38'' CARBON STEEL LSAW WELDED PIPE API/ASTM/JIS/DIN

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 5 m.t

Supply Capability:: 300 m.t/month

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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.:20-273mm

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: φ168mm-3020mm

5,Length: 5m-12m or as your 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< 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

Packaging & Delivery

Packaging Detail:	Normal exporting packing,in container or bulk vessel or as per clients' request
Delivery Detail:	2 months after confimed contract

Specifications

Large Diameter API 5L X70 PSL2 LSAW Steel Pipe
Grade: X42, X46, X50, X52, X60, B, C
OD: 1.5"-28"
WT: SCH10-SCH160
Brand:TPCO

Large Diameter API 5L X70 PSL2 LSAW Steel Pipe

Specifications:

u Standard: API 5L

u Grade: B, C, X42, X46, X50, X52, X56, X60, X65, X70, X80

u OD: 1.5"-28"

u WT: SCH10-SCH160

u Length: 5-12m

u Ends Finish: plain end, bevel end, grooved end

u Surface Treatment: bare, black varnished, oiled finish, red color, anti-corrosion, 3PE, FBE or epoxy coating

u Technique: hot rolled or cold drawn

u Application: api 5l steel pipe for conveying oil, water, gas

u Invoicing: based on theoretical weight or actual weight

u Payment Terms: L/C at sight, T/T or Western Union

u Trade Terms: FOB, CFR, CIF

u Certification: ABS manufacturing assessment, ABS design assessment, API 5CT, API 5L, DNV manufacturer certificate, ISO9001 quality management system certificate, ISO14001 environment management system certificate, GB/T28001 occupational health and safety management system certificate, A1 class manufacturing license of special equipment certificate, CCS, GL, LR, SGS, TüV, PDE

Q:What is a flange and how is it used in steel pipes?: A flange is a flat, circular fitting that is attached to the end of a steel pipe. It is used to connect two pipes or fittings together, allowing for easy assembly and disassembly of the pipeline system. The flange provides a secure and leak-proof connection by bolting the flange to the adjacent flanges or equipment. It also allows for the attachment of valves, pumps, or other components to the pipeline. Overall, flanges play a crucial role in ensuring the integrity and functionality of steel pipes in various industrial applications.

Q:Can steel pipes be used for underground compressed air pipelines?: Indeed, underground compressed air pipelines can utilize steel pipes. The strength and durability of steel pipes make them a popular choice for subterranean pipelines. They possess the capacity to endure high pressure and withstand corrosion and other environmental elements. Moreover, steel pipes are renowned for their extended lifespan, rendering them a dependable option for compressed air pipelines. Nevertheless, it is crucial to guarantee the adequate coating and protection of the steel pipes to avert any potential corrosion concerns. Furthermore, the proper installation and maintenance of these pipelines are vital to ensure their efficiency and safety.

Q:How are steel pipes used in the manufacturing of food processing machinery and equipment?: Steel pipes are an essential component in the manufacturing of food processing machinery and equipment due to their numerous advantageous properties. These pipes are widely used in the food industry for their durability, corrosion resistance, and ability to withstand high temperatures and pressures. One of the primary applications of steel pipes in food processing machinery is for the transportation of various fluids and gases. These pipes are used to carry water, steam, and other liquids, as well as air and gases, throughout the processing plant. Steel pipes provide a reliable and hygienic means of transferring these substances, ensuring that the quality and safety of the food products are maintained. Moreover, steel pipes are also utilized in the design and construction of food processing equipment such as mixers, blenders, conveyors, and canning machines. These machines often require the use of pipes to facilitate the movement of ingredients, processing fluids, and cleaning agents. Steel pipes are an ideal choice for these applications due to their high strength, which allows them to handle the heavy loads and pressures associated with food processing operations. Another crucial aspect of steel pipes in food processing machinery is their resistance to corrosion. Food processing involves the use of various acidic and alkaline substances, as well as hot water and steam, which can cause corrosion in other materials. Steel pipes, particularly those made from stainless steel, are highly resistant to corrosion, ensuring that the machinery remains in optimal condition and prolonging its lifespan. Furthermore, the smooth internal surface of steel pipes allows for efficient and hygienic cleaning, as it minimizes the accumulation of food particles and contaminants. This is of utmost importance in the food industry, where maintaining high levels of cleanliness is essential to prevent the growth of bacteria and ensure food safety. In summary, steel pipes play a crucial role in the manufacturing of food processing machinery and equipment. Their durability, corrosion resistance, ability to handle high temperatures and pressures, and hygienic characteristics make them an ideal choice for the transportation of fluids and gases, as well as for the construction of various food processing equipment.

Q:Can steel pipes be used for brewery installations?: Indeed, brewery installations can utilize steel pipes. Within breweries, steel pipes are frequently employed for a multitude of purposes, including fluid transfer, equipment interconnection, and plumbing system establishment. Steel pipes boast exceptional durability, strength, and resistance to corrosion, rendering them apt for handling the challenging conditions and high-pressure environments typically encountered in brewery installations. Moreover, the ability to weld steel pipes together enables seamless connections, guaranteeing a dependable and leakage-free operation. Nevertheless, it remains crucial to ensure that the steel pipes employed in brewery installations comply with the requisite standards and regulations, thereby safeguarding the safety and quality of the beer production process.

