Stainless Steel 304 Plates Manufacturer and Supplier

Stainless Steel 304 plates are flat, austenitic chromium–nickel products produced in accordance with ASTM A240 and ASME SA-240 standards. Identified as UNS S30400 (Werkstoff 1.4301), this grade typically contains 18.0–20.0% chromium and 8.0–11.0% nickel, with a maximum carbon content of 0.08%. The 18/8 composition provides strong resistance to atmospheric corrosion, mildly acidic media, and organic acids.

304 plates deliver a minimum tensile strength of 515 MPa (75 ksi), minimum yield strength of 205 MPa (30 ksi), and 35% elongation. The alloy is formable, weldable, and suitable for cold working.

Sachiya Steel International is a manufacturer, supplier, stockist, and exporter of Stainless Steel 304 plates based in Mumbai, India. With over 20 years of experience, we maintain a ready-to-ship inventory of 1,500 to 2,000 metric tons across grades and sizes. We specialise in extra-wide plates ranging from 1500 mm to 3000 mm, with standard lengths up to 12 meters. Dual certification to 304/304L is available on request. Thicknesses range from 4.76 mm (3/16″) to 152 mm (6″). Standard widths include 48″, 60″, 72″, and 96″, with plate mill widths reaching 120″. Surface finishes cover 2B mill, #4 brushed satin, #8 mirror polish, and HRAP.

Every shipment includes mill test certificates (MTC 3.1). We supply food processing, chemical, architectural, and pharmaceutical sectors globally. Sachiya Steel is certified to ISO 9001, ISO 14001, and ISO 45001. Our wide-width plate capability covers widths up to 120″ (3,048 mm) for large-format industrial requirements.

This page covers the following sections:

Specification
Pricing
Chemical Composition
Mechanical Properties
Equivalent Designation
Industrial Applications
Grade Comparison
Shipping & Packaging
Frequently Asked Questions

Specifications of Stainless Steel 304 Plates

The specifications of Stainless Steel 304 Plates, including standard, range and surface finish, are listed in the table below:

Property	Details
Standards	ASTM A240 / ASME SA240
Size Range	Width: 1000 mm to 3000 mm, Thickness: 3 mm to 100 mm
Length	2000 mm, 2440 mm, 3000 mm, 6000 mm, or custom cut lengths
End Type	Mill Edge (ME), Slit Edge (SE)
Surface Finish	2B, No.1 (Hot Rolled), No.4 (Matte), BA (Bright Annealed), HL (Hairline)
Form	Hot Rolled Plates

Stainless Steel 304 Plate Sizes

SS 304 plates are stocked in 3 main dimensional categories: thickness, width-by-length, and weight per plate. We offer both standard and custom sizes tailored to each client’s requirements.

Thickness and Gauge Chart

Stainless Steel 304 plates are available in different thicknesses; the gauge chart is listed below.

Property	Details
Thickness Range	3/16″ (4.76 mm) to 6″ (152 mm)
Common Thicknesses	3/16″, 1/4″, 5/16″, 3/8″, 1/2″, 5/8″, 3/4″, 1″, 1-1/4″, 1-1/2″, 2″, 3″, 4″
Classification Limit	Below 3/16″ classified as sheets

Standard Plate Dimensions (Width × Length)

Stainless Steel 304 plates are available in standard widths and lengths, with multiple stock sizes and custom cutting options for varied applications.

Category	Sizes / Range
Standard Widths	48″, 60″, 72″, 96″
Max Plate Width	Up to 120″ (plate mill products)
Standard Lengths	96″, 120″, 144″, 240″
Stock Sizes	4×4 ft, 4×8 ft, 4×10 ft
Custom Options	Custom-cut dimensions available as per requirement

Weight per Plate Size

Stainless Steel 304 plate weight depends on size and density. The standard formulas estimate the weight for each plate size.

Property	Details
Material	Stainless Steel 304
Density	7.93 g/cm³ (0.285 lb/in³)
Weight Formula	Weight = Thickness × Width × Length × Density
Example Plate Size	6 mm × 1,250 mm × 2,500 mm
Approx. Weight	148 kg

Stainless Steel 304 Plate Finishes

304 SS plates are available in 4 standard surface finishes:

2B mill finish (default for fabrication)
#4 brushed satin (architectural and food-contact use)
#8 mirror polish (decorative applications)
HRAP finish

Stainless Steel 304 Plate Price

SS 304 plate prices change based on thickness, size, finish, order quantity, and nickel/chromium prices. In India, they usually cost ₹200–350 per kg, and approximately $5.00 per kg. Contact Sachiya Steel for a bulk order quote.

Chemical Composition of Stainless Steel 304 Plates

The table below lists the chemical composition of SS 304 plates along with their proportion in percentage.

Carbon C

Max 0.08%

Manganese Mn

Max 2.00%

Phosphorus P

Max 0.045%

Sulfur S

Max 0.030%

Silicon Si

Max 1.00%

Chromium Cr

18.0 – 20.0%

Nickel Ni

8.0 – 11.0%

Mechanical Properties of 304 Stainless Steel Plates

The mechanical properties of 304 stainless steel plates, including tensile strength, elongation and yield strength, are listed below:

75 / 515

MPa (ksi)

Tensile Strength

30 / 205

MPa (ksi)

Yield Strength

35%

(min)

Elongation

Property	Value	Unit
Tensile Strength (min)	75 / 515	ksi / MPa
Yield Strength, 0.2% Offset (min)	30 / 205	ksi / MPa
Elongation (min)	35	%

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Equivalent Grades of Stainless Steel 304 Plates

International designation equivalent to Stainless Steel 304 Plate with its UNS and EN is listed in the table below.

