1. Standard Designations

• UNS: S30400

• ASTM: A312/A312M (Seamless & Welded)

• ASTM: A358/A358M (EFW)

• ASTM: A269/A269M (General Service)

• EN: 1.4301

• JIS: SUS 304

2. Chemical Composition (% by weight)

3. Mechanical Properties

4. Corrosion Resistance

• General Corrosion: Excellent resistance to most oxidizing acids and atmospheric exposure

• Pitting Resistance: Good performance in mild chloride environments

• Intergranular Corrosion: May require stabilization in welded condition

• PREN Value: ~19

5. Physical Properties

6. Product Range & Specifications

7. Manufacturing Processes

• Seamless Pipe: Hot finished, Cold drawn

• Welded Pipe: ERW, EFW, TIG Welded

8. Surface Finishes

• Annealed & Pickled: Standard mill finish

• Mechanically Polished: 180G, 240G, 320G, 400G

• Electropolished: High purity applications

• Bead Blasted: Uniform matte finish

9. Typical Applications

• Food and beverage processing lines

• Chemical and petrochemical equipment

• Pharmaceutical and biotech piping systems

• Architectural and structural applications

• Heat exchangers and condenser tubes

• Water treatment and distribution systems

• Automotive exhaust systems

Quality Assurance:

• Hydrostatic testing per ASTM standards

• Eddy current or ultrasonic testing

• PMI (Positive Material Identification)

• Dimension and thickness verification

• Full material traceability

Technical Notes:

• Excellent all-purpose stainless steel pipe

• Good formability and weldability

• Suitable for temperatures up to 870°C (intermittent)

• Cost-effective solution for various applications

• Available in various schedules and sizes

All pipes are supplied with complete test certificates and meet relevant ASTM/ASME standards for quality and performance.