ASTM A210 Gr.C Seamless Boiler Tube - Medium-Carbon Steel for High-Pressure Boiler & Superheater Applications
ASTM A210 Gr.C Seamless Boiler Tube - Medium-Carbon Steel for High-Pressure Boiler & Superheater Applications
YUHONG Group, with over 35 years of industrial expertise and a global supply network serving 85 countries, specializes in manufacturing high-performance steel tubing for critical power generation applications. Our ASTM A210 Grade C Seamless Boiler Tubes are engineered from medium-carbon steel to deliver superior strength and reliability in high-pressure boiler and superheater systems. We ensure full compliance with international standards, rigorous quality control, and complete traceability for all our products, providing dependable solutions for demanding thermal applications worldwide.
Chemical Composition Requirements (Grade C)
| Element | Composition (%) |
| Carbon, max | 0.35 |
| Manganese | 0.29 - 1.06 |
| Phosphorus, max | 0.035 |
| Sulfur, max | 0.035 |
| Silicon, min | 0.1 |
Mechanical Properties (Grade C)
| Property | Requirement |
| Tensile Strength, min | 70 ksi (485 MPa) |
| Yield Strength, min | 40 ksi (275 MPa) |
| Elongation in 2 in., min | 30% |
| Hardness, max | 89 HRB or 179 HB |
Standard Test Requirements
| Test Type | Requirement |
| Tension Test | 1 test per lot (≤50 tubes); 2 tests per lot (>50 tubes) |
| Flattening Test | On specimens from each end of one tube per lot |
| Flaring Test | On specimens from each end of one tube per lot |
| Hardness Test | On two tubes from each lot |
| Hydrostatic Test | On each tube (or NDE as specified) |
Key Product Advantages
- Higher Strength for Demanding Service: Grade C provides minimum tensile strength of 70 ksi (485 MPa) and yield strength of 40 ksi (275 MPa), offering superior mechanical properties for high-pressure boiler and superheater applications compared to Grade A-1.
- Excellent High-Temperature Performance: The medium-carbon steel composition with killed steelmaking practice ensures reliable performance in elevated temperature service conditions.
- Good Formability and Weldability: Tubes withstand expanding, beading, forging, welding, and bending operations required during boiler installation and maintenance.
- Stringent Quality Assurance: Each production lot undergoes comprehensive testing including tension, flattening, flaring, and hardness tests to ensure material integrity and performance reliability.
- Full Compliance with International Standards: Manufactured in strict accordance with ASTM A210 requirements, ensuring quality consistency and safety for power generation equipment.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.