ASTM A240 316LMod Stainless Steel Plate Enhanced Pitting Resistance For Harsh Environments
ASTM A240 316LMod Stainless Steel Plate Enhanced Pitting Resistance for Harsh Environments
Products Specification
| Products Name | 316LMod Stainless Steel Plate |
| Main Grades | Stainless Steel J1, J2, J4, 201, 202, 301, 304, 304H, 304L, 309, 309S, 310, 310S, 316, 316L, 316TI,316Lmod, 321, 321H, 347, 409, 410, 410S, 420, 430, 441, 904L,630,631,254SMO,253MA,2205,2507.etc |
| Thickness | 3.0 - 80.0mm |
| Width | 1250mm,1500mm ,1800mm,2000mm, or custom other size as request |
| Length | 2000mm, 2440mm, 3000mm, 5800mm, 6000mm, AS PER CUSTOMER’S REQUIREMENT |
| Type of Material | Laser Cutting |
| Form | Plate / coil |
| Test Certificate | Yes. |
| Finish | NO.1, 2B, 2D, 2H, 2R, No.4, HAIRLINE, SCOTCH BRITE, SATIN FINISH, NO.8, BA. |
| Brand | TISCO, LISCO,BAOSTEEL , POSCO, JISCO |
PRODUCT OVERVIEW: 316L MOD STAINLESS STEEL
Advanced Chloride Resistance for Demanding Environments
Material Identity:
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Common Names: 316L Mod, 316L Enhanced, Super 316L
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Standard Designations:
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UNS S31653
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EN 1.4429
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ASTM A240 (Grade S31653)
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Werkstoff Nr. 1.4429
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Enhanced Chemistry – The Performance Edge:
| Element | 316L Mod Range (%) | Standard 316L (%) | Benefit of Modification |
|---|---|---|---|
| Molybdenum (Mo) | 2.7–3.3 | 2.0–3.0 | ↑ Pitting/Crevice Resistance |
| Nitrogen (N) | 0.12–0.22 | ≤0.10 | ↑ Strength, ↑ Corrosion Stability |
| Chromium (Cr) | 16.5–18.5 | 16.0–18.0 | Base Corrosion Layer |
| Nickel (Ni) | 12.0–14.0 | 10.0–14.0 | Austenite Stability |
| Carbon (C) | ≤0.030 | ≤0.030 | Weld Integrity |
Performance Highlights:
✅ Extreme Chloride Resistance
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Withstands concentrated chlorides, acids, and sulfides better than standard 316L
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Critical Pitting Temperature (CPT): ≥35°C vs. 25°C for 316L (per ASTM G48)
✅ Strength-Preserving Corrosion Protection
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Yield Strength: ≥250 MPa (vs. 170 MPa for 316L)
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Tensile Strength: ≥530 MPa
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Maintains ductility: Elongation ≥40%
✅ Fabrication-Friendly
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Excellent weldability: Use standard AWS ER316L filler
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No post-weld heat treatment required
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Cold workability comparable to 316L
Targeted Applications:
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Offshore wind turbine foundations & seawater piping
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Chemical tankers & cargo containment systems
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HIPPI (High-Pressure Acid Leach) mining equipment
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Pharmaceutical bioreactors & CIP/SIP systems
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Coastal structural components (bridges, facades)
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Flue gas scrubbers & waste treatment plants
Product Specifications (Plate):
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Thickness: 0.5mm – 150mm
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Widths: 1000mm – 2500mm (custom sizes available)
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Lengths: 2000mm – 12000mm
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Surface Finishes:
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2B (Standard mill finish)
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No. 4 (Brushed)
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BA (Bright Annealed)
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8K Mirror Polish
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Certification: Mill Test Certificates per EN 10204 3.1/3.2
Technical Superiority Metrics:
| Property | 316L Mod | Standard 316L |
|---|---|---|
| PREn (Cr+3.3Mo+16N) | ≥34 | 24–28 |
| Crevice Corrosion | Pass @ 25°C | Fail @ 25°C |
| Stress Corrosion | Resists >60°C | Fails at 40–50°C |
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:
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Global logistics support
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Cut-to-size & CNC machining services
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Just-in-time delivery programs
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Batch traceability guaranteed
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.