Grade B Hot Rolled Seamless Steel Pipe is a fundamental industrial piping solution manufactured through the hot rolling process at or above the steel's recrystallization temperature. This method produces pipes without any welded seam, resulting in a uniform structure that offers superior strength, pressure integrity, and reliability for demanding applications
Products Description
| Product | Grade B Hot Rolled Seamless Steel Pipe |
| Manufacturing | Hot rolled |
| OD | 1/2"~36"(21.3~914mm) |
| Thickness | 0.055"~2"(1.65~50mm) |
| Ends | bevel or plain or groove |
| Coating | Bare, black painting, FBE, Epoxy , 3LPE,3LPP... |
Features & Specifications
Material & Grades: These pipes are primarily made from carbon steel. Common material grades include 10#, 20#, 45#, Q345, and conform to international standards such as ASTM A53 Grade B, ASTM A106/SA106 Grade B, and API 5L Grade B.
Manufacturing Process: The hot-rolled technique ensures good mechanical properties and a wider range of achievable dimensions compared to cold-drawn methods.
Surface: Typically supplied in a black (mill) finish. Various surface treatments like black painting, varnish, or epoxy coating. FBE, 3PE, 3PP are available for enhanced corrosion protection.
Workshop
Performance Advantages
High Structural Integrity: The seamless construction eliminates weld seams, which are potential weak points. This provides excellent uniformity, enhanced pressure-bearing capacity, and improved safety under high-stress conditions.
Good Mechanical Strength: Grade B designation ensures a specified minimum yield strength and tensile strength, making it suitable for structural applications and pressure containment.
High-Pressure Resistance: Ideal for conveying fluids and gases under high pressure. Its robust construction ensures reliability in critical systems.
Smooth Internal Surface: The manufacturing process results in a relatively smooth bore, which minimizes flow resistance and pressure drop, improving transportation efficiency and reducing scaling.
Versatility & Durability: Exhibits good performance across a range of temperatures and environments. It offers reliable durability for long-term industrial use.
Applications
Grade B Hot Rolled Seamless Steel Pipe is extensively used across multiple heavy industries:
Oil & Gas Industry: For gathering lines, transmission pipelines, and casing.
Petrochemical & Chemical Plants: Transporting raw materials, products, and catalysts under pressure.
Power Generation: In boiler systems, heat exchangers, and steam lines.
Construction & Infrastructure: As structural components and for fluid transportation in large buildings.
Mechanical Engineering: For manufacturing hydraulic cylinders, bearings, and other high-strength mechanical parts.
quality control
ASTM A53 A106 API 5L Seamless Steel Pipes undergo stringent quality control per standard requirements:
* Hydrostatic Pressure Test
* Non-Destructive Test (Eddy Current, Ultrasonic)
* Chemical composition test
* Mechanical Property Test
* Dimension & Visual Inspection
* Third party inspection before shipment accepted
our Advantage
* High quality assured & Fast delivery.
* Rich experiences(23+years) in Technics/Production/Post-sales.
* Technical & full set of documents support (API 5L, ISO, MTC, ITP &MPS .etc)
shipment
Contact
Mr. Kevin
Tianjin shenzhoutong steel pipe co.,ltd
kevin@tjshenzhoutong.com
Mob/whatsapp/wechat +86 15267768016
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