Stainless Steel Sheet
Cunrui supplies stainless steel sheet for manufacturers, fabricators and industrial distributors working with stainless steel components and assemblies. The range covers 300 series, 400 series and duplex grades, together with commonly specified cold-rolled, hot-rolled and polished surface finishes.
For sheet applications, the material specification needs to match the way the sheet will be processed. Laser cutting, bending, stamping, welding and polishing place different requirements on the steel. Thickness tolerance, surface condition and material grade can all affect the result after fabrication.
Cunrui therefore supplies stainless steel sheet against a defined material specification rather than treating every sheet application in the same way.
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Specifications
| Item | Specification |
| Product | Stainless Steel Sheet |
| Austenitic Grades | 304 / 304L / 316 / 316L / 321 / 310S |
| Ferritic Grade | 430 |
| Martensitic Grade | 410 |
| Duplex Grades | 2205 / 2507 |
| ASTM Standard | ASTM A240 |
| ASME Standard | ASME SA240 |
| European Standard | EN 10088-2 |
| Japanese Standard | JIS G4304 / JIS G4305 |
| Surface Finish | 2B / BA / No.1 / No.4 / HL / 8K |
| Thickness | 0.3–6.0 mm |
| Standard Lengths | 2000 / 2438 / 3000 / 4000 mm |
| Standard Widths | 1000 / 1219 / 1500 mm |
| Edge | Mill Edge / Slit Edge |
| Inspection | Chemical Composition / Tensile Test / Dimensional Inspection / Surface Inspection |
| Certificate | EN 10204 3.1 MTC |
| Traceability | Heat Number |
Advantages
Consistent Material for Fabrication
Sheet is often the starting material for a finished component. Variations in thickness, flatness or surface condition can show up later during cutting, bending or forming. Cunrui focuses on these basic material characteristics before the sheet reaches the fabrication stage.
A Practical Range of Stainless Steel Grades
The material range covers commonly traded grades such as 304, 304L, 316, 316L, 321, 310S, 410, 430, 2205 and 2507. This gives buyers room to select the alloy based on the actual service environment and fabrication method.
Surface Finish Matched to the Job
A 2B sheet intended for industrial fabrication has different requirements from a No.4 sheet used on a visible architectural surface. Cunrui supplies several surface conditions so the material does not need unnecessary finishing work after delivery.
Fabrication-Oriented Material Selection
For a component that will be formed, welded or deep-drawn, alloy selection matters as much as corrosion resistance. Austenitic grades are often preferred where ductility and forming performance are important, while other grades are chosen for strength, hardness or temperature service.
Material Traceability
For industrial orders, the heat number provides a link between the material and its inspection documentation. Cunrui can supply traceable material with MTC documentation where required.
Specification-Based Supply
Grade, product standard, surface finish and dimensional requirements are confirmed before supply. This reduces the risk of receiving material that meets a general description but does not match the fabrication specification.
Surface Finish Options
Surface finish is specified according to the appearance required and the work that will be carried out after the sheet is received.
| Finish | Main Characteristics | Typical Use |
| 2B | Smooth cold-rolled finish | General fabrication, equipment and industrial parts |
| BA | Bright annealed surface | Appliances, decorative components and visible surfaces |
| No.1 | Hot-rolled and heat-treated surface | Industrial equipment and high-temperature service |
| No.4 | Uniform brushed finish | Kitchen equipment, panels and architectural fabrication |
| HL | Directional hairline finish | Interior and architectural applications |
| 8K | Mirror-polished surface | Decorative panels and reflective surfaces |
Applications
Metal Fabrication
Stainless steel sheet is processed into brackets, covers, panels, housings and formed components through cutting, bending, punching and welding.
Food & Commercial Equipment
Sheet material is used for work surfaces, cabinets, processing equipment, sinks and commercial kitchen assemblies where a cleanable stainless surface is required.
Industrial Machinery
Fabricated machine covers, equipment panels, enclosures and components can be produced from stainless steel sheet when carbon steel would require additional corrosion protection.
Chemical Processing
Stainless steel sheet is used in selected tanks, equipment panels and fabricated components where the alloy needs to withstand the chemicals and operating conditions involved.
Architectural Fabrication
No.4, HL and 8K finishes are used where the stainless surface remains visible, including elevator interiors, wall panels, trim and decorative metalwork.
Automotive & Transportation
Stainless steel sheet can be formed into selected exhaust, trim and transportation components where the combination of corrosion resistance and fabrication performance is required.
Marine Equipment
316 and 316L sheet are frequently considered for fabricated components exposed to seawater, salt spray and chloride-containing environments.
High-Temperature Equipment
321 and 310S sheet are used in selected heat-related equipment and components where ordinary general-purpose stainless grades are not the preferred material.
Certifications & Inspection Documents
Cunrui can provide the required quality and material documentation for stainless steel sheet orders, including:
EN 10204 3.1 MTC
01
Chemical Composition Report
02
Mechanical Test Report
03
Dimensional & Surface Inspection
04
Heat Number Traceability
05
FAQ
Q: What stainless steel sheet grades are available from Cunrui?
A: The main range includes 304, 304L, 316, 316L, 321, 310S, 410, 430, 2205 and 2507. Other grades can be discussed according to the material specification required for a project.
Q: Which stainless steel sheet is normally used for fabrication?
A: 304 and 316L are common choices for general fabrication. The better grade depends on whether the component will be bent, welded, exposed to chlorides, used at elevated temperature or subjected to other specific service conditions.
Q: What is the difference between 2B and No.4 stainless steel sheet?
A: 2B is a smooth cold-rolled finish generally used for industrial and fabrication purposes. No.4 has a mechanically brushed surface and is normally chosen when the finished stainless surface will remain visible.
Q: Is 316 sheet suitable for marine applications?
A: 316 and 316L are widely considered for marine environments because their molybdenum content provides better resistance to chloride-related corrosion than 304. The actual service conditions should still be reviewed before final grade selection.
Q: Can stainless steel sheet be supplied with MTC?
A: Yes. EN 10204 3.1 Material Test Certificate can be supplied where required by the purchasing specification.
Q: What information should be included when requesting a quotation?
A: The basic information is grade, thickness, width, length, surface finish, standard and quantity. If the sheet will undergo bending, stamping, welding or another specific process, providing that information helps determine whether the selected grade is appropriate.
Q: What standard applies to stainless steel sheet?
A: Common specifications include ASTM A240, ASME SA240, EN 10088-2, JIS G4304 and JIS G4305. The applicable standard depends on the grade and purchasing specification.
Get a Stainless Steel Sheet Quote
Send Cunrui your grade, thickness, width, length, surface finish, standard and quantity. If the sheet is going into a specific fabrication process, include the process as well. This allows the material specification to be checked before quotation.
Jiangsu Cunrui Metal Products Co., Ltd. is one of the most professional stainless steel sheet manufacturers and suppliers in China, specialized in providing customized products made in China. We warmly welcome you to buy cheap stainless steel sheet for sale here and get free sample from our factory. For price consultation, contact us.
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