Haihao Group has successfully delivered a batch of ASTM A106 Grade C seamless steel pipes to a key customer in Russia, reinforcing our reputation as a trusted supplier for critical piping systems in high-pressure and high-temperature environments.
The supplied pipes, sized 180 mm outer diameter with a 28 mm wall thickness, are designed for demanding industrial applications such as oil and gas transmission, power plants, and petrochemical facilities. Manufactured to ASTM A106 Grade C specifications, these seamless pipes meet strict mechanical and chemical requirements to ensure performance and safety under severe operating conditions.
High Pressure ASTM A106 Gr.C Seamless Steel Pipe Manufactured by Haihao Group
Key Product Highlights:
Material: ASTM A106 Grade C — selected for its higher carbon content and increased tensile strength compared to Grades A and B, making it suitable for pressure piping at elevated temperatures.
Dimensions: 180 × 28 mm — thick-walled large-diameter pipe for specialized pipeline installations.
Mechanical Properties:
- Minimum Tensile Strength: 70,000 psi (485 MPa)
- Minimum Yield Strength: 40,000 psi (275 MPa)
Chemical Composition Control:
| Carbon,max | Manganese | Phosphorus,max | Sulfur,max | Silicon,min | Chromium,max | Copper,max | Molybdenum,max | Nickel,max | Vanadium,max |
| 0.35 | 0.29-1.06 | 0.035 | 0.035 | 0.10 | 0.40 | 0.40 | 0.15 | 0.40 | 0.08 |
Carbon content up to 0.35%, manganese adjusted according to carbon content for optimal strength and ductility, in strict compliance with ASTM A106 standards.
Heat Treatment: Pipes are normalized or tempered where required to achieve consistent mechanical properties and enhance service life.
Quality Assurance You Can Rely On:
Haihao Group implements rigorous quality control at every production stage — from raw material selection and precise chemical analysis to mechanical testing and dimensional inspection. Each pipe is supplied with full certification, meeting both ASTM standards and customer-specific requirements, making them ready for the Russian market and beyond.
Serving Demanding Industries:
Our ASTM A106 Grade C seamless pipes are ideal for:
- High-pressure steam lines
- Oil and gas pipelines
- Heat exchangers and boilers
- Chemical processing equipment
With years of experience in manufacturing and exporting seamless steel pipes, Haihao Group remains committed to delivering high-quality products backed by dependable service and on-time delivery. Email:sales@haihaogroup.com
