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Nahtlose Rohre aus Edelstahl

Welcome to JBLSTEEL, your trusted partner for top-quality stainless steel seamless pipe. Whether your project is small, or large,our stainless steel seamless pipes are designed to meet all your needs.From the chemical industry, and agriculture, to pharmaceutical industries,our seamless pipes offer precision, durability, and sustainability solutions for any application.Explore our range of seamless stainless steel pipe today and elevate your working production with the best solutions for your project!

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Stainless Steel Classification

Whether for oil and gas, chemical processing, or aerospace industry,our seamless tubes offer the perfect solution for your specific project,providing higher strength,excellent corrosion resistance and reliability.

Austenitic Stainless Steel

Austenitic stainless steel is one of the most widely used types of stainless steel, known for its excellent corrosion resistance, formability, weldability, and non-magnetic properties.The main composition consists of at least 10.5% chromium and 8% nickel, with other elements such as nitrogen and carbon also present.

Suitable for food processing, chemical and architectural decoration.

Ferritic Stainless Steel

Ferritic stainless steel is a type of stainless steel alloy,known for its corrosion resistance, magnetic properties, and cost-effectiveness. It belongs to the 400 series of stainless steels and is characterized by its body-centered cubic (BCC) crystal structure, which gives it magnetic properties different austenitic stainless steels.

   Suitable for kitchen utensils and automotive exhaust systems.

Martensitic Stainless Steel

Martensitic stainless steel known for its high strength, wear resistance, and moderate corrosion resistance, is magnetic due to the body-centered tetragonal (BCT) crystal structure.It is primarily composed of chromium (12-17%) and carbon (up to 1.2%), with minimal nickel content. The absence of nickel makes martensitic stainless steel more cost-effective compared to austenitic stainless steel.

Duplex Stainless Steels

Duplex stainless steels are a family of stainless steels with a mixed microstructure of austenite and ferrite phases in roughly equal proportions. They offer a combination of properties from both austenitic and ferritic stainless steels,have improved corrosion resistance and higher strength.Duplex stainless steels are magnetic.Many duplex grades are about twice as strong as austenitic and ferritic stainless steel grades.

Stainless Steel Material Categories

Austenitic Stainless Steel

Austenitic stainless steel is the most popular choice for seamless pipes due to its excellent corrosion resistance and workability.

200 Series:

  • 201;

 

300 Series:

  • 304/304L/304H;
  • 310/310S;
  • 316/316L/316H/316Ti;
  • 317/317L;
  • 321/321H,
  • 347/347H;
  • etc

Ferritic Stainless Steel

Ferritic stainless steel offers good resistance to stress corrosion cracking but has lower ducility than austenitic steel.

 

400 Series:

  • 409
  • 430
  • 439
  • 444
  • etc

Martensitic Stainless Steel

Martensitic stainless steel is known for its high strength but has lower corrosion resistance. It’s used in seamless pipes requiring hardness.

400 Series:

  • 410
  • 420
  • 431
  • 440A
  • 440B
  • 440C
  • etc

Duplex Stainless Steels

Duplex stainless steel combines the benefits of austenitic and ferritic steels, offering high strength and excellent corrosion resistance.

Duplex Stainless Steel
  • S31803;
  • S32205;
  • S32750
  • S31500
  • S32760
  • etc

Stainless Steel Seamless Pipe Forms

Stainless steel pipes can be divided into round tubes and special-shaped tubes according to the cross-section shape. In addition to round, seamless stainless steel pipes can be made into a variety of shaped cross-sections, including square, rectangular, oval, hexagonal,octagonal, etc. The shaped pipes are usually used in structural or mechanical parts that require special cross-sectional shapes.

316 Stainless Steel Tubing
rectangular stainless steel pipe
stainles steel square tube
smls pipe
ss pipe
stainless steel u tube
ss oval pipe
316 ss pipe

Stainless Seamless Steel Pipe Categories

The versatility, durability, and seamless construction make stainless steel pipe an ideal choice for various applications, from industrial use in oil and gas pipelines to hygienic systems in food processing plants.

Stainless steel seamless pipes are categorized based on different applications:

Oil & Gas

Offshore drilling risers, subsea pipelines, refinery equipment.

