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Stainless Steel Pipe

Why Choose Us stainless steel?

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With our manufacturing and design capability, it allows us to not only offer standard products, but also products based on customers’ own specific designs.

 

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As evidence of this quality, we’ve been awarded third-party accreditations including ISO 9001-2015 and EN-1090-2. These independently verify our technical expertise and confirm that we meet standards set by respected regulatory bodies.

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Our design engineers have more than 25 years of experience designing and building molds that offer innovative solutions to complex design challenges.

 

 

What is a Stainless Steel Pipe?

A stainless steel pipe is a hollow, cylindrical tube made from a corrosion-resistant alloy of steel. It is used for conveying fluids or gases in various industries, including chemical processing, oil and gas, food processing, and medical equipment production. Stainless steel pipes typically have high strength, durability, and resistance to heat and abrasion, making them ideal for harsh environments and high-pressure applications.

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Benefits of Mirror Finish Stainless Steel pipe
 
01/

Anti-stain and anti corrosion
Corrosion is the number one adversary of metal piping. The exterior of iron, steel and concrete pipework will deteriorate due to soil and UV rays. Other types of piping inside walls appear to rust, become damaged by abrasion, or accumulate debris. However, due to corrosion resistance of stainless steel, this happens rarely. This gives stainless steel an advantage in areas such as sanitary water distribution and hospital applications.

02/

Cost effective
When you buy stainless steel 316 pipes, you’re getting a durable product that will last for decades. It is a long-lasting substance that is simple to maintain and install. Because of its corrosion-resistant qualities, stainless steel is low-maintenance and unlikely to need to be replaced for decades.

03/

Versatility
Stainless steel can be treated with various elements such as molybdenum, nickel, or nitrogen to improve its corrosion resistance. Stainless steel can endure high temperatures. By adding various materials to stainless steel, thin pipe walls can be achieved, resulting in a lighter finished product that is suited for a wide range of commercial and industrial applications.

04/

Hygiene
Stainless steel is a hygienic material that is easy to clean and maintain, making it ideal for use in food processing, medical, and pharmaceutical industries. It is also resistant to bacteria, mold, and other contaminants.

05/

Environmentally friendly
Stainless steel is not a petroleum-based product. Unlike other pipe materials, it does not require any type of coating or lining. When you require disposing of or repairing stainless steel piping, it is 100% recyclable, reducing the environmental impact.

06/

High heat resistance
While this might only be true for certain grades, it is possible to find stainless steel designed to last in extreme temperatures.For piping, this is vitally important. These pipes could be placed in an area of exceptionally high heat, or an area where they’re exposed to frigid temperatures.

Types of Stainless Steel Pipe
 

304 Stainless steel pipe

For tubing and piping applications, type 304 stainless steel is a common selection because it is highly chemical- and corrosion-resistant. However, type 304 stainless steel is not compatible with applications where temperatures fall between 800 and 1640 degrees Fahrenheit (F) because it is prone to carbide precipitation, a result of the material’s .08 percent carbon content limit. Stainless steel type 304L circumvents this problem because it has a lower carbon content limit, and therefore can be subjected to welding and higher temperature applications.

 

Stainless steel pressure pipe

This type of stainless steel pipe is made from either solid chromium or a chromium and nickel combination. Types of stainless steel pressure pipe include seamless and welded pipe, electric fusion welded pipe for high-pressure applications, large diameter welded pipe for corrosive or high-temperature applications, and seamless and welded ferritic and austenitic stainless steel pipe.

 

Stainless steel sanitary tubing

For applications where stainless steel tubing or piping must come into contact with food and other sensitive products, sanitation is a high priority. Stainless steel sanitary tubing is used in such applications because it has high corrosion-resistance, doesn’t tarnish, and is easy to keep clean. For specific applications, different tolerances can be achieved.

 

Stainless steel mechanical tubing

In applications such as cylinders, bearings, and other hollow formed parts, stainless steel mechanical tubing is typically used. Tubing can manipulated to have a variety of cross-sectional shapes, such as square and rectangular, in addition to the more traditional, round tubing cross-section.

