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We Are Chinese Wholesaler of

Stainless Steel Plates & Sheets

We are a wholesaler of stainless steel plates & sheets based in China.Our plates are certified to ASTM A240,EN 10204,ISO 9001,PED 2014/68/EU,CE,and other standards.We can provide material test reports to ensure that the chemical composition,mechanical properties,lot number,and heat treatment conditions meet your requirements.

Stainless Steel Plates & Sheets

Stainless steel plate usually refers to heavy-duty metal with a thickness of 6 mm (0.25 inches) or greater.It provides high strength,durability,and corrosion resistance for industrial,structural,and chemical applications. Thinner options (under 6 mm) are categorized as chapa de aço inoxidável.

Materials of Stainless Steel Plates & Sheets

MaterialGrau
Soft Magnetic AlloyPermalloy (1J85), Hiperco 50 (1J22)
Controlled Expansion AlloyInvar 36 (4J36), 1J36, Kovar (4J29)
Cobalt-Based AlloyHaynes 188 (GH5188)
Super Duplex em Aço InoxidávelF55 (S32760)
Liga à Base de NíquelHastelloy B-3, Hastelloy B-2, Hastelloy C-2000, Hastelloy C-22, Hastelloy C-276, Hastelloy X Monel 400, Monel K-500, Inconel 600 (N06600), Inconel 601 (N06601), Inconel 625 (N06625), Inconel 718 (N07718), Incoloy 800H (N08810), Incoloy 825 (N08825), Inconel X-750, GH3039
(*If your required is not found here, please make a special inquiry imediatamente).

Our Stainless Steel Plates & Sheets Specifications

GrauStandard / UNSAvailable Thickness (mm)Stock Status
Hastelloy B3UNS N106751.0, 2.0, 3.0, 4.0Ready to Ship
Hastelloy B2UNS N106652.0, 3.0, 4.0Ready to Ship
Hastelloy C2000UNS N062003.0, 4.0Ready to Ship
Hastelloy C22UNS N060222.0, 3.0, 4.0Ready to Ship
Hastelloy C276UNS N102760.5, 0.7, 1.0, 1.5, 2.0, 2.5, 3.0, 4.0, 5.0Ready to Ship
Monel 400UNS N044000.5, 1.0, 1.5, 2.0, 3.0, 4.0, 12.0Ready to Ship
Monel K500UNS N055001.5, 2.0, 3.0Ready to Ship
Inconel 600UNS N066000.5, 1.0, 1.5, 2.0, 3.0, 4.0, 6.0Ready to Ship
Inconel 601UNS N066011.0, 1.5, 2.0, 3.0, 5.0Ready to Ship
Inconel 625UNS N066250.5, 1.0, 1.2, 1.5, 2.0, 3.0, 8.0Ready to Ship
Inconel 718UNS N077180.5, 1.0, 1.5, 2.0, 3.0, 4.0, 6.0Ready to Ship
Incoloy 800HUNS N088101.0, 2.0, 2.5, 3.0Ready to Ship
Incoloy 825UNS N088251.5, 1.9, 2.0, 2.7, 3.0, 5.0, 12.5, 12.7, 16.0Ready to Ship
Inconel X750UNS N077500.5, 1.2, 1.5, 2.0, 3.0Ready to Ship
GH3039UNS N066093.0Ready to Ship
Hastelloy X / GH3536UNS N060021.0, 1.5, 2.0Ready to Ship
F55UNS S327602.0, 3.0, 4.0, 5.4, 6.0Ready to Ship
Haynes 188 / GH5188UNS R301881.0, 1.5, 3.0Ready to Ship
Invar 36 / 4J36UNS K936001.0 – 210.0Ready to Ship
1J36UNS K936001.5 – 151.0Ready to Ship
Kovar / 4J29UNS K946100.8 – 105.0Ready to Ship
Permalloy / 1J85UNS N140801.0 – 101.0Ready to Ship
Hiperco 50 / 1J22UNS R3000510.0 – 50.0Ready to Ship
(*To avoid any delays in your project,please send the metal grades,and the dimensions (length width,and thickness) of the plates and sheets you need,along with the quantities,to our email address at [email protected] imediatamente).

