Stainless Steel 304L Plate Supplier in USA | ASTM A240 UNS S30403 Plates
Stainless Steel 304L Plate is a low-carbon austenitic stainless steel plate produced in accordance with the ASTM A240 specifications. Recognized for its outstanding corrosion resistance, ease of welding, and remarkable durability, ASTM A240 304L Stainless Steel Plate is extensively utilized in chemical processing, food manufacturing, pharmaceuticals, marine industries, pressure vessels, and structural fabrication. The presence of lower carbon percentage limits carbide precipitation during welding and therefore the UNS S30403 Stainless Steel Plate is ideal for welding applications where long term corrosion resistance is essential.
Premium Quality Stainless Steel 304L Plates for Industrial Applications
Stainless Steel 304L Plate is still the best choice stainless steel grade to fabricating jobs requiring excellent corrosion resistance and service life. By having less carbon content than that of regular 304 stainless steel grade, 304L stainless steel plate provides superior weldability and also good mechanical strength and corrosion resistance properties.
We stock premium ASTM A240 304L Stainless Steel Plate in standard thickness, width and length to suit the application needs for fabrication shops, EPC contractors, pressure vessel fabricators, food processing plants, pharmaceutical companies and marine engineering industries.
You may want a standard size or cut to dimension 304L stainless steel plate, our stock level and cutting equipment fulfill this demand for the precise dimension of your need.
What is Stainless Steel 304L Plate?
Stainless Steel 304L Plate is an austenitic chromium-nickel stainless steel that consists about 18% chromium and 8% nickel with carbon content below 0.03%. The presence of low carbon content substantially decreases the chance of intergranular corrosion subsequent to welding thereby qualifying it for heavily welded structures even without post weld heat treatment for many applications.
Equivalent Specifications
| Standard | Grade |
| ASTM | ASTM A240 304L Stainless Steel Plate |
| UNS | UNS S30403 Stainless Steel Plate |
| EN | 1.4307 |
| ISO | X2CrNi18-9 |

Key Features of Stainless Steel 304L Plate
- Excellent Corrosion Resistance: 304L stainless steel performs exceptionally well in atmospheric, chemical, and mildly corrosive environments.
- Superior Weldability: The low-carbon composition minimizes carbide precipitation during welding, improving corrosion resistance in welded areas.
- Outstanding Fabrication Properties: The material can be cut, bent, rolled, formed, and machined efficiently for complex fabrication projects.
- Hygienic Surface: Its smooth, easy-to-clean surface makes it ideal for food processing and pharmaceutical applications.
- Long Service Life: Excellent durability and low maintenance requirements help reduce lifecycle costs.
Custom Cut 304L Stainless Steel Plate Services
Many projects require dimensions that differ from standard mill sizes. To reduce fabrication time and material waste, we offer custom cut 304L stainless steel plate services. Available processing options include:
- Plasma Cutting
- Laser Cutting
- Water Jet Cutting
- CNC Profile Cutting
- Edge Preparation
- Surface Finishing
- Plate Beveling
Custom processing helps customers receive ready-to-fabricate materials that improve efficiency on-site.
Stainless Steel 304L Plate Price Factors
Customers frequently search for the stainless steel 304L plate price before making purchasing decisions.
Several factors influence pricing:
- Plate thickness
- Width and length
- Quantity ordered
- Surface finish requirements
- Raw material market conditions
- Processing requirements
- Testing and certification requirements
For the most accurate stainless steel 304L plate price, request a quotation with your required dimensions, specifications, and quantity.


