1. Standard Designations

• UNS: S31600

• ASTM: A312/A312M (Seamless & Welded)

• ASTM: A358/A358M (EFW)

• ASTM: A269/A269M (General Service)

• EN: 1.4401

• JIS: SUS 316

• GB/T: 06Cr17Ni12Mo2

2. Chemical Composition (% by weight)

 3. Mechanical Properties

 4. Corrosion Resistance

• Chloride Resistance: Excellent resistance to pitting and crevice corrosion

• General Corrosion: Good resistance to a wide range of chemicals and acids

• Marine Environment: Suitable for coastal and marine applications

• PREN Value: 24-26

5. Physical Properties

6 . Product Range & Specifications

7. Manufacturing Processes

• Seamless Pipe: Hot extruded, Cold drawn

• Welded Pipe: ERW, EFW, TIG Welded

8. Surface Finishes

• Annealed & Pickled: Standard mill finish

• Mechanically Polished: 180G-600G

• Electropolished: High purity applications

• Bead Blasted: Uniform matte finish

9. Typical Applications

• Chemical and petrochemical processing

• Pharmaceutical manufacturing

• Marine and coastal architecture

• Food processing equipment

• Heat exchangers and condensers

• Medical equipment

• Chemical transportation

Quality Assurance:

• Hydrostatic testing per ASTM standards

• Nondestructive testing (UT, ET, RT)

• PMI (Positive Material Identification)

• Dimension and thickness verification

• Full material traceability

Technical Notes:

• Superior corrosion resistance to 304 in chloride environments

• Good weldability and formability

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

• Better resistance to sulfuric acid than 304

• Cost-effective for demanding applications

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