Recommended Grade:

  • 316L ;
  • Dulpex 2205

Chemical Processing

Acid storage tanks, heat exchangers, reactor vessels.

Recommended Grade:

  • 317L ;
  • Super Duplex 2507

Pharmaceutical

Sanitary tubing, bioreactors, cleanroom systems.

Recommended Grade:

  • 316L

Food & Beverage

Brewery fermentation tanks, dairy processing lines.

Recommended Grade:

  • 304 ;
  • 304L

Automotive

Exhaust systems, fuel injection lines, turbochargers.

Recommended Grade:

  • 409 ;
  • 304

Renewable Energy

Hydrogen electrolyzers, solar thermal systems.

Recommended Grade:

  • 316Ti ;
  • 904L

Stainless Steel Seamless Pipe-The ideal choice for industrial and hygienic systems

JBLSTEEL Seamless Pipes offer a highly versatile solution for all your applications needs.Whether from industrial use in oil and gas pipelines to hygienic systems in food processing plants,we provide pipe options that cater to various requirements,ensuring optimal performance and longevity in every project.Stainless steel seamless pipes are essential components in a wide range of industries due to their superior strength, corrosion resistance, and ability to handle extreme conditions.

Seamless pipes have no joints or seams, offering superior strength, uniformity, and resistance to pressure and corrosion. They are widely used in industries requiring high reliability, such as oil and gas, chemical processing, and aerospace.

Our stainless steel seamless pipe incorporate advanced technology and precise control systems to ensure that each meets the highest quality standards.These pipes not only can withstand extreme temperatures and pressures but also durability to prolong the service life,particularly in oil and gas, power generation, and aerospace.Choose JBLSTEEL to ensure optimal performance and longevity in every project.

smls ss pipe
stainless steel tubes
stainless seamless pipe
ss seamless tube
ss round pipe
ss round pipe
Seamless Stainless Steel Tubing
stainless pipe

Still not finding what you're requiring? Contact our consultants for more available products.

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Features of Seamless Pipe

No Weld Seams

Seamless process eliminate the risk of weak points that could fail under stress, ensuring leak-proof performance in high-pressure and high-temperature applications and extreme conditions.

Smooth Interior Surface

The seamless design results in a smooth interior, allowing for better flow of liquids and gases, reducing friction, and preventing bacterial growth,critical in food or pharmaceutical applications.

Environmental Protection and Sustainability

Stainless steel seamless pipes can be recycled and reused, reducing resource waste, meeting the requirements of low-carbon environmental protection,widely used in petroleum, chemical, energy and other industries.

Corrosion Resistance

Stainless steel seamless pipe has excellent corrosion resistance, can resist high temperature, high pressure and chemical erosion. Mainly composed of iron, chromium, nickel and other elements, has good heat resistance, oxidation resistance and corrosion resistance, ideal for use in harsh environments such as chemical plants, offshore platforms, and marine applications.

High Strength

Stainless steel seamless tube has high strength and hardness, also having excellent toughness and plasticity. Its mechanical properties enable it to withstand greater pressure and tension, suitable for a variety of high-intensity working conditions.Withstands extreme pressure (up to 10,000 psi) and mechanical stress.

High-Temperature and Pressure Tolerance

Seamless pipes can withstand extreme temperatures and pressures,suitable for critical applications in industries such as oil and gas, power generation, and aerospace. Performs in temperatures from -196°C to 1,000°C.

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Production Process

Extrusion and Piercing

Cold Drawing or Hot Rolling

Heat Treatment

Surface Finishing

316 stainless steel tubing production process
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Processing Services

We offer many types of fabrication services, including water jet, laser and plasma cutting, as well as turning, milling, punching, bending and calendering,sanding & polishing services. We offer custom design services and specialized technical consulting to support our customers at every stage of the production process.

stainless steel laser cutting
stainless pipe Precision turning
stainless steel pipe AUTO POLISHING
Water jet cutting
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What is Stainless Steel Seamless Pipe?

