Large Diameter Stainless Steel Pipe for wholesales

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Min Order Qty:
35 m.t.
Supply Capability:
5000 m.t./month
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Item specifice

Hot Rolled,Cold Rolled,Cold Drawn,ERW,Forged,Saw,Extruded,EFW,Spring
U Channel,Square,C Channel,Hexagonal,Round
Surface Treatment:
Galvanized,Coated,Copper Coated,Color Coated,Oiled,Dry,Chromed Passivation,Polished,Bright,Black,PVDF Coated
Steel Grade:
Q195,Q215,Q235,Q215B,Q235B,RHB335,HRB400,200 Series,300 Series,400 Series,600 Series,SS400-SS490,10#,20#,A53(A,B)
Net Weight:

Structure : 

Seamless pipe is formed by drawing a solid billet over a piercing rod to create the hollow shell. As the manufacturing process does not include any welding, seamless pipes are perceived to be stronger and more reliable. Historically seamless pipe was regarded as withstanding pressure better than other types, and was often more easily available than welded pipe.


Main Features :

• High manufacturing accuracy

• High strength

• Small inertia resistance

• Strong heat dissipation ability

• Good visual effect

• Reasonable price



1) Material:20#(ASTM A 106/A53 GRB.API5LGRB,GB),45#,16Mn,10#.

2) Specification range:OD:21.3-610mm,WT:6-70mm,length:6-12m or according to the requirement of clients.

3) Excutive standards:GB,ASME API5L.ASTM A 106/A53,Despite of the above standards,we can also supply seamless steel pipe with standard of DIN,JIS,and so on,and also develop new products according to the requirements of our clients!
4) Surface:black lacquered,varnish coating or galvanized.
5) Ends:Beveled or square cut,plastic capped,painted.
6) Packing:bundles wrapped with strong steel strip,seaworthy packing.

 FAQ :

A. How 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.

B. How 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.

C.Why 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 !

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Large Diameter Stainless Steel Pipe for wholesales

Large Diameter Stainless Steel Pipe for wholesales

Company Information:

CNBM International Corporation (CNBM International) is the most important trading platform of CNBM Group Corporation, a state-owned company under the direct supervision of State-owned Assets Supervision and Administration Commission of the State Council.

Since 2004, the trading volume of CNBM International has been doubled in 5 successive years owing to the support of superior corporations and effort of all staff. Meanwhile, we have established strategic partnerships with hundreds of domestic manufacturers and sound business relations with clients from over 120 countries. Currently, we have wholly-owned overseas subsidiaries and branches in 5 countries with a view to realize localization, which also represents an essential progress in our globalization target.



