ASTM A269 Seamless Stainless Steel Pipe

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 25 m.t.

Supply Capability:: 1000 m.t./month

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Quick Details

Standard:	JIS,AISI,ASTM,DIN,EN	Place of Origin:	China (Mainland)	Brand Name:	OKORDER
Model Number:	stainless steel pipe	Type:	Seamless	Steel Grade:	300 Series
Application:	stainless steel pipe	Certification:	ISO	Thickness:	1-30
Outer Diameter:	6-530	Quality:	good stainless steel pipe	Brand:	stainless steel pipe

Packaging & Delivery

Packaging Detail:	polywood box
Delivery Detail:	35days

Specifications

ASTM A269 Seamless Stainless Steel Pipe:
Outside diameter from 6mm to 530mm.
Wall thickness from 0.5mm to 38.1mm.

ASTM A269 Seamless Stainless Steel Pipe

1. Material	TP304/304L, 316/316L, 310S, 317L, 321, 347H,etc.
1. Material	S31803, 32750, etc.
2. Standard	ASTM, ASME, DIN, EN, ISO,JIS, GOST, etc.
3. Type	Seamless
4. Size range	OD: from 6mm to 1000mm (NPS from 1/8'' to 40'')
	WT: from 0.7mm to 38mm (Schedule from 5S to XXS)
	Length: fix length or un-fix length, Max 30meters
5. Produce process	Pilgering and cold drawn
6. Surface process	Pickling and annealing
	AP tube
	BA tube
7. Marking	JW, GRADE, seamless, STANDARD, SIZE, HT NO.
8. Package	Bundles with waterproof cloth outside.
8. Package	or plywood box.
9. Min order quantity	500 KG
10. Sample	Yes
11. OEM accepted	Yes
12. Production capacity	300 tons per month
13. Payment term	T/T or L/C.
14. Certificate	ISO 9001, PED
15. Third party ertificate	BV, LR, SGS, TUV, CCS, ABS, etc.

Q:Do stainless steel pipes require any special coatings?: Stainless steel pipes, being resistant to corrosion and staining, are highly durable and long-lasting. Their inherent corrosion resistance eliminates the need for extra coatings or treatments. The presence of chromium in the alloy composition creates a protective oxide layer on the surface, preventing rust and corrosion. As a result, stainless steel pipes can be used in various applications without the necessity of special coatings for protection.

Q:Are stainless steel pipes fire-resistant?: Yes, stainless steel pipes are fire-resistant. Due to their high melting point and excellent heat resistance, stainless steel pipes can withstand extreme temperatures and prevent the spread of fire, making them a reliable choice for fire protection systems.

Q:Can stainless steel pipes be used for cryogenic applications?: Yes, stainless steel pipes can be used for cryogenic applications. Stainless steel has excellent low temperature properties, such as good mechanical strength and resistance to embrittlement, making it suitable for handling cryogenic fluids and gases at extremely low temperatures.

Q:Are stainless steel pipes suitable for pharmaceutical industries?: Pharmaceutical industries find stainless steel pipes to be highly suitable. The reason is that stainless steel possesses excellent corrosion resistance and can withstand high temperatures and pressure. These qualities are essential in pharmaceutical applications, where maintaining product purity and preventing contamination are crucial. The non-reactive nature of stainless steel pipes ensures that they do not interact with the pharmaceutical products being transported. This guarantees the integrity and safety of the drugs. Additionally, stainless steel pipes are easy to clean and sanitize, making them ideal for pharmaceutical manufacturing processes that require frequent cleaning. Moreover, stainless steel pipes adhere to the strict regulations and standards set by pharmaceutical authorities. This ensures that the industry's quality and safety requirements are met. They can also be customized to meet specific needs, such as different sizes, shapes, and wall thicknesses, allowing for flexibility in design and installation. In conclusion, stainless steel pipes offer numerous advantages for pharmaceutical industries. These advantages include durability, resistance to corrosion and contamination, ease of cleaning, and compliance with industry standards.

Q:What is the difference between the stainless steel pipe welded pipe and seamless pipe?: Strength: the strength of the pipeline in the composition of the alloy and alloy containing the same and the same heat treatment of seamless tube and seamed tube essentially consistent strength. After the tensile test and three-dimensional vibration test, tube tearing almost all occurred in the welding point or away from the heated area where. This is because there is little impurity in the weld and the nitrogen content is slightly higher, so the strength of the welded joint is better than that of other parts. However, the ASME Boiler and Pressure Vessel Association believes that the seamed tube can withstand 85% of the allowable pressure, which is mainly due to improved welding equipment data collection prior to today. The provisions of ASME 100% completely under license by ultrasonic testing pressure tube. Similarly, Europe and Asia also stipulates that can ensure the quality of welding performance by eddy current test tube, the eddy current testing is subject to legal procedures and licensed institutions. Trent's eddy current test was approved by the Swedish power division. ASME believes the current loss is relatively small, high-quality performance based on the seamed tube.

