Construction Circle Steel Pipe Q235 Grade

Construction Circle Steel Pipe Q235 Grade

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Loading Port:: Tianjin

Payment Terms:: TT or LC

Min Order Qty:: 300 m.t.

Supply Capability:: 1000 m.t./month

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Construction Circle Steel Pipe Q235 Grade

Description for Construction Pipe :

Type	Galvanized pipe
Steel Grade	Q345,Q195,215,Q235,
Steel Grade
Size	DIA 13-25.4mm, 18-25.4mm,25.4-34mm,34-50.8mm,50.8-79.2mm
Thickness	0.5-1.5mm,1.5-2.0mm,0.7-2.0mm,0.8-3.0mm,1.0-3.0mm
Application	Building/project construction
Packing	5.5mm-10mm:packing In coil. 10mm-32mm:in bundle.
MOQ	300tons ( trial order 100tons acceptable ).
Capacity	15000tons /month.
Delivery Time	15days after the order confirmation .
Payment	T/T , West Union , Cash , L/C.
Trade Terms	FOB, CFR, CIF ,EXW
Trans term	FIO , FILO , FLT

Datas Chart for Galvanized Pipe :

Content	C%	Mn%	Si%	P%	S%	V%	Ceq%
HRB335	0.17-0.25	1.00-1.60	0.40-0.80	≤0.045	≤0.045		≤0.52
HRB400	0.20-0.25	1.30-1.60	0.40-0.80	≤0.035	≤0.035	0.05-0.08	≤0.54
HRB500	0.25	1.6	0.80	≤0.045	≤0.045		≤0.55
HRB500E	0.20-0.24	1.20-1.50	0.40-0.65	≤0.045	≤0.045	0.050-0.120	≤0.55

Main Structure of Galvanized Steel Circle Pipe

l Mechanics Performance

Grade	Technical data of the original chemical composition(%)
	C	Mn	Si		S	P	Ceq
HRB500	≤0.25	≤1.60	≤0.80		≤0.045	≤0.045	≤ 0.55
	Mechanical Characterics
	Yield Strength (N/cm2)			Tensile Strength (N/cm2)		Elongation (%)
	≥500			≥630		≥14

FAQ:

Why should you choose us:

Stable quality ----continous casting hot rolled production techenic, strictly quality control system.
Lower price -------Not the cheapest but the lowest price at the same quality .
Good service -----Satisfactory service within 24hours.
Delivery time ------15-25days for the mass production .
Discount---------------discount base on monthly large quantity purchase in long term.

Picture:

Construction Circle Steel Pipe Q235 Grade

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Q:Can steel pipes be used for underground oil and gas pipelines?: Yes, steel pipes are commonly used for underground oil and gas pipelines due to their durability, strength, and resistance to corrosion.

Q:How to identify stainless steel pipe and steel pipe?: The welded pipe is rolled into the steel tubular to sew or spiral seam welded in the manufacturing method, and is divided into low pressure fluid delivery with welded steel pipe, spiral welded steel pipe, welded steel pipe, welded pipe roll etc.. Seamless steel pipe can be used in various industries, such as liquid, pneumatic, pipeline and gas pipeline. Welding pipes can be used in water pipelines, gas pipelines, heating pipes, electrical appliances, pipelines and so on.

Q:How are steel pipes used in petrochemical plants?: Steel pipes are widely used in petrochemical plants for various applications including transportation of fluids such as oil, gas, and chemicals. They are used to connect different components of the plant, such as pumps, tanks, and vessels, allowing for the efficient and safe movement of these substances. Steel pipes in petrochemical plants are designed to withstand high pressure and extreme temperatures, ensuring the reliability and durability of the entire system.

Q:How are steel pipes used in seaport infrastructure?: Steel pipes are commonly used in seaport infrastructure for various purposes such as constructing piers, wharfs, and docks. They are used for the foundation of these structures, providing stability and strength. Steel pipes are also used in the construction of underwater pipelines for transporting oil, gas, and other fluids. Additionally, they are utilized in the fabrication of fences, barriers, and railings to ensure safety and security within the seaport area.

