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: How are steel pipes used in the manufacturing of HVAC systems?: Steel pipes are commonly used in the manufacturing of HVAC systems for various purposes. They are primarily used for transporting fluids such as water, refrigerants, and gases throughout the system. Steel pipes provide durability and strength, ensuring the safe and efficient transfer of these substances. Additionally, steel pipes are often used for structural support, acting as a framework for the HVAC system. Overall, steel pipes play a crucial role in the manufacturing of HVAC systems by facilitating fluid transportation and providing structural stability.

Q: What are the different methods of inspecting steel pipes for defects?: There are several methods of inspecting steel pipes for defects, including visual inspection, magnetic particle inspection, ultrasonic testing, radiographic testing, and eddy current testing. Each method has its own advantages and limitations, and the choice of inspection method depends on factors such as the type of defect being searched for, the size and shape of the pipe, and the desired level of accuracy and sensitivity.

Q: How are steel pipes protected against mechanical impact?: Steel pipes are protected against mechanical impact through various methods such as adding protective coatings, using steel pipe supports and clamps, or installing protective barriers to absorb and distribute impact forces.

Q: How do you calculate the pipe thermal expansion for steel pipes?: To calculate the thermal expansion of steel pipes, you can use the formula: ΔL = α * L * ΔT, where ΔL represents the change in length, α is the coefficient of thermal expansion for steel, L is the original length of the pipe, and ΔT is the change in temperature.

Q: What are the different types of fittings used with steel pipes?: Steel pipes are commonly paired with various fittings that serve to connect, control, or alter the flow direction in a piping system. Some of these fittings include: 1. Elbow fittings: Designed to modify the flow direction, elbow fittings are available in different angles, such as 45 or 90 degrees. They are frequently utilized to navigate obstacles or introduce bends in the pipe. 2. Tee fittings: Tee fittings are implemented to create a branch or division in the piping system. With three openings, one perpendicular to the other two, they enable the connection of two pipes at a 90-degree angle. 3. Coupling fittings: Used to join two pipes of the same size, coupling fittings are typically threaded and can be easily fastened or removed with a wrench. They are commonly employed when pipes need to be connected or repaired. 4. Reducer fittings: Reducers are employed to connect pipes of varying sizes. They consist of one end with a larger diameter and another end with a smaller diameter. Reducers are often employed to transition between pipe sizes or adapt to different equipment or fittings. 5. Flange fittings: Flanges are utilized to establish a secure and leak-proof connection between pipes, valves, or other equipment. They consist of a flat, circular plate with holes to accommodate bolts or screws for fastening the flange to the pipe. Flange fittings find frequent use in applications that necessitate frequent disassembly and reassembly. 6. Union fittings: Union fittings are employed to join two pipes in a manner that facilitates easy disconnection. They comprise three parts: a nut, a female end, and a male end. Union fittings are commonly used in scenarios that require periodic maintenance or repairs. 7. Cap fittings: Cap fittings are employed to seal the end of a pipe. Usually threaded, they can be effortlessly screwed onto the pipe's end. Cap fittings are commonly used in instances where temporary closure or protection of pipes is necessary. These examples represent some of the various fittings utilized with steel pipes. The specific fitting required depends on factors such as the application, pipe size and material, as well as the desired functionality of the piping system.

Q: What are the different coatings applied to steel pipes?: There are various coatings that can be applied to steel pipes to enhance their durability and protect them from corrosion. Some common coatings include fusion-bonded epoxy (FBE), which provides excellent corrosion resistance, and polyethylene (PE), which offers high impact strength. Other coatings include polyurethane (PU) and coal tar enamel, which provide additional protection against abrasion and chemical corrosion. Additionally, zinc coatings such as hot-dip galvanizing are used to prevent rust and extend the lifespan of steel pipes.

Q: Can steel pipes be used for conveying corrosive substances?: When conveying corrosive substances, it is crucial to select the appropriate type of steel and take additional protective measures. For instance, stainless steel pipes offer excellent resistance to corrosion and can handle a wide range of corrosive substances. However, one must carefully consider the specific corrosive properties and concentration levels of the substance being conveyed. In certain cases, applying additional protective coatings or linings may be necessary to prevent corrosion and guarantee the pipes' durability. Regular maintenance and inspection play a vital role in identifying and addressing any signs of corrosion to avoid leaks or failures in the piping system. In conclusion, while steel pipes are suitable for conveying corrosive substances, proper material selection, protective measures, and maintenance are essential for safe and efficient operations.

Q: What are the common methods for inspecting the integrity of steel pipes?: Common methods for inspecting the integrity of steel pipes include visual inspection, ultrasonic testing, magnetic particle testing, radiographic testing, and pressure testing.

Q: How are steel pipes used in the construction of skyscrapers?: Steel pipes are commonly used in the construction of skyscrapers for various purposes. They are primarily used as structural components, providing strength and stability to the building's framework. Steel pipes are used to create columns, beams, and trusses, which support the weight of the entire structure. Additionally, steel pipes are used for plumbing and HVAC systems, allowing for efficient distribution of water, air, and other utilities throughout the building. Overall, steel pipes play a crucial role in the construction of skyscrapers, ensuring their durability, safety, and functionality.

Q: How are steel pipes used in the manufacturing of geothermal systems?: Steel pipes are used in the manufacturing of geothermal systems for their durability and heat conductivity. They are used to transport fluids, such as water or steam, between the geothermal source and the heat pump or power generator. Steel pipes can withstand high temperatures and pressures, making them ideal for the harsh environment of geothermal systems. Additionally, their corrosion resistance ensures the longevity and efficiency of the system.

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