304L Stainless Steel Plate

Walmay 304L stainless steel plate is a low-carbon austenitic stainless steel with a carbon content ≤0.03%.

Produced under ASTM, GB/T, and JIS standards, each batch undergoes spectrochemical and salt spray testing. With ready stock in 0.3–16mm thickness, it’s ideal for applications in food processing, pharmaceuticals, chemical equipment, and decorative construction.

  • Ultra-Low Carbon, Anti-Intergranular Corrosion

    Carbon ≤0.03%. No heat treatment required after welding. Walmay testing shows no intergranular corrosion after 650℃ sensitization, ideal for fully welded structures.

  • Fast Delivery from Stock

    Over 500 tons of common specifications (0.5–6mm × 1219/1500mm) available; custom dimensions (e.g., 2000mm width, 8–16mm thickness) deliverable within 5–7 days.

  • Precision Quality Control

    Coils sourced from TISCO and Qingshan; thickness tolerance ±0.02mm (cold-rolled), flatness ≤1.2mm/m; each sheet visually inspected to meet GB 4806.9-2016 food contact standards.

Product Specifications

Chemical Composition (GB/T 1220-2007)
Element C≤ Si≤ Mn≤ P≤ S≤ Cr Ni N≤
Content (%) 0.03 1 2 0.045 0.03 18.0–20.0 8.0–12.0 0.1
Physical & Mechanical Properties
Property Range Standard
Density 7.93 g/cm³ GB/T 7999
Melting Point 1398–1454℃ -
Tensile Strength ≥480 MPa GB/T 228.1-2021
Yield Strength ≥175 MPa GB/T 228.1-2021
Elongation ≥40% GB/T 228.1-2021
Hardness (HV) 150–200 GB/T 4340.1
Salt Spray Resistance (NSS) ≥500h No Corrosion ASTM B117
Specifications & Supply
Process Type Thickness (mm) Width (mm) Length (mm) Surface Finish Tolerance
Cold Rolled 0.3–6.0 1000/1219/1500/2000 2000/2440/3000 2B / 8K / 10K / NO.4 ±0.02mm
Hot Rolled 6.0–16.0 1500/1800/2000 6000 (fixed) NO.1 (Pickled) ±0.1mm

Customization Services:

Slitting (min width 50mm), laser cutting (any shape), PE protective film coating. Mirror finishes (8K/10K) require 5 days pre-order.

Pricing Calculation

Workshop & Manufacturing Machine

Stainless Steel Plate Bending/Stamping Process

Stainless Steel Plates on Storage Rack

Palletized Stainless Steel Plates

Stainless Steel Plate Rolling Line

Precision Thickness Inspection of Stainless Steel Plate

Forklift Loading Stainless Steel Plates for Shipment

Product Applications

  • Food Equipment

    Specification: 1.5mm × 1219 × 2440mm

    Case: Used for juice sterilization tank liners with 2B surface. Walmay’s passivation reduced bacterial growth by 90% and met FDA standards.

  • Architectural Decoration

    Specification: 3mm × 1500 × 6000mm

    Case: Installed in a commercial complex façade with titanium-coated 2B finish. Seam alignment ≤0.5mm ensures superior appearance and atmospheric corrosion resistance.

  • Chemical Storage Tank

    Specification: 8mm × 2000 × 6000mm

    Case: Applied for dilute sulfuric acid tank walls. The NO.1 plate showed no intergranular corrosion post-welding, doubling lifespan compared to 304.

  • Medical Equipment

    Specification: 2mm × 1000 × 2000mm

    Case: Used in hospital sterilization equipment housings with 2B surface, easy to clean and disinfect. Custom-cut per drawing, delivered within 10 days.

FAQs

What makes 304L better than standard 304 stainless steel?
304L has ultra-low carbon content, preventing intergranular corrosion after welding and ensuring longer service life in welded structures.
Can Walmay provide certification for food contact use?
Yes. All 304L sheets meet GB 4806.9-2016 food contact standards and can include passivation or polishing treatment.
What surface finishes are available for 304L plates?
Available finishes include 2B, NO.1, NO.4, 8K, and 10K mirror surfaces, suitable for both industrial and decorative purposes.
How does Walmay ensure the flatness and precision of its 304L plates?
Each sheet undergoes strict quality inspection using TISCO and Qingshan cold-rolled coils, maintaining ±0.02mm thickness tolerance and ≤1.2mm/m flatness accuracy.
What is the typical delivery time for customized 304L plates?
Standard sizes ship within 24 hours. Custom dimensions such as 2000mm width or 8–16mm thickness can be delivered in 5–7 days, with a minimum order of 300kg.
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