304 stainless steel contains 18% chromium and 8% nickel. It has strong resistance to rust and oxidation, can withstand harsh outdoor environments, and is very suitable for long-term use under conditions of high humidity, frequent rainfall, and large temperature differences.

ASTM A249 is a standard specification for welded austenitic stainless steel tubes, mainly used in heat exchangers, condensers, superheaters, and other high-temperature, high-pressure environments. It includes stringent requirements for weld bead flattening, expansion, and corrosion resistance, making it suitable for demanding industrial applications.

ASTM A312 is the standard specification for seamless and welded stainless steel pipes intended for high-temperature and general corrosive service.

904L steel cold drawn tube is a high alloy stainless steel tube with excellent corrosion resistance, mainly used in harsh corrosive environments.

AMS 5529 is a specification established by SAE International for annealed (Condition A) 17-7PH stainless steel sheets and plates. This material is primarily used when high mechanical strength and good corrosion resistance are required after simple heat treatments. It can be further aged to Condition RH950 or CH900 to achieve extremely high strength.

ASTM A554 is the standard specification for welded stainless steel mechanical tubing used in structural, architectural, and decorative applications. For construction and engineering projects in California, ASTM A554 certified tubes ensure code compliance, aesthetic appeal, and long-term performance.