United Steel Industry Co., Ltd is a leading manufacturer, exporter, and stockholder of carbon steel pipes in China. Dedicated to delivering high-quality steel pipe solutions, we proudly serve customers across the globe. With extensive expertise in carbon steel pipe manufacturing, our products are widely utilized in industries such as oil and gas, solar energy, water transportation, and construction worldwide.
Carbon steel pipes (CS pipes) are essential components across various industries. They not only fulfill construction demands but also play a crucial role in water transportation, oil and gas pipelines, and structural applications. Carbon steel pipes are available in multiple forms, including seamless, ERW, LSAW, and SSAW pipes. The production method determines whether a carbon steel pipe is classified as seamless or welded:
Seamless carbon steel pipes are manufactured through hot rolling or cold drawing processes, delivering superior strength and airtightness.
Welded carbon steel pipes are produced by rolling steel plates or strips into cylindrical shapes and welding the seams using resistance welding or submerged arc welding techniques.
Key Standards and Specifications for Carbon Steel Seamless Pipes:
API 5L X42-X70
Size Range: 2" – 24"
Schedules: STD, XH, 100, 120, 160, XXH
Grades: PSL1 and PSL2
ASTM A53
Size Range: NPS 1/8 to NPS 26 (DN 6 to DN 650), covering both seamless and welded types
Schedules: SCH40, SCH80
Grades:
S-Type (Seamless): Grade A and Grade B
E-Type (Electric Resistance Welded): Grade A and Grade B
F-Type (Furnace Butt Welded, Continuous Welded): Grade A only
ASTM A106
Size Range: 1/4" – 28" (13.7mm – 711.2mm)
Schedules: SCH40, SCH80
Grades: Primarily Grade B
ASTM A333
Size Range: 1/2" – 24"
Schedules: STD, XH, 100, 120, 160, XXH
Grades: Grade 1 and Grade 6 (Low-Temperature Carbon Steel Seamless Pipe)
Why Choose United Steel Industry for Your Carbon Steel Pipe Needs?
At United Steel Industry, we provide a comprehensive range of carbon steel solutions tailored to meet the diverse requirements of customers around the world. We offer premium-quality seamless and welded carbon steel pipes at highly competitive prices.
Our carbon steel pipes are known for their superior quality and broad size availability, from the smallest dimensions to large-diameter pipes. We are capable of customizing products according to specific customer requirements and consistently adhere to international quality standards, ensuring safe, reliable, and on-time delivery to any global destination.
Our Key Advantages:
- International Quality Assurance:
Certified to ISO 9001 standards, we use carefully selected raw materials, advanced metalworking technologies, and highly efficient production facilities.
- Fast Global Logistics:
We ensure prompt and secure worldwide delivery.
- Tailored Solutions:
We offer customized manufacturing services to meet specific international application needs.
United Steel Industry As the most important steel pipe manufacturer and exporter in China, in the past 20 years, we have completed more than 100 projects, with partners in more than 100 countries, and established relationships with oil and gas and EPC companies in many countries business relationship.
For more information about the product price, catalog and rolling mill inspection certificate,
please consult:Email:Sales@usisteels.com
