Carbon steel seamless pipe manufacturer & supplier in China

Hunan Standard Steel Co.,Ltd is a leading manufacturer, exporter and stockholder of carbon steel pipes in China. We have always been committed to providing high-quality steel pipes and related products for customers worldwide. Hunan Standard Steel has rich experience in the manufacturing of carbon steel pipes, and its products are widely used in multiple fields such as global oil and gas, solar energy, water transportation, and construction.

Carbon steel pipes (CS pipes), are the main pipe materials used in various industries. They not only meet the requirements of construction but also support water transportation, oil and gas pipelines, and structural applications. Carbon steel pipes also come in various types, such as seamless /ERW/LSAW/SSAW pipes. Different production methods determine whether carbon steel pipes are seamless steel pipes or welded steel pipes. Seamless carbon steel pipes are produced by hot rolling or cold drawing, which can produce pipes with high strength and air tightness. The production of welded steel pipes begins with rolling steel plates or steel strips into cylindrical shapes, and then using resistance welding or submerged arc welding to connect the weld seams.

Common standards and specifications for carbon steel seamless pipes:

API 5L X42-X70:
Size range: 2" - 24"
Schedules: Standard (STD), Extra Heavy (XH), 100, 120, 160, XXH
Grades: PSL1 and PSL2

ASTM A53:
Size range: Covering NPS (nominal pipe size) 1/8 to NPS 26 (DN 6 to DN 650), including seamless and welded types.
Schedules: SCH40, SCH80 Carbon Steel Pipe
Grades: S-type (seamless) : Grade A and Grade B, E-type (electric resistance welding) : Grade A and Grade B, F-type (furnace butt welding, continuous welding) : Only Grade A

ASTM A106:
Size range: 1/4 inch to 28 inches (approximately 13.7mm to 711.2mm)
Schedules: SCH40, SCH80

Grades: mainly Gr.B (Grade B)

ASTM A333:
Size range: 1/2" - 24"
Schedules: Standard (STD), Extra Heavy (XH), 100, 120, 160, XXH

Grade 1/6  (Low Temp) Carbon Steel Seamless Pipe

Why choose us to supply carbon steel pipes?

At Hunan Standard Steel, we offer a wide range of customized carbon steel solutions to meet the diverse needs of global customers. We offer high-quality seamless and welded carbon steel pipes at highly competitive prices.

Our carbon steel pipes feature higher quality and a wide range of sizes, from the smallest to the largest. We can customize the required steel pipes according to customer needs. We always adhere to all the quality standards of the international market to ensure that our products can be delivered safely and on time to all parts of the world.

Our main features:

International quality compliance: ISO 9001 certification highlights our carefully selected top-quality materials, mastery of the most complex metal processing technologies, and the efficiency of our production plants.
Fast transportation: Fast and safe transportation worldwide.

Customized solutions: Capable of customizing pipes for any purpose of international applications according to customer needs.

Read more: Chinese Seamless steel pipe manufacturer and supplier list or Advantages and disadvantages of carbon steel pipe