What Type of Packaging is Used For Stainless Steel Plates & Sheets?

  • For cold-rolled sheets,we apply a PE/laser protective film to the smooth surface.Inside,the stacked sheets are wrapped in waterproof kraft paper and covered with a layer of plastic film to prevent moisture damage.The bundled sheets are enclosed in a rigid metal cover or a heavy-duty corrugated cardboard frame to absorb impact.The entire package is secured with 4 to 6 high-strength steel straps to prevent shifting.
  • For hot-rolled plates,the heavy coils are sturdy and durable and resistant to surface scratches;therefore,the focus of packaging is on structural stability and sealing.Typically,no surface paper or film is applied,and the coils are stacked directly on top of one another for transport.When necessary,extra-heavy-duty steel straps are used to secure the load tightly to accommodate high-tonnage shipments.Additionally,steel or plastic corner protectors are placed beneath the straps to prevent the straps from breaking or scratching the edges of the plates.

Standard Shipping & Support Systems

  • Wooden Pallets / Skids:
    Hardwood pallets are built to support the specific length and width of the sheets.For international shipping,all wood must undergo heat treatment and carry an ISPM 15 Fumigation Stamp to clear customs.
  • Steel Frames / Pallets:
    For heavy plate stacks or extra-large dimensions,heavy-duty welded steel skids are used.These completely eliminate fumigation delays and offer superior weight capacity.
  • Desiccant Packets (Silica Gel):
    Placed inside the waterproof wrapping of sheet bundles to absorb trapped air moisture and prevent water spots or clouding during ocean freight.

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Manufacturing Methods for Stainless Steel Plates & Sheets

Hot Rolling Method

Hot rolling is the starting point for all stainless steel sheets and the final manufacturing method for industrial-grade thick plates. Stainless steel slabs are heated to a temperature above the recrystallization point and repeatedly rolled between high-pressure rollers in a heavy-duty rolling mill.This process offers high output and efficiency.The finished product has a dull gray surface that is relatively rough and often covered with scale.

Cold Rolling Method

Cold rolling is used to produce thin stainless steel sheets (<6 mm) with high dimensional accuracy and smooth surfaces.
Using hot-rolled stainless steel sheets as raw material,the sheets are further rolled and thinned at room temperature using a cold rolling mill.
The finished products feature precise thickness, smooth and dense surfaces,and high strength.

Cladding / Composite Method

Composite clad plates consist of a base layer of ordinary carbon steel or low-alloy steel,with a thin layer of stainless steel clad to one or both sides.The two metals are bonded together through hot-rolled cladding or explosive welding.The finished product combines the corrosion resistance of stainless steel with the high strength and high thermal conductivity of carbon steel,while significantly reducing the overall material cost.

Mechanical Patterning / Forming

Tread/Diamond Rolling:In the final stage of hot rolling,specially designed rollers with a raised and recessed pattern are used to directly imprint a raised pattern onto the surface of the steel plate.
Embossing:Cold-rolled sheet metal is passed through rollers engraved with patterns to create various raised and recessed three-dimensional textures on its surface.This not only enhances its aesthetic appeal but also improves the sheet’s bending strength.

Surface Modification Methods

These methods use cold-rolled stainless steel sheets as the base material and employ physical or chemical processes to create decorative sheets with entirely different physical properties.
  • Polishing/Satin Finishing (Mechanical Polishing):
    Mechanical friction using sanding belts or abrasives of varying grits is used to produce #4 brushed panels or 8K mirror-polished panels.
  • Chemical Coloring/Vacuum Deposition (PVD):
    Through vacuum ion plating (PVD) or chemical reactions,an extremely thin yet durable oxide film is formed on the stainless steel surface to produce colored stainless steel sheets in shades such as gold,black,and rose gold.
  • Chemical Etching:
    By masking parts of the surface with corrosion-resistant photosensitive ink and immersing the material in acid,the unmasked areas are etched to create patterns of varying depths.This method is commonly used for elevator cabs and high-end building curtain walls.

