seamless steel pipe external coating

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Specifications

water pipeline inner-layer tape
1 Butyl rubber as adhesive
2. SGS test report and DVGW certificate
3. corrosion protection

water pipeline inner-layer tape

State-of-the-Art Pipeline Protection for All Climates & Environments

System description:

WATER PIPELINE Inner -layer tape also be called pipe wrap anti-corrosion tape, polyethylene wrap tape.

water pipeline Inner-layer tapeT100 is engineered to assure a high bond to the primed pipe surface with excellent conformability characteristics, aggressive adhesive for corrosion protection and repair of main line coatings.

Inner-layer tapeT100 series is cold applied tape coating system for corrosion protection of Oil, Gas, Petrochemical, and Waste Waterburied pipeline, pipe can be buried, also can be underground ,overhead ,onshore and offshore .

Structure of water pipeline inner wrap tape
The specification of the tape consists of two layers, adhesive layer and film backing
Adhesive: butyl rubber
Film backing: Special blend of stabilized polyethylene

Features & Benefits

Provides a permanent bond to the primed steel pipes surface and provides protection against chemical electrolytic corrosion for underground pipelines.
long term corrosion protection
Worldwide reference lists. Established in-ground history
High chemical resistance under service temperature.
Outstanding electric property and permanent adhesion.
Cold applied, No release liner. Makes installation fast and easy.
Complies with EN-DIN 30672 and AWWAC-214 international standards and also ASTM standards.
Be used for water pipeline corrosion protection

System Properties

Type	T138	T 150		T165	T180	T 250	T265	T280
Thickness	15mil 0.38mm	20mil 0.508mm		25mil 0.635mm	30mil 0.762mm	20mil 0.508mm	25mil 0.635mm	30mil 0.762mm
Backing	9mil 0.229mm	9mil 0.241mm		10mil 0.25mm	10mil 0.25mm	15mil 0.38mm	20mil 0.508mm	25mil 0635mm
Adhesive	6mil 0.152mm	11mil 0.279mm		15mil 0.381mm	20mil 0.508mm	5mil 0.127mm	5mil 0.127mm	5mil 0.127mm
When used for ductile iron pipes inner layer 980-20 or 980-25 and outer layer 955-20 or 955-25 are recommended.
Elongation	³300%					³400%
Tensile Strength	55 N/cm					70 N/cm
Color	Black					White
Peel Adhesion to Primed Pipe			33 N/cm
Dielectric Strength			30 KV
Dielectric Breakdown			26 KV/mm
Cathodic Disbandment			0.24 in radius 6.4 mm
Water Vapor Transmission Rate			< 0.1%
Volume Resistivity			2.5 x 10¹⁵ ohm.cm
Impact resistance			5.5Nm
Penetration Resistance			<15%
Performance			AWWA C-209,ASTM D 1000,EN 12068

Order information

Length	100ft(30 M),200ft(60 M),400ft(120 M),800ft(240 M)
Width	2’’(50mm),4’’(100mm),6’’(150mm),17’(450mm),32’’(800mm)

Q:What is the purpose of galvanizing steel pipes?: The purpose of galvanizing steel pipes is to provide corrosion resistance and extend their lifespan.

Q:How are steel pipes used in the manufacturing of automobiles?: Due to their strength, durability, and versatility, steel pipes find widespread use in the manufacturing of automobiles. Throughout the automobile manufacturing process, various applications make use of steel pipes. One primary application of steel pipes in automobiles lies in constructing the vehicle's chassis and body. Structural components, such as steel pipes, provide the necessary strength and rigidity. With the ability to be bent, shaped, and welded, steel pipes prove to be an ideal choice for automotive purposes. Additionally, steel pipes play a crucial role in the exhaust system of automobiles. Responsible for guiding and redirecting exhaust gases away from the engine, steel pipes form the exhaust manifold. They also contribute to the exhaust pipes and mufflers. Steel's high temperature and corrosion resistance make it suitable for enduring the harsh conditions of the exhaust system. Moreover, steel pipes serve in the cooling system of automobiles. They facilitate the transportation of coolant from the engine to the radiator and back, effectively regulating the engine's temperature. Due to their ability to handle high pressure and temperature, as well as their resistance to corrosion and chemical damage, steel pipes remain the preferred choice for this application. Furthermore, steel pipes find usage in the fuel system of automobiles. They ensure a consistent and reliable supply of fuel by transporting it from the tank to the engine. Steel pipes are selected for this purpose because of their resistance to corrosion and their ability to withstand the high pressure and temperature associated with fuel transportation. In conclusion, steel pipes are indispensable in automobile manufacturing. They contribute significantly to the construction of the chassis and body, the exhaust system, the cooling system, and the fuel system. Thanks to their strength, durability, and versatility, steel pipes are the preferred choice for various automotive applications.

Q:How are steel pipes repaired if they develop leaks?: Steel pipes can be repaired if they develop leaks through various methods such as welding, clamping, or using epoxy compounds. The specific repair technique depends on the size and location of the leak as well as the type of pipe, and it is typically carried out by trained professionals with the necessary equipment and expertise.

Q:What are the different joining methods for steel pipes?: There are several different joining methods for steel pipes, including welding, threading, flanging, and mechanical coupling.

Q:How does galvanization protect steel pipes from corrosion?: Galvanization protects steel pipes from corrosion by creating a protective zinc layer on the surface of the steel. This zinc layer acts as a barrier, preventing moisture and oxygen from reaching the steel, thus inhibiting the formation of rust and corrosion.

