High pressure boiler tubes

High Pressure Boiler Tubes

Product Overview:
High pressure boiler tubes are seamless steel tubes specifically manufactured for the high-temperature and high-pressure conditions found in power plant boilers, superheaters, reheaters, and heat exchangers. These tubes are engineered to deliver superior creep resistance, thermal stability, and oxidation resistance, ensuring safe and efficient operation in extreme environments.

Key Features:

• Standards:

• ASTM A192 / A209 / A210 / A213 / A335

• EN 10216-2 / DIN 17175

• GB 5310 (Chinese standard for seamless steel boiler tubes)

• Materials:

• Carbon steel: 20G, ST45.8/III, SA192

• Alloy steel: T11, T12, T22, P91, 15CrMoG, 12Cr1MoVG

• Stainless steel: TP304, TP316L (for specific high-temp corrosion environments)

• OD Range: 10.2 mm – 114 mm

• Wall Thickness: 1.5 mm – 20 mm

• Length: 5.8m / 6m / 12m or customized

• Type: Seamless (hot-rolled or cold-drawn)

Mechanical Properties (Typical):

• Tensile Strength: 415 – 620 MPa

• Yield Strength: ≥ 205 MPa

• Elongation: ≥ 20%

• Hardness (Alloy Grades): ≤ 250 HB

• Operating Temperature: Up to 650°C (depending on material)

Advantages:

• High strength and creep resistance at elevated temperatures

• Excellent pressure-bearing capacity

• Long service life in continuous high-heat environments

• Superior dimensional accuracy and surface finish

• Compatible with welding, bending, and machining

Applications:

• High-pressure boilers and reheaters

• Steam turbine piping systems

• Superheater and economizer coils

• Thermal and nuclear power plants

• Petrochemical industry and waste heat recovery systems

Quality Assurance:

• hydrostatic and non-destructive testing (UT, ET, RT)

• Heat treatment (normalized, tempered, or quenching+tempering)

• Third-party inspection: SGS, BV, TUV, Lloyd’s

• Mill test certificates: EN10204 3.1 / 3.2

• Export packaging: seaworthy bundles with end caps and labels