SSAW STEEL PIPE 219-3920MM ASTM/API/DIN System 1

SSAW STEEL PIPE 219-3920MM ASTM/API/DIN System 2

SSAW STEEL PIPE 219-3920MM ASTM/API/DIN

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Loading Port:: China Main Port

Payment Terms:: TT OR LC

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Packaging & Delivery

Packaging Detail:	standard export packing or as customer's requirement
Delivery Detail:	within 10 - 30 days

Specifications

Spiral Welded Steel Pipes and Tubes
1.Material:Q195-Q235
2.Length:1-12m
3.WT:1.0-14mm
4.O.D.:219-3920mm

Product Description:

1.Material : Q235,Q345,L245,L290,L360,L415,L450,L485,GrB,X42,46,X52,X56,X60,X65,X70,X80,X100

2,Standard: SY/T5037-2000,GB/T9711-2011,API Spec 5L PSL1/PSL2,ASTM A252\A53,ISO3183,DIN17172,EN10217,JIS G3457,AWWA C200,ASTM A139,ASTM A671,ASTM A672

3.Wall thickness: 3.0mm-30mm

4.Outer diameter: φ219mm-3920mm

5,Length: 5m-12m or as customer requirement

6,Corrosion protection standard: DIN30670,DIN30671, AWWAC210, AWWA C203, SY/T0413-2002,SY/T0414-2002

7,Application: Oil, gas, natural gas, water pipe, thermal electricity pipe, steel structure engineering, etc

Q195-Q345 Material Steel Pipe's Materials

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

Q: Can steel pipes be used for underground oil pipelines?: Yes, steel pipes can be used for underground oil pipelines. Steel pipes are commonly used in the construction of underground oil pipelines due to their strength, durability, and resistance to corrosion. They are able to withstand the high pressure and weight of the oil being transported, as well as any external forces such as soil movement or seismic activity. Additionally, steel pipes can be coated or lined with materials such as epoxy or polyethylene to further protect against corrosion and increase their lifespan. Overall, steel pipes are a reliable and widely used choice for underground oil pipelines.

Q: What are the common uses of stainless steel pipes?: Stainless steel pipes are widely used in various industries for a multitude of applications. Some of the common uses of stainless steel pipes include: 1. Plumbing and Water Supply: Stainless steel pipes are often used in residential, commercial, and industrial plumbing systems due to their corrosion resistance, durability, and ability to handle high-pressure applications. They are also used in water treatment plants and wastewater management systems. 2. Oil and Gas Industry: Stainless steel pipes are extensively used in the oil and gas industry for transporting oil, gas, and other fluids. They can withstand high temperatures, pressure, and corrosive environments, making them ideal for this industry. 3. Food and Beverage Industry: Stainless steel pipes are widely used in the food and beverage industry due to their hygienic properties and resistance to corrosion. They are commonly used for transporting liquids, gases, and food products in processing plants, breweries, wineries, dairies, and other food-related facilities. 4. Chemical and Petrochemical Industry: Stainless steel pipes are critical in the chemical and petrochemical industry, where they are used for transporting corrosive chemicals, acids, and other hazardous substances. The pipes' resistance to corrosion and high temperatures makes them suitable for these demanding applications. 5. Construction and Architecture: Stainless steel pipes are used in construction and architecture for various purposes such as structural support, handrails, guardrails, and decorative elements. Their strength, durability, and aesthetic appeal make them a popular choice in modern architectural designs. 6. Automotive and Transportation: Stainless steel pipes are used in the automotive industry for exhaust systems, fuel lines, and other components that require resistance to high temperatures and corrosion. They are also used in the transportation of fluids and gases in ships, trains, and airplanes. 7. Pharmaceutical Industry: The pharmaceutical industry requires high-quality materials that meet stringent sanitary standards. Stainless steel pipes are commonly used in pharmaceutical manufacturing processes for transporting liquids, gases, and chemicals due to their cleanability, corrosion resistance, and compatibility with pharmaceutical products. 8. Power Generation: Stainless steel pipes are used in power plants, both conventional and renewable, for various applications such as steam lines, condensers, and heat exchangers. They are chosen for their ability to withstand high temperatures, pressure, and corrosive environments. In summary, stainless steel pipes find applications in a wide range of industries including plumbing, oil and gas, food and beverage, chemical and petrochemical, construction, automotive, pharmaceutical, and power generation. Their corrosion resistance, durability, and ability to handle high temperatures and pressure make them a versatile and reliable choice for various industrial applications.