 

Stainless steel aircraft tubing

In highly-specific aircraft applications, chromium and nickel type stainless steel is used because of their heat and corrosion-resistance. Found in applications that require high-strength, stainless steel aircraft tubing can be work-hardened or welded, although work-hardened pieces shouldn’t be used with some kinds of corrosive substances. Low-carbon types of stainless steel are a common choice for welded parts.

 

Aircraft hydraulic line tubing

Another type of aircraft tubing, aircraft hydraulic-line tubing is used in aerospace applications as fuel-injection lines and hydraulic systems, and tends to be small. It is often manufactured from types 304 or 304 L stainless steel because of the steel’s high-strength, corrosion-resistance, and ductility.

Material of Stainless Steel Pipe
 
304 Stainless Steel Seamless Pipe

 

Austenitic stainless steel

This is the most common type of stainless steel used for manufacturing pipes. It is a chromium-nickel stainless steel that can be easily welded, fabricated, and formed. It also offers good resistance to corrosion and heat.

Duplex stainless steel

This material has a higher strength and better corrosion resistance than austenitic stainless steel. It contains both chromium and nickel, along with other elements like molybdenum and nitrogen, making it ideal for highly corrosive environments.

Ferritic stainless steel

These stainless steel pipes are made from a material that contains high levels of chromium and low levels of carbon. This type of stainless steel has high resistance to corrosion and is commonly used in construction and industrial applications.

Martensitic stainless steel

Professional quality inspectors will conduct a quality inspection on each batch of products. Authoritative test reports are also available.

Precipitation-Hardening stainless steel

These stainless steel pipes are made from a material that contains chromium, nickel, and other elements. They are heat-treated to improve their strength and corrosion resistance.

Application of Stainless Steel Pipe
 

Oil and gas industry

Stainless steel seamless pipes are widely used in the oil and gas sector for conveying fluids, especially in harsh and corrosive environments. They are suitable for both upstream and downstream applications.

Chemical industry

Stainless steel pipes are employed in the chemical processing industry for transporting corrosive chemicals and fluids. Their resistance to chemical corrosion makes them a preferred choice.

Petrochemical industry

Petrochemical plants use stainless steel seamless pipes for various applications, including the transportation of petrochemical products, acids, and other corrosive substances.

Power generation

Stainless steel pipes are used in power plants for conveying steam, condensate, and other high-temperature fluids. Their corrosion resistance is crucial in power generation applications.

Food and beverage industry

Stainless steel seamless pipes are widely used in the food and beverage industry for conveying liquids and gases. Their hygienic properties, resistance to corrosion, and ease of cleaning make them suitable for this industry.

Automotive industry

Stainless steel pipes are used in automotive applications, including exhaust systems. Their corrosion resistance and ability to withstand high temperatures contribute to their durability in such applications.

Aerospace industry

Stainless steel pipes are employed in aircraft and aerospace applications due to their high strength-to-weight ratio, corrosion resistance, and reliability in extreme conditions.

Water and wastewater treatment

Stainless steel seamless pipes are used in water and wastewater treatment plants for conveying water, chemicals, and other fluids. Their corrosion resistance is essential in these environments.

Construction and architecture

Stainless steel pipes are used in construction for various purposes, including structural components, handrails, and architectural features. Their aesthetic appeal, durability, and corrosion resistance contribute to their popularity.

Pharmaceutical industry

Stainless steel seamless pipes are employed in the pharmaceutical industry for the transportation of fluids and chemicals. The high hygiene standards and corrosion resistance make them suitable for pharmaceutical applications.

Stainless Steel Pipe Craftsmanship
 

Cutting
The first step in the fabrication of any pipe is cutting the raw material to the desired length. Stainless steel pipes are cut with a saw or plasma cutter.

