AISI 304l Stainless Steel Plate
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If you are searching for AISI 304L stainless steel plates in stock, Gnee is your trusted global supplier. We offer ready-to-ship 304L plates in various thicknesses, widths, and surface finishes - all compliant with ASTM A240 / ASME SA240 standards. Whether you require plates for chemical processing, food equipment, marine structures, or heat exchangers, our 304L stainless steel ensures superior corrosion resistance, excellent weldability, and long service life.
With more than 18 years of export experience, Gnee supplies ISO, SGS, and BV-certified stainless steel products to over 60 countries worldwide, ensuring consistent quality and competitive prices for every order.
What Is AISI 304L Stainless Steel Plate?
AISI 304L is the low-carbon version of 304 stainless steel (EN 1.4307, UNS S30403). The "L" indicates lower carbon content (≤0.03%), which enhances resistance to intergranular corrosion after welding. It retains all the strength and formability of 304, making it the preferred choice for welded assemblies, tanks, pipelines, and pressure vessels.
AISI 304L Stainless Steel Plate Specification (ASTM A240)
| Property | Specification |
|---|---|
| Standard | ASTM A240 / ASME SA240 |
| Grade | AISI 304L (EN 1.4307, UNS S30403) |
| Finish Options | No.1 (Hot Rolled), 2B (Cold Rolled), No.4, BA, Mirror |
| Thickness Range | 0.3 mm – 100 mm |
| Width Range | 1000 mm – 2000 mm (custom widths available) |
| Length | 2000 mm – 6000 mm or per requirement |
| Heat Treatment | Solution Annealed |
| Certificate | EN 10204 3.1 / 3.2, ISO 9001, SGS, BV |
| Delivery Time | 7–15 working days |
Chemical Composition (Typical %)
| Element | C | Mn | Si | P | S | Cr | Ni | N |
|---|---|---|---|---|---|---|---|---|
| 304L | ≤0.03 | ≤2.0 | ≤1.0 | ≤0.045 | ≤0.03 | 18.0–20.0 | 8.0–12.0 | ≤0.1 |
Mechanical Properties
| Property | Metric | Imperial |
|---|---|---|
| Tensile Strength | ≥485 MPa | ≥70 ksi |
| Yield Strength (0.2% Offset) | ≥170 MPa | ≥25 ksi |
| Elongation | ≥40% | ≥40% |
| Hardness (Brinell) | ≤201 HB | ≤201 HB |
| Density | 8.0 g/cm³ | 0.289 lb/in³ |
Is 304L stainless steel magnetic?
It is generally non-magnetic in the annealed condition but may become slightly magnetic after cold working.
What is the difference between 304 and 304L stainless steel plates?
The main difference is carbon content. 304L (≤0.03% C) offers better corrosion resistance after welding, while 304 (≤0.08% C) has slightly higher strength.
AISI 304L Stainless Steel Plate price per kg
As of 2025, the AISI 304L stainless steel plate price per kg typically ranges from USD 2.5 to 4.2 per kilogram, depending on the thickness (1 mm to 50 mm), surface finish (2B, BA, No.4, or No.1), and order quantity. For bulk orders or customized cut-to-size plates, Gnee offers competitive factory-direct pricing with ISO and SGS certifications, ensuring consistent quality and timely delivery worldwide.Email: info@gneestainless.com
Why Choose Gnee as Your 304L Stainless Steel Plate Supplier
✅ Large Inventory: Over 1,000 tons of AISI 304L stainless steel plates in stock, ready for immediate dispatch.
✅ Flexible Customization: Cutting, bending, polishing, surface treatment, and CNC processing available.
✅ Certified Quality: All products comply with ASTM, AISI, DIN, EN, JIS, GB, and come with MTC 3.1 certificates.
✅ Competitive Pricing: Direct mill prices with transparent quotations and bulk discounts.
✅ Global Delivery: Fast shipping to Asia, Europe, North America, and the Middle East within 7–15 days.
