SPIRAL WELDED STEEL PIPE 14/16/18 MIDDLE DIMETER CARBON

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 5 m.t

Supply Capability:: 3000 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

Spiral Welded Steel Pipes and Tubes

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:Is there a weld on the outer wall of seamless steel tube?: Seamless steel pipe, not seamless steel pipe, seamless steel pipe, welded seam, how can it be called seamless pipe?. Tell you a method: measurement of wall thickness, multi test several points, if each point, that is because it is cold drawn pipe, seamless pipe, hot rolling, wall thickness may% by sample.

Q:What is the role of steel pipes in the transportation of liquefied natural gas (LNG)?: Steel pipes play a vital role in the transportation of liquefied natural gas (LNG) due to their unique properties and characteristics. LNG is a form of natural gas that has been cooled to a liquid state for ease of transportation and storage. The transportation of LNG requires specific infrastructure, and steel pipes are an essential component of this infrastructure. Firstly, steel pipes are used in the construction of LNG terminals and liquefaction plants. These facilities are responsible for converting natural gas into its liquid form and storing it before transportation. The extreme cold temperatures required to maintain LNG in its liquid state necessitate the use of materials that can withstand these conditions, and steel pipes are well-suited for this purpose. Steel pipes have excellent strength and durability, making them capable of handling the low temperatures and high pressures involved in the liquefaction and storage processes. Secondly, steel pipes are used in the transportation of LNG from the liquefaction plants to the storage tanks or shipping vessels. LNG is typically transported over long distances, either through pipelines or via specialized LNG carriers. Steel pipes are used in the construction of underground or above-ground pipelines, providing a reliable and safe means of transporting the LNG. The pipes must be able to maintain the low temperatures of the LNG while withstanding the pressures and stresses associated with the transportation process. Steel pipes offer the necessary strength, corrosion resistance, and thermal properties to ensure the safe and efficient transportation of LNG. Lastly, steel pipes are also used in the construction of storage tanks for LNG. These tanks are designed to maintain the LNG in its liquid state until it is ready for use or further transportation. The tanks are often constructed using a combination of steel plates and steel pipes. Steel pipes are used to connect the various components of the tank, such as the inner and outer shells, reinforcing the structural integrity of the tank and ensuring its ability to withstand the extreme conditions to which it is subjected. In summary, steel pipes play a crucial role in the transportation of liquefied natural gas (LNG) due to their strength, durability, and ability to withstand low temperatures and high pressures. From the construction of LNG terminals and liquefaction plants to the transportation through pipelines or on specialized vessels, steel pipes are a vital component of the infrastructure required for the safe and efficient transportation and storage of LNG.

Q:What is the electrical conductivity of steel pipes?: The electrical conductivity of steel pipes is relatively low, as steel is a poor conductor of electricity.

Q:How do you calculate the weight of a steel pipe?: To calculate the weight of a steel pipe, you need to know its outer diameter, wall thickness, and length. First, calculate the cross-sectional area of the pipe by subtracting the inner diameter from the outer diameter and multiplying it by π. Then, multiply the cross-sectional area by the wall thickness and length of the pipe to find its volume. Finally, multiply the volume by the density of steel to calculate the weight of the steel pipe.

Q:What is the single length of galvanized steel pipe?: The single length of galvanized pipe is 6 meters. The length of galvanized seamless steel tube is uncertain, depending on the length of seamless steel tube.

Q:What are the advantages of using stainless steel pipes?: There are several advantages of using stainless steel pipes. Firstly, stainless steel pipes have excellent corrosion resistance, making them suitable for a wide range of applications, including industrial, commercial, and residential plumbing systems. They can withstand harsh environments, chemicals, and high temperatures without deteriorating or rusting. Secondly, stainless steel pipes have high strength and durability, ensuring long-term reliability and reducing the need for frequent repairs or replacements. They can handle high pressure and stress, making them suitable for transporting fluids and gases in various industries. Additionally, stainless steel pipes are hygienic and easy to clean, making them ideal for applications in the food, beverage, and pharmaceutical industries. They are resistant to bacterial growth and contamination, ensuring the integrity and safety of the transported materials. Furthermore, stainless steel pipes are aesthetically pleasing and can be easily customized to fit different design requirements. They offer a sleek and modern appearance, making them suitable for architectural and decorative purposes. Overall, the advantages of using stainless steel pipes include corrosion resistance, durability, strength, hygiene, and aesthetic appeal, making them a reliable and versatile choice for various industries and applications.

Q:What are the safety precautions to follow while working with steel pipes?: To ensure a safe working environment when dealing with steel pipes, it is crucial to adhere to specific safety measures. Consider the following key precautions: 1. Personal Protective Equipment (PPE): Always wear appropriate PPE, such as safety goggles, gloves, steel-toed boots, and a hard hat. This will shield you from potential hazards like falling objects, sharp edges, or flying particles. 2. Practice proper lifting methods: Given that steel pipes can be heavy and unwieldy, employ correct lifting techniques like bending your knees and utilizing your leg muscles to avoid straining your back or causing musculoskeletal injuries. 3. Secure the work area: Eliminate any clutter or obstacles in the work area that may present a tripping hazard. Ensure that the pipes are stored and secured adequately to prevent rolling or falling. 4. Exercise caution around sharp edges: Steel pipes often possess sharp edges that can cause cuts or punctures. Handle them with care and consider using protective covers or gloves to prevent injuries. 5. Utilize appropriate tools: Use the correct tools and equipment for cutting, welding, or manipulating steel pipes. Adhere to manufacturer instructions and guidelines to ensure safe usage. 6. Avoid working in confined spaces: Working in cramped areas presents significant risks. If necessary, ensure proper ventilation and adhere to confined space entry protocols to prevent asphyxiation or other hazards. 7. Adhere to proper welding procedures: When welding is involved, follow appropriate welding procedures and guarantee adequate ventilation in the workspace. Employ fire-resistant blankets or screens to protect nearby combustible materials. 8. Be cautious of hot surfaces: Steel pipes can become hot during welding or other processes. Utilize appropriate insulation or heat-resistant gloves to safeguard yourself against burns or heat-related injuries. 9. Establish effective communication: Establish clear channels of communication with colleagues, especially during tasks like lifting or moving heavy objects. Use hand signals or verbal communication to ensure everyone is on the same page and to prevent accidents. 10. Regularly inspect tools and equipment: Before commencing any task, inspect tools, equipment, and scaffolding for damages or defects. Report and replace any faulty equipment to prevent accidents. Always prioritize safety when working with steel pipes. By adhering to these precautions and using common sense, you can guarantee a safe working environment for yourself and your colleagues.

Q:How do you measure the thickness of a steel pipe?: There are several ways to measure the thickness of a steel pipe. One common method is to use a specialized tool called a caliper or micrometer. This tool allows you to precisely measure the diameter of the pipe at various points, and by subtracting the inner diameter from the outer diameter, you can determine the thickness. Another approach is to use an ultrasonic thickness gauge, which uses sound waves to measure the thickness of the pipe. This non-destructive testing method is particularly useful for pipes that are already installed or are difficult to access. Additionally, you can also use a magnetic or eddy current thickness gauge, which relies on the principle of magnetism or electromagnetic induction to measure the thickness of the pipe.

Q:What are the different end finishes for steel pipes?: The different end finishes for steel pipes include plain ends, beveled ends, threaded ends, and grooved ends.

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