Wholesale Stainless Steel Sheet Roll Factory & Компания

Precision Engineering, Advanced Cold-Rolling Technology & Robust Global Supply Chains for Heavy Industry, Infrastructure, and Processing Systems.

Premium Core Product Selection

Direct access to our certified manufacturing output. Engineered to match global quality baselines.

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Global Metal Intelligence

ABOUT OES METAL

Established in 2014, OES Metal has built a reputation as a prominent, professional steel manufacturer and distributor specialized in high-performance metallurgy. Based in Wuxi, Jiangsu—China's primary hub for advanced stainless steel cold rolling and logistics—we operate a modern 5,000 square meter factory equipped with next-generation processing platforms.

Our facility runs continuous daily processing routines including precision slitting, surface texturing, leveling, packaging, and custom cut-to-length processes. With over 100 specialized professionals, we control every chemical and physical parameter of our steel coils and flat stock, ensuring adherence to tight tolerances and high mechanical performance standards.

From initial design specifications to final packaging, OES Metal ensures that you receive the highest quality products and services from start to finish, not only in production, but also in material, weight, size, and surface.

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Global Export Reach

Exporting thousands of tons of high-grade stainless steel to North America, South America, the Gulf Cooperation Council (GCC) countries, Africa, the CIS region, and Southeast Asia. Our dynamic network now covers more than 50/59 countries and territories.

5000+
Square Meter Manufacturing Facility
100+
Dedicated Employees
14+
Years of Industry Experience
59+
Export to 59+ Countries & Regions
12+
Compliance with 12+ International Standards

Engineering and Material Specifications

A technical overview of grades, dimensions, and mechanical limits of stainless steel sheet rolls.

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Austenitic Alloys (304, 316, 321)

These chromium-nickel alloys provide corrosion resistance and ductility. Grade 304 is the baseline for food processing and architectural applications. Grade 316 introduces molybdenum (2-3%) to prevent pitting in chloride environments. Grade 321 is stabilized with titanium to resist intergranular corrosion under high temperatures (up to 800°C).

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Duplex Alloys (2205, 2507)

Duplex stainless steels possess a mixed microstructure of austenite and ferrite in a 50:50 ratio. This dual-phase structure provides double the yield strength of standard austenitic grades along with high resistance to stress corrosion cracking (SCC). Super Duplex 2507 (1.4462 equivalent) features high chromium and molybdenum for marine chemical environments.

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Surface Protection & Finishes

We supply products with a range of finishes: 2B (cold rolled, annealed, and pickled), BA (Bright Annealed for a mirror-like finish), No. 4 (brushed directional finish), and Checker Plate (embossed anti-skid textures). Protection options include PE, Laser PE, and fiber film coatings to prevent surface defects during fabrication.

Steel Grade UNS / EN Designation Chemical Composition Key (%) Tensile Strength (MPa) Yield Strength 0.2% (MPa) Main Applications
304 / 304L S30400 / 1.4301 Cr: 18.0-20.0, Ni: 8.0-10.5 ≥ 515 ≥ 205 Food Industry, Kitchenware, Piping, Architecture
316 / 316L S31600 / 1.4401 Cr: 16.0-18.0, Ni: 10.0-14.0, Mo: 2.0-3.0 ≥ 515 ≥ 205 Marine Environments, Chemical Vessels, Pharmaceutical
321 S32100 / 1.4541 Cr: 17.0-19.0, Ni: 9.0-12.0, Ti: 5x(C+N) min ≥ 515 ≥ 205 Aerospace Exhausts, Heat Exchangers, Boiler Shells
2205 S32205 / 1.4462 Cr: 22.0-23.0, Ni: 4.5-6.5, Mo: 3.0-3.5, N: 0.14-0.20 ≥ 655 ≥ 450 Oil & Gas Pipelines, Chemical Tankers, High-Stress Valves
2507 S32750 / 1.4410 Cr: 24.0-26.0, Ni: 6.0-8.0, Mo: 3.0-5.0, N: 0.24-0.32 ≥ 795 ≥ 550 Desalination Plants, Off-Shore Platforms, Scrubbers

China Factory 4.0: Supply Chain Resilience & Wuxi Metallurgy Hub

How OES Metal leverages smart manufacturing and geographical advantages to secure consistent quality.

