Our 304 Stainless Steel Round Tubes, with 18% chromium and 8% nickel, offer great corrosion resistance. They meet ASTM A269 & A554 standards, have a semi - smooth finish, and dimensions with high accuracy. With good welding and fair machining properties, they're suitable for food, construction, and more.
Our 904L Stainless Steel Pipes, made of low - carbon high - alloy austenitic stainless steel, resist sulfuric acid and chloride - containing media well. They have high - temperature stability and anti - stress corrosion cracking ability. Meeting ASTM B673, they are perfect for chemical, oil, and gas industries.
Limitations: Not suitable for high-chloride scenarios (seawater, road de-icing salts) or strong acids (hydrochloric acid, sulfuric acid), as chloride ions can break down the oxide film and cause pitting corrosion.
(2) Excellent Mechanical Properties for Structural & Fluid Applications
Enables it to withstand internal pressure (e.g., low-pressure water/gas pipelines) and external loads (e.g., handrails, support frames) without deformation or cracking.
Temperature Adaptability:
Operates reliably from -196°C (-321°F) (cryogenic storage) to 800°C (1472°F) (low-temperature industrial ovens).
Avoids brittle failure at low temperatures and maintains stability in moderate heat (not recommended for continuous use above 800°C, as chromium carbide precipitation may reduce corrosion resistance).
(3) Cost-Effective & Widely Available
As a standard grade, 304 round tubes are mass-produced, with a wide range of sizes (common outer diameters: 6mm–300mm, wall thicknesses: 0.5mm–10mm) and surface finishes (2B mill finish, BA bright finish, brushed finish).
Lower cost compared to premium grades (e.g., 904L, 316L), making it ideal for budget-sensitive projects where extreme corrosion resistance is not required.
(4) Non-Magnetic & Aesthetic Appeal
Inherently non-magnetic (or weakly magnetic after cold working), suitable for applications sensitive to magnetic interference (e.g., electronic device housings, medical equipment frames).
Smooth surface finishes (e.g., BA finish with Ra ≤0.4μm) meet decorative needs, such as architectural railings, furniture frames, and kitchen appliances.
(5) Easy Processing & Fabrication
Compatible with standard metalworking processes: Cutting, bending, welding (TIG/MIG welding), and threading.
Welded joints retain ~85% of the base metal’s strength (post-weld passivation restores corrosion resistance), simplifying on-site installation.
