ASME SA210 Grade A1 Seamless Carbon Steel Boiler And Superheater Tubes For Boiler And Heat Exchanger Tubesheet

ASME SA210 Grade A1 Seamless Carbon Steel Boiler And Superheater Tubes For Boiler And Heat Exchanger Tubesheet

YUHONG GROUP is a manufacturer and exporter specializing in seamless and welded steel pipes, tubes, and heat exchanger components, with over 35 years of industrial manufacturing experience. The annual output and sales volume exceed 80,000 metric tons, serving engineering, procurement, and construction (EPC) contractors, original equipment manufacturers (OEM), and stockists across more than 85 countries, including the United States, Germany, Italy, the United Kingdom, Canada, Saudi Arabia, France, Poland, Singapore, and South Korea.

ASME SA210 Grade A1 is a seamless medium-carbon steel tube designed for boiler tubes, boiler flues, superheater flues, and safe ends. Manufactured via seamless hot-finished or cold-drawn processes, it is formulated for high-pressure boilers and steam generation systems operating under elevated temperature and stress conditions.

• ASME SA210 / SA210M: Specification for Seamless Medium-Carbon Steel Boiler and Superheater Tubes.
• ASTM A210 / A210M: Standard Specification for Seamless Medium-Carbon Steel Boiler and Superheater Tubes.
• ASME SA450 / SA450M: Specification for General Requirements for Carbon and Low Alloy Steel Tubes.
• ASME Boiler and Pressure Vessel Code (BPVC): Section I (Power Boilers) and Section VIII Division 1 (Pressure Vessels).

• Tensile Strength (Minimum): 415 MPa (60 ksi)
• Yield Strength 0.2% Offset (Minimum): 255 MPa (37 ksi)
• Elongation in 2 in. / 50 mm (Minimum): 30%
• Hardness (Maximum): 79 HRB / 143 HBW
• Manufacturing Condition: Hot-Finished or Cold-Drawn. Cold-drawn tubes undergo post-forming heat treatment (full annealing, isothermal annealing, or normalizing/tempering) at temperatures not less than 650°C (1200°F).

• Outside Diameter (OD): 1/2 in. to 5 in. (12.7 mm to 127 mm).
• Wall Thickness (WT): Minimum Wall Thickness per ASME SA210 / SA450, ranging from BWG 18 to BWG 4 (1.24 mm to 10.92 mm) and heavier wall schedules.
• Length: Single Random, Double Random, or Fixed Cut Lengths up to 24,000 mm.
• Tolerances: Outside diameter, wall thickness, and weight per foot comply with ASME SA450 / SA450M standards.

• Hydrostatic Test: 100% executed on all tubes per ASME SA450; test pressures calculated to produce a stress in the tube wall equal to 75% of the specified minimum yield strength.
• Nondestructive Electric Examination: 100% Eddy Current Testing (ECT) or Ultrasonic Testing (UT) performed in accordance with ASME SA450 / ASTM E213.
• Mechanical Tests: Flattening test, flaring test (for seamless tubes), hardness test, and tension test performed on representative specimens per heat lot.
• Certification: Accompanied by EN 10204 Type 3.1 Mill Test Certificates with full chemical, mechanical, and non-destructive testing traceability.

• Power Plant Boilers: High-pressure utility boilers, industrial power boilers, superheater coils, and reheater banks.
• Steam Generation Equipment: Fossil fuel boilers, heat recovery steam generators (HRSG), economizer tubes, and water wall panels.
• Petrochemical & Refinery Furnaces: Process heaters, steam superheaters, and boiler feed-water preheaters operating under moderate thermal stress.
• Industrial Thermal Facilities: High-temperature fluid heaters, firetube and watertube industrial boilers, and steam distribution systems.