Q:How are steel pipes used in the manufacturing of agricultural machinery and equipment?: Steel pipes are widely used in the manufacturing of agricultural machinery and equipment due to their various beneficial properties. These pipes are utilized in several ways to enhance the efficiency and durability of agricultural machinery. One of the primary uses of steel pipes in agricultural machinery is for the construction of frames and chassis. The high strength and structural integrity of steel pipes make them ideal for supporting heavy loads and withstanding the rigorous conditions often encountered in agricultural operations. Whether it is a tractor, combine harvester, or tillage equipment, steel pipe frames provide the necessary stability and sturdiness required for these machines to perform efficiently in the field. Steel pipes are also commonly used in the hydraulic systems of agricultural machinery. These pipes serve as conduits for hydraulic fluids, allowing for the smooth and reliable operation of various components such as hydraulic cylinders, pumps, and motors. Due to their resistance to corrosion and high pressure, steel pipes ensure the longevity of hydraulic systems, reducing maintenance and repair costs for agricultural machinery. Furthermore, steel pipes find applications in the exhaust systems of agricultural equipment. The exhaust gases produced by engines need to be safely and efficiently expelled to minimize environmental impact and maintain engine performance. Steel pipes with appropriate thickness and thermal resistance are used to construct exhaust systems, allowing for the effective removal of exhaust gases and reducing noise pollution. In addition, steel pipes are utilized in the manufacturing of irrigation systems and equipment used in agriculture. Whether it is for transporting water from a source to the fields or distributing water to crops through sprinklers or drip irrigation, steel pipes offer the necessary durability and resistance to pressure, ensuring efficient water delivery and minimizing leaks. Overall, the use of steel pipes in the manufacturing of agricultural machinery and equipment is crucial for enhancing their performance, durability, and efficiency. The strength, structural integrity, resistance to corrosion, and high pressure capabilities of steel pipes make them indispensable components in various applications within the agricultural sector.

Q:Welded and seamless steel pipe how to distinguish?: Different price:Because the production process of seamless steel tube is more complex, so the price is more expensive than a seamed steel pipe, and pipe joints mainly adopts steel (steel) two welded, fixed price, the most widely used are.

Q:How are steel pipes used in the construction of sewer systems?: Steel pipes are commonly used in the construction of sewer systems due to their durability and strength. They are used to transport wastewater and sewage from buildings to treatment plants or disposal sites. Steel pipes are resistant to corrosion and can withstand high pressure, making them ideal for underground applications. Additionally, their smooth interior prevents clogs and blockages, ensuring efficient flow and preventing damage to the sewer system.

Q:What are the different types of pipe coatings used for corrosion protection?: For corrosion protection, various pipe coatings are utilized to safeguard the exterior surface of pipes, ensuring their durability and integrity. Some commonly employed coatings for this purpose are as follows: 1. Fusion-Bonded Epoxy (FBE) Coatings: Renowned for their remarkable adhesion and resistance to chemicals, moisture, and abrasion, FBE coatings are extensively used. These coatings are applied by heating the pipe and subsequently spraying it with epoxy powder, which solidifies upon cooling, forming a protective layer. 2. Polyethylene (PE) Coatings: PE coatings are highly flexible and exhibit excellent resistance against impact and chemicals. Common application methods for these coatings include extrusion and wrapping, providing exceptional protection against water, soil, and other corrosive substances. 3. Polyurethane (PU) Coatings: PU coatings possess commendable resistance to chemicals, moisture, and mechanical damage. Spraying or brush coating methods are typically employed to apply these coatings, which find frequent usage in underground pipelines. 4. Coal-Tar Enamel Coatings: Coal-tar enamel coatings are suitable for safeguarding pipes exposed to highly corrosive environments like marine conditions or underground settings. Application techniques like hot or cold wrapping are commonly employed, granting exceptional resistance against water, acids, and alkalis. 5. Metallic Coatings: Metallic coatings, including zinc, aluminum, or zinc-aluminum alloys, are frequently adopted as sacrificial coatings to protect the underlying steel pipes. These coatings corrode preferentially, sacrificing themselves to shield the pipe from corrosion. 6. Asphalt Coatings: Asphalt coatings serve as robust barriers against moisture, chemicals, and soil. Typically applied using hot or cold wrapping methods, they are commonly utilized for underground pipelines. To determine the appropriate pipe coating for corrosion protection, it is crucial to consider factors such as the specific environment, temperature, and expected lifespan of the pipes.

Q:What is the difference between API 5L and ASTM A106 steel pipes?: API 5L and ASTM A106 steel pipes are both widely used in the oil and gas industry, but they have some key differences. API 5L is a specification for seamless and welded steel pipes used for pipeline transportation systems in the petroleum and natural gas industries. It covers various grades of carbon and alloy steel pipes, with different strength levels and impact requirements. API 5L pipes are designed for conveying fluids, such as oil, gas, and water, over long distances. On the other hand, ASTM A106 is a specification for seamless carbon steel pipes used for high-temperature service. It covers seamless pipes for pressure and mechanical applications, including transportation of fluids and gases in industries like refineries, power plants, and boilers. While both API 5L and ASTM A106 pipes are used in similar applications, the main difference lies in their intended use and the specific requirements they must meet. API 5L pipes are primarily used for pipeline transportation systems, whereas ASTM A106 pipes are more focused on high-temperature service applications. Additionally, the manufacturing processes and testing requirements for both specifications may vary.

Q:What are the different types of steel pipe coatings for underground gas pipelines?: There are several different types of steel pipe coatings used for underground gas pipelines. These include fusion bonded epoxy (FBE) coatings, three-layer polyethylene (3LPE) coatings, polyurethane (PU) coatings, and coal tar enamel (CTE) coatings. Each of these coatings provides different levels of corrosion protection and suitability for specific environmental conditions.

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