Stainless Steel Welded Pipe ASTM A249/A269; GB/T24593
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1、Structure of Stainless Steel Welded Pipe ASTM A249/A269; GB/T24593：
Stainless steel Welded pipe is used in applications that require the pipe to have high anti-corrosive properties. Compared to steel and cast iron pipes, stainless steels are more flexible, durable and have a higher strength. They are very resistant to erosion-corrosion and can be formed and welded into various shapes and sizes. It is easily connected with various other piping systems and materials and is designed to withstand long life cycles.2、Main Features of Stainless Steel Welded Pipe ASTM A249/A269; GB/T24593：
• High manufacturing accuracy
• High strength
• Small inertia resistance
• Good visual effect
•Reasonable price
3、 Stainless Steel Welded Pipe ASTM A249/A269; GB/T24593 images：
4、 Stainless Steel Welded Pipe ASTM A249/A269; GB/T24593 Specification：
Size：
| DN | OD | WT | ||||
| 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' | 508.0 | 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' | 762.0 | 6.35 | 7.92 | 12.7 | 17.48 |
| 800 | 32' | 812.8 | 7.90 | 12.7 | 17.48 | |
| 850 | 34 | 863.6 | 7.92 | 12.7 | 17.48 | |
| 900 | 36' | 914.4 | 7.92 | 12.7 | 19.05 | |
| 1000 | 40' | 1016.0 | 9.53 | |||
| OD(mm) | WT(mm) | |||||||||||||
| 0.5 | 0.6 | 0.7 | 0.8 | 0.9 | 1 | 1.2 | 1.5 | 2 | 2.5 | 3 | 4 | 5 | ||
| 9.5 | ||||||||||||||
| 12 | ||||||||||||||
| 1/2' | 12.7 | |||||||||||||
| 13 | ||||||||||||||
| 14 | ||||||||||||||
| 5/8' | 15.9 | |||||||||||||
| 3/4' | 19.1 | |||||||||||||
| 7/8' | 22.2 | |||||||||||||
| 1' | 25.4 | |||||||||||||
| 1-1/8' | 28.6 | |||||||||||||
| 1-1/4' | 31.8 | |||||||||||||
| 1-1/2' | 38.1 | |||||||||||||
| 40 | ||||||||||||||
| 45 | ||||||||||||||
| 2' | 50.8 | |||||||||||||
| 52 | ||||||||||||||
| 2-1/4' | 57.15 | |||||||||||||
| 2-3/8' | 60.3 | |||||||||||||
| 2-1/2' | 63.5 | |||||||||||||
| 70 | ||||||||||||||
| 3' | 76.2 | |||||||||||||
| 85 | ||||||||||||||
| 3-1/2' | 88.9 | |||||||||||||
| 4' | 101.6 | |||||||||||||
| 4-1/8' | 104.78 | |||||||||||||
| 4-1/4' | 107.95 | |||||||||||||
| 4-1/2' | 114.3 | |||||||||||||
| 5-1/4' | 133.35 | |||||||||||||
| 6-1/4' | 158.75 | |||||||||||||
| 8-5/8' | 219.08 | |||||||||||||
ASTM A249 tolerance：
| OD | WT | Length | |
| ＜25.40mm | ±0.10mm | ±10.00% | OD＜50.8mm +3.0mm -0mm OD≥50.8mm +5.0 -0mm |
| ≥25.4mm~38.1mm | ±0.15mm | ||
| ≥38.1mm~50.8mm | ±0.20mm | ||
| ≥50.8mm~63.5mm | ±0.25mm | ||
| ≥63.5mm~76.2mm | ±0.30mm | ||
| ≥76.2mm~101.6mm | ±0.38mm | ||
| ≥101.6mm~190.5mm | +0.38mm -0.64mm | ||
| ≥190.5mm~228.6mm | +0.38mm -1.14mm | ||
ASTM A269 tolerance：
| OD | WT | Length | |
| ＜38.1mm | ±0.13mm | OD＜12.7mm ±15% OD≥12.7mm ±10% | OD＜38.1mm +3.20mm -0mm OD≥38.1mm +4.80 -0mm |
| ≥38.1mm~88.9mm | ±0.25mm | ||
| ≥88.9mm~139.7mm | ±0.38mm | ||
| ≥139.7mm~203.7mm | ±0.76mm | ||
| ≥203.7mm~304.8mm | ±1.01mm | ||
| ≥304.8mm~355.6mm | ±1.26mm | ||
5、FAQ of Stainless Steel Welded Pipe ASTM A249/A269; GB/T24593：
①How is the quality of your products?