International Standards of Stainless Steel Plates & Sheets

U.S. Standards

ASTM A240 / A240M:The absolute primary standard. It covers Chromium and Chromium-Nickel flat products used for pressure vessels and general structural applications.
ASTM A480 / A480M:Defines the general rules,dimensional tolerances,and exact naming rules for flat-rolled stainless steel.
ASTM A666:Covers annealed or cold-worked austenitic types specifically optimized for high structural strength.
ASTM A693:Governs precipitation-hardening grades used in high-tech aerospace parts.
ASME SA240:The boiler code standard mirrored directly from ASTM A240,legally mandated for pressure-rated oil,gas,and power grid machinery.

European Standards

EN 10088-2:The standard defining technical delivery rules for general-use stainless steel sheet, plate, and strip.
EN 10028-7:Regulates flat stainless products engineered specifically for pressure containment systems.
EN 10051 / ISO 18286:Sets down strict dimensional tolerances for hot-rolled continuously rolled plates.

ISO Standards

ISO 16143-1:Dictates the technical delivery boundaries of corrosion-resistant flat products engineered for multi-purpose commercial use.
ISO 9328-7:Monitors flat steel plates built directly for safety-critical pressure vessel workloads.

Japanese Industrial Standards

JIS G4304:
Governs all hot-rolled stainless steel plates,sheets,and strips.

JIS G4305:
Governs all cold-rolled stainless steel sheets,plates,and narrow strips.

Chinese National Standards

GB/T 3280:
The definitive baseline governing all cold-rolled stainless steel plates,sheets,and strips.
GB/T 4237:
The definitive baseline governing all hot-rolled stainless steel plates,sheets,and strips.

Inspection and Testing for Stainless Steel Plates & Sheets

  • Chemical Composition Analysis
  • Teste de tração
  • Teste de dureza
  • Bend Testing
  • Intergranular Corrosion Testing
  • Teste de impacto
  • Metallographic / Microstructure Examination
  • Teste Ultrassônico
  • Teste de Penetrante Líquido
  • Teste de partículas magnéticas
  • Handheld PMI Verification
  • Thickness Measurement & Tolerance Check
  • Width and Length Measurement
  • Flatness & Squareness Audit
  • Surface Defect Visual Inspection

Applications of Stainless Steel Plates & Sheets

  • Processamento químico e petroquímico
  • Oil & Gas Engineering
  • Geração de energia
  • Water Treatment & Desalination
  • Automotive Engineering
  • Railway & Transit
  • Marine & Shipbuilding
  • Aeroespacial
  • Commercial Kitchens
  • Food Processing Plants
  • Fabricação de produtos farmacêuticos
  • Facade & Cladding
  • Structural Engineering
  • Material Handling
  • Maquinário industrial

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FAQs

The weight of a stainless steel plate is calculated using the following formula:

weight of a stainless steel plate - formula

Precision Cutting:
High-speed Fiber Laser Cutting (for thin sheets),Plasma Cutting (for thick plates),and Waterjet Cutting (for heat-sensitive alloys).
Forming & Bending:
CNC Press Brake Bending up to custom angles and lengths.
Surface Refinement:
Custom mechanical polishing to achieve #4 Brushed,Hairline,or #8 Mirror finishes,applied with laser-protective PE film.
Edge Processing:
Automated deburring,edge slitting,and beveling for welding preparation.

Sim,every single shipment is accompanied by an EN 10204 3.1 Mill Test Report ensuring 100% heat traceability from the furnace melt.

Cold-Rolled Sheets (<6mm):
Typically maintain an extremely tight tolerance range between ± 0.05 mm and ± 0.15 mm depending on the gauge.
Hot-Rolled Heavy Plates (≥6mm):
Follow a wider tolerance structure (ranging from ± 0.25 mm to over ± 1.0 mm) to account for thermal contraction as the thick metal cools down.

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