Mechanical Properties of Stainless Steel 304L Plate
| Property | Value |
| Tensile Strength | 485 MPa Minimum |
| Yield Strength | 170 MPa Minimum |
| Elongation | 40% Minimum |
| Hardness | 92 HRB Maximum |
ASTM A240 304L Stainless Steel Plate Specifications
| Specification | Details |
| Material Grade | 304L Stainless Steel |
| Standard | ASTM A240 |
| UNS Number | UNS S30403 |
| Form | Plate, Sheet, Coil Plate |
| Thickness Range | 3 mm to 100 mm |
| Width Range | Up to 2500 mm |
| Length Range | Up to 12000 mm |
| Surface Finish | No.1, 2B, BA, Mirror, Hairline |
| Cutting Services | Plasma, Laser, Water Jet, Saw Cutting |
Our ASTM A240 304L Stainless Steel Plate inventory is sourced from approved mills and supplied with complete material traceability and test certification.
Chemical Composition of UNS S30403 Stainless Steel Plate
| Element | Composition (%) |
| Chromium (Cr) | 18.0 – 20.0 |
| Nickel (Ni) | 8.0 – 12.0 |
| Carbon (C) | Max 0.03 |
| Manganese (Mn) | Max 2.0 |
| Silicon (Si) | Max 1.0 |
| Phosphorus (P) | Max 0.045 |
| Sulfur (S) | Max 0.03 |
| Nitrogen (N) | Max 0.10 |
Applications of ASTM A240 304L Stainless Steel Plate
ASTM A240 304L Stainless Steel Plate is used extensively across various industries:
Chemical Processing Equipment
- Storage tanks
- Process vessels
- Heat exchangers
- Chemical handling systems
Food & Beverage Industry
- Mixing equipment
- Food-grade storage tanks
- Dairy processing units
- Brewing systems
Pharmaceutical Industry
- Sterile process equipment
- Manufacturing vessels
- Clean room applications
Water Treatment Plants
- Filtration systems
- Water storage tanks
- Desalination equipment
Marine Applications
- Structural components
- Marine hardware
- Offshore support systems
Architectural Projects
- Decorative panels
- Structural fabrication
- Cladding systems
SS 304L Plate Supplier in USA
As a trusted SS 304L plate supplier in USA, we support contractors, OEMs, fabricators, EPC companies, distributors, and industrial end-users with reliable material availability and timely deliveries.
Our supply capabilities include:
- Standard ASTM A240 plates
- Custom cut plates
- Industrial project quantities
- Export packaging
- Third-party inspection support
- Complete documentation and certifications
Whether your requirement is a single plate or a bulk industrial order, we strive to provide quality products and dependable service.
Manufacturing Process of SS 304L Plates
A lot of the buyers when looking for the material search for stainless steel 304L plate manufacturer. A manufacturer produces the stainless steel plate but a supplier stores, services, processes and then supplies at an increased pace. Working with good suppliers of 304L stainless steel plate allows to skip over some of the delays to your project as the materials are ready to use.

Related SS Plates/Sheets/Coils Grades
- Stainless Steel 304 Plate
- Stainless Steel 304l Plate
- Stainless Steel 304h Plate
- Stainless Steel 309H Plate
- Stainless Steel 310 Plate
- Stainless Steel 310S Plate
- Stainless Steel 310H Plate
- Stainless Steel 316 Plate
- Stainless Steel 316L Plate
- Stainless Steel 316H Plate
- Stainless Steel 316TI Plate
- Stainless Steel 317 Plate
- Stainless Steel 317L Plate
- Stainless Steel 321 Plate
- Stainless Steel 321H Plate
- Stainless Steel 347 Plate
- Stainless Steel 410 Plate
- Stainless Steel 446 Plate
- Stainless Steel 904L Plate
Why Buy 304L Stainless Steel Plate From Us?
Organizations looking to buy 304L stainless steel plate require dependable quality, fast delivery, and technical support. We provide:
- Verified Material Quality: All products are supplied with mill test certificates and inspection documentation.
- Extensive Inventory: Ready stock of common sizes helps reduce procurement lead times.
- Precision Processing: Custom cutting and value-added services help simplify fabrication workflows.
- Competitive Pricing: Strong sourcing relationships enable cost-effective supply solutions.
- Global Supply Network: Efficient logistics support domestic and international project requirements.
- Technical Assistance: Our experienced team helps customers select suitable plate specifications based on application requirements.
Global Reach
Amardeep Steel Centre boasts a robust global presence, committed to delivering unparalleled service and quality to clients around the world. Our dedication to prompt delivery and exceptional customer care sets us apart in the industry. Major corporations across the USA, Europe, Asia, and other regions place their trust in our high-quality stainless steel 304l plates. This widespread trust underscores our reputation for reliability and excellence. By consistently meeting and exceeding the expectations of our international clientele, we continue to solidify our position as a leader in the global steel market.

Countries We Export To
UNITED STATES, EUROPE, UK, UAE, SAUDI ARABIA, OMAN, KUWAIT, JORDAN, QATAR, INDONESIA, MALAYSIA, BRAZIL, SPAIN, ITALY, FRANCE, GERMANY, BAHRAIN, SRI LANKA, AZERBAIJAN, AUSTRALIA, AUSTRIA, PHILIPPINES, TURKEY, RUSSIA, IRAN, IRAQ, CANADA, KOREA, JAPAN, YEMEN, FINLAND, ZIMBABWE, HUNGARY, PORTUGAL, VIETNAM, MOROCCO, THAILAND, SOUTH AFRICA, MEXICO, SINGAPORE, GREECE, KUWAIT, POLAND, NEW ZEALAND, SWEDEN, SWITZERLAND, BELGIUM, BHUTAN, BANGLADESH, TAIWAN, ROMANIA, CAMBODIA, KAZAKHSTAN, AFGHANISTAN.

