seamless stainless boiler tubes

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Loading Port:: China Main Port

Payment Terms:: TT OR LC

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Specifications

seamless boiler tubes
Material:304L,316L,316Ti,321,317L,310S,347H,904Letc.
Standard: A269, A213,
Cert:ISO

seamless boiler tubes

Material: 304L,316L,316Ti,321,317L,310S,347H,904L, 321 stainless steel welded pipe etc.
Standar duplex steel d: A269, A213, A312 201 stainless steel round tube

1. Material	TP304/304L, 316/316L, 310S, 317L, 321, 347H,etc.
1. Material	S31803, 32750, etc.
2. Sandard	ASTM, ASME, DIN, EN, ISO,JIS, GOST, etc.
3. Type	Seamless
4. Size rangetube	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:What does "stainless steel pipe 201304" mean?: 304 stainless steel is a common stainless steel material, the density of 7.93 g/cm3, the industry is also called 18/8 stainless steel. High temperature resistance of 800 degrees, with good processability, high toughness characteristics, widely used in industry and furniture decoration industry and food and medical industry.

Q:What is the difference between 304J8 and 316J8 stainless steel pipes?: The primary distinction between stainless steel pipes of 304J8 and 316J8 lies in their composition and particular characteristics. 304J8 stainless steel, a widely utilized grade, is renowned for its exceptional resistance to corrosion, particularly in acidic and chloride environments. It boasts a higher chromium content (approximately 18-20%) and nickel content (around 8-10.5%), which contribute to its durability and resistance to corrosion. This grade finds suitability in various applications such as food processing, chemical industries, and architectural structures. On the contrary, 316J8 stainless steel represents an upgraded version of 304J8, featuring additional alloying elements. It possesses a higher chromium content (around 16-18%), nickel content (approximately 10-14%), and molybdenum content (around 2-3%). The introduction of molybdenum enhances its resistance against pitting and crevice corrosion, making it especially appropriate for marine environments or areas exposed to high chloride levels. As a result, 316J8 stainless steel pipes are commonly employed in seawater applications, chemical processing plants, and coastal structures. To summarize, the primary distinction between 304J8 and 316J8 stainless steel pipes is the inclusion of molybdenum in the latter, which imparts superior resistance to pitting and chloride corrosion. While both grades offer excellent corrosion resistance, the choice between them depends on the specific environment and application requirements.

Q:Stainless steel pipe is mainly used in what areas?: According to the use of stainless steel pipe can be divided into oil well pipe (casing, tubing and drill pipe etc.), line pipe, boiler tube, mechanical structure, hydraulic prop pipe pipe, cylinder pipe, geological pipe, chemical pipe (high pressure fertilizer pipe, oil cracking tube) and shipbuilding pipe etc..

Q:Can stainless steel pipes be used in the agriculture industry?: Yes, stainless steel pipes can be used in the agriculture industry. Stainless steel pipes are highly resistant to corrosion, making them ideal for agricultural applications where exposure to moisture, chemicals, and other corrosive substances is common. They are commonly used for irrigation systems, water supply lines, and various agricultural processes that require durable and long-lasting piping solutions. Additionally, stainless steel pipes are hygienic, easy to clean, and can withstand high temperatures, making them suitable for agricultural processes that involve food production and processing.

Q:Are stainless steel pipes suitable for geothermal applications?: Indeed, geothermal applications can benefit greatly from the use of stainless steel pipes. Geothermal systems rely on harnessing the earth's natural geothermal energy, which often necessitates the conveyance of hot fluids like water or steam. When it comes to this purpose, stainless steel pipes are an ideal selection due to their exceptional strength, resistance to corrosion, and ability to endure high temperatures. They possess the capability to withstand the demanding conditions typically found in geothermal environments, including the presence of acidic or corrosive fluids, while exhibiting a lower likelihood of degradation over time compared to other materials. Furthermore, stainless steel pipes boast excellent thermal conductivity, thereby ensuring the efficient transfer of heat in geothermal applications. All in all, one can confidently consider stainless steel pipes as a dependable and long-lasting choice for geothermal systems.

Q:How do you calculate the flow velocity in stainless steel pipes?: The flow velocity in stainless steel pipes can be calculated using the equation Q = A * V, where Q represents the flow rate, A is the cross-sectional area of the pipe, and V is the flow velocity. By rearranging the equation to solve for V, we can calculate the flow velocity as V = Q / A.

Q:Can stainless steel pipes be used in chemical processing plants?: Yes, stainless steel pipes can be used in chemical processing plants. Stainless steel is highly resistant to corrosion, making it suitable for handling various chemicals and corrosive substances commonly found in such plants. Additionally, stainless steel pipes offer high strength, durability, and versatility, making them a preferred choice for conveying fluids and gases in chemical processing industries.

