A213 T11 Chromium Molybdenum Pipe

A213 T11 belongs to seamless steel pipes made of chromium aluminum alloy according to ASTM standards. Its chemical composition contains 1.00-1.50% chromium and 0.44-0.65% molybdenum, and excellent high temperature resistance is achieved by adding trace alloying elements. This material can maintain a yield strength of ≥ 415MPa at a high temperature of 540 ° C, and has excellent soothing reactivity and sulfur corrosion resistance.

The implementation standard ASTMA213-19 specifies dimensional tolerances, mechanical properties, and non-destructive testing requirements, which correspond to the 15CrMoG grade in the domestic GB5310 standard, but there are differences in the heat treatment process.

A213 T11 chromium-molybdenum alloy steel pipes supplied by GNEE Group are available in outer diameters from 1/2 inch to 36 inches (DN25 to DN900) and wall thicknesses up to SCH 160. These pipes offer outstanding oxidation resistance, creep strength, and long-term structural stability at high temperatures, making them ideal for demanding applications in power generation, petrochemical, and high-pressure boiler systems. For pricing details, please contact GNEE Group directly.

A213 T11 Alloy Steel Seamless Tubes Chemical Element Composition Content (%)

A213 T11 Low Alloy Steel Superheater Tube Mechanical Properties

Key technologies of A213 T11 High Pressure Tube production process

A213 T11 seamless steel pipe is produced using a combination of hot rolling and cold drawing processes, with the core procedures including:
1. Tube failure preparation: Pure steel production process using electric furnace smelting LF refining, controlling P and S content ≤ 0.025%
2. Perforation forming: perform oblique rolling perforation at around 1200 ° C, and form a capillary tube through the Mannesmann deformation mechanism
3. Cold processing: Multi pass cold drawing combined with intermediate annealing to achieve a dimensional accuracy of ± 0.1mm for the finished tube
4. Heat treatment process: Normalization tempering treatment ensures that the structure is uniform ferrite pearlite, and the hardness is controlled at HB170-220

A213 T11 Chromoly Steel Alloy Heater Tube Strict quality control system

The testing standards for A213 T11 high-pressure boiler tubes are extremely strict, including but not limited to:

1. 100% eddy current testing for surface defects

2. Ultrasonic thickness measurement tolerance is controlled within ± 5%

3. The hydrostatic test pressure reaches 1.5 times the working pressure

4. Conduct high-temperature tensile tests on each batch

A213 T11 Chrome Moly Alloy Heater Tubes Application field

1. Power industry: As the core material of boiler superheaters, reheaters, and main steam pipelines, T11 steel pipes can withstand long-term erosion from high temperature and high pressure steam. For example, in supercritical thermal power generation units, their stable performance can ensure safe operation for tens of thousands of hours.
2. Petrochemical industry: In the hydrogenation and cracking units of refineries, T11 steel pipes are used to manufacture reactors, heat exchangers, and other equipment to resist the erosion of corrosive media such as hydrogen sulfide. Data from a large-scale refining project shows that equipment made with T11 steel pipes has a service life that is more than three times longer than ordinary carbon steel.
3. Nuclear power field: In the auxiliary systems of nuclear power plants, T11 steel pipes are used for secondary circuit pipelines, and their radiation tolerance has passed multiple international certifications.

A213 T11 heat exchanger tubes for high temperature factory

A213 T11 Alloy Steel Heat Exchanger Tube Packaging and shipping

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