ASTM-Certified 304/316L/2205 Seamless Tubes | Industrial-Grade Stainless Piping | Factory Direct Bulk Orders

Trusted Stainless Steel Pipe Suppliers Network
Certified ASTM 304/316L/2205 seamless tubes with ±0.1%-0.3% tolerance, serving global stainless steel pipe suppliers across construction, chemical, and medical sectors. Features 2B surface finish and 120-mesh polishing for precision bending/welding applications. Custom decoiling and CNC punching services available for bulk orders.

304 Stainless Steel Pipe Specifications
Industrial-grade 304 stainless steel pipe with 1mm-100mm diameters, engineered for:

• Structural frameworks requiring 4-inch stainless steel exhaust pipe compatibility
• Chemical transfer systems demanding Ra≤0.8μm surface smoothness
• Medical gas lines needing ASME BPE-compliant interiors
  Packaged in seaworthy wooden crates (60x40x40cm) with 7-day global delivery. MOQ 1 ton supports large-scale projects.

4-Inch Stainless Steel Exhaust Pipe Solutions
High-performance 310S/316Ti alloy pipes optimized for:

1. ​Automotive Systems – Mandrel-bent 4" tubing for turbo-back exhaust configurations
2. ​Marine Exhausts – Saltwater-resistant 4 stainless steel exhaust pipe bundles
3. ​Industrial Venting – Welded 4-inch stacks with reinforced hanger brackets
   Includes TIG welding prep and 900°C continuous heat resistance certification.