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seamless steel pipe
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API 5L GR.B X52 Seamless Steel Pipe 6m Round Black Iron Carbon Gas Transmission Pipeline for Oil and Gas

Surface Treatment Processes

  1. Painting:  

   A protective paint layer is applied to improve corrosion resistance and enhance the appearance of the steel pipe, making it suitable for diverse environments.

  1. Plastic Coating:  

   The surface of the steel pipe is coated with plastic to provide additional corrosion protection, increase wear resistance, and offer insulation.

  1. Sandblasting:  

   High-pressure sandblasting cleans the steel pipe surface by removing rust and impurities, which enhances the adhesion of subsequent coatings.

  1. Annealing:  

   The steel pipe is heated and then slowly cooled to relieve internal stress, improving its toughness and durability.

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Product Details

The manufacturing process of seamless pipes:

1. Heating: Steel billets are heated to around 1200°C.
2. Piercing: Forming a hollow tube (pipe blank).
3. Rolling: Adjusting the wall thickness and diameter.
4. Sizing: Ensuring dimensional accuracy.
5. Heat Treatment: Relieving stress and improving performance.
6. Finishing: Straightening, cutting, and beveling.
7. Non-destructive Testing: Inspecting the surface and internal quality.
8. Pressure Testing: Ensuring the pipe’s pressure resistance.
9. Surface Treatment: Applying anti-corrosion coatings or galvanization.
10. Packaging: Packaging according to customer requirements for storage.


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This process ensures high strength and durability, making seamless pipes suitable for demanding industrial applications.
Our steel pipe products undergo rigorous quality control to ensure each pipe meets industry standards and customer requirements. No matter what your project needs, we provide the best solutions for you.

Product Description

Item Details
Product Name Seamless Steel Pipe
Standard API 5L PSL 1, ASTM A53, ASTM Sa53, ASTM A106, ASTM Sa106
Grade A, B, X42, X52, X56, X60, X65
Surface Finish Pre-galvanized, Hot-dipped galvanized, Electro-galvanized, Black, Painted, Threaded, Engraved, Socket.
International Standard ISO 9000-2001, CE Certificate, BV Certificate
Packing 1. Big OD: in bulk
2. Small OD: packed by steel strips
3. Woven cloth with 7 slats
4. According to customer requirements
Main Market Middle East, Africa, Asia, Europe, South America, Australia
Country of Origin China
Productivity 5000 Tons per month
Remark 1. Payment terms: T/T, L/C
2. Trade terms: FOB, CFR, CIF, DDP, EXW
3. Minimum order: 2 tons
4. Delivery time: Within 25 days

+8615222547725

admin@sybhsteel.com

+86 15222547725