Manufacturing Technologies

  • Real-time Thickness Profiling: Automatic gauge control (AGC) systems during slitting and rolling minimize thickness deviation.
  • Stress-Relieving Tension Levelers: Ensures flat sheets and rolls without coil set or crossbow.
  • Automated Slitting Lines: Delivers clean, burr-free edges for downstream fabrication.
  • Dynamic Traceability: Heat-number tracking from steel mills to ready-to-ship rolls.

Optimized Logistics & Geographic Position

OES Metal is located in the Wuxi Industrial Zone (Jiangsu Province), the largest stainless steel distribution center in China. This location connects our processing units directly with domestic steel mills (such as TISCO, BAOSTEEL, and YUSCO), ensuring a steady raw material supply even during periods of market volatility.

Our proximity to major deep-water ports, such as Shanghai and Ningbo, allows for streamlined container loading and bulk break shipping. This reduces overland transportation times and carbon footprints, helping us meet delivery schedules across the CIS, Gulf, Europe, and the Americas.

By implementing a Factory 4.0 management system, we integrate our inventory software directly with shipping carriers. This provides international buyers with transparent lead times, accurate weight certificates, and automated customs documentation.

Macro-Industry Solutions & Practical Applications

Tailored metallurgical configurations designed for specific industrial operational stresses.

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Petrochemical & Gas Processing

High temperatures and acidic compounds require reliable alloy chemistry. Our Duplex 1.4462 (2205) and Stabilized 321 rolls are used in heat exchangers, distillation columns, and flare stacks. They resist high-temperature oxidation and stress corrosion cracking (SCC) under cycling pressure conditions.

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Offshore & Marine Infrastructure

Chloride environments speed up localized pitting and crevice corrosion. Super Duplex 2507 sheets and ASTM A276 bars from our factory provide high mechanical strength and PREN (Pitting Resistance Equivalent Number) values above 40, helping extend the operational lifespan of offshore oil platforms and coastal water intake systems.

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Sanitary, Medical & Food Processing

Hygiene standards require smooth, non-porous surfaces. Our Mirror 304/316 Slitting Coils and Bright Annealed (BA) tubes are processed to keep surface roughness (Ra) below defined thresholds. This prevents bacterial adhesion and simplifies clean-in-place (CIP) procedures.

OES Steel Best Sellers & Product Lines

Original featured inventory, including structural rods, flat bars, high-precision strips, and seamless piping solutions.

Stainless Steel Flat Bars & Rods Precision Strips & Slit Coils Tubes & Pipes
316 ASTM A276 Stainless Steel Flat Bar

316 ASTM A276 Stainless Steel Flat Bar

Provides tensile strength and corrosion resistance for structural framing in marine environments and chemical processing plants.

304 Stainless Steel Round Bars

304 Stainless Steel Round Bars

Standard grade bars suitable for machining, valve shafts, and threaded rods where strength and formability are required.

Precision Stainless Steel Strip

Precision Stainless Steel Strip

Ultra-thin, tight-tolerance strips designed for electronic shielding, diaphragms, springs, and precision industrial stampings.

Mirror Stainless Steel 304 Slitting Coil

Mirror Stainless Steel 304 Slitting Coil

Provides a reflective No. 8 mirror finish, ideal for architectural trim, cleanrooms, and aesthetic exterior detailing.

304 Stainless Steel Hexagon Bars

304 Stainless Steel Hexagon Bars

Ideal for fasteners, nuts, bolts, and fittings. High machinability and consistent grain structure make these bars standard in production shops.

Stainless Steel Square Rod Bar

Stainless Steel Square Rod Bar

Offers torsional strength for shafts, keys, and structural supports in heavy machinery assembly.

ASTM A276 Stainless Steel Bar Grade 304

ASTM A276 Stainless Steel Bar Grade 304

Fully compliant with ASTM A276 testing parameters, providing high yield limits and certified mechanical properties.

321 Stainless Steel Bars Bright Drawn

321 Stainless Steel Bars Bright Drawn

Titanium-alloyed bars designed for high-stress applications in elevated temperatures, showing high creep resistance.

Global Procurement, Sourcing, & Risk Mitigation

Reliable shipping prep, international standards compliance, and localized support for global buyers.

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Standard Sea-Worthy Packaging

We package rolls with moisture barriers and strong outer steel strapping. Sheets are packed on sturdy wooden pallets, using edge protectors and VCI (Volatile Corrosion Inhibitor) plastic wrap to prevent moisture oxidation during long ocean voyages.

