TP321 Stainless Steel Tube

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Loading Port:: China Main Port

Payment Terms:: TT or LC

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Quick Details

Standard:JIS, AISI, ASTM, GB, DIN, EN
Place of Origin:Tianjin, China (Mainland)
Model Number:321,321L
Type:Welded
Steel Grade:300 Series
Application:decorating,chemical plants,construction industry
Certification:SGS
Thickness:0.08-12.8mm
Outer Diameter:0.25-50.8mm
name:tp321 stainless steel tube
MOQ:25 kgs
material:321,321L
O.D.:0.25-50.8mm
thickness:0.08-12.8mm
Certificate:BV
privilege:Sample cost free for VIP customer
Application:decorating,chemical plants,construction industry
Standard:ASTM,EN,JIS
Experience:20 years

Packaging & Delivery

Packaging Details:	seaworthy wooden case packing or for customer's request
Delivery Detail:	3-10 days

Specifications

tp321 stainless steel tube
1.WT:0.08-12.8mm
2.OD:0.25-50.8mm
3.Sample cost free for VIP customers
4.MOQ:25kgs

321 stainless steel tube

1. WT: 0.08-12.8mm
2. OD: 0.25-50.8mm
3. MOQ: 25 kgs

4. Sample cost free for VIP customer

Steel grade : 301(1Cr17Ni17),304 Moderate Frequency (0Cr18Ni9),304 AOD (0Cr18Ni9),304L(00Cr19Ni10) ,321 M oderate Frequ ency (1Cr18Ni9Ti),321 AOD (1Cr18Ni9Ti),316(0Cr17Ni12Mo2),316L(00Cr17Ni14Mo2),310S(0Cr25Ni20) ,317L(00Cr19Ni13Mo3)

Specification : GB/T14975-2002,GB/T14976-2002,GB13296-91,GB9948-88 ASTM/ASME A213/SA213,ASTM/ASME A312/SA312,ASTM/ASME A269/SA269,DIN 17458-85,DIN 17456-85,JIS G 3459,JIS G 3463,JIS G 3448 JIS G 3446.

FAQ of Stainless Pipe :

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 !

Stainless Steel Tube Image

TP321 Stainless Steel Tube

Q:Are steel pipes suitable for conveying fluids?: Yes, steel pipes are suitable for conveying fluids. They are widely used in various industries for transporting liquids and gases due to their high strength, durability, and resistance to corrosion.

Q:Can steel pipes be painted or coated?: Certainly, steel pipes have the capability to undergo painting or coating procedures. It is a prevalent method employed to safeguard them against corrosion, enhance their visual appeal, or comply with particular industry standards. The process consists of an initial step of diligently cleaning the pipes to eliminate any dirt, grease, or rust. Subsequently, a primer is applied, followed by the desired paint or coating. The selection of paint or coating is contingent upon the envisioned purpose of the pipes. For instance, epoxy coatings are frequently utilized for water or wastewater pipelines, while high-temperature resistant coatings are employed for pipes utilized in industrial environments. In conclusion, the act of painting or coating steel pipes has the potential to augment their resilience and overall performance.

Q:How are steel tubes represented?: If you speak of steel pipe, if it is water. Gas transmission pipe, then it is said: nominal diameter refers to the inner diameter. The units are millimeters or inches. [for example, water pipes with phi 25. It means that the nominal diameter (diameter) is 25mm (or an inch) steel pipe.

Q:How are steel pipes used in the chemical processing industry?: Steel pipes are commonly used in the chemical processing industry for various purposes such as transporting chemicals, gases, and liquids, as well as for structural support and containment. They are highly durable, corrosion-resistant, and can withstand high temperatures and pressures, making them ideal for handling and conveying hazardous substances safely.

Q:How are steel pipes used in the water supply system?: Steel pipes are commonly used in the water supply system due to their durability and strength. They are used to transport water from the source, such as a reservoir or water treatment plant, to various distribution points, such as homes, buildings, and industries. Steel pipes are resistant to corrosion and can handle high water pressure, making them ideal for long-distance water transportation. Additionally, steel pipes are often used in underground applications, as they can withstand the weight of soil and other external forces.

