Your Professional Duplex Stainless Pipe Or Tube Supplier

 

Jiangsu Cunrui Metal Products Co., Ltd. was established on March 24, 2016. It is a modern enterprise specializing in the production and export of high-quality metal pipes.

 

Our company is a significant manufacturer of high-quality metal materials in China. Our product range includes stainless steel, carbon steel, alloy steel, silicon steel, etc., which are widely used in the medical, food, construction and other industries.

 

 
 
Why Choose Us
Production Capacity
Equipped with large-scale production facilities, we have an annual manufacturing capacity exceeding 6,000 metric tons.
24-Hour Online Service
We provide round-the-clock customer support with inquiry responses within 24 hours, including technical assistance and quotation services.
Global Supply Chain Network
Our products have earned widespread recognition and trust across more than 50 countries, including the United States, France, South Korea, Japan, India, Germany, and Spain, as well as key regions such as South Asia, Southeast Asia, and the Middle East.

 

Parameter

Parameter

Specification

Grade / Standard

S32101 Duplex Stainless Steel Pipe / Tube

Standards

ASTM A789, ASME SA789, EN 1.4162

Outer Diameter

12mm – 610mm (customizable)

Wall Thickness

1.0mm – 25mm

Length

2000mm – 12000mm or as per customer requirement

Surface Finish

Pickled, 2B, BA, Polished

Yield Strength (Rp0.2)

≥ 450 MPa

Tensile Strength (Rm)

620 – 750 MPa

Elongation (%)

≥ 25%

Hardness

≤ 280 HB

Corrosion Resistance

Excellent against general corrosion and moderate chloride attack

Certificates

MTC, ISO 9001, SGS, BV, TÜV

 

Customization Process

Customization Process

Custom size can be tailored to meet specific customer requirements. Please provide your customization concepts and detailed specifications for further discussion.

Production Execution

Following the confirmed design, we implement meticulous production processes with strict quality control at every stage, ensuring consistency and precision before proceeding to mass production.

Quality Inspection and Packaging

Upon completion of the product, a comprehensive three-stage inspection process is conducted to ensure quality standards are met. Subsequently, the products are packaged in accordance with your specified requirements.

Delivery Assurance

We ensure timely delivery of the products within the agreed timeframe as per the contract terms.

 

 

 
 
Benefits of Duplex Stainless Pipe Or Tube
S32101 Duplex Stainless Steel Pipe

Enhanced Corrosion Resistance

Duplex steel pipes are highly resistant to corrosion, making them an ideal solution for applications in aggressive environments.

S32304 Duplex Stainless Steel Tube

High Strength

With excellent tensile strength, duplex pipes can handle high-pressure applications, reducing the need for heavier pipe materials.

2205 Duplex Stainless Steel Pipe

Good Weldability

Duplex pipes offer better weldability than other materials, ensuring a smoother fabrication process and high-quality welds.

2507 Super Duplex Stainless Steel Pipe

Resistance to Stress Corrosion Cracking

The unique structure of duplex steel reduces the risk of stress corrosion cracking, which can be a significant concern in certain applications.

 

Manufacturing of Duplex Stainless Pipe Or Tube
 

Raw Material Selection

High-quality duplex stainless steel is selected based on industry standards.

Forging & Forming

The steel is heated and shaped into the required fitting dimensions.

Heat Treatment

The fittings undergo annealing to enhance mechanical properties and corrosion resistance.

Machining & Finishing

Precision machining ensures accurate dimensions, followed by surface finishing treatments.

Testing & Quality Control

Rigorous inspections such as hydrostatic, ultrasonic, and mechanical tests are performed to ensure compliance with industry standards.

Final Inspection & Packaging

The fittings are inspected for defects and securely packaged for safe transportation.

 

Application of Duplex Stainless Pipe
 

Oil And Gas Industry
Duplex stainless pipe or tube is widely used in oil and gas extraction and transportation pipelines. Its high strength and corrosion resistance make it ideal for long-term operation in harsh environments, preventing leaks caused by corrosion.

 

Chemical Processing
This duplex stainless steel is commonly used in the chemical industry, particularly in environments exposed to strong acids, alkalis, and other corrosive chemicals. Its excellent corrosion resistance extends the lifespan of equipment and pipelines, reducing maintenance costs.

 

Marine Engineering
Duplex stainless pipe or tube is highly resistant to seawater corrosion, making it ideal for offshore structures such as oil rigs and ships. Its superior mechanical properties and corrosion resistance make it suitable for long-term use in marine environments.

 

Food And Pharmaceutical Industry
Due to its excellent corrosion resistance and hygienic properties, duplex stainless pipe or tube is widely used in food processing and pharmaceutical equipment. It helps prevent bacterial and other contaminants from growing, ensuring product safety and quality.

 

Transportation

Whether it is air freight, express delivery, or sea freight, we can arrange shipments according to the time required by customers. We help customers inquire about the best rates and arrange the delivery of your goods in the most economical way. This allows you to control the schedule of the entire project to meet seasonal cargo demand.

 

 

Certificate

 

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FAQ

 

Q: What is the difference between S32101 and 2101 duplex stainless steel?

A: S32101 has a slightly higher chromium and molybdenum content, providing slightly improved corrosion resistance while maintaining similar mechanical properties.

Q: Can I order custom diameters and wall thickness?

A: Yes, we offer full customization according to your drawings or specifications.

Q: What surface finishes are available?

A: Pickled, 2B, BA, and polished finishes are available depending on application requirements.

Q: Is small quantity order acceptable?

A: Yes, we support low MOQ orders and can provide cut-to-size services.

As one of the most experienced duplex stainless pipe or tube manufacturers in China, we also support customized service. Please rest assured to buy cheap duplex stainless pipe or tube for sale here from our factory. If you have any enquiry about pricelist and free sample, please feel free to email us.

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