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: How thick is the 3 stainless steel tube?
- Refers to the stainless steel tube with a wall thickness of 3 mm.
- Q: What is the cost of stainless steel pipes compared to other materials?
- The price of stainless steel pipes can vary depending on several factors, such as the type of stainless steel used, the pipes' size and thickness, and the current market conditions. Generally, stainless steel pipes are more expensive than pipes made from carbon steel or PVC. Industries that require corrosion resistance, durability, and strength often prefer stainless steel due to its properties. Examples of such industries include oil and gas, chemical processing, and food processing. Despite the higher cost, the long-term benefits and lower maintenance requirements of stainless steel pipes justify their expense. Furthermore, stainless steel pipes offer advantages in terms of cleanliness and hygiene. They are easy to clean, non-porous, and resistant to bacteria growth. This makes them suitable for use in the pharmaceutical, medical, and food industries. When comparing the cost of stainless steel pipes to other materials, it is crucial to consider the specific requirements of the project or application. While stainless steel pipes may have a higher upfront cost, their superior performance, longevity, and resistance to corrosion often result in long-term cost savings.
- Q: How do you prevent pressure loss in stainless steel pipes?
- One way to prevent pressure loss in stainless steel pipes is to ensure proper installation and maintenance. This includes using high-quality fittings and connectors, following recommended guidelines for pipe sizing and support, and regularly inspecting and repairing any potential leaks or damages. Additionally, employing efficient flow control mechanisms such as valves and regulators can help minimize pressure loss in stainless steel pipes.
- Q: How do you calculate the maximum allowable span for stainless steel pipes?
- To calculate the maximum allowable span for stainless steel pipes, you need to consider several factors, including the pipe's material properties, dimensions, and the applied load. First, determine the material properties of the stainless steel pipe, such as its yield strength, ultimate tensile strength, and the modulus of elasticity. These values can usually be obtained from the manufacturer's specifications or engineering handbooks. Next, identify the dimensions of the pipe, particularly its outside diameter and wall thickness. These measurements are crucial in determining the pipe's moment of inertia, which affects its ability to resist bending. Once you have these values, you can apply the appropriate formula or calculation method based on the type of load the pipe will be subjected to. There are different calculations for uniformly distributed loads, concentrated loads, or a combination of both. For example, if the load is uniformly distributed along the span, you can use the formula for maximum deflection or sag, which takes into account the pipe's modulus of elasticity, moment of inertia, applied load, and the span length. However, if the load is concentrated at specific points, you may need to consider the maximum bending stress. This calculation involves determining the bending moment, which depends on the load, span length, and the pipe's moment of inertia. You can then compare this bending stress with the pipe's yield strength to ensure it does not exceed the allowable limit. It is important to note that different codes and standards may provide specific guidelines for calculating the maximum allowable span for stainless steel pipes. Therefore, it is advisable to consult relevant industry standards or consult with a qualified engineer to ensure accurate calculations and compliance with safety regulations.
- Q: How do stainless steel pipes compare to aluminum pipes?
- Stainless steel pipes have superior durability and corrosion resistance compared to aluminum pipes. Additionally, stainless steel pipes can withstand higher temperatures and pressures, making them suitable for a wider range of applications. However, aluminum pipes are lighter in weight and more cost-effective, making them a popular choice for certain industries. Ultimately, the choice between stainless steel and aluminum pipes depends on specific requirements and budget constraints.
- Q: What is the difference between 304LN and 316LN stainless steel pipes?
- The composition and inclusion of certain elements distinguish 304LN and 316LN stainless steel pipes from each other. 304LN stainless steel is an austenitic type that contains a low amount of carbon and nitrogen. Its purpose is to provide better strength and corrosion resistance compared to standard 304 stainless steel. The addition of nitrogen encourages the formation of a stable austenite phase, which improves the mechanical properties of the material. On the contrary, 316LN stainless steel is also an austenitic variety but has molybdenum and a higher nickel content compared to 304LN. The inclusion of molybdenum increases the material's resistance to pitting corrosion caused by chlorides and other aggressive environments. The higher nickel content further enhances the corrosion resistance, making it suitable for more demanding applications, such as marine environments or chemical processing. In conclusion, both 304LN and 316LN stainless steel pipes are austenitic and offer good corrosion resistance. However, the addition of molybdenum and higher nickel content in 316LN makes it more suitable for applications requiring enhanced corrosion resistance, especially in aggressive environments.
