Common size on stock, Special sizes needs new production.Can cut to Size, Cut to Shape.
EMERSONMETAL
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The 304 stainless steel sheet is a versatile and high-performing material widely used across various industries, including pharmaceutical, chemical, and dairy. Known for its excellent corrosion resistance and high-temperature endurance, it is crafted from high-quality material that ensures long-lasting performance and reliability.
304 stainless steel sheets are available in a variety of thicknesses and dimensions to meet diverse requirements for industrial equipment, kitchen appliances, or decorative applications. Their smooth surface finish not only enhances aesthetics but also facilitates easy cleaning and maintenance.
| Product Name | High Quality Stainless Steel Plate 304/06Cr19Ni10 Sheet Custom Laser Cutting |
| Surface Treatment | 2B, BA, No. 4, HL, 8K Mirror Finish |
| Grade | 304 |
| Standard | GB,ASTM A240,EN 1.4301,JIS SUS304 |
| Steel Grade Stocking | 301L, S30815, 301, 304N, 310S, S32305, 410, 316Ti, 316L, 316, 321, 410S, 410L, 436L, 347, 430, 309S, 304, 439, 409L, 420J2, 436, 304L, 904L, 444, 317L |
| Shape | Flat Steel Plate,support custom |
| Width | 60-2000mm |
| Thickness | 0.3-20mm |
| Length | 6,9,12m;Cut to Length |
| Processing | Laser Cutting,Waterjet Cutting,Bending,Welding,Punching |
| Technique | Hot Rolled/Cold Rolled（Cold-rolled surface roughness: Ra ≤ 0.4 μm for 2B sheets and ≤ 0.1 μm for BA sheets, meeting food-grade polishing requirements of Ra ≤ 0.8 μm.） |
| Application | Food, Healthcare, Home Appliances, Construction, Chemical Industry, Transportation, Energy |
Standard | C % max | Si max | Mn max | P max | S max | tensile strength（MPa） | yield strength（MPa） | Elongation% |
304 | 0.08 | 1 | 2 | 0.045 | 0.03 | ≥550 | ≥205 | ≥40 |
Corrosion Resistance: Ideal for environments exposed to moisture and corrosive elements.
High Temperature Resistance: Suitable for applications involving elevated temperatures.
Good Formability: Easily shaped and formed to meet specific design needs.
Non-Magnetic: Suitable for applications where magnetism is a concern.
Weldability: Can be easily welded, making it adaptable for various construction and manufacturing processes.
The mainstream production process for stainless steel plates can be divided into four major stages: “steelmaking → hot rolling → cold rolling → finishing.”
Steelmaking: Melt scrap steel, nickel iron, high-carbon chromium iron, and other raw materials to produce crude steel. Subsequently undergo deep decarburization, desulfurization, and alloying to adjust composition to target grades like 304.
Hot Rolling: Slabs are reheated to approximately 1,250°C → descaled with high-pressure water → rough-rolled 5–7 passes on a roughing mill → continuously rolled through 7 stands on a finishing mill, reducing thickness from 200 mm to 2–16 mm to produce hot-rolled black coils. Final rolling temperature maintained above 850°C to ensure uniform austenitic microstructure.
Pickling and Hot-Rolled Annealing: Hot coils undergo shot blasting and pickling to remove scale, followed by continuous furnace annealing at 1010–1080°C + quenching to restore ductility and relieve rolling stresses, yielding No.1 surface hot-rolled sheets.
Cold Rolling: Hot-rolled pickled coils undergo multiple passes through precision rolling mills, reducing thickness to 0.3–3.0 mm. Cold rolling reduction rates reach 60–80%, bringing surfaces close to finished dimensions while enhancing hardness.
Intermediate Annealing & Pickling: Post-cold-rolling work-hardened microstructure requires bright annealing (BA) at 1010–1050°C or continuous annealing + pickling to produce 2B surface finish. Annealing reduces hardness from HV 250 to approximately HV 150, restoring elongation to over 40%.
Flattening & Finishing: 0.5–2% flattening rolling improves sheet shape and controls roughness (Ra ≤ 0.4 μm). Followed by tension leveling, trimming, and slitting to produce 2B/BA surface finished cold-rolled coils.
Surface Finishing: Depending on application, processes include mirror polishing (8K), sandblasting, brushing, titanium plating, or etching to produce decorative panels or elevator panels.
Cutting and Packaging: Coils are cut crosswise or lengthwise into fixed-length flat sheets. Sheets are film-wrapped, corner-protected with paper, and palletized for storage, completing the stainless steel sheet production process.
Q: Will 304 stainless steel plate rust?
A: It may still experience pitting corrosion in environments with chloride ions >200 mg/L (e.g., seawater, de-icing agents) or prolonged exposure to moisture and high temperatures. Regular cleaning with neutral detergents and avoiding contact with carbon steel can significantly extend its service life.
Q: How to quickly distinguish genuine 304 from counterfeit in 30 seconds?
A: ① Magnetic test: Austenitic 304 exhibits only weak magnetism after cold rolling; strong magnetic attraction typically indicates 201.
② Spot test: If Ni-low reagent turns red instantly upon contact, it's 201.
③ Spectrometer gun: Only samples with Cr ≥ 17.5% and Ni ≥ 8.0% meet standards.
Q: For interior decoration, is 304 or 201 more cost-effective?
A: In dry environments with tight budgets, 201 is acceptable; however, for “semi-outdoor” applications like curtain walls, elevators, and kitchens, 304 is still recommended, extending maintenance-free cycles by 3–5 times.
Q: How to select thickness?
A: Decorative: 0.4–1.2 mm; Elevator cabs: 1.5 mm; Roof/curtain walls: 2 mm; Load-bearing tanks/vessels: ≥3 mm. Bending radius R ≥ 1t (t = plate thickness). Excessive thickness doubles tooling costs.
Q: What are the differences between 2B, BA, No.4, and 8K finishes?
A: 2B is cold-rolled matte, general-purpose; BA is bright annealed with ~50% reflectivity, suitable for subsequent titanium coating; No.4 is brushed 150#–240# for scratch resistance; 8K is mirror-finished with Ra≤0.1 μm for high-end decoration.
