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Premium Seamless Steel Pipes &
Heat Exchanger Tubes

High-quality industrial steel solutions from Joho Steel Co., Ltd – a trusted manufacturer since 1988. Specializing in seamless, ERW, LSAW, SSAW, stainless, alloy, and OCTG pipes for global applications.

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Industrial Grade

Engineered for durability in oil & gas, power, chemical, and construction sectors.

Global Standards

Compliant with API, ASTM, DIN, ANSI, JIS, and other international specifications.

Worldwide Supply

Exported to over 80 countries with reliable logistics and technical support.

Who We Are

Joho Steel Co., Ltd, founded in 1988, is a fully integrated steel group combining production, processing, and international trade. We specialize in manufacturing high-performance carbon seamless steel pipes, boiler and heat exchanger tubes, and pipes for special industrial applications.

With decades of expertise, we serve critical industries including oil & gas, petrochemicals, power generation, shipbuilding, and structural engineering. Our commitment to quality, innovation, and customer service has made us a preferred supplier across global markets.

  • ISO-Certified Manufacturing
  • In-House R&D and Quality Control
  • Anti-Corrosion Coating Services
  • Custom Fabrication & Lengths
Steel Pipe Manufacturing

Our Product Range

Comprehensive selection of industrial steel pipes and tubes meeting international standards for performance and reliability.

API 5L Seamless Steel Pipe

API 5L Seamless Steel Pipe

  • Standard: API 5L, ASTM A53
  • Grade: Carbon Steel
  • OD: Up to 28 inch
  • Thickness: 1–120 mm
  • Application: Oil & Gas Pipeline
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Steel Flanges

Steel Flanges

  • Standards: ANSI, JIS, DIN, BS, GOST
  • Types: Slip-On, Weld Neck, Blind
  • Surface: Galvanized, Painted, Oiled
  • Material: Carbon, Stainless, Alloy Steel
  • Application: Petroleum, Chemical, Power
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Heat Exchanger Steel Tube

Heat Exchanger Steel Tube

  • Standard: ASTM A179, A192, A213
  • OD: 30–200 mm
  • Thickness: 2–10 mm
  • Material: Carbon & Alloy Steel
  • Application: Boilers, Heat Exchangers
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ERW Steel Pipe

ERW Steel Pipe

  • Standard: ASTM A53, API 5L
  • OD: 10.3–609 mm
  • Thickness: 0.5–16 mm
  • Grade: Q235, Q345, Gr.B
  • Application: Engineering, Construction
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LSAW Steel Pipe

LSAW Steel Pipe

  • Process: Double Submerged Arc Welded
  • Shape: Round
  • Application: Underground Bunkers, Pipelines
  • Custom: Lengths & Dimensions
  • Material: Carbon Steel
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Stainless Steel Pipe

Stainless Steel Pipe

  • Sizes: 1/4 inch to 48 inch
  • Grades: 304, 304L, 316, 316L, 904L
  • Tolerance: ±1%
  • Features: Corrosion & Heat Resistant
  • Ends: Beveled, Plain, Threaded
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Alloy Steel Pipe

Alloy Steel Pipe

  • Standard: ASTM A335 (P9, P11, P22, P91)
  • Wall Thickness: 1.2–30 mm
  • Application: Locomotive Boilers, High Temp
  • Form: Seamless, Bright Annealed
  • Custom: Lengths & Finishes
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API 5CT Casing Pipe

API 5CT Casing & Tubing

  • Standard: API 5CT, OCTG
  • Type: Casing, Tubing, Drill Pipe
  • Application: Oil & Gas Wells
  • Material: Seamless Carbon Steel
  • Service: Anti-Corrosion Coating
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Why Choose Joho Steel?

Decades of engineering excellence, strict quality control, and customer-focused service define our global reputation.

Quality Assurance

ISO-certified processes and rigorous testing ensure every pipe meets international standards.

Industrial Expertise

Over 35 years of experience in steel pipe manufacturing for critical infrastructure.

Global Reach

Trusted by clients in over 80 countries with efficient export and logistics support.

Custom Solutions

Tailored dimensions, coatings, and fabrication to meet specific project requirements.

Get in Touch

For product inquiries, quotes, or technical support, visit our official website to connect with our team.

Visit Official Website to Contact

We respond promptly to all inquiries through our official communication channels.

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