421 Stainless Steel Square Tube
Our 421 stainless steel square tube is engineered for high performance, blending superior corrosion resistance, robust mechanical strength, and precise craftsmanship to meet diverse industrial and construction needs.
Core Advantages
Exceptional durability: Resists rust, chemicals, and harsh operating conditions for long-term reliability.
Precise manufacturing: Uniform wall thickness, tight dimensional tolerance, and smooth inner/outer surfaces ensure easy installation and stable performance.
Versatile applicability: Ideal for industrial piping, structural frameworks, machinery parts, and decorative projects.
Key Specifications
| Parameter | Details |
|---|---|
| Material Grade | 421 Stainless Steel |
| Surface Finish | Annealed, pickled, or polished (customizable) |
| Thickness Range | 1.0–10.0 mm |
| Size Range | 10×10 mm – 100×100 mm (custom sizes available) |
| Mechanical Properties | Tensile Strength: ≥650 MPa; Yield Strength: ≥300 MPa; Hardness: ≤201 HB |
| Quality Standard | Compliant with GB/T, ASTM, and DIN standards |
Application Scenarios
Widely used in construction engineering, chemical processing, water treatment systems, furniture manufacturing, and automotive industries. Whether for structural support or fluid transportation, it delivers consistent performance in both indoor and outdoor environments.
Supply & Service
In-stock availability for quick delivery (3–7 working days for standard sizes).
Customizable dimensions, surface treatments, and packaging to meet specific requirements.
Strict quality inspection throughout production, with full quality certification and VAT invoice provided.
Choose our 421 stainless steel square tube for reliable quality, versatile application, and professional after-sales support.
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