20'' 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: Are steel tubes and round steel in weight or length when purchased?: It's priced by weight. The cutting process should size to determine the length (otherwise - please specify the weight of the material), the material ration to calculate weight for cost accounting as.

Q: How are steel pipes graded?: Steel pipes are graded based on several factors to determine their quality and suitability for specific applications. The grading system for steel pipes typically includes parameters such as the chemical composition, mechanical properties, manufacturing method, and testing standards. 1. Chemical composition: Steel pipes are graded based on the elements present in their composition. This includes the amount of carbon, manganese, phosphorus, sulfur, and other alloying elements. The chemical composition greatly influences the pipe's strength, corrosion resistance, and other properties. 2. Mechanical properties: The mechanical properties of steel pipes are crucial for determining their strength, flexibility, and resistance to pressure and temperature. These properties include tensile strength, yield strength, elongation, hardness, and impact toughness. Pipes with higher mechanical properties are generally graded higher. 3. Manufacturing method: Steel pipes can be manufactured using various methods, such as seamless, welded, or ERW (Electric Resistance Welding). The manufacturing method affects the pipe's integrity, dimensional accuracy, and overall quality. Seamless pipes, for example, are considered to have higher quality due to their uniformity and absence of weld seams. 4. Testing standards: Steel pipes are graded based on their adherence to specific testing standards. These standards ensure that the pipes meet the required quality criteria and are suitable for their intended applications. Common testing standards include ASTM (American Society for Testing and Materials), API (American Petroleum Institute), and EN (European Norms). Based on these factors, steel pipes are often graded using alphanumeric codes or specifications. For instance, pipes used in oil and gas industry may be graded as API 5L (American Petroleum Institute) or pipes used for structural purposes may be graded as ASTM A500 (American Society for Testing and Materials). In conclusion, steel pipes are graded based on their chemical composition, mechanical properties, manufacturing method, and adherence to testing standards. These grades help customers and manufacturers in selecting the appropriate pipes for specific applications, ensuring safety, durability, and efficiency in various industries.

Q: How are steel pipes used in irrigation systems?: Steel pipes are commonly used in irrigation systems to transport water from a water source, such as a well or a reservoir, to the fields or plants that need to be irrigated. These pipes are durable, strong, and resistant to corrosion, making them ideal for withstanding the constant flow of water and the harsh outdoor conditions. They are typically laid underground or above the surface, depending on the specific irrigation system design, and are connected to sprinklers or drip irrigation systems to distribute water efficiently and effectively to the crops or plants.

Q: How are steel pipes connected to other plumbing components?: Steel pipes are commonly connected to other plumbing components through various methods, depending on the specific application and requirements. The most common methods of connecting steel pipes to other plumbing components include threading, welding, and using mechanical fittings. Threading is a process where the ends of the steel pipes are cut and grooves are created on the outer surface to form a threaded connection. This allows the pipes to be screwed into fittings such as elbows, tees, or couplings. Threaded connections are often used in smaller diameter pipes and low-pressure applications. Welding is another commonly used method to connect steel pipes. It involves heating the ends of the pipes and joining them together by melting the metal at the point of contact. This creates a strong and permanent connection. Welded connections are often used in larger diameter pipes and high-pressure applications. Mechanical fittings are another popular option for connecting steel pipes. These fittings are designed to be easily installed without the need for welding or threading. They typically consist of two parts – a compression ring and a nut. The compression ring is placed over the pipe, and the nut is tightened, compressing the ring onto the pipe and creating a secure connection. Mechanical fittings are commonly used in both residential and commercial plumbing systems. In addition to these methods, other connection techniques such as flanges, grooved couplings, and soldering can also be used to connect steel pipes to other plumbing components, depending on the specific needs of the system. Overall, the method used to connect steel pipes to other plumbing components depends on factors such as the size of the pipes, the pressure of the system, the type of fluid being transported, and the specific requirements of the project. It is important to choose the appropriate method and ensure that the connections are properly installed to ensure the integrity and efficiency of the plumbing system.

Q: What is the average lifespan of steel pipes?: The average lifespan of steel pipes can vary depending on various factors such as the quality of the steel used, the environment in which they are installed, and the maintenance and care they receive. However, on average, well-maintained steel pipes can last anywhere from 50 to 100 years or more.

Q: Can steel pipes be used for gas transportation?: Yes, steel pipes can be used for gas transportation. Steel pipes are commonly used for the transportation of natural gas, propane, and other gases due to their high strength, durability, and resistance to corrosion. They can effectively withstand high pressure and extreme temperatures, making them a reliable choice for gas transportation systems.

Q: How are steel pipes used in the construction of stadiums and arenas?: Steel pipes are commonly used in the construction of stadiums and arenas for various purposes such as structural support, plumbing, and HVAC systems. They provide a strong and durable framework for the building, allowing for large spans and open spaces. Additionally, steel pipes are used for the distribution of water, gas, and waste, as well as for ventilation and air conditioning systems. Overall, steel pipes play a crucial role in ensuring the safety, functionality, and longevity of stadiums and arenas.

Q: Are metal spiral tubes the same as metal bellows?: The spiral tube called spiral steel tube or spiral welded pipe, the low carbon steel or low alloy structural steel strips in a helical line certain angle (called forming angle) rolled into a tube, then the tube welding seam made up, it can be used in narrow strip production of large diameter steel pipe. The pitch of a spiral pipe is much larger than that of a bellows.

Q: What are the disadvantages of using steel pipes?: One major disadvantage of using steel pipes is their susceptibility to corrosion. Over time, exposure to moisture and certain chemicals can cause the pipes to rust and weaken, leading to leaks or structural damage. Additionally, steel pipes are generally heavier and more expensive than alternative materials, making them less suitable for certain applications where weight and cost are crucial factors.

Q: Are steel pipes suitable for underground irrigation systems?: Yes, steel pipes can be suitable for underground irrigation systems. Steel pipes are known for their durability and strength, making them resistant to corrosion and able to withstand high pressure. They are also less likely to crack or break under the ground's weight or pressure. Additionally, steel pipes have a long lifespan, reducing the need for frequent replacements. However, it is important to consider the type of water being transported, as certain minerals or chemicals in the water can cause corrosion over time. In such cases, it may be necessary to use corrosion-resistant coatings or liners. Overall, steel pipes are a reliable choice for underground irrigation systems, especially in areas with high water pressure or where durability is a priority.

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