S31600 Stainless Steel Coil Cold Rolled 316 Cold Rolled Stainless Steel Sheet/coil/strip

Key attributes

Products Description

Different from high-temperature focused 310S/309S heat-resistant stainless steel and ordinary chromium-nickel 300 series without molybdenum, S31600 316 is developed specially for all kinds of mildly corrosive working environments where common 304 rusts easily. The core alloy difference lies in extra molybdenum composition inside metallographic structure, which greatly improves anti-pitting and crevice corrosion performance, solving the industry point of spot rust and perforation caused by chloride ion accumulation. Our factory adopts large original cold rolled coil as base material to realize centralized production of sheet, coil and slit strip at the same production line, all finished products share identical chemical composition and mechanical property from same batch of raw materials, effectively avoiding inconsistent quality when buyers source sheet, strip and coil separately from different manufacturers. The whole production line adopts closed protective gas annealing instead of traditional pickling process, reducing surface oxidation defects and improving subsequent stamping, bending and polishing performance of finished materials. All conventional specifications are kept in warehouse stock to support small trial order and large bulk engineering order simultaneously.

Unique Craft & Differentiated Product Performance

The biggest highlight of S31600 cold rolled material is the stable anti-chloride corrosion brought by molybdenum alloying. In coastal salt spray atmosphere, seawater splash environment and workshop with chemical volatile mist, 316 can maintain long-term intact surface without pitting rust, while standard 304 gradually generates corrosion spots under the same service environment. Besides excellent corrosion resistance, it keeps balanced ductility and weldability of austenitic stainless steel, neither too soft leading to easy deformation nor too hard causing cracking during deep drawing and repeated bending.

From production craft perspective, integrated coil base processing brings obvious quality superiority. Original master coil after precision cold rolling and stress relief annealing has uniform thickness tolerance and good plate flatness, no internal residual stress hidden trouble. When slitting into narrow strip, advanced precision slitting unit ensures neat cutting edge without burr, so slit strip can be directly loaded on high-speed automatic stamping equipment without secondary edge trimming, reducing customer’s material waste and processing cost. Fixed-length cut sheet is produced according to customer’s required dimension to minimize leftover during construction and equipment manufacturing. BA bright finished material forms smooth silver surface under sealed annealing environment without oxide scale, which can be directly used for high-standard sanitary and decorative parts without extra polishing; cost-effective 2B surface is more suitable for hidden anti-corrosion lining and structural components.

Detailed Classified Application by Three Product Forms

Raw Master Coil

Large master coil is mainly supplied to large-scale automatic stamping factories and downstream material processing plants. Uncoiling continuous production mode greatly improves production efficiency for manufacturers of chemical equipment housing, environmental protection wastewater treatment accessories and marine standard parts. It is the preferred bulk raw material for mass standardized component production.

Custom Slit Narrow Strip

Custom-width narrow slit strip covers ultra-thin fine strip for electronic components and medium-width strip for hardware fittings. Widely used in precision instrument shims, pharmaceutical equipment sealing parts, marine small fasteners and corrosion-resistant spring accessories. Ultra-narrow strip with strict dimensional tolerance satisfies high-precision miniature part stamping requirements that ordinary wide plate cannot realize.

Fixed-Size Finished Sheet

Cut finished sheet is mostly adopted for on-site construction installation and equipment manual processing. Popular in coastal building exterior wall cladding, chemical tank lining, food factory operating table surface and sewage pool anti-corrosion inner panel. Standard fixed size reduces on-site cutting workload and speeds up engineering construction progress.

Multi-industry Detailed Application Scenarios

1. Marine & Coastal Construction Industry: Used for yacht interior decorative parts, offshore platform auxiliary structural plates, coastal villa guardrail, seaside landscape metal components and seawater pipeline inner lining to resist long-term sea wind and saltwater erosion.
2. Pharmaceutical & Food Sanitary Industry: BA bright 316 sheet and strip meet food-grade contact standard, widely applied in pharmaceutical production equipment, beverage filling machine inner shell, dairy processing machinery and sterile laboratory workbench, free from harmful substance precipitation under long-term contact with acidic raw materials.
3. Chemical & Environmental Protection Industry: Anti-corrosion advantage makes it ideal material for desulfurization equipment, chemical reagent storage tank inner plate, industrial wastewater treatment equipment casing and waste gas absorption tower lining, adapting to various dilute acid and salt-containing medium working condition.
4. Precision Electronic & General Hardware: Anti-rust narrow strip is processed into electronic sensor structural parts, anti-corrosion terminal accessories and instrument internal fixed shims, keeping stable size and performance in humid workshop environment.

Processing & Storage Maintenance Instructions

All three forms of S31600 cold rolled products have good comprehensive processing performance, suitable for argon arc welding, laser cutting, cold bending and deep drawing forming, no intergranular corrosion occurs at welding seam after normal welding operation. Coil and slit strip are wrapped with moisture-proof anti-rust paper and plastic film before leaving factory; finished sheet is covered with customized PVC protective film to prevent surface scratch during transportation and stacking.

For finished products installed in coastal and corrosive environment, regular fresh water cleaning to wash away accumulated salt residue can effectively extend service life; smooth BA and 2B surface can be cleaned with soft cloth and neutral detergent without strong acid and alkaline cleaning agent. Compared with carbon steel needing regular anti-rust paint brushing, 316 stainless steel almost needs no complicated daily anti-rust maintenance, greatly lowering post-operation maintenance expenditure of projects and finished equipment.

Core Reasons to Select Our Factory’s S31600 Three-in-one Supply

First, molybdenum-containing exclusive formula provides unmatched chloride anti-corrosion performance than all molybdenum-free 304 series, core guarantee for harsh corrosive environment projects. Second, sheet, coil, strip one-stop integrated supply reduces communication cost and procurement cycle for buyers who need multiple material forms at the same time. Third, unified original coil raw material ensures consistent chemical index of all finished products, stable batch quality and low defective rate of downstream finished parts. Fourth, flexible full customization including width, length, inner coil diameter and surface finish can match personalized design of different industries. Fifth, factory direct production eliminates intermediate links to get favorable bulk wholesale price for large project procurement. Sixth, complete mill test certificate and material inspection report can be provided smoothly for global import customs clearance and project acceptance.

Free sample test is available, send your required specification and application field to get targeted wholesale quotation.