Our products are manufactured strictly according to national and internaional standard, and we take a test on every pipe before delivered out. If you want see our quality certifications and all kinds of testing report, please just ask us for it.
Guaranteed: If products’ quality don’t accord to discription as we give or the promise before you place order, we promise 100% refund.
②How about price?
Yes, we are factory and be able to give you lowest price below market one, and we have a policy that “ for saving time and absolutely honest business attitude, we quote as lowest as possible for any customer, and discount can be given according to quantity”,if you like bargain and factory price is not low enough as you think, just don’t waste your time.Please trust the quotation we would give you, it is professional one.
③Why should you chose us?
Chose happens because of quality, then price, We can give you both.Additionally, we can also offer professional products inquiry, products knowledge train(for agents), smooth goods delivery, exellent customer solution proposals.Our service formula: good quality+good price+good service=customer’s trust
SGS test is available, customer inspection before shipping is welcome, third party inspection is no problem.
Any question, pls feel free to contact us !
- Q: Can stainless steel pipes be used for chemical pumps?
- Yes, stainless steel pipes can be used for chemical pumps. Stainless steel is known for its corrosion resistance, making it a suitable material for handling various chemicals. It can withstand the corrosive nature of many chemicals and prevent contamination of the pumped fluids. Additionally, stainless steel pipes offer good mechanical strength and durability, making them ideal for use in chemical pumps that require reliability and long-term performance. However, it is important to consider the specific requirements of the chemicals being pumped and consult with experts or manufacturers to ensure that the stainless steel chosen is compatible with the particular chemicals and operating conditions.
- Q: What is the difference between seamless and hot-expanded stainless steel pipes?
- Seamless and hot-expanded stainless steel pipes are two different types of manufacturing processes for producing stainless steel pipes. Seamless stainless steel pipes are made by piercing a solid billet of stainless steel and then rolling it into a pipe shape. This process does not involve any welding or joining of separate pieces, resulting in a seamless pipe. Seamless pipes are known for their uniformity and strength, as there are no weak points or potential leak paths in the pipe. They are generally more expensive to produce and are used in applications where high corrosion resistance and pressure handling are required, such as in the oil and gas industry or in high-pressure boilers. On the other hand, hot-expanded stainless steel pipes are made by heating a stainless steel pipe and expanding it to a larger diameter using a mandrel inside the pipe. This process creates a larger diameter pipe with a uniform wall thickness. Hot expansion is typically used to produce larger diameter pipes that are required for specific applications. The hot expansion process can improve the mechanical properties of the pipe, such as increased tensile strength and improved resistance to corrosion. These pipes are commonly used in industries such as petrochemical, power generation, and construction. In summary, the main difference between seamless and hot-expanded stainless steel pipes lies in their manufacturing processes and the resulting properties of the pipes. Seamless pipes are made by rolling a solid billet, while hot-expanded pipes are created by heating and expanding an existing pipe. Seamless pipes are known for their strength and uniformity, while hot-expanded pipes are often used for larger diameter applications and can have improved mechanical properties.
- Q: What is the difference between ferritic and austenitic stainless steel pipes?
