Welded and seamless 201 202 304 304L 316 316L stainless steel pipe

Welded and seamless 201 202 304 304L 316 316L stainless steel pipe

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Loading Port:: Shanghai

Payment Terms:: TT OR LC

Min Order Qty:: 5 m.t.

Supply Capability:: 2500 m.t./month

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Material	304:0cr18ni9, 0cr17ni8 201:1cr17mn6ni5n,1cr13mn9ni1n 316:0cr17ni12 or as customer’s request
Size(round pipe)	9.5, 12.7, 15.9, 17, 18, 19.1, 20, 21, 22.2, 23, 25.4, 28, 318, 35, 60, 63.5, 73, 76.2, 88.9, 101.6, 114.3, 127, 133, 59, 168, 219 mm or customized
Size (square pipe)	10×10,12×12,18×18,23×23,38×38,50×50,70×70,100×100,20×10,23×10,24×12,25×13,36×23, 40×20,50×20,60×15,75×45,80×60,95×45,100×60,150×100 mm or customized
Size (oval pipe)	30×15,80×40 mm os customized
Thickness	0.24-3 mm
Length	6m or according to customer’s request
Outer diameter	6.35-219mm
Tolerance	Outer diameter :±0.2mm
Thickness :±0.02mm
Length :±0.5mm
Process method	Code drawn, annealed with nitrogen protection, ultrasonic,automatic shape, polished
Finishing	A: sanded B: 400#-600# mirror C: hairline brushed D: TIN titanlum E : HL brushed & mirror (two kinds of finishing for one pipe)

Chemical Composition
Material	C	Si	Mn	P	S	Cr	Ni
201	≤0.12	≤0.75	9.5-12.5	≤0.045	≤0.03	13-16	0.8-1.5
304	≤0.08	≤0.75	≤2.0	≤0.045	≤0.03	18-19	8-10
316	≤0.08	≤1.00	≤2.0	≤0.035	≤0.03	10-14	16.0-18.5
430	≤0.12	≤0.75	≤2.0	≤0.04	≤0.03	16-18	≤0.6

Company Information

CNBM International Corporation is the most important trading platform of CNBM group.

Whith its advantages, CNBM International are mainly concentrate on Cement, Glass, Iron and Steel, Ceramics industries and devotes herself for supplying high qulity series of refractories as well as technical consultancies and logistics solutions.

WORK SHOP

Client

Export Markets Our target market is the international market. Every year we export most of products to countries like India, Pakistan, South Korea, Brazil, Australia, South Africa, Spain, Sri Lanka, Taiwan, Hong Kong, etc.

F A Q

FAQ

1, Your advantages?

professional products inquiry, products knowledge train (for agents), smooth goods delivery, excellent customer solution proposale

2, Test & Certificate?

SGS test is available, customer inspection before shipping is welcome, third party inspection is no problem

3, Factory or Trading Company?

CNBM is a trading company but we have so many protocol factories and CNBM works as a trading department of these factories. Also CNBM is the holding company of many factories.

4, Payment Terms?

30% TT as deposit and 70% before delivery.

Irrevocable L/C at sight.

Q:Are stainless steel pipes suitable for oil refinery applications?: Yes, stainless steel pipes are highly suitable for oil refinery applications. They offer excellent resistance to corrosion, high temperatures, and aggressive chemicals commonly found in refineries. Stainless steel pipes also have high strength and durability, making them ideal for transporting and storing various petroleum products.

Q:Can stainless steel pipes be wrapped with tape?: Yes, stainless steel pipes can be wrapped with tape. However, it is important to use the appropriate type of tape designed specifically for stainless steel. This is because stainless steel pipes are often used in industrial and high-temperature applications, and ordinary tapes may not be able to withstand the extreme conditions. Stainless steel pipe tapes are typically made of materials like stainless steel foil or aluminum foil with a heat-resistant adhesive to ensure long-lasting durability and resistance to corrosion. These tapes can be used for various purposes such as insulation, sealing, or protection against abrasion. It is always recommended to consult the manufacturer's guidelines or seek professional advice before applying any tape to stainless steel pipes to ensure proper installation and avoid any potential issues.

Q:What are the different types of fittings used with stainless steel pipes?: Some of the different types of fittings used with stainless steel pipes include couplings, elbows, tees, reducers, flanges, and valves. These fittings are designed to connect, redirect, or control the flow of fluids or gases in a stainless steel piping system.

Q:Is stainless steel flexible enough for plumbing applications?: Indeed, stainless steel proves itself to be sufficiently flexible for plumbing purposes. Renowned for their robustness and sturdiness, stainless steel pipes and fittings also possess a certain level of adaptability. This adaptability facilitates effortless installation in a wide range of plumbing systems, even those with intricate designs or confined spaces. Stainless steel pipes can be manipulated and molded without compromising their structural integrity, rendering them suitable for both residential and commercial plumbing ventures. Furthermore, stainless steel exhibits remarkable resistance to corrosion, a vital quality in plumbing scenarios where exposure to water and other corrosive substances is common. Overall, the combination of strength, durability, and flexibility that stainless steel offers makes it an excellent option for plumbing applications.

Q:Are stainless steel pipes suitable for mining industries?: Yes, stainless steel pipes are widely used and suitable for the mining industry. Stainless steel is known for its excellent corrosion resistance, making it ideal for applications in harsh and corrosive environments such as mines. This resistance to corrosion is particularly important in the mining industry, where pipes are exposed to various chemicals, water, and minerals that can accelerate the corrosion process. Additionally, stainless steel pipes are highly durable and can withstand extreme temperatures, making them suitable for the demanding conditions encountered in mining operations. Furthermore, stainless steel pipes offer high strength and reliability, ensuring the safe and efficient transportation of fluids, gases, and slurries throughout the mining process. Overall, stainless steel pipes are a preferred choice in the mining industry due to their corrosion resistance, durability, and strength, making them a reliable and long-lasting option for mining operations.