Q:What are the common corrosion issues with stainless steel pipes?: There are a few common corrosion issues that can occur with stainless steel pipes. One of the most common is called pitting corrosion, which is characterized by small pits or holes that form on the surface of the pipe. Pitting corrosion is often caused by exposure to chloride ions, which can come from substances like saltwater or certain types of cleaning agents. Another common corrosion issue is crevice corrosion, which occurs in the narrow gaps or crevices between the pipe and other surfaces. These gaps can trap moisture or other corrosive substances, leading to localized corrosion. Crevice corrosion is often seen in areas where the pipe is joined or in areas with poor ventilation. Stress corrosion cracking is another common problem with stainless steel pipes. It occurs when the material is exposed to a combination of tensile stress and a corrosive environment. This can cause cracks to develop in the pipe, which can lead to leaks or structural failure. Finally, galvanic corrosion is a common issue when stainless steel pipes are in contact with other metals. When two different types of metals are in contact in the presence of an electrolyte, such as water, a galvanic cell can form and cause corrosion. To prevent this, it is important to use appropriate insulation or isolation techniques when connecting stainless steel pipes to other metals. Overall, while stainless steel is known for its corrosion resistance, it is not completely immune to corrosion. Understanding these common corrosion issues and taking preventive measures can help ensure the longevity and reliability of stainless steel pipes.

Q:What is the difference between 321 and 347 stainless steel pipes?: The composition of their alloys is the main distinction between 321 and 347 stainless steel pipes. Both grades of stainless steel are titanium-stabilized to prevent the formation of harmful chromium carbides when exposed to high temperatures. However, 347 stainless steel contains additional columbium (niobium), which enhances its resistance to intergranular corrosion. This makes 347 stainless steel pipes suitable for applications that involve exposure to high temperatures and corrosive environments, such as in the petrochemical industry or exhaust systems. On the contrary, 321 stainless steel pipes exhibit excellent resistance to oxidation and scaling at elevated temperatures, making them ideal for applications that require continuous exposure to high heat, like in aircraft exhaust systems or furnace parts. Ultimately, the choice between 321 and 347 stainless steel pipes depends on the specific requirements of the application, with 347 offering superior intergranular corrosion resistance and 321 providing better oxidation resistance.

Q:Can stainless steel pipes be used for fire sprinkler systems?: Yes, stainless steel pipes can be used for fire sprinkler systems. Stainless steel is a highly durable and corrosion-resistant material, making it suitable for use in fire protection systems. It can withstand high temperatures and pressure, ensuring the reliability and longevity of the sprinkler system. Additionally, stainless steel pipes have a low thermal expansion coefficient, which reduces the risk of leaks or bursts due to temperature changes. These properties make stainless steel pipes a preferred choice for fire sprinkler systems in both commercial and residential buildings.

Q:Are stainless steel pipes suitable for breweries?: Yes, stainless steel pipes are highly suitable for breweries. Stainless steel is a preferred material for brewing applications due to its numerous beneficial properties. Firstly, stainless steel pipes are corrosion-resistant, which is crucial in a brewery environment where they come into contact with liquids containing acids and other corrosive substances. This ensures that the pipes will not rust or contaminate the beer with unwanted particles. Additionally, stainless steel pipes are highly hygienic. They are easy to clean and sanitize, which is essential in maintaining a high standard of cleanliness and preventing the growth of bacteria or other microorganisms that could spoil the beer. The smooth surface of stainless steel pipes also prevents the accumulation of residue or impurities, further enhancing the cleanliness of the brewing process. Furthermore, stainless steel pipes have excellent temperature resistance. They can withstand the high temperatures required for various brewing processes, such as boiling or sterilization, without deforming or losing their properties. This durability and heat resistance make stainless steel pipes reliable and long-lasting, ensuring their suitability for breweries. Overall, stainless steel pipes offer a combination of corrosion resistance, hygienic properties, and temperature resistance that make them an ideal choice for breweries. They contribute to the production of high-quality and safe beer, providing a reliable and efficient infrastructure for the brewing process.

Q:Are stainless steel pipes suitable for underground heating systems?: Indeed, underground heating systems can employ stainless steel pipes as they possess suitability. The reason lies in the fact that stainless steel exhibits remarkable resistance against corrosion and can endure the severe circumstances of subterranean burial. Moreover, this material showcases durability, longevity, and the ability to withstand elevated temperatures and pressures, rendering it an exemplary option for heating systems. Not only that, but stainless steel pipes also offer ease in installation and maintenance, thereby furnishing a dependable and effective resolution for underground heating systems.

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