Q:How long do stainless steel pipes last?: Stainless steel pipes are renowned for their durability and long-lasting nature, making them a favored option in a variety of industries and applications. The lifespan of stainless steel pipes can differ depending on various factors, including the quality of the stainless steel used, the installation environment, and the maintenance procedures followed. In general, stainless steel pipes boast an impressive lifespan and can endure for numerous decades. In some cases, with adequate care and maintenance, they can even surpass the century mark. This is attributed to the inherent qualities of stainless steel, such as its resistance to corrosion, high strength, and ability to withstand high temperatures. One of the primary reasons behind the prolonged lifespan of stainless steel pipes is their ability to resist corrosion. Stainless steel contains a minimum of 10.5% chromium, which forms a passive oxide layer on the surface when it comes into contact with oxygen. This oxide layer acts as a protective barrier, preventing further corrosion and ensuring the pipes' longevity. Moreover, stainless steel pipes can endure extreme temperatures, making them suitable for a wide range of applications. They possess excellent heat resistance, enabling them to maintain their structural integrity even under high temperatures. This characteristic contributes to their extended lifespan, as they can withstand thermal stress without deteriorating. Furthermore, the quality of stainless steel utilized in the manufacturing process plays a pivotal role in determining the pipes' lifespan. Higher grades of stainless steel, such as 316 or 304, exhibit greater resistance to corrosion and possess superior mechanical properties. Investing in high-quality stainless steel pipes can significantly extend their lifespan. Lastly, proper maintenance and regular inspections are vital for maximizing the lifespan of stainless steel pipes. Routine inspections aid in identifying any signs of corrosion, damage, or other issues before they escalate and create significant problems. Regular cleaning and maintenance practices, such as the removal of debris or scaling, also contribute to prolonging the pipes' lifespan. In conclusion, stainless steel pipes possess an exceptional lifespan and can endure for numerous decades or even surpass a century. Their resistance to corrosion, high strength, heat resistance, and adherence to proper maintenance practices all contribute to their prolonged lifespan. When considering stainless steel pipes for a specific application, it is crucial to select the appropriate grade and ensure proper care and maintenance to maximize their longevity.

Q:Are stainless steel pipes suitable for chemical storage tanks?: Yes, stainless steel pipes are suitable for chemical storage tanks. Stainless steel is highly resistant to corrosion, making it an ideal choice for storing and transporting chemicals. It can withstand exposure to various chemicals, acids, and alkalis without deteriorating or contaminating the stored substances. Additionally, stainless steel pipes have high tensile strength and can withstand high pressure, making them a reliable option for chemical storage tanks that require durability and safety.

Q:What is the difference between seamless and seamless redrawn stainless steel pipes?: Seamless stainless steel pipes and seamless redrawn stainless steel pipes are both types of pipes made from stainless steel, but they differ in their manufacturing processes and properties. Seamless stainless steel pipes are produced by piercing a solid billet of stainless steel and then rolling it into a seamless tube using various methods, such as hot rolling, cold rolling, or extrusion. This process does not involve any welding or joining of separate pieces, resulting in a continuous, seamless pipe. Seamless pipes are known for their superior strength, durability, and resistance to corrosion. On the other hand, seamless redrawn stainless steel pipes are manufactured by taking a seamless pipe and subjecting it to a secondary process called cold drawing or cold rolling. In this process, the pipe is pulled through a die or a series of dies to reduce its diameter and improve its surface finish. This cold drawing process enhances the dimensional accuracy, surface finish, and mechanical properties of the pipe. The main difference between seamless and seamless redrawn stainless steel pipes lies in their manufacturing processes and resulting properties. Seamless pipes are generally considered to have higher strength and corrosion resistance than redrawn pipes due to their uninterrupted grain structure and absence of welds. They are commonly used in applications that require high pressure, temperature, or corrosive resistance, such as oil and gas pipelines, chemical processing plants, and power generation facilities. Seamless redrawn stainless steel pipes, although slightly inferior in strength and corrosion resistance compared to seamless pipes, offer improved dimensional accuracy, surface finish, and tight tolerances. They are often used in industries like automotive, aerospace, and pharmaceuticals, where precise dimensions and excellent surface quality are critical. In summary, while both seamless and seamless redrawn stainless steel pipes are made from stainless steel and offer various advantages, the choice between them depends on the specific requirements of the application, such as the level of strength, corrosion resistance, dimensional accuracy, and surface finish needed.

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