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| Customization: | Available |
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| Type: | Stainless Steel Sheets |
| Standard: | ASTM, AISI, GB, JIS, DIN, EN |
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304L stainless steel sheet is a versatile, low-carbon variant of the 304 grade, prized for its exceptional weldability and resistance to corrosion, particularly in environments prone to sensitization. Here's a detailed breakdown of its key attributes and applications:
Composition
304L is defined by its low carbon content (≤0.03%) , which minimizes carbide precipitation during welding, a critical advantage over standard 304 stainless steel. Its chemical makeup includes 18-20% chromium (Cr), 8-12% nickel (Ni), and trace elements like manganese (≤2%) and silicon (≤0.75%) . This alloy ensures a stable austenitic structure, providing excellent corrosion resistance and formability.
Mechanical Properties
Tensile Strength: 515-564 MPa (75,000-81,800 psi)
Yield Strength (0.2% offset): ≥170 MPa (24,660 psi)
Elongation: ≥40% , enabling deep drawing and complex forming without cracking.
Hardness: HB ≤ 187, HRB ≤ 90 .
Density: 8.03 g/cm³ (0.289 lbs/in³) .
Thermal Conductivity: 16.2-16.3 W/m·K at 100°C .
Magnetic Permeability: Nearly non-magnetic in the annealed state .
Applications
304L's combination of corrosion resistance, weldability, and cost-effectiveness makes it suitable for diverse industries:
Food & Beverage: Milk tanks, brewery equipment, and kitchen utensils, meeting FDA and LFGB standards .
Medical Devices: Surgical instruments and implants due to biocompatibility .
Construction: Architectural trim, roofing, and coastal structures (resistant to salt-laden air) .
Chemical Processing: Storage tanks and pipelines for non-aggressive acids (e.g., ≤10% sulfuric acid) .
Automotive: Exhaust systems and decorative trim .
Marine (Non-Direct Seawater): Coastal infrastructure and boat fittings where chloride exposure is moderate .
Welding & Fabrication
Welding Techniques: TIG (Tungsten Inert Gas) welding is preferred due to precise heat control, minimizing distortion and carbide precipitation. Pulsed current TIG further reduces residual stress and improves bead quality .
Filler Materials: Use 308L or 309L electrodes to match the low-carbon content and prevent corrosion at weld joints .
Post-Weld Treatment: Generally unnecessary, but annealing (1050-1100°C followed by rapid cooling) can restore ductility after heavy cold working .
Surface Finishes
Common finishes for 304L sheets include:
2B: Smooth, reflective finish for general purposes (e.g., kitchen appliances) .
BA (Bright Annealed): Mirror-like surface for decorative applications .
No. 4: Matte finish with light polishing, ideal for architectural trim .
HL (Hairline): Brushed finish for scratch resistance and easy cleaning (e.g., countertops) .
Embossed: Textured surfaces for grip or aesthetics .
Price & Availability
Cost: In 2025, prices range from $15,300 to $24,000 per metric ton , depending on thickness, finish, and regional demand. For example, a 5.0mm-thick sheet may cost ~$15,300/ton, while thinner gauges (e.g., 0.3mm) can exceed $20,000/ton .
Availability: Widely stocked by global suppliers like Bao Pu Steel (China), with standard sizes (e.g., 1000-2000mm width, 2000-6000mm length) and custom cuts available .
Comparison with 316L
While 304L offers excellent general corrosion resistance, 316L (with 2-3% molybdenum) is superior in chloride-rich environments (e.g., seawater, harsh chemicals). However, 304L is 15-30% cheaper and better suited for cost-sensitive applications where extreme durability isn't required.
Key Considerations
Limitations: Avoid direct contact with high-concentration chlorides (e.g., saltwater) or strong acids (e.g., concentrated sulfuric acid) .
Certifications: Look for ISO 9001, SGS, and RoHS compliance for quality assurance .
Storage: Store in dry, ventilated areas to prevent surface contamination and rust .
In summary, 304L stainless steel sheets balance performance, affordability, and versatility, making them a top choice for industries where corrosion resistance and weldability are critical. Always consult material specifications (e.g., ASTM A240, EN 10088) for project-specific requirements.
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Grade
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201/202/301/303/304/304L/316/316L/321/310S/401/409/410/420J1/420J2/430/439/443/444
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Surface Finish
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2B, BA, NO.1, NO.4, 8K, HL, Embossing, Satin, Mirror, ect
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Standard
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JIS/SUS/GB/DIN/ASTM/AISI/EN
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Technique
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Cold Rolled; Hot Rolled
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Thickness
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0.3-4mm cold rolled; 3-16mm hot rolled; 16-100mm hot rolled; Customized according to customer requirements
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Width
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1000mm, 1219mm, 1240mm, 1500mm, 1800mm, 2000mm
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Length
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2000mm, 2438mm, 2500mm, 3000mm, 6000mm or as required
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Color
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Golden, Black, Sapphire Blue, Brown, Rose Gold, Bronze, Silver, ect
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Application
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Interior/Exterior decoration;Architectur; Evevator; Kitchen; Ceiling; Cabinet; Advertising nameplate; Roof structure;
Shipbuilding |
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Lead Time
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7-15 working days after the receipt of 30% deposit
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Payment Terms
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30% TT for deposit,70% TT /70% LC at sight balance before shipment
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Price Terms
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FOB, EXW, CIF, CFR
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Packing
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Wooden Pallet or according to customer's requirements
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Surface Finish
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Definition
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Application
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2B
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Finished by heat treatment , picking or equipvalent cold rolling , followed by skin pass to obtain adequate luster surface.
