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  • Tianjin Wanlei Steel Pipe Co.,Ltd

  • TEL: 86-22-65815991

  • FAX: 86-22-25343802

  • CELL: 86-18526839451, 86-18526839452

  • EMAIL: admin@wanleipipe.com

  • WEBSITE: www.seamlesscarbonsteelpipe.com

  • ADD: Room 403, Unit 1, Building 31, Polar Square, Central Business District, Binhai New Area, Tianjin, China (Mainland)

  • 05/Feb

    2026

    Why Do Metal Materials Need Quenching?

    The main function of quenching The core purpose of quenching is to change the metallographic structure inside the metal through rapid cooling, enabling the originally soft, and ...

  • 30/Jan

    2026

    What Are The Mechanical Properties Of Steel Pipes?

    What are the mechanical properties of steel pipes? The mechanical properties of steel pipes are the core evaluation criteria for their load-bearing capacity, safety, and applica...

  • 28/Jan

    2026

    What Is The Tensile Strength Of Steel Pipes?

    What is the tensile strength of steel pipes? The tensile strength of steel pipes is the ability of steel pipe materials to resist tensile loads until fracture, and is one of the...

  • 26/Jan

    2026

    What Is Heat Treatment For Steel Pipes?

    What is heat treatment for steel pipes? The heat treatment of steel pipes is a key process that changes the microstructure of the metal inside the pipe by strictly controlling t...

  • 23/Jan

    2026

    Do You Know How To Choose The Steel Grade For Casing And Tubing

    In the field of oil and gas exploration, casing and tubing are the key pipe materials to ensure drilling safety and achieve efficient oil and gas transportation. The selection o...

  • 22/Jan

    2026

    What Quality Inspections Are Required For Steel Pipes?

    What quality inspections are required for steel pipes? The quality inspection of steel pipes is a full process, multi-level system that runs through the raw materials, productio...

  • 19/Jan

    2026

    What Are The Manufacturing Processes For Pipe Fittings?

    What are the manufacturing processes for pipe fittings? The production process system of pipe fittings is mature and diverse, and different processes determine the final strengt...

  • 19/Jan

    2026

    What Are The Common Pipe Fittings?

    What are the common pipe fittings? There are various types of steel pipe fittings, which are the "joints" and "connectors" that make up a complete pipeline s...

  • 07/Jan

    2026

    What Is Intergranular Corrosion?

    What is intergranular corrosion? It is a selective corrosion that occurs locally along the boundaries of metal grains (grain boundaries). After corrosion, the surface of the mat...

  • 05/Jan

    2026

    What Is Butt Welding?

    What is butt welding? Butt welding is a general term for welding processes and joint forms, specifically referring to the method of connecting two workpieces (usually the end fa...

  • 31/Dec

    2025

    What Is A Flange?

    What is a flange? Flanges are the most commonly used detachable connecting components on pipelines, containers, or equipment. Its core function is to serve as a connection inter...

  • 29/Dec

    2025

    What Are The Forging Processes For Steel Pipes?

    What are the forging processes for steel pipes? The forging process of steel pipes is mainly divided into two categories: directly manufacturing seamless steel pipes through for...