Comprehensive Description of ASME SA213 T92 Alloy Steel Pipe

1、 Standards and Basic Attributes

ASME SA213 T92 alloy steel pipe follows the ASME SA-213/SA-213M standard and belongs to high chromium molybdenum alloy heat-resistant steel. It is suitable for high temperature and high pressure environments, such as supercritical boilers and power plant equipment, with a working temperature of ≤ 625 ℃ 14. The composition design has been optimized based on T91, improving creep resistance and durability strength.

2、 Chemical composition and alloy properties

Cr (about 9%), Mo (0.3-0.6%): enhances high-temperature oxidation resistance and corrosion resistance;

V (0.15-0.25%), Nb (0.04-0.09%): Refine grain size and enhance creep resistance;

C (0.07-0.13%), N (0.03-0.07%): Control the carbon content to improve weldability and stabilize the structure with nitrogen element.

3、 Physical and mechanical properties

High temperature performance: Excellent endurance strength, significant creep resistance, suitable for long-term high-temperature working conditions;

Mechanical properties: Tensile strength ≥ 440MPa, yield strength ≥ 30MPa (some data may need to be adjusted according to specific specifications), elongation ≤ 250HB 37;

Surface treatment: usually rust removal, sandblasting or smooth and flat state to ensure corrosion resistance and installation adaptability.

4、 Manufacturing and Technology

Production process: using hot rolling, cold rolling or cold drawing technology, with an outer diameter range of 18-720mm and a wall thickness of 2-100mm, supporting customized cutting and processing;

Delivery status: Normalized treatment to ensure uniform and stable material organization;

Welding requirements: Preheat to 200-300 ℃ and tempering (760-780 ℃) after welding to eliminate stress.

5、 Application Fields

Power industry: High temperature superheaters, reheaters, and main steam pipelines of supercritical boilers;

Petrochemical industry: hydrogenation reactor, high-temperature cracking unit pipeline;

Ships and nuclear power: ship boiler fittings, high-pressure equipment for nuclear power plants.

ASME SA213 T92 alloy steel pipe has become a key material in the energy and chemical fields due to its high temperature strength and corrosion resistance. It is necessary to select the brand and process parameters based on specific working conditions to ensure performance matching.