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With bright and smooth surface ,easy for further grinding to obtain brighter surface ,suitable for medical instruments ,milk
containers ,tableware and so on. |
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BA
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Bright heat treatment after cold rolling.
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Structual members .etc.kitchen utensil ,cutlery ,eleltric applicances ,medical instruments ,building decorations ,etc.
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NO.3/NO.4
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Polished with No.150-240 abrasives.
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Milky food processing equipment , medicalinstruments ,building decorations.
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HL
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Finshed by polishing with abrasives of suitable grain size to obtain continuous streaks.
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Building decorations ,such as elevators ,escalators ,door etc.
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6K/8K
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A mirror-like reflective surface ,which is obtained by polishing with successively finer abrasives and buffing extensively with all gritlines are removed.
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Buliding entrances,bulkding column casting ,elevator's wall doors ,counters,sculptures etc.
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| Grade | C | Si | Mn | P | S | Ni | Cr | Mo |
| 201 | ≤0.15 | ≤0.75 | 5.5-7.5 | ≤0.06 | ≤ 0.03 | 3.5-5.5 | 16.0-18.0 | - |
| 301 | ≤0.15 | ≤1.0 | ≤2.0 | ≤0.045 | ≤ 0.03 | 6.0-8.0 | 16.0-18.0 | - |
| 304 | ≤0.08 | ≤1.0 | ≤2.0 | ≤0.045 | ≤ 0.03 | 8.0-13.0 | 18.0-20.0 | - |
| 304L | ≤0.03 | ≤1.0 | ≤2.0 | ≤0.035 | ≤ 0.03 | 9.0-13.0 | 18.0-20.0 | - |
| 309S | ≤0.08 | ≤0.75 | ≤2.0 | ≤0.045 | ≤ 0.03 | 12.0-15.0 | 22.0-24.0 | - |
| 310S | ≤0.08 | ≤1.0 | ≤2.0 | ≤0.045 | ≤ 0.03 | 19.0-22.0 | 24.0-26.0 | - |
| 314 | ≤0.25 | ≤1.5-3.0 | ≤2.0 | ≤0.045 | ≤ 0.03 | 19.0-22.0 | 23.0-26.0 | |
| 316 | ≤0.08 | ≤1.0 | ≤2.0 | ≤0.045 | ≤ 0.03 | 10.0-14.0 | 16.0-18.0 | 2.0-3.0 |
| 316L | ≤0.03 | ≤1.0 | ≤2.0 | ≤0.045 | ≤ 0.03 | 10.0-15.0 | 16.0-18.0 | 2.0-3.0 |
| 321 | ≤0.08 | ≤1.0 | ≤2.0 | ≤0.035 | ≤ 0.03 | 9.0-13.0 | 17.0-19.0 | - |
| 347 | ≤0.08 | ≤0.75 | ≤2.0 | ≤0.045 | ≤ 0.03 | 9.0-13.0 | 17.0-19.0 | |
| 410 | ≤0.15 | ≤1.0 | ≤1.0 | ≤0.035 | ≤ 0.03 | - | 11.5-13.5 | - |
| 420 | ≤0.16-0.25 | ≤1.0 | ≤1.0 | ≤0.040 | ≤ 0.03 | - | 12.0-14.0 | - |
| 430 | ≤0.12 | ≤0.75 | ≤1.0 | ≤0.040 | ≤ 0.03 | ≤0.60 | 16.0-18.0 | - |
| 904L | ≤0.02 | ≤1.0 | ≤2.0 | ≤0.045 | ≤ 0.03 | 23.0-28.0 | 19.0-23.0 | - |
20ft GP: 5.8m(length) x 2.13m(width) x 2.18m(high) about 24-26CBM,27MTS
40ft GP: 11.8m(length) x 2.13m(width) x 2.18m(high) about 54CBM,27MTS
40ft HG: 11.8m(length) x 2.13m(width) x 2.72m(high) about 68CBM,27MTS
Q: What are the details of your after sales service?
A:1) We provide the necessary technical support to all of our customers, such as material performance and heat treatment data advice.
2) We provide the appropriate steel material technical parameters for customers in Germany, The USA, Japan, Britain, and other countries.
Q: How could I get a sample?
A: Before we received the first order, please afford the sample cost and express fee. We will return the sample cost back to you within your first order.
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