38'' CARBON STEEL SSAW 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 are the factors to consider while selecting steel pipes for a project?: When selecting steel pipes for a project, there are several important factors to consider. These factors include the material composition of the steel, the pipe dimensions, the intended application, the environmental conditions, and the budget. 1. Material Composition: The material composition of the steel pipes is crucial as it determines the pipes' strength, corrosion resistance, and durability. Common types of steel used for pipes include carbon steel, stainless steel, and alloy steel. Each type has its own set of properties and is suitable for different applications. 2. Pipe Dimensions: The dimensions of the steel pipes, such as diameter and wall thickness, should be carefully considered. The pipe dimensions must be compatible with the project requirements and the system in which the pipes will be installed. It is essential to ensure that the selected pipes can handle the required flow rates and pressures. 3. Intended Application: The specific application of the steel pipes should be thoroughly assessed. Different projects may require pipes with varying characteristics, such as heat resistance, pressure resistance, or the ability to transport specific substances like gas, oil, or water. Understanding the application requirements will help in choosing the appropriate type of steel pipes. 4. Environmental Conditions: The environmental conditions in which the pipes will be installed must be evaluated. Factors such as temperature variations, exposure to moisture, corrosive substances, and external pressures should be taken into account. For instance, if the project involves underground installation or exposure to corrosive chemicals, corrosion-resistant steel pipes may be necessary. 5. Budget: The budget available for the project is also an important factor to consider. The cost of steel pipes can vary depending on their material composition, dimensions, and additional features. It is crucial to strike a balance between the project requirements and the available budget to ensure cost-effectiveness without compromising the quality and performance of the pipes. In conclusion, when selecting steel pipes for a project, it is important to consider factors such as the material composition, pipe dimensions, intended application, environmental conditions, and budget. By carefully evaluating these factors, one can choose the most suitable steel pipes that meet the project requirements and ensure long-term performance and durability.

Q:Are steel pipes resistant to impact?: Yes, steel pipes are generally resistant to impact due to their high strength and durability. They can withstand external forces and are less likely to deform or break upon impact compared to other materials.

Q:How are steel pipes protected against internal scaling?: Internal coating or lining is a process employed to safeguard steel pipes from internal scaling. This entails applying a protective layer on the inside of the pipe to prevent the formation of scales or deposits. Multiple techniques are utilized for this purpose. One prevalent approach is the application of epoxy coatings. Epoxy, a resilient and corrosion-resistant material, forms a continuous barrier on the pipe's interior. It effectively hinders the accumulation of minerals and other substances that contribute to scaling. Epoxy coatings are commonly sprayed or brushed onto the inner surface of the pipe and then hardened to create a durable and smooth finish. Cement mortar lining is another method used to protect steel pipes from internal scaling. This involves applying a layer of cement mortar to the pipe's interior. The cement mortar acts as a barrier against scaling and offers additional corrosion protection. This lining process is typically employed for large-diameter pipes utilized in water distribution systems. Polyethylene (PE) lining is yet another technique deployed to safeguard steel pipes against internal scaling. PE lining necessitates the insertion of a high-density polyethylene liner into the pipe. This liner acts as a barrier against scaling and enhances fluid flow by reducing friction. PE lining is frequently used in applications that require a smooth interior surface, such as oil and gas pipelines. Apart from these methods, regular maintenance and cleaning of the pipes can also aid in preventing internal scaling. This may involve using chemical cleaning agents or mechanical cleaning techniques to eliminate any deposits that have formed on the pipe's interior surface. Overall, safeguarding steel pipes against internal scaling is vital to maintain their efficiency and prolong their lifespan. By employing various coating and lining methods, along with implementing appropriate maintenance practices, the risk of internal scaling can be significantly diminished.

Q:Are steel pipes suitable for solar power plants?: Yes, steel pipes are suitable for solar power plants. Steel pipes are often used in the construction of solar power plants due to their durability, strength, and resistance to corrosion. They can be used for various purposes in a solar power plant, including the transportation of fluids such as water or heat transfer fluids, as well as providing structural support for solar panels and other equipment. Steel pipes are capable of withstanding high temperatures and pressure, making them ideal for the efficient operation of solar power plants. Additionally, steel pipes are readily available and cost-effective, making them a popular choice in the construction of solar power plants.

Q:What is the difference between black and galvanized steel pipes?: The main difference between black and galvanized steel pipes is the protective coating. Black steel pipes are untreated and prone to rusting, while galvanized steel pipes are coated with a layer of zinc to prevent corrosion. This zinc coating makes galvanized pipes more durable and suitable for outdoor applications, such as plumbing or fencing, whereas black steel pipes are commonly used for indoor plumbing or gas lines.

Q:How are steel pipes used in plumbing systems?: Steel pipes are commonly used in plumbing systems for their durability and strength. They are used to transport water, gas, and waste materials in both residential and commercial buildings. Steel pipes are known for their resistance to corrosion and high pressure, making them ideal for underground and outdoor applications. Additionally, steel pipes are often used for plumbing fixtures such as faucets, showers, and toilets, providing a reliable and long-lasting solution for water distribution and drainage.

Q:Can steel pipes be used for offshore applications?: Steel pipes are suitable for offshore applications. They are commonly employed in offshore industries due to their durability, strength, and resistance to corrosion. In offshore settings, such as oil and gas exploration, drilling, production, and fluid and gas transportation, steel pipes are frequently necessary. These pipes are specifically designed to endure harsh and corrosive conditions found offshore, which include exposure to saltwater, extreme temperatures, and high pressure. Moreover, steel pipes can be manufactured to meet specific requirements for offshore projects, guaranteeing safety and dependability in terms of size, thickness, and material grade. In summary, steel pipes are a dependable and extensively utilized option for offshore applications.

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.

Q:How do you determine the maximum allowable stress for a steel pipe?: To determine the maximum allowable stress for a steel pipe, several factors need to be considered. These include the material properties of the steel, such as its yield strength, ultimate tensile strength, and elongation. Additionally, the pipe's dimensions, wall thickness, and the intended application or service conditions must be taken into account. By considering these factors, along with relevant design codes and standards, engineers can calculate the maximum stress that the steel pipe can safely withstand without experiencing failure.

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