Q:What is the difference between 904L and 2205 stainless steel pipes?: 904L and 2205 stainless steel pipes differ in various aspects. Firstly, their composition varies significantly. 904L stainless steel is a high alloy austenitic stainless steel with elevated levels of chromium, nickel, and molybdenum. It also has a low carbon content, granting it remarkable resistance to corrosion and pitting. Conversely, 2205 stainless steel is a duplex stainless steel that combines austenite and ferrite phases. It contains lower amounts of chromium and nickel compared to 904L, but boasts higher levels of molybdenum and nitrogen. Secondly, the mechanical properties of these steels differ. 904L stainless steel exhibits exceptional toughness and high strength, making it suitable for applications in aggressive environments such as chemical processing plants and offshore oil and gas platforms. Conversely, 2205 stainless steel possesses good overall mechanical properties, including high tensile and yield strength. It is commonly utilized in industries like marine, paper, and pulp, wherein resistance to stress corrosion cracking is crucial. Additionally, their resistance to corrosion separates them further. Although both steels are corrosion-resistant, 904L stainless steel showcases remarkable resistance to a wide range of corrosive environments, including sulfuric acid, hydrochloric acid, and saltwater. This makes it an ideal choice for industries that demand extreme corrosion resistance. On the other hand, 2205 stainless steel, while not as corrosion-resistant as 904L, still offers good resistance to many corrosive substances, rendering it suitable for various applications. Cost constitutes another distinguishing factor between these steels. Due to its high alloy content and superior properties, 904L stainless steel generally carries a higher price tag than 2205 stainless steel. Therefore, the selection between the two will depend on the specific requirements of the application and the allocated budget. In conclusion, the main disparities between 904L and 2205 stainless steel pipes emerge in their composition, mechanical properties, corrosion resistance, and cost. Comprehending these distinctions aids in selecting the appropriate stainless steel pipe for a given application.

Q:Can stainless steel pipes be surface treated?: Yes, stainless steel pipes can be surface treated. Surface treatment is often done to improve the aesthetics, corrosion resistance, and durability of stainless steel pipes. Common surface treatment methods for stainless steel pipes include passivation, electropolishing, pickling, and applying various coatings. Passivation involves the removal of impurities from the surface of the stainless steel, creating a protective oxide layer that enhances corrosion resistance. Electropolishing is an electrochemical process that smooths and polishes the surface of stainless steel pipes, improving their appearance and reducing the likelihood of bacterial growth. Pickling involves the removal of scale and oxide layers from the surface by using acid solutions. Coatings such as powder coating, paint, or plating can also be applied to stainless steel pipes to provide additional protection against corrosion, enhance appearance, or meet specific requirements. Overall, surface treatment options for stainless steel pipes are diverse and can be tailored to meet the desired functional and aesthetic needs.

Q:Can stainless steel pipes be passivated?: Stainless steel pipes have the ability to undergo passivation, a chemical procedure employed for eliminating free iron and other pollutants from the surface. This procedure holds great significance as it enhances the corrosion resistance of the stainless steel pipes and enhances their overall performance. The common approach to passivation involves either immersing the stainless steel pipes in an acidic solution or applying a chemical solution directly to the surface. The solution effectively eliminates any impurities or contaminants, leaving behind a pristine and corrosion-resistant layer. Passivation finds widespread usage in industries like food and beverage, pharmaceuticals, and oil and gas, where stainless steel pipes are extensively utilized.

Q:What are the different grades of stainless steel pipes?: There is a variety of stainless steel pipe grades available, each possessing its own distinct properties and applications. The most commonly utilized grades are as follows: 1. Grade 304: This stainless steel grade is widely employed in pipe manufacturing due to its exceptional corrosion resistance, heat resistance, and high strength. It is suitable for a diverse range of uses, including water pipes, food processing equipment, and architectural structures. 2. Grade 316: Renowned for its superior corrosion resistance, especially in environments with high chloride content, Grade 316 pipes are frequently utilized in marine applications, chemical processing plants, and medical equipment where protection against pitting and crevice corrosion is vital. 3. Grade 321: This grade is fortified with titanium, rendering it resistant to intergranular corrosion after exposure to elevated temperatures. Grade 321 pipes are commonly employed in applications involving high temperatures, such as exhaust systems, furnace components, and heat exchangers. 4. Grade 409: Specifically engineered for high-temperature applications like automotive exhaust systems, Grade 409 offers excellent heat resistance and a high degree of resistance to corrosion and oxidation. 5. Grade 904L: A highly alloyed austenitic stainless steel grade, Grade 904L displays exceptional resistance to a wide array of corrosive environments, including sulfuric acid, phosphoric acid, and chloride solutions. Grade 904L pipes are frequently used in chemical processing plants, the pulp and paper industry, and desalination plants. To ensure optimal performance and longevity, it is crucial to select the appropriate grade of stainless steel pipe based on the specific requirements of your application.

Q:Can stainless steel pipes be used for desalination systems?: Yes, stainless steel pipes can be used for desalination systems. Stainless steel is highly resistant to corrosion and can withstand the harsh conditions involved in desalination processes, such as high salinity and the presence of chemicals. Its durability and resistance to corrosion make it an ideal material choice for transporting and distributing desalinated water.

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