Stainless steel seamless pipe is a hollow, cylindrical tube made from a solid stainless steel billet through extrusion or rotary piercing processes. Unlike welded pipes, seamless pipes have no joints or seams, offering superior strength, uniformity, and resistance to pressure and corrosion. Seamless pipe is essential for applications that require high durability and pressure tolerance, as it eliminates weak points and provides uniformity throughout the structure,widely used in industries requiring high reliability, such as oil and gas, chemical processing, and aerospace.

There are different types of seamless steel pipes, such as round,square, rectangular, oval, hexagonal, octagonal and other shaped tubes.Round stainless steel seamless tubes are the most common shape with a cylindrical cross-section, providing good pressure-bearing capacity and sealing performance,while the shaped tubes as square, rectangular, oval, hexagonal, and octagonal are usually used in structural or mechanical parts that require special cross-sectional shapes.

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How Long Is The Service Life of Stainless Steel Seamless Pipes

The service life of stainless steel seamless pipes does not have a fixed duration and depends on several key factors, including material type, usage environment, maintenance, and processing quality.

1. Material Type

  • Austenitic Stainless Steel ( 304/316): These grades offer excellent corrosion resistance, allowing them to last for decades or even over a century in favourable conditions.
  • Ferritic and Martensitic Stainless Steel: With lower corrosion resistance, these types have a shorter lifespan compared to austenitic grades.

2. Usage Environment

  • Mild Environments (dry indoor settings or urban areas): Steel pipes can remain durable for decades to over 100 years with minimal wear.
  • Harsh Environments (coastal areas, high humidity, or exposure to chemicals):Under such conditions, corrosion may occur within a few years unless use highly resistant grade like 316.

3. Maintenance
Regular cleaning and care (removing salt or dirt) can significantly extend the pipes’ lifespan.Neglecting maintenance in corrosive settings can lead to failure in just a few years, even for high-quality stainless steel.

 

4. Processing and Installation Quality
Poor welding, surface scratches, or improper installation can weaken the pipes and shorten their lifespan by accelerating corrosion.

  • 304 Stainless Steel: In urban environments (railings or water systems), it typically lasts 20-50 years or more.
  • 316L Stainless Steel: In demanding settings like chemical plants, it can endure 30-50 years with proper maintenance.
  • Extreme Conditions: In highly acidic, high-temperature, or high-pressure environments, the lifespan may drop from a few months to a few years without specialized materials.
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How do you ensure material authenticity and compliance with international standards?

We source raw materials from leading steel mills,all our seamless tubes undergo third-party lab testing (SGS) with traceable Mill Test Certificates (MTCs). We comply with ASTM ,EN ,JIS, GB standards. Full inspection reports are available as request, including chemical composition and mechanical property verification.

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Can you handle orders for non-standard sizes?

We provide customization service,tailored sizes, grades, and surface finishes (e.g., pickled, polished).

  • Custom OD/wall thickness (6-630mm OD, 1-50mm WT)
  • Special surface finishes (#8 mirror polish, pickled, or blasted)

Kontakt

Durch die vollständige Kontrolle über die Produkte können wir sicherstellen, dass unsere Kunden die besten Qualitätspreise und den besten Service erhalten. Kontaktieren Sie uns für ein kostenloses Angebot, JBLSTEEL wird die richtige Lösung für Ihr Projekt bieten.

Kontakt aufnehmen

  • 0372-2156005
  • 86-15639045272
  • wendy@jinblai.com

Adresse

  • Raum 301, Kechuang Building Center
    Western Xiange Road, Stadt Anyang,
    Provinz Henan, China

Teilen Sie uns Ihre Anforderungen mit. Wir werden die besten Produkte mit Ihnen verbinden.

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Wir heißen Sie herzlich willkommen, unser Unternehmen jederzeit zu besuchen. Ich glaube, dass unsere Produktqualität, unser professioneller Service und unser konkurrenzfähiger Preis Sie zufrieden stellen werden. Wir freuen uns auf die Zusammenarbeit mit Ihnen.

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Schnelle Links

  • Telefon:
    +86-15639045272
  • Post:
    wendy@jinblai.com
  • Adresse:Raum 301,
    Kechuang Building Center, Western Xiange Road, Anyang City, Provinz Henan, China

Kontakt mit uns

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