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On-Site Inspection For Stainless Steel Tubing ASTM A249 A269 A312

PIPE
January 05, 2026
Category Connection: Stainless Steel Pipe Flanges
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Tags:
#Threaded Pipe Flange #Weld Neck Flange #Flat Face Flange
Brief: In this video, we take you on-site to witness the inspection process for ASTM A249, A269, and A312 welded stainless steel tubing. You'll see how these critical industrial tubes are verified for quality, dimensions, and performance, including demonstrations of non-destructive testing methods and the superior finish of BA tubes.
Related Product Features:
  • Manufactured to ASTM A249, A269, and A312 standards for rigorous quality and performance in industrial applications.
  • Made from austenitic stainless steel grades like 304/304L and 316/316L for excellent corrosion resistance.
  • Offers high strength, durability, and good formability and weldability for various service conditions.
  • Available with a BA (Bright Annealed) finish for a smooth, clean, and bright surface without mechanical polishing.
  • Provides superior surface cleanliness and precise dimensional accuracy, such as ±0.05mm.
  • Supplied in both welded and seamless forms to suit different application requirements.
  • Undergoes stringent non-destructive testing including eddy current, hydrostatic, and flaring tests.
  • Covers a wide size range for applications from instrumentation to boilers and chemical plants.
FAQs:
  • What is the main difference between ASTM A249 and ASTM A269?
    ASTM A249 specifically covers welded austenitic stainless steel tubes for boilers, superheaters, heat exchangers, and condensers, while ASTM A269 covers both seamless and welded tubes for general corrosion-resisting and temperature service and is common for BA tubes.
  • Can ASTM A312 tubes be used for high-pressure applications?
    Yes, ASTM A312 tubes are designed for general corrosion-resisting and high-temperature service and can be used in various pressure applications, though specific high-pressure roles may require standards like A209 or A249, with selection based on applicable codes.
  • What does 'BA' mean in the context of stainless steel tubing?
    BA stands for Bright Annealing, a process where the tube is annealed in a controlled atmosphere to prevent oxidation, resulting in a smooth, bright, and clean surface ideal for high-purity applications without further polishing, commonly specified under ASTM A269.
  • What are the common material grades under ASTM A249, A269, and A312?
    The most common grades are 304/304L and 316/316L, with others including 321/321H, 347/347H, 310S, and duplex steels, selected based on specific corrosion and temperature requirements.
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