- Ferritic and austenitic stainless steel pipes differ primarily in their microstructure and composition, resulting in distinct properties and applications. Ferritic stainless steel pipes are characterized by a ferrite microstructure, which is a body-centered cubic crystal structure. They contain high levels of chromium (typically around 10-30%) and low levels of carbon. Due to their low carbon content, ferritic stainless steel pipes have excellent corrosion resistance but are prone to sensitization and intergranular corrosion at high temperatures. They also possess good durability, heat resistance, and magnetic properties, making them suitable for applications such as automotive exhaust systems, architectural structures, and heat exchangers. On the other hand, austenitic stainless steel pipes have an austenite microstructure, which is a face-centered cubic crystal structure. They contain high levels of chromium (typically around 16-26%) and nickel (usually 6-22%), along with low carbon content. Austenitic stainless steel pipes exhibit superior corrosion resistance, even in highly aggressive environments. Their non-magnetic nature, excellent ductility, and high toughness make them ideal for various industries, including chemical processing, food and beverage, pharmaceuticals, and medical equipment manufacturing. Austenitic stainless steel pipes are also less prone to sensitization and intergranular corrosion compared to ferritic stainless steel pipes. In summary, ferritic stainless steel pipes have a ferrite microstructure, good corrosion resistance, and magnetic properties, while austenitic stainless steel pipes have an austenite microstructure, superior corrosion resistance, non-magnetic properties, and enhanced mechanical properties. The choice between ferritic and austenitic stainless steel pipes depends on the specific application, desired properties, and environmental conditions.
- Q: Can stainless steel pipes be used for solar thermal systems?
- Indeed, solar thermal systems can utilize stainless steel pipes. Because of their ability to resist corrosion, endure high temperatures, and exhibit durability, stainless steel pipes are commonly opted for as piping in solar thermal systems. These systems harness the sun's heat to produce hot water or offer space heating, and stainless steel pipes are capable of withstanding the immense pressures and elevated temperatures inherent in such systems. Furthermore, the exceptional longevity of stainless steel pipes renders them a dependable choice for solar thermal applications.
- Q: What is the difference between Type 304 and Type 316 stainless steel pipes?
- Type 304 and Type 316 stainless steel pipes find wide application in diverse industries, each possessing distinct composition and physical characteristics. Type 304 stainless steel, a versatile and commonly utilized grade of stainless steel pipe, boasts a higher proportion of chromium and nickel compared to Type 316. Consequently, it exhibits exceptional resistance to corrosion and durability. Type 304 proves ideal for situations where exposure to corrosive substances remains minimal, such as indoor settings or general-purpose utilization. In contrast, Type 316 stainless steel pipes are renowned for their superior corrosion resistance, particularly in more hostile environments. They contain a higher proportion of molybdenum, which bolsters their ability to withstand pitting and crevice corrosion caused by chloride solutions, like seawater or saltwater environments. This renders Type 316 stainless steel pipes suitable for marine applications, chemical processing plants, and situations where exposure to harsh chemicals or high temperatures is inevitable. Regarding physical properties, Type 316 stainless steel pipes exhibit greater tensile strength and yield strength when compared to Type 304. Consequently, they can endure higher pressures and display enhanced resistance against deformation or cracking under stress. In summary, the primary distinction between Type 304 and Type 316 stainless steel pipes lies in their corrosion resistance and physical properties. Type 304 proves suitable for general-purpose use and indoor environments, while Type 316 is preferred for applications necessitating superior corrosion resistance and strength, particularly in aggressive or high-temperature conditions.
- Q: Are stainless steel pipes suitable for wastewater treatment ponds?
- Stainless steel pipes are indeed appropriate for wastewater treatment ponds. Due to their exceptional resistance to corrosion, stainless steel proves to be an ideal material for managing wastewater, which can be incredibly corrosive. The robustness and sturdiness of stainless steel pipes enable them to endure the severe conditions and chemicals present in wastewater treatment ponds. Furthermore, stainless steel pipes are effortless to clean and upkeep, guaranteeing the efficacy and efficiency of wastewater treatment procedures. All things considered, stainless steel pipes emerge as a dependable and enduring alternative for wastewater treatment ponds.
- Q: What is the difference between seamless and EFW stainless steel pipes?
