Stainless Steel Welded Pipe ASTM A358 A312 A316

Stainless Steel Welded Pipe ASTM A358 A312 A316

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Loading Port:: China main port

Payment Terms:: TT OR LC

Min Order Qty:: 30 m.t.

Supply Capability:: 6000 m.t./month

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Stainless Steel Welded Pipe ASTM A358 A312 A316

Product Description:

Structure:

Stainless steel welded pipe is actually a cover term, covering a wide range of alloy and making them suitable for different attributes that are used in a very wide and large numbers of different industries.

Stainless steel pipe is resistant to erosion, highly flexible, powerful, easy to use, and can be done in distinct approaches, which means that more and more stainless steel was used as a construction material for large-scale, high impact buildings.

Main Features:

• High manufacturing accuracy

• High strength

• Good visual effect

•Reasonable price

Specifications:

Size:

Outside diameter		Outside	Thickness
Outside diameter		Outside	SCH 5S	SCH 10S	SCH 20S	SCH 40S
(A)	(B)	mm	mm	mm	mm	mm
350	14′	355.6	3.96	4.78	7.92	11.13
400	16′	406.4	4.19	4.78	7.92	12.7
450	18′	457.2	4.19	4.78	7.92	14.27
500	20′	508	4.78	5.54	9.53	15.09
550	22′	558.8	4.78	5.54	9.53	15.09
600	24′	609.6	5.54	6.35	9.53	17.48
650	26′	660.4	5.54	7.92	12.7	17.48
700	28′	711.2	5.54	7.92	12.7	17.48
750	30′	762	6.35	7.92	12.7	17.48
800	32′	812.8		7.9	12.7	17.48

Tolerances table:

Standard	Outside(mm)		Thickness(mm)	Length(mm)
ASTM A312	≤48.26	-0.4	+No special provisions(Unspecified)-12.50%	Appoint LengthDefinite cut length+6.40
	＞48.26~114.30	0		0
	＞114.30~219.08	0.8
	＞219.08~457.20	1.6
	＞457~660	-4
	＞660~864	-5
	＞864~1219	-5.6
JIS G3459	＜30.00 ±0.30≥30.00 ±1.00%		＜2.00 ±0.20≥2.00 ±10%	Appoint LengthDefinite cut Length

Stainless Steel Welded Pipe ASTM A358 A312 A316

Q: What are the standard dimensions for steel pipes?: The standard dimensions for steel pipes vary depending on the application and industry. However, common sizes range from ½ inch to 48 inches in diameter and have various wall thicknesses based on the required strength and pressure rating.

Q: Are steel pipes affected by UV rays?: Yes, steel pipes can be affected by UV rays. Exposure to UV rays can cause the steel to degrade and corrode over time. Therefore, it is important to protect steel pipes from direct sunlight and UV radiation to prolong their lifespan and maintain their structural integrity.

Q: How do you prevent steel pipes from rusting?: To prevent steel pipes from rusting, various measures can be taken. One effective method is to apply a protective coating on the surface of the pipes. This can be done using different types of coatings such as paint, epoxy, or zinc. These coatings act as a barrier between the steel and the corrosive environment, preventing moisture and oxygen from coming into direct contact with the metal and causing rust. Another approach is to use corrosion inhibitors. These substances are added to the water or fluid flowing through the pipes to create a protective film on the steel's surface. This film acts as a shield, inhibiting the corrosion process and preventing rust formation. Regular maintenance is crucial in preventing rust on steel pipes. This includes inspecting the pipes for any signs of damage or corrosion and promptly repairing or replacing any compromised areas. Additionally, keeping the pipes clean and dry by removing any accumulated dirt or moisture helps to prevent rust formation. In some cases, it may be beneficial to use stainless steel pipes instead of regular steel. Stainless steel contains chromium, which forms a passive oxide layer on the surface of the metal. This layer acts as a natural barrier against corrosion, making stainless steel pipes highly resistant to rust. Lastly, controlling the environment in which the pipes are installed can also help prevent rust. This can be achieved by maintaining proper ventilation, controlling humidity levels, and avoiding exposure to harsh chemicals or corrosive substances. By implementing these preventive measures, the lifespan and integrity of steel pipes can be significantly extended while minimizing the risk of rust formation.

Q: Which is more load-bearing, the same thickness of steel pipe and steel bar?: The same length, the same pipe diameter, the same material strength is hollow, the ratio of area of steel (solid), and the cyclical and slender radius smaller than the larger, so the longitudinal stability coefficient is smaller, three factors, two factors are weak in steel reinforced, another factor: strength, they are the same, no doubt, steel reinforced bearing less than.

Q: Can steel pipes be used for conveying compressed air?: Indeed, compressed air can indeed be conveyed through steel pipes. In industrial settings, steel pipes find frequent use due to their ability to withstand high pressure and maintain durability. With their remarkable tensile strength, steel pipes prove capable of handling the immense pressures generated by compressed air systems. Furthermore, the resistance of steel pipes to corrosion becomes crucial when confronted with moisture within compressed air. Nevertheless, it remains vital to guarantee that the steel pipes are adequately sized and rated to meet the precise pressure and flow prerequisites of the compressed air system. Moreover, adhering to proper installation and maintenance practices becomes imperative to avert any potential leaks or failures.