 

Forming and bending
After cutting, the pipe is formed and shaped into the desired shape. This is achieved by using specialized tools, such as rollers and benders, to create curves, angles, and intricate shapes.

 

Welding
Welding is the process of joining two or more pieces of metal to create a seamless structure. Stainless steel is welded using Tungsten Inert Gas (TIG) welding, which provides a high-quality weld that is aesthetically pleasing and durable.

 

Polishing
After welding, the pipe is polished to provide a smooth, shiny finish. Polishing helps to eliminate any scratches or blemishes on the surface of the pipe, creating a mirror-like appearance.

 

Testing
Finally, the pipe undergoes testing to ensure that it meets the required specifications. Testing includes pressure testing, ultrasonic testing, and visual inspection.

How to maintain Stainless Steel Pipe

 

 

Duplex Stainless Steel Pipe

1.Conduct regular inspections

To avoid these emergencies, we recommend you to conduct scheduled inspections. The timing will depend on what application you’re using a steel pipe for. Consulting with your supplier may be the best way to know this. You should look for any signs of cracks and holes in the steel pipes. This will make it easier for the environment to accelerate corrosion which can eat away at the pipe.

2.Prevent metal to metal contact

When you’re first installing your pipes, make a strategic plan on how to place each one to ensure that contact with other types of metals is minimized. Contact with other metals can lead to damages such as scratches and deformation if it occurs for a long time. Metal to metal contact can also lead to corrosion.

3.Minimize pipe movement

To reduce the damage to your steel pipes, it is a good idea to keep them fixed using the proper restraints such as clamps and bolts. This will keep it in place and reduce the impact of pressurized elements such as water. It also keeps your pipes from crashing into each other.

4.Clean and polish pipes

It is important to make it a priority to maintain cleanliness in your building. If you can prevent the buildup of dirt and grime to the pipes, that is even better. Train your people to be mindful of their surroundings and always keep the place clean and hygienic.

5.Make minor repairs

If you see minor damages early, there are some first-aid repairs you can do to your pipes. You can seal holes and cracks with plumber putty or specialized bandages and clamps. This can serve as short-term repairs while you wait to schedule a professional consultation, but it can serve you for the long term if you only have minor damages.

6.Know your pipes’ life expectancy

When you’re first installing pipes in your building, it is recommended to ask your supplier about the expected life span. If you take care of your pipes, you can slow down this progress. But a time will come when you will need to upgrade or replace them. Generally, galvanized pipes have a life expectancy of 30-50 years.
What is the standard for stainless steel pipe?
 
 

(ANSI) standard

One of the most commonly used standards for stainless steel pipes is the American National Standards Institute (ANSI) standard. This standard covers the dimensions, tolerances, and materials for stainless steel pipes. It provides guidelines for the manufacturing process, ensuring that the pipes meet certain criteria for strength, corrosion resistance, and durability.

 
 
 

(ASTM) standard

Another widely recognized standard is the American Society for Testing and Materials (ASTM) standard. This standard specifies the requirements for both seamless and welded stainless steel pipes. It defines the chemical composition of the pipes, as well as the mechanical properties, such as tensile strength and yield strength. The ASTM standard also includes guidelines for testing methods, which are used to evaluate the quality and performance of the pipes.

 
 
 

(ISO) standard

In addition to these standards, there are also international standards, such as the International Organization for Standardization (ISO) standard. The ISO standard provides guidelines for the design, manufacturing, and testing of stainless steel pipes. It aims to ensure consistency and compatibility of these pipes across different countries and industries.

 
What method is used to weld stainless steel pipe?

 

Step 1: High-quality welds. It involves the use of a non-consumable tungsten electrode to create an electric arc that melts the base metal and filler material, if necessary. A shielding gas, such as argon, is used to protect the weld area from atmospheric contamination.

Step 2: The TIG welding process for stainless steel pipe begins with proper preparation. The pipe ends need to be cleaned and beveled to provide a smooth and clean joint surface. This helps in achieving better fusion and improves the overall strength of the weld.