Q:What are the future trends in steel pipe manufacturing?: Some of the future trends in steel pipe manufacturing include the use of advanced automation and robotics, the development of high-strength and lightweight steel materials, the implementation of sustainable and environmentally friendly manufacturing processes, and the integration of digital technologies for improved quality control and efficiency. Additionally, there is a growing focus on developing steel pipes with enhanced corrosion resistance and durability to meet the demands of various industries such as oil and gas, construction, and automotive.

Q:How are steel pipes protected against electrolytic corrosion?: Steel pipes are protected against electrolytic corrosion through a variety of methods. One common method is the application of protective coatings on the surface of the pipes. These coatings act as a barrier, preventing direct contact between the steel and the surrounding environment, which includes moisture and other corrosive substances. Coatings such as epoxy, polyethylene, and zinc are commonly used for this purpose. Another method of protection is the use of sacrificial anodes. Sacrificial anodes are made from a metal that is more reactive than steel, such as zinc or aluminum. These anodes are attached to the steel pipes and, as they corrode over time, they sacrifice themselves to protect the steel. This process is known as cathodic protection and is highly effective in preventing electrolytic corrosion. In addition to coatings and sacrificial anodes, proper insulation and electrical isolation are crucial in protecting steel pipes from electrolytic corrosion. Insulating materials, such as rubber or plastic sleeves, are used to prevent direct contact between the pipes and other metals or electrolytes. Electrical isolation can be achieved through the use of dielectric unions or insulating flanges, which prevent the flow of electric current between different sections of the pipeline. Regular maintenance and inspection also play a key role in protecting steel pipes against electrolytic corrosion. Periodic checks for coating integrity, anode condition, and potential electrical leakage are essential to ensure the continued effectiveness of the corrosion protection system. Overall, a combination of protective coatings, sacrificial anodes, insulation, electrical isolation, and regular maintenance is necessary to protect steel pipes against electrolytic corrosion. By implementing these measures, the lifespan of steel pipes can be significantly extended, ensuring the safety and reliability of various applications such as water distribution, oil and gas transportation, and structural support in buildings and infrastructure.

Q:What is the difference between hot-rolled and cold-rolled steel pipes?: Hot-rolled steel pipes are manufactured by heating the steel billets or coils to a high temperature, which allows for easier shaping and forming. The hot-rolled process also results in a rougher surface finish and larger tolerances. In contrast, cold-rolled steel pipes are made by rolling the steel at a lower temperature, resulting in a smoother surface finish, tighter tolerances, and improved strength and durability.

Q:How do you calculate the thermal expansion of steel pipes?: To calculate the thermal expansion of steel pipes, you need to use the coefficient of thermal expansion (CTE) for steel. The CTE is a measure of how much a material expands or contracts with changes in temperature. For steel, the average value of the CTE is typically around 12 x 10^-6 per degree Celsius (12 μm/m°C). To calculate the thermal expansion of a steel pipe, you need to know the initial length of the pipe (L0), the change in temperature (ΔT), and the coefficient of thermal expansion (CTE) for steel. The formula to calculate the thermal expansion is as follows: ΔL = L0 * CTE * ΔT Where: ΔL is the change in length of the steel pipe L0 is the initial length of the steel pipe CTE is the coefficient of thermal expansion for steel ΔT is the change in temperature For example, let's say you have a steel pipe with an initial length of 2 meters (L0), and the temperature increases by 50 degrees Celsius (ΔT). The CTE for steel is 12 x 10^-6 per degree Celsius. ΔL = 2m * 12 x 10^-6/°C * 50°C ΔL = 0.00024m/m°C * 50°C ΔL = 0.012m Therefore, the steel pipe would expand by 0.012 meters or 12 millimeters when the temperature increases by 50 degrees Celsius. It's important to note that this calculation assumes a linear expansion, which is valid for small changes in temperature. However, for larger temperature differences or more complex pipe systems, a more detailed analysis may be required to account for factors such as the pipe's material properties, geometry, and thermal boundary conditions.

Q:Can steel pipes be used for transporting liquids and gases?: Yes, steel pipes can be used for transporting both liquids and gases. Steel pipes are known for their durability, strength, and resistance to corrosion, making them suitable for a wide range of applications, including the transportation of fluids and gases. They are commonly used in industries such as oil and gas, water supply, sewage systems, and chemical processing plants. Steel pipes provide a reliable and efficient means of conveying liquids and gases over long distances, ensuring the safe and efficient transportation of these substances.

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