The main difference between schedule 10 and schedule 160 stainless steel pipes is their thickness and pressure rating. Schedule 10 pipes have a thinner wall thickness and a lower pressure rating compared to schedule 160 pipes, which have a thicker wall thickness and a higher pressure rating. Additionally, schedule 160 pipes are typically used for high-pressure applications, while schedule 10 pipes are suitable for low to medium-pressure applications.
Indeed, it is possible to chrome stainless steel pipes. To achieve this, a layer of chromium is applied onto the surface of the stainless steel pipe through a process called chrome plating. Typically, this involves immersing the stainless steel pipe in a solution containing chromium salts, while an electric current is passed through the bath. As a result, the chromium adheres to the surface of the stainless steel pipe. This chrome plating not only enhances the appearance of the stainless steel pipe but also provides a protective finish, increasing its resistance to corrosion and wear.
When selecting stainless steel pipes, it is important to consider factors such as the grade of stainless steel, corrosion resistance, temperature and pressure requirements, size and dimension of the pipes, and their intended application. Additionally, factors like cost, availability, and the reputation of the supplier should also be taken into account.
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.
Stainless steel pipe is manufactured through a process called pipe making. This process involves several steps that ensure the production of high-quality and durable stainless steel pipes. The first step in manufacturing stainless steel pipes is the selection of the raw materials. Stainless steel, which is a combination of iron, chromium, and other elements, is chosen for its corrosion-resistant properties. The specific grade and composition of stainless steel are carefully selected based on the intended application of the pipe. Once the raw materials are selected, they are melted in a furnace. This melting process is known as the electric arc furnace process. The stainless steel is heated to high temperatures, typically around 1700 degrees Celsius, to form a molten metal. After the molten metal is formed, it is transferred to a continuous casting machine. This machine helps in creating a solid cylindrical shape known as a billet. The billet is then transferred to a rolling mill where it is shaped into a seamless pipe. The rolling mill consists of multiple stands that gradually reduce the thickness and diameter of the billet. The billet is passed through these stands multiple times, with each pass reducing its size further. This continuous rolling process ensures the uniformity and consistency of the stainless steel pipe. Once the desired size is achieved, the pipe is cut to the required length. This is done using saws or other cutting tools. The ends of the pipe are then prepared for welding or other joining methods. In some cases, stainless steel pipes may undergo additional processes such as heat treatment or surface finishing. Heat treatment helps in improving the mechanical properties of the pipe, while surface finishing can provide enhanced aesthetics or corrosion resistance. Finally, the stainless steel pipes are inspected for quality and compliance with industry standards. This may involve various testing methods such as visual inspection, dimension and wall thickness measurement, non-destructive testing, and chemical analysis. Overall, the manufacturing of stainless steel pipes involves a combination of melting, casting, rolling, cutting, and inspection processes. These processes ensure the production of high-quality stainless steel pipes that are suitable for a wide range of applications including plumbing, construction, and industrial uses.
Stainless steel pipes and aluminum pipes possess distinct properties and advantages, rendering them appropriate for varying applications. A major disparity between stainless steel pipes and aluminum pipes lies in their resistance to corrosion. Stainless steel pipes boast exceptional resistance to corrosion, rendering them ideal for applications where the pipes come into contact with corrosive substances like chemicals or saltwater. In contrast, aluminum pipes exhibit less resistance to corrosion compared to stainless steel and are more susceptible to oxidation. Nevertheless, various coatings or treatments can enhance the corrosion resistance of aluminum pipes. Another crucial factor to consider is the strength and durability of the pipes. Stainless steel pipes generally surpass aluminum pipes in terms of strength and durability. They can endure higher pressure and temperature, making them suitable for high-stress applications such as industrial piping systems or fluid and gas transportation. Aluminum pipes, although less robust than stainless steel, are lightweight and offer favorable strength-to-weight ratios, making them fitting for weight-sensitive applications like aerospace or automotive industries. Cost represents another aspect of comparison. Stainless steel pipes typically incur higher costs than aluminum pipes due to the elevated expenses associated with raw materials and manufacturing processes. However, stainless steel pipes possess a longer lifespan and necessitate less maintenance, which can offset the initial higher cost in the long run. Aluminum pipes generally present a more affordable option, but they might require more frequent maintenance and replacement due to their lower resistance to corrosion and wear. Regarding appearance, stainless steel pipes exhibit a sleek and polished look, while aluminum pipes can undergo anodization or painting to achieve various finishes. The choice between the two would depend on the aesthetic preferences specific to the application. In conclusion, stainless steel pipes deliver superior corrosion resistance, strength, and durability, making them suitable for demanding applications. Conversely, aluminum pipes are lightweight and cost-effective, making them a favored choice in industries where weight is a concern. Ultimately, the selection between stainless steel pipes and aluminum pipes relies on the specific requirements of the application, taking into account factors such as corrosion resistance, strength, cost, and aesthetics.
304Ti and 316Ti are both types of stainless steel pipes, but they have some key differences. The main difference between 304Ti and 316Ti stainless steel pipes lies in their chemical composition. 304Ti is a variant of the 304 stainless steel grade, while 316Ti is a variant of the 316 stainless steel grade. One of the major distinctions is the presence of molybdenum in 316Ti, which is absent in 304Ti. Molybdenum enhances the corrosion resistance of stainless steel, making 316Ti more resistant to pitting and crevice corrosion in chloride-containing environments, such as marine or coastal areas. This makes 316Ti a preferred choice for applications where exposure to corrosive elements is a concern. Additionally, the carbon content in 316Ti is lower than that in 304Ti, which improves its resistance to sensitization and intergranular corrosion. Sensitization occurs when stainless steel is exposed to high temperatures, leading to the formation of chromium carbides, which can reduce the corrosion resistance of the material. By reducing the carbon content, 316Ti minimizes the risk of sensitization and maintains its corrosion resistance even under high-temperature conditions. In terms of mechanical properties, 316Ti generally has higher tensile strength and yield strength compared to 304Ti, making it more suitable for applications that require higher strength and durability. However, it is important to note that both grades of stainless steel pipes have excellent strength and toughness. In summary, the main differences between 304Ti and 316Ti stainless steel pipes lie in their chemical compositions and resulting corrosion resistance. 316Ti offers superior corrosion resistance in chloride-containing environments and better resistance to sensitization and intergranular corrosion. However, the choice between the two grades ultimately depends on the specific application requirements and environmental factors.
Q:Disadvantages of stainless steel tubes
Stainless steel composite pipe and aluminum plastic composite pipe in the structure of almost, to some extent, the performance is also relatively close. Similarly, due to the strength of the steel, the construction process is still a problem.
Yes, stainless steel pipes are highly suitable for industrial water systems. They offer excellent corrosion resistance, durability, and can withstand high-pressure and high-temperature environments. Additionally, they are hygienic and have a long lifespan, making them a preferred choice for industrial water systems.
Different industries commonly use seamless and LSAW stainless steel pipes. The manufacturing process and resulting structural characteristics distinguish these two types of pipes. Seamless stainless steel pipes are produced without any seams or welds. Manufacturers achieve this by piercing a solid cylindrical billet and extruding it to create a hollow tube. This technique ensures a uniform cross-section, resulting in a smooth and consistent inner and outer surface. The absence of welds eliminates potential weak points, enhancing the overall strength and integrity of the pipe. Seamless pipes are known for their superior corrosion resistance and are often preferred in critical applications where leakage must be avoided. In contrast, LSAW stainless steel pipes are formed by bending and welding a steel plate or coil into a cylindrical shape. The welding process involves passing an electric arc through the steel plate and the welding filler material, creating a visible seam on the pipe's exterior. LSAW pipes are commonly used in applications requiring large diameters and thick walls, such as oil and gas transportation. They can be produced in longer lengths and with larger diameters compared to seamless pipes. Seamless stainless steel pipes are generally more expensive to manufacture than LSAW pipes due to their complex production process. However, their seamless construction offers superior performance and reliability, making them the preferred choice for critical applications. On the other hand, LSAW pipes provide a cost-effective solution for large-scale projects where the visible seam is not a concern. To summarize, the main differences between seamless and LSAW stainless steel pipes lie in their manufacturing process, structural characteristics, and cost. Seamless pipes are made without seams or welds, providing excellent corrosion resistance and strength. LSAW pipes, on the other hand, are created by bending and welding a steel plate, offering a cost-effective solution for large-scale projects. The choice between these two types of pipes depends on the specific requirements of the application and the desired balance between cost and performance.

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