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ASTM A671 CC65 for Low-Temperature Service
The ASTM A671 CC65 specification defines electric-fusion-welded steel pipes fabricated from pressure vessel quality plates, specifically designed for atmospheric and lower temperatures where superior notch toughness is required.
|
Technical Parameter |
Specification Detail |
|
Product Type |
LSAW (Longitudinal Submerged Arc Welded) |
|
Standard / Grade |
ASTM A671 CC65 (A516 Gr. 65 Plate) |
|
Nominal Diameter |
DN700 (28-inch / 711.2mm) |
|
Tensile Strength |
450 - 585 MPa (65 - 85 ksi) |
|
Yield Strength |
Minimum 240 MPa (35 ksi) |
|
Heat Treatment |
CL12 (Stress Relieved) / CL22 (Normalized) |
Huayang's DN700 LSAW pipes leverage high-precision German molding technology and rigorous NDT protocols, ensuring exceptional weld integrity and dimensional accuracy for critical low-temperature energy infrastructure and high-pressure fluid transmission.
Engineered Reliability: Huayang's Advanced LSAW Manufacturing for CC65 Grade
Huayang Steel Pipe integrates state-of-the-art longitudinal submerged arc welding (LSAW) production lines to meet the stringent requirements of ASTM A671 CC65. Utilizing pressure vessel quality A516 Grade 65 plates, our DN700 pipes exhibit a refined grain structure and optimized manganese-to-carbon ratios, providing a minimum yield strength of 240 MPa while maintaining excellent ductility at sub-zero temperatures. Our facility employs British CT METORI digital control systems and automated ultrasonic testing (AUT) to guarantee 100% penetration and flawless weld seams. With an annual LSAW capacity of 300,000 tons and certifications including API 5L and CE, Huayang delivers dimensionally stable, corrosion-resistant piping solutions that surpass international safety standards for cryogenic and atmospheric service environments.
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