Q: Are steel pipes suitable for underground industrial waste disposal?: Yes, steel pipes are generally suitable for underground industrial waste disposal. Steel pipes are durable, resistant to corrosion, and can withstand high pressure, making them a reliable choice for transporting and disposing of industrial waste underground. Additionally, steel pipes have a long lifespan and can be easily maintained, reducing the risk of leaks or contamination.

Q: How are steel pipes coated to prevent corrosion?: Steel pipes are coated to prevent corrosion using various methods and materials. One common method is applying a protective layer of paint or epoxy on the surface of the pipe. This coating acts as a barrier between the steel and the external environment, preventing moisture and corrosive substances from coming into direct contact with the metal. Another technique involves using a process called galvanization, where the steel pipes are coated with a layer of zinc. Zinc is highly resistant to corrosion and acts as a sacrificial anode, meaning it will corrode in place of the steel if any damage occurs to the coating. This sacrificial protection ensures that the steel remains intact and corrosion-free. Additionally, steel pipes can be coated with polyethylene or polypropylene materials through a process called fusion bonding. In this method, the plastic material is melted onto the steel surface, creating a strong bond that provides excellent resistance against corrosion. This type of coating is commonly used in offshore and underground pipelines. Furthermore, another technique for preventing corrosion is the application of a layer of corrosion-resistant alloy onto the steel pipe. This alloy is typically a combination of metals such as nickel, chromium, and molybdenum, which provide superior protection against corrosion in harsh environments. Overall, the choice of coating method depends on various factors such as the operating conditions, the type of corrosive substances present, 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: Can steel pipes be used for steam applications?: Yes, steel pipes can be used for steam applications. Steel pipes are known for their high strength and durability, making them suitable for carrying steam at high temperatures and pressures. They are resistant to corrosion and can withstand the harsh conditions of steam systems, making them a popular choice in various industries such as power generation, oil and gas, and chemical processing.

Q: Can steel pipes be painted or coated?: Yes, steel pipes can be painted or coated. Painting or coating steel pipes helps to protect them from corrosion, rust, and other environmental factors. It also enhances their aesthetic appearance and can be used to indicate the type of pipe or its function.

Q: What is the hardness of steel pipes?: The hardness of steel pipes can vary depending on the specific grade and manufacturing process. Generally, steel pipes are made from alloys that provide a combination of strength and toughness. To determine the hardness of steel pipes, various methods such as Rockwell or Brinell hardness tests can be conducted. These tests measure the resistance of the steel to indentation or penetration by a standardized indenter. The hardness of steel pipes is typically expressed as a numerical value on a scale, such as the Rockwell hardness scale (e.g., HRC or HRB) or the Brinell hardness scale (e.g., HB). The hardness of steel pipes is important as it indicates their ability to withstand physical stresses, such as pressure, impact, or wear, in various applications such as construction, oil and gas transportation, and manufacturing.

Q: What is the difference between steel pipes and fiberglass pipes?: The main difference between steel pipes and fiberglass pipes lies in their composition and properties. Steel pipes are made of metal and are known for their strength, durability, and resistance to high temperatures and pressure. They are commonly used in industrial settings and for transporting liquids and gases. On the other hand, fiberglass pipes are made of glass fibers embedded in a resin matrix, providing them with excellent corrosion resistance, lightweight properties, and insulation capabilities. Fiberglass pipes are often used in applications where corrosion is a concern, such as in chemical processing plants or wastewater treatment facilities.

Q: How do you prevent steel pipes from freezing?: One way to prevent steel pipes from freezing is to insulate them with pipe insulation or heat tape. Additionally, keeping the area around the pipes well-heated and ensuring proper ventilation can help prevent freezing.

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