Q:Seamless steel tube DN15 specification phi 18*3 what do you mean?: Seamless steel pipe DN15 specification phi 18*3 refers to 3 outer diameter of 18mm B type DN15 seamless steel tube.

Q:What are the different methods of pipe welding for steel pipes?: There are several different methods of pipe welding for steel pipes, each with its own unique advantages and applications. Here are some of the most common methods: 1. Shielded Metal Arc Welding (SMAW): Also known as stick welding, SMAW is a manual welding process that uses a consumable electrode coated in flux. The electrode is melted to create the weld, and the flux creates a protective shield around the weld pool. SMAW is versatile and can be used in various positions, making it suitable for both field and workshop applications. 2. Gas Metal Arc Welding (GMAW): Commonly known as MIG (Metal Inert Gas) welding, GMAW uses a continuous wire electrode that is fed through a welding gun. The welding gun also supplies a shielding gas, such as argon or a mixture of argon and carbon dioxide, to protect the weld pool from atmospheric contamination. GMAW is known for its high welding speed and is often used in industrial applications. 3. Flux-Cored Arc Welding (FCAW): Similar to GMAW, FCAW uses a continuous wire electrode, but the wire is filled with flux instead of relying on an external shielding gas. The flux in the wire produces a protective shield around the weld pool, eliminating the need for a separate gas supply. FCAW is commonly used in outdoor and windy conditions as it provides better protection against atmospheric contamination. 4. Gas Tungsten Arc Welding (GTAW): Also known as TIG (Tungsten Inert Gas) welding, GTAW uses a non-consumable tungsten electrode to create the weld. The weld pool is protected by a shielding gas, typically argon, which is supplied separately. GTAW produces high-quality welds with excellent control, making it suitable for critical applications where precision is crucial. 5. Submerged Arc Welding (SAW): SAW is an automated welding process that uses a continuously fed wire electrode and a granular flux that is poured over the weld joint. The arc is submerged beneath the flux, providing excellent protection against contamination. SAW is commonly used in heavy fabrication and pipeline industries due to its high deposition rates and deep penetration capabilities. These are just a few of the different methods of pipe welding for steel pipes. The choice of method depends on factors such as the application, material thickness, desired weld quality, and available equipment. It is important to select the appropriate welding method to ensure strong, durable, and reliable welds in steel pipe applications.

Q:How are steel pipes inspected for quality?: Steel pipes are inspected for quality through various methods such as visual inspection, non-destructive testing techniques like ultrasonic testing, magnetic particle inspection, and radiographic testing. These inspections help identify any defects, cracks, or imperfections in the pipes, ensuring they meet the required quality standards. Additionally, mechanical tests such as tensile strength and hardness tests may also be conducted to assess the structural integrity of the steel pipes.

Q:What are the common uses of stainless steel pipes?: Various industries widely use stainless steel pipes for numerous purposes. Some common applications of these pipes include: 1. Plumbing and Water Supply: Stainless steel pipes are popularly utilized in residential, commercial, and industrial plumbing systems due to their resistance against corrosion, durability, and capacity to handle high-pressure situations. They are also employed in water treatment plants and wastewater management systems. 2. Oil and Gas Industry: The oil and gas industry extensively relies on stainless steel pipes for the transportation of oil, gas, and other fluids. These pipes can endure high temperatures, pressure, and corrosive environments, making them ideal for this sector. 3. Food and Beverage Industry: The food and beverage industry frequently employs stainless steel pipes because of their hygienic properties and ability to resist corrosion. These pipes are commonly used for the transportation of liquids, gases, and food products in processing plants, breweries, wineries, dairies, and other food-related facilities. 4. Chemical and Petrochemical Industry: Stainless steel pipes play a critical role in the chemical and petrochemical industry, where they are utilized 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 utilized in construction and architecture for various purposes such as providing structural support, creating handrails, guardrails, and decorative elements. Their strength, durability, and aesthetic appeal make them a popular choice in contemporary architectural designs. 6. Automotive and Transportation: The automotive industry relies on stainless steel pipes for exhaust systems, fuel lines, and other components that require resistance to high temperatures and corrosion. These pipes are also used in the transportation of fluids and gases in ships, trains, and airplanes. 7. Pharmaceutical Industry: The pharmaceutical industry necessitates high-quality materials that adhere to stringent sanitary standards. Stainless steel pipes are commonly used in pharmaceutical manufacturing processes for transporting liquids, gases, and chemicals due to their cleanability, resistance to corrosion, and compatibility with pharmaceutical products. 8. Power Generation: Stainless steel pipes find applications in power plants, both conventional and renewable, for various purposes such as steam lines, condensers, and heat exchangers. These pipes are selected for their ability to withstand high temperatures, pressure, and corrosive environments. In conclusion, stainless steel pipes have a wide range of applications in various industries, including plumbing, oil and gas, food and beverage, chemical and petrochemical, construction, automotive, pharmaceutical, and power generation. Their resistance to corrosion, durability, and ability to handle high temperatures and pressure make them a versatile and reliable choice for numerous industrial applications.

Q:What is the electrical conductivity of steel pipes?: Due to its metallic nature, steel pipes possess a notable degree of electrical conductivity. The specific composition and properties of the steel employed can influence the electrical conductivity of these pipes. Typically, steel exhibits a conductivity range of 6.99 × 10^6 to 9.64 × 10^6 siemens per meter (S/m) at room temperature. Consequently, steel pipes are capable of effectively conducting electricity and finding application in diverse fields, including electrical transmission and grounding systems.

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