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Testing & Documentation

Every shipment is accompanied by a Material Test Certificate (MTC) per EN 10204 3.1. This certificate details chemical analysis (carbon, manganese, phosphorus, sulfur, chromium, nickel, molybdenum) and mechanical test data (yield, tensile, elongation, hardness).

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Sanctions & Customs Compliance

We supply legal documentation for transit through various customs zones (CIS, EU, GCC, Americas). This includes EUR.1, certificates of origin, and compliance paperwork to help minimize clearing delays at import terminals.

Technological Roadmap & Future Outlook

Our long-term commitment to process refinement, green metallurgy, and higher-precision dimensions.

Decarbonization & Green Steel Initiatives

OES Metal is progressively moving toward lower-carbon production methods. We work closely with raw material suppliers who utilize scrap-metal recycling processes in electric arc furnaces (EAF). These furnaces operate on clean electricity, reducing the carbon footprint of our base rolls.

Additionally, we utilize closed-loop acid recycling systems within our picking lines. This helps recover chemicals and minimizes waste by-products, helping us align with international environmental directives.

Precision Cold Rolling Limits

Our engineering team continues to refine our processing capability for ultra-thin stainless steel foils. Our target roadmap includes producing cold-rolled strips down to 0.03mm thickness with high flatness tolerances, which are increasingly requested for hydrogen fuel cell plates and next-generation battery components.

Research Projects (2025-2030)

  • AI-assisted surface inspection: High-speed optical cameras identify and flag cosmetic blemishes on BA and mirror rolls in real-time.
  • Advanced Duplex Alloys: Developing low-nickel lean duplex grades to provide stable pricing options during nickel market volatility.
  • Automated Packaging: Robotic wrapping stations help reduce dispatch times while maintaining secure packaging.

Frequently Asked Questions & Purchasing Inquiries

Clear answers to technical, commercial, and logistical queries regarding our stainless steel products.

What is the difference between 304 and 316 stainless steel rolls?
The main difference is the addition of 2-3% molybdenum in 316 stainless steel. Molybdenum increases resistance to pitting and crevice corrosion in chloride-heavy environments (like marine structures or chemical vessels). Grade 304 is suitable for general applications, food preparation, and structural elements that do not face direct exposure to salt spray or strong chemicals.
What tolerances do you guarantee on cold-rolled stainless steel coils?
We manufacture to international standards, including ASTM A480/A480M and EN ISO 9445. For thickness, our standard precision tolerance for thin rolls (under 1.0mm) is within +/- 0.02mm. For width, we maintain slitting tolerances within +/- 0.1mm. If you have tighter dimensional requirements, please share your specifications with our engineering team prior to placing your order.
How does OES Metal protect mirror surfaces from scratches during transport?
For high-finish sheets and coils (such as BA, No. 4, and Mirror finishes), we apply protective adhesive film (PE, double PE, or fiber laser PE film). This protective layer shields the surface from mechanical friction during transport and subsequent processing. We recommend keeping the film on the material during shearing, stamping, or bending, and removing it only after final assembly is complete.
What test certifications do you provide with shipments?
All shipments are accompanied by a Mill Test Certificate (MTC) in accordance with EN 10204 3.1. The document details the chemical analysis, mechanical property test results (tensile strength, yield strength, elongation, and hardness), heat numbers, and compliance with the relevant ASTM, ASME, or EN standards.
What is the MOQ (Minimum Order Quantity) for wholesale pricing?
Our standard Minimum Order Quantity (MOQ) is 3 to 5 metric tons per size/grade, depending on the current production schedule and thickness requirements. For special duplex alloys (such as 2205 or 2507), the MOQ may vary based on raw material availability. Please contact our sales team to discuss trial order possibilities.

News and Corporate Blogs

Insights into material selection, industry standards, and best practices for metal sourcing.

The Complete Guide to 4x8 Stainless Steel Sheets

The Complete Guide to 4×8 Stainless Steel Sheets

Discover how to select the right thickness, grade, and finish for industrial installations without overpaying.

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304 vs 316 Stainless Steel comparison

304 vs 316 Stainless Steel: Crucial Differences

A detailed look at chemical composition, corrosion limits, and cost trade-offs between these common grades.

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Is 309 stainless better than 304?

Is 309 stainless better than 304?

Analyzing these austenitic stainless steels to determine which is better suited for high-temperature and high-oxidative applications.

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