- sales@hindustansteel.com
- 390/392, Ground Floor, Shankar Mansion, Vanita Vishram Chowk, S.V.P. Road, Mumbai - 400004
Phone
+91-9820944724
+91-9820944724
Home > Our Products > Stainless Steel Plates > Grade / Standard > ASTM A240 / SS 304 Stainless Steel Plates
Hindustan Steel Corporation is a trusted supplier, stockist, and exporter of ASTM A240 / SS 304 stainless steel plates, offering ready-to-dispatch inventory in both standard and custom-cut dimensions. We supply 304, 304L, 304H, and dual-certified SS 304 plates in mill finish, 2B, No.4, and mirror-polished options. All plates are backed by MTCs, third-party inspection reports, and full traceability.
Whether you need corrosion-resistant stainless steel for chemical processing, kitchen equipment, marine fittings, or pressure vessels, Grade 304 stainless plates under ASTM A240 and ASME SA240 deliver long-lasting performance, excellent weldability, and universal fabrication compatibility.
ASTM A240 Type 304 plate refers to austenitic stainless steel that meets the specifications of the ASTM A240 standard for chromium-nickel alloys. This grade is known for its excellent corrosion resistance, durability, and hygienic finish, making it one of the most widely used stainless steels across industries.
Also referred to as SA240 Gr 304 (under ASME), this material is the go-to choice for applications that demand:
Common alternate designations include:
In simple terms:
SS 304 = Corrosion-resistant, weldable, food-safe, cost-effective stainless plate for everyday industrial and structural use.
Where are SS 304 stainless steel plates used?
This grade is a universal material across sectors due to its formability, aesthetics, and corrosion resistance. Some popular applications include:
Industrial Use:
Food & Pharma:
Structural & Utility:
If your requirement demands both function and finish, SA240 304 plates are a reliable, globally accepted choice.
ASTM A240 Grade 304 plates are known for their moderate tensile strength, excellent elongation, and high toughness even at low temperatures. Here’s a quick performance overview:
| Property | Value (Typical) |
|---|---|
| Tensile Strength | 515 – 750 MPa |
| Yield Strength (0.2% Offset) | Min. 205 MPa |
| Elongation (in 50mm) | ≥ 40% |
| Hardness (Brinell) | ≤ 201 HBW |
| Modulus of Elasticity | ~193 GPa |
This grade offers good impact resistance, low carbon content in 304L for welds, and is non-magnetic in the annealed condition.
The corrosion resistance and structural performance of SS 304 plates is largely attributed to its balanced chromium-nickel content. Here’s the standard composition:
| Element | % Composition |
|---|---|
| Chromium (Cr) | 18.0 – 20.0% |
| Nickel (Ni) | 8.0 – 10.5% |
| Carbon (C) | ≤ 0.08% (0.03% in 304L) |
| Manganese (Mn) | ≤ 2.00% |
| Silicon (Si) | ≤ 1.00% |
| Phosphorus (P) | ≤ 0.045% |
| Sulfur (S) | ≤ 0.030% |
| Iron (Fe) | Balance |
Note: 304L has lower carbon for improved weldability. 304H has higher carbon for elevated temperature strength.
ASTM A240 is the global material standard for chromium and chromium-nickel stainless steel plate, sheet, and strip used in pressure vessels and general applications. Grade 304 falls under this standard and also complies with the ASME SA240 specification for pressure vessel use.
Common Designations
304 Stainless Steel is also dual-certified under ASTM A240 and EN 1.4301 for general engineering and industrial usage, ensuring full global compatibility.
At Hindustan Steel Corporation, we supply SS 304 plates in both standard and custom dimensions, ideal for cutting, polishing, and CNC profiling as per end-use.
Size Range:
Surface Finishes Available:
Need custom circles, rings, flanges, or CNC-cut profiles? We offer laser, waterjet, and plasma cutting services with ±1 mm tolerance.
Grade 304 exhibits excellent oxidation resistance in intermittent service up to 870°C and in continuous service up to 925°C. However, for continuous high-temperature applications above 425°C, Grade 304H is preferred.
Key Thermal Properties:
It maintains high toughness even at cryogenic temperatures, making it suitable for both hot and cold environments.
304 stainless steel is easily weldable and fabricable using all standard methods.