Step 3: Once the preparation is complete, the next step is to set up the welding equipment. The TIG welding machine needs to be set to the appropriate current and voltage settings. The electrode, typically made of pure tungsten or a tungsten alloy, needs to be sharpened and inserted into the torch.

Step 4: Before starting the actual welding, the welder needs to wear appropriate protective gear, including a welding helmet, gloves, and a protective jacket. Proper ventilation is also crucial to avoid exposure to harmful fumes and gases generated during the welding process.

Step 5: To begin welding, the torch is positioned at the joint of the stainless steel pipes, maintaining a specific angle and distance. The foot pedal or torch switch is used to control the arc and current flow. The welder needs to have a steady hand to guide the electrode along the joint, melting the base metal and introducing the filler material, if required.

Step 6: During the welding process, it is vital to ensure a stable arc is maintained and that the weld pool is protected with the shielding gas. The welder needs to move the torch in a controlled manner, ensuring even penetration and fusion along the joint.

Step 7: Once the welding is complete, the weld bead should exhibit a smooth and uniform appearance. It is essential to inspect the weld for any defects, such as cracks, voids, or insufficient fusion. Non-destructive testing methods, such as dye penetrant inspection or radiographic examination, can be performed to ensure the quality of the weld.

Our Factory
 

With a vast stock holding of stainless steel sheets, coils, strips, tubes, and bars, we have a wide range of products readily available to meet your immediate needs. Our comprehensive inventory ensures quick access to the materials you require. 

productcate-1048-380

 

Frequently Asked Questions Stainless Steel Pipe
 

 

Q: How is the prospect of the stainless steel seamless pipe?

A: Actually, the iron and steel industry has experienced a lot of difficulties and opportunities in the past few years. We all know that the iron and steel industry is the lifeline of our country. Although the development momentum of iron and steel industry is not good enough, but the market of stainless steel seamless pipe is still hot. Actually, it is not hard to understand because the urbanization process has a strong connection with the stainless steel tube industry. Stainless steel seamless pipe has been applied in a lot of building structures. Not only the buildings, but also the water transportation, liquid natural gas transportation cannot separated from the stainless steel seamless pipe. Therefore, the prospect of the stainless steel tube is good.

Q: What are the uses of stainless steel pipes?

A: Stainless steel pipes have a broad range of applications across many industries. Their superior corrosion resistance, strength, and aesthetic appeal make them an excellent choice for construction, automotive, healthcare, and chemical sectors.

Q: What is the life expectancy of stainless steel pipe?

A: 100 years
Service pipe made of Type 316 stainless steel provides a hygienic, corrosion resistant and long-lasting solution of 100 years or more.

Q: What is the standard for stainless steel pipe?

A: Stainless Steel Pipes - RFS Hydraulics
Stainless steel pipes are manufactured according to ASTM A312 standard. The material is available in grade SS316/316L and made in standard length of 6 meters long.

Q: What is the most common stainless steel pipe?

A: Type 304 stainless steel
The choice between material is highly dependent upon how you will use the pipe and the environment in which the pipe will be installed. Type 304 stainless steel is perhaps the most common type used because it is corrosion-resistant and easy to sanitize.

Q: How durable are stainless steel pipes?

A: Top 5 Advantages of Stainless Steel Pipes
Even though Stainless Steel 304 Pipes are lightweight, they are solid. They won't succumb to external weights and pressure. Hence, it is said that it is one of the most durable materials. Stainless Steel 304 Pipes can withstand extreme temperatures as well as extreme pressures.

Q: What temperature can stainless steel pipe withstand?

A: Maximum Temperature: The maximum temperature limit for stainless steel pipes depends on their grade and composition. Austenitic stainless steels can withstand temperatures up to 870°C (1598°F), while ferritic and martensitic stainless steels have lower temperature limits, typically around 700°C (1292°F).

Q: Is stainless steel pipe good for plumbing?

