300 Series Stainless Steel Square Tubing 32mm-300mm Diameter Bending & Welding Services Available
ZCXH
Shandong,China
10-20 days
1000 tons/ month
Supplier highlights:This supplier mainly exports to the Democratic Republic of Congo, the UK, and Brazil. They offer full customization, design customization, and sample customization services, and have product certifications.
1. Excellent Corrosion Resistance (Core Advantage of 300 Series)
300 series stainless steel (austenitic stainless steel) owes its anti-corrosion performance to its high chromium (Cr ≥ 18%) and nickel (Ni ≥ 8%) content, forming a dense chromium oxide film on the surface to block corrosive media:
Broad Resistance to Harsh Environments:
Resists common corrosive substances: Neutral media (tap water, groundwater), mild acids (vinegar, dilute sulfuric acid), alkalis (detergents, dilute sodium hydroxide), and salts (seawater, road de-icing salts).
Grade-specific enhancements: 316/316L adds molybdenum (Mo ≥ 2%), further improving resistance to chloride-induced corrosion (critical for coastal/marine projects or chemical processing).
Long-Term Durability: Maintains structural integrity and appearance for 15–30 years in outdoor/industrial environments (vs. 3–5 years for carbon steel), eliminating frequent maintenance or replacement costs.
2. Stable Mechanical Properties for Load-Bearing & Stress Resistance
The austenitic structure of 300 series stainless steel ensures balanced strength, ductility, and temperature adaptability, making the square tubing suitable for structural and pressure-bearing applications:
High Strength & Ductility:
304 grade: Tensile strength = 515–690 MPa; Yield strength ≥ 205 MPa; Elongation ≥ 40%. It can withstand external loads (e.g., building facades, handrails) and internal pressure (e.g., low-pressure fluid pipelines) without deformation or cracking.
316L grade: Slightly higher toughness, suitable for low-temperature environments (down to -196°C) without brittle failure.
Wide Temperature Range: Operates reliably between -196°C / -321°F (cryogenic applications) and 800°C / 1472°F (high-temperature scenarios like industrial ovens), maintaining mechanical stability without performance degradation.
3. Versatile Bending Services for Custom Shapes
Professional bending services expand the tubing’s design flexibility, enabling it to fit irregular or curved structural needs:
Precision Bending Capabilities:
Supports both cold bending (for small radii, 32mm–100mm diameter tubing) and hot bending (for large radii or thick-walled tubing, 100mm–300mm diameter), with bending angles ranging from 0° to 180° and radius tolerances ≤ ±5%.
Avoids structural damage: Controlled bending processes (e.g., mandrel bending) prevent wrinkling, cracking, or thinning of the tube wall, ensuring post-bending strength remains ≥ 90% of the original.
Application-Focused Shapes: Produces custom curves, arcs, or U-bends for scenarios like:
Architectural railings (curved stair handrails).
Marine equipment (pipe loops for shipboard fluid systems).
Industrial machinery (bent frames for compact layouts).