- Seamless and EFW stainless steel pipes are distinct types of stainless steel pipes with unique characteristics and manufacturing processes. To begin with, seamless stainless steel pipes are produced without any welding seams or joints. They are formed from a solid cylindrical billet, which is heated and stretched over a mandrel to create a hollow tube. This method guarantees consistent wall thickness and a smooth interior surface, making them ideal for applications requiring high pressure, high temperature, or corrosive environments. Due to their seamless construction, these pipes offer enhanced strength and durability. On the contrary, EFW stainless steel pipes are made by using high-frequency electrical current and pressure to weld the edges of two stainless steel sheets or plates together. This fusion welding process results in a continuous seam running along the length of the pipe. EFW pipes are generally used for lower-pressure and lower-temperature applications, such as conveying fluids or gases in industrial settings. One notable difference between seamless and EFW stainless steel pipes lies in their manufacturing complexity. Seamless pipes necessitate more intricate and precise manufacturing techniques, leading to higher production costs compared to EFW pipes. Additionally, the seamless process allows for a wider range of sizes and thicknesses, whereas EFW pipes are typically limited in their size options. Another distinction lies in the availability of grades and alloys. Seamless stainless steel pipes come in a wide range of grades and alloys, providing greater flexibility for specific applications. In contrast, EFW pipes have a more limited selection of available grades and alloys. Regarding mechanical properties, seamless stainless steel pipes generally exhibit superior strength and corrosion resistance compared to EFW pipes. The absence of welds or joints in seamless pipes reduces the risk of weak points that could be susceptible to corrosion or failure. In conclusion, seamless stainless steel pipes are produced without welding seams, offering improved strength, durability, and corrosion resistance. They are suitable for high-pressure, high-temperature, or corrosive applications. Conversely, EFW stainless steel pipes are created by fusing two stainless steel sheets or plates together, making them more suitable for lower-pressure and lower-temperature applications.
- Q: What is the maximum length of a stainless steel pipe that can be manufactured?
- The maximum length of a stainless steel pipe that can be manufactured depends on various factors such as the manufacturing process, equipment capabilities, and logistical constraints. Generally, stainless steel pipes can be manufactured in lengths ranging from a few meters up to several hundred meters, depending on these factors.
- Q: Stainless steel tube, also known as why tube?
- It can be divided into round tube and special-shaped tube according to the cross sectional shapeThe special-shaped tube has a rectangular tube, a rhombus tube, an elliptical tube, six square tubes, eight square tubes, various cross section asymmetric pipes, etc.
- Q: What is the difference between satin and brushed finishes in stainless steel pipes?
- Stainless steel pipes can undergo two common types of surface treatments: satin and brushed finishes. These finishes enhance the pipes' appearance and provide some level of corrosion resistance, but they have distinct differences. To achieve a satin finish, a smooth, glossy surface is created using a fine abrasive material. This finish is characterized by its reflective and shiny appearance, similar to satin fabric. It gives the stainless steel pipe a sleek and polished look, making it suitable for applications where aesthetics are important. Satin finishes are commonly used in architectural and decorative applications like handrails, furniture, and kitchen appliances. On the other hand, a brushed finish is achieved by creating a pattern of fine lines on the surface using a wire brush or abrasive pad. This finish has a matte appearance with visible parallel lines running across the surface. Brushed finishes are less reflective than satin finishes and offer a more subdued, industrial look. They are commonly used in applications where durability and resistance to visible wear and tear are important, such as machinery, automotive components, and commercial kitchen equipment. While both satin and brushed finishes provide some level of corrosion resistance, it's worth noting that the surface texture of brushed finishes makes them slightly more resistant to visible scratches and scuffs compared to satin finishes. However, it's important to remember that the overall corrosion resistance of stainless steel is primarily determined by its alloy composition, not the surface finish. In summary, the main difference between satin and brushed finishes in stainless steel pipes lies in their appearance and intended use. Satin finishes offer a reflective and polished look suitable for decorative applications, while brushed finishes provide a more matte and industrial appearance for applications that require durability and resistance to visible wear and tear.
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Stainless Steel Welded Pipe ASTM A249/A269; GB/T24593
- Ref Price:
-
- Loading Port:
- Ningbo
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 5000 m.t./month
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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