gathering pipelines are responsible for collecting oil and gas from the production wells and transporting them to processing facilities. Steel pipes are used in these pipelines due to their ability to withstand the harsh conditions of the extraction sites and effectively transport the fluids over long distances. Transmission pipelines are used to transport oil and gas over vast distances, sometimes spanning across countries or continents. Steel pipes are ideal for this purpose as they can handle high pressure, ensuring the efficient flow of fluids over long distances. These pipes are often buried underground or submerged in water to protect them from external elements and minimize the risk of damage. Distribution pipelines are responsible for delivering oil and gas to end-users, such as homes, businesses, and industrial facilities. Steel pipes are commonly used in these pipelines as they can handle the varying demand and pressure requirements of different consumers. These pipes are often smaller in diameter compared to transmission pipelines but still provide reliable and safe transportation of oil and gas to their final destinations. In addition to their strength and durability, steel pipes used in oil and gas pipeline transportation are also coated or lined with various materials to enhance their resistance to corrosion and minimize the risk of leaks. These protective coatings and linings ensure the longevity of the pipes and maintain the integrity of the transported fluids. Overall, steel pipes play a crucial role in the oil and gas industry by providing a reliable and efficient means of transporting oil and gas from production sites to processing facilities and ultimately to end-users. Their durability, strength, and resistance to corrosion make them an ideal choice for pipeline transportation in this industry.

Q: Can steel pipes be used for pharmaceutical manufacturing?: Yes, steel pipes can be used for pharmaceutical manufacturing. Steel pipes are commonly used in various industries, including pharmaceutical manufacturing, due to their durability, strength, and resistance to corrosion. In pharmaceutical manufacturing, steel pipes are primarily used for fluid transportation, such as the transfer of chemicals, solvents, and other raw materials. They are also used for the distribution of process water, steam, and other utilities. Stainless steel pipes are particularly preferred in pharmaceutical manufacturing as they are highly resistant to corrosion and can withstand high temperatures and pressures. Moreover, stainless steel pipes have smooth surfaces, which prevent the accumulation of particles and facilitate easy cleaning and sterilization, essential requirements in pharmaceutical production. Overall, steel pipes are a reliable and suitable option for pharmaceutical manufacturing due to their robustness, resistance to corrosion, and ability to meet the stringent cleanliness and hygiene standards of the industry.

Q: How are steel pipes coated to prevent external corrosion?: Steel pipes are commonly coated to prevent external corrosion through various methods such as galvanization, epoxy coating, or polyethylene wrapping. These coatings act as barriers between the steel surface and the external environment, protecting the pipes from moisture, chemicals, and other corrosive elements.

Q: What are the different grades of steel used for manufacturing pipes?: The different grades of steel used for manufacturing pipes vary depending on their intended applications. Some common grades include carbon steel, stainless steel, and alloy steel. Carbon steel is commonly used for general-purpose piping due to its affordability and strength. Stainless steel is preferred for corrosive environments or high-temperature applications due to its resistance to corrosion. Alloy steel, on the other hand, offers improved strength and durability and is often used for specialized applications such as oil and gas pipelines.

Q: What does carbon seamless steel pipe mean? What is the difference between a seamless 20# and an ordinary one? What is it used in detail?: In general, steel is divided into two groups according to their chemical composition: carbon steel and alloy steel;(1): carbon steel low carbon steel (C = 0.25%); carbon steel (0.25% < C < 0.60%); high carbon steel (C = 0.60%)(2): alloy steel, low alloy steel (alloy is less than or equal to 5%); in steel (5% < < 10% alloy; high alloy steel (alloy) = 10%)Carbon seamless steel tubes are mostly pipes for mechanical engineering structures and pipes for conveying fluids.

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