ASTM A240 316LMod Stainless Steel Plate Enhanced Pitting Resistance For Harsh Environments

PRODUCT OVERVIEW: 316L MOD STAINLESS STEEL
Advanced Chloride Resistance for Demanding Environments

Material Identity:

• Common Names: 316L Mod, 316L Enhanced, Super 316L

• Standard Designations:

  • UNS S31653

  • EN 1.4429

  • ASTM A240 (Grade S31653)

  • Werkstoff Nr. 1.4429

Enhanced Chemistry – The Performance Edge:

Performance Highlights:
✅ Extreme Chloride Resistance

• Withstands concentrated chlorides, acids, and sulfides better than standard 316L

• Critical Pitting Temperature (CPT): ≥35°C vs. 25°C for 316L (per ASTM G48)

✅ Strength-Preserving Corrosion Protection

• Yield Strength: ≥250 MPa (vs. 170 MPa for 316L)

• Tensile Strength: ≥530 MPa

• Maintains ductility: Elongation ≥40%

✅ Fabrication-Friendly

• Excellent weldability: Use standard AWS ER316L filler

• No post-weld heat treatment required

• Cold workability comparable to 316L

Targeted Applications:

• Offshore wind turbine foundations & seawater piping

• Chemical tankers & cargo containment systems

• HIPPI (High-Pressure Acid Leach) mining equipment

• Pharmaceutical bioreactors & CIP/SIP systems

• Coastal structural components (bridges, facades)

• Flue gas scrubbers & waste treatment plants

Product Specifications (Plate):

• Thickness: 0.5mm – 150mm

• Widths: 1000mm – 2500mm (custom sizes available)

• Lengths: 2000mm – 12000mm

• Surface Finishes:

  • 2B (Standard mill finish)

  • No. 4 (Brushed)

  • BA (Bright Annealed)

  • 8K Mirror Polish

• Certification: Mill Test Certificates per EN 10204 3.1/3.2

Technical Superiority Metrics:

Why Choose 316L Mod?
▸ 50% longer service life in chloride environments vs. 316L
▸ Reduced maintenance costs in aggressive media
▸ Direct replacement for 316L with no process changes
▸ Qualified for ASME Boiler & Pressure Vessel Code

Supply Capability:

• Global logistics support

• Cut-to-size & CNC machining services

• Just-in-time delivery programs

• Batch traceability guaranteed