ASTM B444 UNS N06625 is a specification standard developed by the American Society for Testing and Materials (ASTM) for seamless and welded nickel-chromium-molybdenum-niobium alloy tubing, specifically designed for use in high-temperature and corrosive environments. The designation UNS N06625 refers to Inconel 625 alloy.
Inconel 625 (UNS N06625): ASTM B444 UNS N06625 is a widely used nickel-based superalloy known for its excellent corrosion resistance (including environments containing chloride ions and sulfuric acid) and high-temperature strength. It contains large amounts of nickel, chromium, and molybdenum, with small additions of other elements such as niobium and titanium. B444 N06625 is versatile and is used in a variety of applications including aerospace, chemical processing, marine engineering, and nuclear industries.
ASTM B444 / ASME SB 444: This ASTM specification covers the standard requirements for seamless and welded tubing made of nickel-chromium-molybdenum-niobium alloy (UNS N06625). These tubings are suitable for general corrosion and heat-resistant applications, especially those involving high temperatures. These tubes can be used in environments ranging from cryogenic to high temperatures.
The ASTM B444 specification includes detailed information on the chemical composition, mechanical properties, dimensions, tolerances, testing, and marking of Inconel 625 pipe. It ensures that the tube meets the required quality standards and is suitable for critical applications where corrosion resistance and high-temperature stability are critical.