Q: How are steel pipes used in the manufacturing of boilers and heat exchangers?: Steel pipes are an essential component in the manufacturing of boilers and heat exchangers due to their unique properties and capabilities. These pipes are specifically designed to withstand high temperatures, pressures, and corrosive environments, making them ideal for these applications. In the manufacturing process of boilers, steel pipes are used to construct the main body or shell of the boiler. This shell contains the water or steam that is heated to generate heat or produce steam for various industrial processes. The steel pipes used in boilers are typically seamless or welded, with precise dimensions and high strength to ensure structural integrity and prevent leaks. Heat exchangers, on the other hand, are devices used to transfer heat between two fluids, often with different temperatures. Steel pipes are employed in heat exchangers as the primary medium for transferring heat. The pipes are usually arranged in a pattern, allowing the hot fluid to pass through one set of pipes while the cold fluid passes through another set. This arrangement enables efficient heat transfer between the two fluids. The use of steel pipes in boilers and heat exchangers offers several advantages. Firstly, steel pipes have excellent thermal conductivity, allowing for efficient heat transfer between the fluid and the surrounding environment. Secondly, steel pipes have high tensile strength and can withstand high pressure, ensuring the safety and reliability of the equipment. Thirdly, steel pipes are resistant to corrosion, which is crucial in environments where the fluids being processed are corrosive or contain impurities. Moreover, steel pipes can be easily fabricated and customized to meet the specific requirements of boilers and heat exchangers. They can be manufactured in various sizes, lengths, and thicknesses to accommodate different applications. Additionally, steel pipes can be coated or lined with materials such as ceramic or epoxy to provide further protection against corrosion or abrasion. In summary, steel pipes play a vital role in the manufacturing of boilers and heat exchangers. Their unique properties, including high strength, thermal conductivity, and corrosion resistance, make them the ideal choice for these applications. The use of steel pipes ensures the efficient operation, safety, and longevity of boilers and heat exchangers in various industrial processes.

Q: Can steel pipes be used for underground fuel pipelines?: Indeed, underground fuel pipelines can utilize steel pipes for their construction. Steel pipes are widely favored for different pipeline applications owing to their exceptional durability, strength, and resistance to corrosion. In the case of underground fuel pipelines, steel pipes are particularly sought-after due to their capacity to endure significant pressure and fluctuations in temperature. Moreover, by shielding against external factors like soil shifts and chemical reactions, steel pipes offer exceptional safeguarding to the fuel transportation system, ensuring its safety and integrity. Through appropriate insulation and coating, the corrosion resistance of steel pipes can be further enhanced, solidifying their dependability as a choice for underground fuel pipelines.

Q: Are steel pipes resistant to vibration?: Yes, steel pipes are generally resistant to vibration due to their inherent strength and rigidity. However, the level of resistance can vary depending on factors such as pipe thickness, design, and installation. Additionally, the presence of external factors like fluid flow or mechanical forces can also affect the level of vibration resistance.

Q: What are the different joining methods for steel pipes?: There are several joining methods for steel pipes, including welding, threaded connections, flanged connections, and mechanical couplings. Welding involves melting the ends of the pipes and fusing them together using heat. Threaded connections involve screwing the pipes together using threaded ends. Flanged connections use flanges that are bolted together to connect the pipes. Mechanical couplings use a variety of methods such as compression fittings or grooved couplings to connect the pipes without welding or threading.

Q: How are steel pipes classified based on their thickness?: There are three main categories for classifying steel pipes based on their thickness: Schedule, Nominal Pipe Size (NPS), and Wall Thickness. In North America, the Schedule classification is commonly used and refers to the pipe's wall thickness. It is indicated by numbers like Schedule 10, Schedule 40, and Schedule 80, where a higher number means a thicker pipe. On the other hand, the Nominal Pipe Size (NPS) classification is used internationally and refers to the pipe's inside diameter. It is expressed in inches and is usually followed by a schedule number to indicate the wall thickness. For example, NPS 6 Schedule 40 means a pipe with a 6-inch inside diameter and a wall thickness according to Schedule 40. Additionally, steel pipes can be classified based on their wall thickness in millimeters or inches. This classification provides a more precise measurement of the pipe's thickness and is commonly referred to as the "wall thickness" or "wt" in specifications. The wall thickness is measured from the outside diameter to the inside diameter and can be expressed in various units of measurement like millimeters, inches, or gauge. In summary, steel pipes are classified based on their thickness using different systems such as Schedule, Nominal Pipe Size (NPS), and Wall Thickness. These classifications ensure the selection of the appropriate pipe for specific applications, taking into account factors such as pressure requirements, structural integrity, and compatibility with other system components.

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