316L Stainless Steel Coil BA Bright Annealed Finish ASTM A240 0.3-3.0mm For

Our 316L Stainless Steel Coil BA Bright Annealed Finish is purpose-engineered for Thailand's world-class food processing equipment manufacturing sector, which supplies domestic and export markets across ASEAN and globally. The 316L grade with 2-3% molybdenum addition provides significantly enhanced pitting and crevice corrosion resistance compared to 304, making it the mandatory material for equipment exposed to chlorides, acidic food products, and aggressive cleaning chemicals. The BA (Bright Annealed) finish delivers a mirror-like reflective surface with Ra ≤0.1μm that minimizes bacterial adhesion and facilitates CIP (Clean-in-Place) sanitation protocols essential for food safety compliance under Thai FDA and international HACCP standards.

Our stainless steel coils are manufactured on advanced 20-high Sendzimir cold rolling mills capable of achieving thickness tolerances within ±0.005mm across the full strip width. The production process begins with premium-grade stainless steel slabs sourced from ISO 9001 and ISO 14001 certified steel mills, followed by hot rolling, annealing, pickling, cold rolling, and final bright annealing in continuous horizontal furnaces with protective hydrogen-nitrogen atmosphere. Each coil undergoes rigorous quality inspection including ultrasonic testing for internal defects, spectral analysis for chemical composition verification, tensile testing per ASTM A370, hardness measurement, surface roughness profilometry, and intergranular corrosion testing per ASTM A262 Practice E for 304/304L grades and Practice C for 316/316L grades. The result is consistent, high-quality stainless steel coil suitable for demanding applications in hygienic food processing environments.

• 316L Molybdenum-Grade Corrosion Resistance: 2-3% Mo content provides superior resistance to pitting (PREN ≥24) and crevice corrosion in chloride-containing environments. Passes ASTM A262 Practice C (Huey test) for intergranular corrosion resistance with corrosion rate ≤1.0 mm/year, ensuring long service life in aggressive food processing environments.
• BA Bright Annealed Hygienic Surface: Bright annealed under protective hydrogen-nitrogen atmosphere produces Ra ≤0.1μm mirror-like finish that minimizes bacterial adhesion by 80% compared to 2B finish, meeting 3-A Sanitary Standards and EHEDG guidelines for food contact surfaces in Thailand's export-oriented food processing industry.
• Thailand Food Industry Ready: ACFTA Form E preferential tariff certificate reduces import duties for Thai manufacturers. Laem Chabang deep-sea port delivery with competitive 5-7 day transit, supporting just-in-time supply for Thailand's Eastern Economic Corridor (EEC) food processing equipment cluster.
• Low Carbon for Welding Integrity: Maximum 0.03% carbon content eliminates chromium carbide precipitation during welding, maintaining full corrosion resistance in as-welded condition without post-weld heat treatment, critical for fabricated tanks, vessels, and piping systems.
• FDA & EU Food Contact Compliant: Material specifications and surface finish comply with FDA 21 CFR for food contact materials and EU Regulation 1935/2004, supporting Thai manufacturers exporting food processing equipment to US and European markets.

Sanitary stainless steel tanks and vessels for food and beverage production, CIP (Clean-in-Place) system components, heat exchanger plates for dairy and juice processing, pharmaceutical grade storage containers and process piping, commercial kitchen equipment including industrial cooking kettles, steam tables, and food preparation surfaces, seafood processing line equipment resistant to saltwater and brine solutions, brewery and distillery fermentation tanks, and hygienic conveyor systems for Thailand's canned food, frozen seafood, and ready-to-eat meal export industries.

The superior surface quality and precise dimensional control of our stainless steel coils enable efficient downstream processing across diverse fabrication methods including CNC laser cutting, waterjet cutting, stamping, deep drawing, roll forming, and TIG/MIG welding. The consistent mechanical properties across coil length reduce press setup adjustments and scrap rates in automated production lines. For architectural and decorative applications, the 2B mill finish provides an excellent substrate for subsequent PVD coating, electroplating, or mechanical polishing to achieve mirror, hairline, bead blast, or embossed surface textures. Our technical engineering team provides complimentary material selection guidance including grade recommendation based on service environment corrosivity classification per ISO 9223, formability analysis using forming limit diagrams, and weld procedure specification development for critical fabrication requirements.

Every stainless steel coil is protected with multi-layer packaging: inner PE film wrap directly on the strip surface, intermediate waterproof VCI (Volatile Corrosion Inhibitor) paper, outer heavy-duty waterproof kraft paper, circumferential steel strapping at minimum 4 positions, and radial edge protectors. Coils are oriented eye-to-sky on fumigated ISPM 15 compliant hardwood pallets with full weatherproof shrink wrapping. Each shipment includes comprehensive quality documentation: original mill test certificate (MTC) per EN 10204 3.1 with chemical analysis, mechanical test results, and dimensional report, surface inspection report, and intergranular corrosion test certificate where applicable. We maintain ISO 9001:2015 certified QMS with third-party inspection by SGS, TÜV, or Bureau Veritas available upon request. Full export documentation including Certificate of Origin, Form E preferential certificate, and fumigation certificate ensures smooth customs clearance in Thailand and ASEAN and surrounding markets.