ASTM a387 grade 9 steel pipe executive standard: ASTM ASME. ASTM a387 grade 9 steel pipe delivery status: positive + tempered.
Smelting method of ASTM a387 grade 9 steel pipe: electric furnace and LF/VD vacuum furnace external refining method are adopted. All steel plates shall be subject to simulated post weld heat treatment for their test specimens. The process system is: maximum simulated post weld heat treatment: max. PWHT: 690 ± 14*26h. Minimum simulated PWHT: min. PWHT: 690 ± 14*8-2h.
Application scope of ASTM a387 grade 9 steel pipe: it is used in large state-owned and private enterprises such as petroleum, chemical industry, power station and boiler. It is widely used in equipment and engineering components such as reactor, heat exchanger, separator, spherical tank, oil and gas tank, liquefied gas tank, nuclear reactor pressure shell, boiler drum, liquefied petroleum gas cylinder, high-pressure water pipe of hydropower station, spiral case of hydraulic turbine, etc.
ASTM a387 grade 9 steel pipe is used for welding a series of parts such as chromium molybdenum alloy steel plate for boiler and pressure vessel under the standard of American Society for testing and materials.