- Q: What is the difference between Sch 40 and Sch 80 stainless steel pipes?
- Sch 40 and Sch 80 stainless steel pipes differ in their wall thicknesses. Sch 40 denotes a pipe with a "Schedule 40" wall thickness, while Sch 80 refers to a pipe with a "Schedule 80" wall thickness. The schedule number signifies the approximate wall thickness of the pipe, with higher numbers indicating thicker walls. When it comes to stainless steel pipes, Sch 80 has a greater wall thickness compared to Sch 40. The variation in wall thickness leads to disparities in pressure rating and strength. Sch 80 stainless steel pipes are engineered to withstand higher pressure and are generally employed in applications where the pipe must endure heightened levels of stress or extreme conditions. Conversely, Sch 40 stainless steel pipes are typically used in less demanding situations where lower pressure ratings are acceptable. Furthermore, the increased wall thickness of Sch 80 pipes results in a smaller internal diameter in contrast to Sch 40 pipes. This reduction in internal diameter can affect the flow rate of fluids or gases through the pipe, so it is crucial to take this factor into account when selecting the appropriate pipe for a specific application. To summarize, the primary distinction between Sch 40 and Sch 80 stainless steel pipes lies in their wall thickness. Sch 80 pipes are thicker and capable of handling higher pressure and stress levels.
- Q: How do you prevent contamination in stainless steel pipes?
- In order to prevent contamination in stainless steel pipes, it is of utmost importance to adhere to several critical steps. First and foremost, it is imperative to regularly clean and maintain the pipes. This involves utilizing suitable cleaning agents and methods to eliminate any dirt, debris, or potential contaminants from the pipes. It is crucial to avoid the use of abrasive materials or harsh chemicals that have the potential to harm the surface of the stainless steel. Secondly, it is vital to guarantee the proper installation and sealing of the pipes. Any gaps or leaks in the connections can permit contaminants to enter the system. It is advisable to employ top-quality fittings and seals to ensure a secure and tight connection. Thirdly, the implementation of a comprehensive filtration system can be effective in preventing contamination. Filters have the capacity to eliminate impurities like sediments, particles, and other contaminants that might be present in the fluid or gas flowing through the pipes. It is important to regularly inspect and replace these filters in order to maintain their efficiency. Moreover, regular inspection and monitoring of the pipes are essential. This entails checking for signs of corrosion, rust, or any other damage that could compromise the integrity of the pipes. Addressing any arising issues promptly can prevent contamination and prolong the lifespan of the stainless steel pipes. Lastly, establishing and adhering to proper hygiene practices is crucial. This involves implementing procedures to minimize the introduction of contaminants during maintenance or repairs. It is also important to provide personnel with training on proper handling techniques and emphasize the significance of maintaining cleanliness and hygiene when working with stainless steel pipes. By following these preventive measures, it is possible to minimize the risk of contamination in stainless steel pipes, thereby ensuring the integrity and longevity of the system.
- Q: How about stainless steel 2520 and 316?
- 2520 stainless steel (310S) austenitic chromium nickel stainless steel has good oxidation resistance, corrosion resistance, because of higher content of chromium and nickel content, which has high temperature creep strength, can continuously work under high temperature, good heat resistance. For Ni (Ni), chromium (Cr) content is high, with good oxidation resistance, corrosion resistance, acid and salt, high temperature performance, high temperature resistant steel dedicated to the manufacture of electric furnace tube and so on, increase the amount of carbon austenitic stainless steel, due to the solid solution strengthening effect to the strength improved, chemical composition characteristics of austenitic stainless steel is chrome, nickel based addition of molybdenum and tungsten, niobium and titanium elements, as its face centered cubic structure, and strength and high creep strength at high temperature.
- Q: Are stainless steel pipes resistant to acidic solutions?
- Generally, stainless steel pipes exhibit resistance to acidic solutions due to the high chromium content. This chromium forms a protective layer that shields the metal from corrosion, preventing any harm caused by the acid. Nevertheless, the level of resistance can differ among various grades of stainless steel. Certain grades offer greater acid resistance compared to others. To determine the most appropriate grade for a specific application involving acidic solutions, consulting the manufacturer or a corrosion specialist is essential.
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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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