Welding:
Machining:
Fabrication:
Important: Use clean, stainless-only tools to avoid contamination and pitting
Hindustan Steel Corporation offers competitive pricing, ready stock, and full quality traceability for SS 304 and its variants. Here’s what sets us apart:
When it comes to ASTM A240 stainless plates, buyers across construction, pharma, chemical, and oil & gas trust us for consistent quality and fast dispatch
We supply all major variants of Grade 304 under ASTM A240 and ASME SA240:
🔹 SS 304L – Low Carbon (≤0.03%)
🔹 SS 304H – High Carbon (0.04–0.10%)
🔹 Dual Certified 304/304L
Each plate is clearly marked with grade, heat number, and batch info for complete traceability.
As a leading SS 304 plate exporter, Hindustan Steel Corporation caters to industrial buyers across UAE, Saudi Arabia, South Africa, Vietnam, Bangladesh, Oman, and Europe.
We ensure every export shipment meets international documentation and compliance requirements, including:
Export Packaging Options:
We offer custom marking, third-party inspection (TUV, SGS, Lloyd’s), and zero-defect delivery to your port or project site.
If you’re confused between 304, 304L, and 304H stainless steel, consider the following tips:
Choose 304L if:
Choose 304H if:
Choose Dual Certified 304/304L if:
Need help? Just request a consultation or sample MTC before bulk order.
Every SS 304 stainless steel plate from Hindustan Steel Corporation is shipped with:
Mill Test Certificate (EN 10204 3.1 or 3.2)
Chemical + Mechanical Property Report
Ultrasonic Testing (UT) if required
IBR / NACE / PED certifications (on request)
Stamping: Grade, Heat No., Batch No., Size, Origin
We follow strict quality management systems backed by ISO 9001:2015, ensuring full traceability from mill to your application.
No. SS 304 is the grade, while ASTM A240 is the specification it conforms to. ASTM A240 Grade 304 is the full designation.
304L has lower carbon, making it better for welding and preventing intergranular corrosion. It’s preferred for chemical tanks and pharma equipment.
Yes. When combined with ASME SA240 designation, it is used for moderate-pressure vessels in food, pharma, and chemical industries.
Yes. Available in No.4 brushed, No.8 mirror, and BA (bright annealed) finishes for architectural and hygienic use.
It is corrosion-resistant, but not completely rust-proof in saline or acidic conditions. For extreme environments, use 316 or 904L.
Up to 870°C intermittently, and 925°C continuously, but use 304H for long-term high-temperature strength
Thickness from 3 mm to 100 mm, widths up to 2000 mm, and custom cut lengths up to 6000 mm.
It is suitable for mild marine exposure but not recommended for prolonged saltwater immersion. Use 316 or duplex grades instead.
We provide MTCs, third-party inspections (TPI), IBR, NACE, and PED certifications as per buyer requirements.
HSN Code: 7219 – used for flat-rolled stainless steel products
Yes. We provide laser, plasma, and waterjet cutting services as per drawing.
Yes. We stock dual-grade certified material for flexible compliance.
Usually 5–10 working days, depending on stock and finish requirement.
Simply request a technical datasheet or spec PDF via email or WhatsApp.
Request Price, PDF Datasheet or MOQ for ASTM A240 304 Plates
Looking to order SS 304 plates in standard or custom sizes?
Submit your inquiry to get:
+91-22-66159018
+91-9820944724
sales@hindustansteel.com hindustansteel1@gmail.com
390/392, Ground Floor, Shankar Mansion, S.V.P. Road, Mumbai – 400004, India
Explore how stainless steel plates are used across industries—from food-grade equipment and heat exchangers to marine-grade and decorative installations. Select the right plate based on industry need and environment.
Find detailed insights into SS 304, SS 316, Duplex, 904L, and other grades. We break down corrosion resistance, mechanical properties, and usage suitability to help you choose smartly.
We supply HIND-branded SS plates along with leading mill-certified brands like Jindal, Outokumpu, and POSCO — offering the best of pricing, availability, and traceability.
Hindustan Steel Corporation is a trusted exporter of stainless steel plates to more than 40 countries, serving critical sectors where corrosion resistance, hygiene, and precision are non-negotiable.
Even experienced buyers can fall into common traps when sourcing stainless steel plates.
Read FAQ →
Got questions? We’ve answered the most searched buyer queries on SS 304 vs 316, finish options, welding behavior, marine suitability, and more — in voice-search-friendly formats.
Get expert tips, grade comparisons, surface finish guides, and stainless selection checklists tailored for engineers, fabricators, and procurement teams.
This section provides ready-to-download documents and technical tools to help buyers finalize their decisions faster, align with project specs, and ensure compliance.
+91-22-66159018
+91-9820944724
sales@hindustansteel.com hindustansteel1@gmail.com