Q:How are steel pipes protected against internal scaling?: Steel pipes are protected against internal scaling through various methods such as chemical treatments, use of corrosion inhibitors, and regular maintenance and cleaning procedures. These measures help to prevent the formation of scale, which can reduce the pipe's efficiency and lifespan.

Q:How are steel pipes used in the manufacturing of power plants?: Steel pipes are extensively used in the manufacturing of power plants for various applications such as transporting water, steam, and other fluids, as well as for structural purposes. They are commonly used for the construction of boiler tubes, heat exchangers, condensers, and steam distribution systems. Additionally, steel pipes are essential for conveying fuel gases and air in power plants, ensuring efficient operation and safety.

Q:How do you calculate the pipe thermal expansion for steel pipes?: To calculate the pipe thermal expansion for steel pipes, you need to consider the coefficient of thermal expansion (CTE) of the material, the temperature change, and the length of the pipe. The CTE is a measure of how much a material expands or contracts with temperature changes. For steel, the average CTE is typically around 12 x 10^-6 per degree Fahrenheit (or 6.5 x 10^-6 per degree Celsius). However, this value can vary depending on the specific grade of steel. Next, determine the temperature change that the pipe will experience. This can be the difference between the operating temperature and the ambient temperature, or the change in temperature due to the fluid or gas flowing through the pipe. Finally, calculate the thermal expansion using the formula: Thermal Expansion = CTE x Length x Temperature Change Where: - CTE is the coefficient of thermal expansion - Length is the length of the pipe - Temperature Change is the difference in temperature For example, if you have a steel pipe with a length of 10 meters (32.8 feet) and a temperature change of 100 degrees Celsius (180 degrees Fahrenheit), and assuming a CTE of 12 x 10^-6 per degree Celsius, the thermal expansion would be: Thermal Expansion = 12 x 10^-6 x 10 x 100 = 0.012 meters (or 12 millimeters) This means the pipe would expand by 12 millimeters due to the temperature change. It's important to note that this calculation provides an estimate of the thermal expansion, but other factors such as pipe supports, restraints, and the specific application should also be considered to ensure the proper design and installation of the steel pipe system.

Q:What are the different methods of pipe welding for steel pipes?: Steel pipes can be welded using various methods, each with its own advantages and applications. Here are some commonly used techniques: 1. Stick welding, also called Shielded Metal Arc Welding (SMAW), involves manually melting a consumable electrode coated in flux. The flux creates a protective shield around the weld pool. SMAW is versatile and can be used in different positions, making it suitable for both field and workshop applications. 2. Gas Metal Arc Welding (GMAW), also known as MIG welding, uses a continuous wire electrode fed through a welding gun. The gun supplies a shielding gas, such as argon or a mixture of argon and carbon dioxide, to protect the weld pool from contamination. GMAW is known for its high welding speed and is commonly used in industrial settings. 3. Flux-Cored Arc Welding (FCAW) is similar to GMAW, but the wire electrode is filled with flux instead of relying on an external gas. The flux creates a protective shield around the weld pool, eliminating the need for a separate gas supply. FCAW is often used in outdoor and windy conditions for better protection against contamination. 4. Gas Tungsten Arc Welding (GTAW), also called TIG welding, uses a non-consumable tungsten electrode to create the weld. A separate shielding gas, typically argon, is used to protect the weld pool. GTAW produces high-quality welds with excellent control, making it suitable for precision applications. 5. Submerged Arc Welding (SAW) is an automated process that uses a continuously fed wire electrode and a granular flux 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 methods available for welding steel pipes. The choice of method depends on factors such as the application, material thickness, desired weld quality, and available equipment. Selecting the appropriate method is crucial to ensure strong and reliable welds in steel pipe applications.

Q:What are the main types of steel pipe ah? How to judge which kind of steel pipe performance is better?: Sort by connectionThe connection way of steel pipe can be divided into: light pipe (pipe end without thread) and wire tube (Guan Duan with thread).The tube can be divided into ordinary tube and end tube.Thickening of the tube can also be divided into: extra thick (with external thread), internal thickening (with internal thread) and inside and outside thickening (with internal and external thread) and other vehicle wire tube.The wire tube can also be divided into ordinary cylinder or taper thread and special thread.In addition, according to user needs, wire tubes are generally equipped with pipe delivery.Plating characteristicsAccording to the characteristics of surface coated steel pipe can be divided into: Clarinet (not coated) and coating tube.The coating tubes include galvanized pipes, aluminium plated tubes, chrome plated pipes, aluminized tubes and other alloy layers.The coating tube has an outer coating tube, an inner coating tube and an inner and outer coating pipe. The commonly used coatings are plastics, epoxy resins, coal tar, epoxy resins, and various glass based anticorrosive coatings. Galvanized pipe is divided into KBG pipe, JDG pipe, threaded pipe, etc.

Q:How do steel pipes compare to other pipe materials like PVC or copper?: Steel pipes have several advantages over other pipe materials like PVC or copper. Firstly, steel pipes are incredibly strong and durable, making them suitable for high-pressure applications and long-term use. They have a higher resistance to cracking or breaking, which is especially beneficial in demanding environments. Secondly, steel pipes have excellent heat resistance, making them ideal for transporting hot fluids. On the other hand, PVC pipes are more lightweight, cost-effective, and easy to install, making them suitable for non-pressure applications. Copper pipes are known for their corrosion resistance and ability to handle high temperatures, but they are typically more expensive. Overall, the choice between steel, PVC, or copper pipes depends on the specific requirements of the application, considering factors like pressure, temperature, cost, and ease of installation.

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