Standard	Designation
UNS	UNS S30400
EN 10088	1.4301 / X5CrNi18-10
JIS G 4305	SUS 304
GB/T 20878	06Cr19Ni10 / S30408
IS 6911	04Cr19Ni9
BS (former)	304S31
AFNOR	Z7CN18-09
SS	SS 2332

Stainless Steel 304 Plates Industrial Applications

304 stainless steel plates serve 4 primary industrial sectors.

Food Processing and Beverage Equipment

SS 304 plates are the standard material for food-contact surfaces, brewing vessels, dairy tanks, and kitchen panels.

Architectural and Construction

Architects use Alloy 304 plates for facade cladding, elevator interiors, column covers, and wall panels.

Chemical and Petrochemical Processing

Chemical plants use 304 stainless steel plates for storage tanks, heat exchangers, and reaction vessel linings.

Industrial Fabrication and Equipment

General fabricators use 304 SS plates for structural frames, base plates, flanges, and machine guards.

304 vs 304L Stainless Steel Plates

This table compares SS 304 and 304L plates. It shows carbon content, weldability, corrosion resistance, and certification differences for industrial applications.

Property / Feature	SS 304 Plates	SS 304L Plates
Carbon Content	Up to 0.08%	Up to 0.03%
Corrosion Resistance (Welded)	Lower after welding	Higher after welding
Intergranular Corrosion Resistance	Moderate	Excellent
Weldability	Good	Superior
Typical Application	General structural use	Welded fabrications, critical applications
Certification Availability	Standard grade	Often dual-certified (304/304L)
Mill Test Certificate	Separate certification	Single certificate covering both

304 vs 316 Stainless Steel Plates

This table compares stainless steel 316 and 304 plates. It highlights differences in corrosion resistance, composition, cost, and typical application environments.

Property / Feature	Stainless Steel 316 Plates	Stainless Steel 304 Plates
Molybdenum Content	2–3% (present)	Not present
Corrosion Resistance	Superior in chloride-rich environments	Good in general environments
Pitting Resistance	High	Moderate
Crevice Corrosion Resistance	High	Moderate
Suitable Environments	Marine, coastal, seawater exposure	Atmospheric, freshwater, mild acids
Performance in Chlorides	Excellent	Limited
Cost	Higher	More cost-effective
Typical Applications	Marine equipment, chemical processing	General fabrication, kitchen equipment

Shipping & Packaging

Heavy-duty wooden boxes Packing

Export Packaging Standard

We strictly follow seaworthy export handling standards to protect SS 304 plate from transit damage, moisture ingress, and surface contamination during long-distance dispatch.

Heavy-duty wooden boxes with moisture barrier lining
HDPE stretch film wrapping on all bundles
Edge and corner protection with plastic padding
Silica gel desiccants to minimize moisture exposure
ISPM-15 fumigated wooden packaging for export

Plate Bundle Yard Staging

Plate Bundle Edge Protection

Wrapped Export-Ready Bundles

We Export Worldwide

Sachiya Steel International supplies stainless steel products to major industrial markets across North America, Europe, the Middle East, Asia and Africa with export-ready documentation and logistics support.

USA
Canada

Frequently Asked Questions:

What is a 304 Stainless Steel Plate? +

A 304 stainless steel plate is a flat-rolled austenitic product with 18% chromium and 8% nickel. It is manufactured to ASTM A240 / ASME SA-240. This plate is often used in food processing, chemical, and architectural applications.

What is the standard size of SS 304 Plates? +

Standard SS 304 plate sizes are available in widths of 48″, 60″, 72″, and 96″ in lengths of 96″, 120″, 144″, and 240″. Thickness ranges from 3/16″ to 6″. Custom sizes are available.

What is the chemical composition of SS 304 Plates? +

The chemical composition is Chromium 18–20%, Nickel 8–11%, Carbon up to 0.08%, Manganese up to 2.00%, Silicon up to 1.00%, Phosphorus up to 0.045%, Sulfur up to 0.030%, and Nitrogen up to 0.10%.

What is the price of SS 304 Plate per kg? +

SS 304 plate price depends on thickness, size, finish, and quantity. It is usually around ₹200–350 per kg in India.

What is the weight of a Stainless Steel 304 Plate? +

304 stainless steel has a density of 7.93 g/cm³ (0.285 lb/in³). Weight = thickness × width × length × density. A 6 mm × 1,250 mm × 2,500 mm plate weighs roughly 148 kg.

What is the difference between 304 and 304L Stainless Steel Plates? +

304L has lower carbon (0.03% max vs 0.08% max). This gives it better resistance to intergranular corrosion after welding. Dual-certified 304/304L plates meet both specifications.

What is the HSN code for SS 304 Plates? +

The HSN code for SS 304 plates is 7219. It is used for flat stainless steel plates that are 600 mm or wider for customs and GST.

Where can I buy 304 Stainless Steel Plates? +

Sachiya Steel International supplies ASTM A240-certified 304 stainless steel plates in all sizes and finishes. We ship worldwide with mill test certificates. Contact us for stock availability.