A: When you use stainless steel pipes, you are buying a durable product that will last your business for decades. It is a reliable material that is easy to maintain and install. Stainless steel is low-maintenance, and due to its corrosion-resistant properties, it is unlikely they will need to be replaced for decades.

Q: What is the difference between 304 and 316 stainless steel pipe?

A: The key difference between 304 vs 316 stainless steel that makes them different is the addition of molybdenum, an alloy that drastically enhances corrosion resistance, especially for more saline or chloride-exposed environments. 316 stainless steel contains molybdenum, but 304 does not.

Q: Which grade SS pipe is best?

A: Most stainless steel ordered around the world is Grade 304. It offers the standard corrosion resistance, formability, strength, and easy maintenance for which stainless is known. While 316 comes in second in terms of quantities sold, it offers vastly superior corrosion resistance to chlorides and acids.

Q: How can you tell if a pipe is stainless steel?

A: Though steel has a minimal range of colors, it helps identify the type of metal that is remarkable. The pipe used in buildings, which is carbon steel, comes in a dark brown color. Stainless steel, which is generally used in the kitchen, is silver and shiny. If the metal has reddish rust spots, then the metal is steel.

Q: What are the benefits of stainless steel pipe?

A: Steel Pipes Have Value
Using stainless steel pipes gives you a durable product that will last for decades. Steel is a reliable material that is easy to maintain and install. Stainless steel is very low-maintenance, and because of its corrosion-resistant properties, it's unlikely it will need to be replaced for decades.

Q: Is stainless steel pipe good for hot water?

A: The thermal conductivity of stainless steel pipe is the 1/25 of the copper tube, thereby also making it suitable for conveying hot water. One of stainless steel's most prominent advantages is its corrosion resistance, which helps ensure durability, and long term performance.

Q: Why should stainless steel pipes be foiled?

A: Additionally, wrapping the piping or equipment in aluminum foil, pre insulation, will significantly reduce the risk of corrosion of the substrate, as the foil provides a physical barrier preventing the saturated chloride from reaching the SS surface, while also providing electrochemical protection by preferentially ...

Q: Where can I use stainless steel pipe?

A: Stainless steel pipes play an important role in oil and gas extraction, transportation and storage due to their corrosion resistance and high strength. Wastewater treatment: The wastewater treatment field requires pipes with corrosion resistance and durability, able to withstand harsh environmental conditions.

Q: Can stainless steel pipe be heated and bent?

A: Heat. Using heat to bend stainless steel tubes can be difficult. It's always best to try to bend stainless steel cold, but if you must use heat, heat the tube between 800 and 1500 degrees Fahrenheit and then leave it to cool.

Q: How do you join stainless steel pipe without welding?

A: There are several ways to connect pipes without welding, among them you can connect pipes by threading or using pipe fittings. However, the simplest and easiest way will be to use Klemp pipe fittings. Such pipe connections allow for a tight connection without threading and welding.

Q: Can you bend stainless steel pipe by hand?

A: Pro tip: Fill your pipe all the way with sand before using whatever leverage necessary to bend it. Duct tape off the ends so your sand stays put. The sand will ensure that you don't kink the pipe as you bend it and will even out your bend a bit.

Q: What method is used to weld stainless steel pipe?

A: The three most common stainless welding processes are:
SMAW - Shielded Metal Arc Welding or Stick Electrode. ...
GTAW - Gas Tungsten Arc Welding or Tig Welding. ...
FCAW - Flux Cored Arc Welding. ...
GMAW - Gas Metal Arc Welding or Mig Welding.

Q: Can you direct bury stainless steel pipe?

A: Stainless steel can provide excellent service underground. It is stronger than polymers and copper, and its resistance to chlorides and acidic soils is significantly better than carbon or galvanised steels. The performance of stainless steel buried in soil depends on the nature of the buried environment.

As one of the leading stainless steel pipe manufacturers and suppliers in China, we warmly welcome you to buy or wholesale cheap stainless steel pipe in stock here from our factory. All customized products are with high quality and competitive price. For free sample, contact us now.

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