SS 304 Sheet Plate · A240 S30400/S30403

ASTM A240 UNS S30400 / S30403 • AISI 304/304L Stainless Steel Sheet Plate Supplier

SS 304 and 304L Sheet Plates supplied by Mumbadevi Steel India (MSI) are of best quality and highly corrosion-resistant. Our ASTM A240 UNS S30400 and ASTM A240 UNS S30403 inventory is available in random lengths or cut to specific lengths to meet your exact requirements. Over the years, we have gained unique experience with pipes for different applications. We control the manufacturing process from raw material to finished product, with a constant focus on quality to meet demanding specifications.

Sheet metal is metal formed by an industrial process into thin, flat pieces. It is one of the fundamental forms used in metalworking and it can be cut and bent into a variety of shapes. Countless everyday objects are fabricated from the metal sheet. Plate and sheet are words used to describe the classification of metal depending on its thickness. While sheet metal is less than 3 mm thick, plate metal is obviously thicker than 3 mm. Alloy Plate is used in heavy-duty applications such as those found in the aerospace, military and transportation product manufacturing. Aluminium plate, machined to shape, forms the skins of jets and spacecraft fuel tanks, etc. It is used for storage tanks in many industries, in part because some aluminium alloys become tougher at supercold temperatures. This property is especially useful in holding cryogenic (very-low-temperature) materials.

Stainless Steel Plate is also used to manufacture structural sections for railcars and ships, as well as armour for military vehicles. In transportation, the metal sheets are used to manufacture panels for automobile bodies and tractor trailers. In building and construction, it is formed into products including siding, gutters, roofing, awnings and carports. Stainless Steel Sheet Plates are further categorised in following forms:

Stainless Steel Sheet: If a piece of metal has been rolled out to a thickness greater than that of a foil, but is still less than 6mm it is called sheet.

Stainless Steel Shim Sheet: A shim is thin and often tapered or wedged piece of metal. Shim Sheet is used to fill small gaps or spaces between objects. Sheet Shims are typically used in order to support, adjust for better fit, or provide a level surface.

Stainless Steel Rolled Sheet Coil: Sheet Coils are flat products wound into rolls and having a rectangular cross-section, the width of which is much larger than the thickness. Hot Rolled Sheet Coil is produced from semifinished products (slabs or billets), which are reduced to certain thicknesses by rolling and annealing and wound into a roll. Cold Rolled Sheet Coil is produced by removing rust from a hot-rolled sheet by "pickling" it in a weak acid solution, then washing, brushing, drying, oiling and unrolling the sheet and finally performing cold-rolling by passing the sheet through a reducing mill under pressure and winding it into a roll. Cold-rolled steel Coil is a more highly finished product and has a smoother surface, greater dimensional accuracy (thickness, width, length) and greater strength.

Stainless Steel Rolled Sheet Strips: Sheet Strip is a flat product which, immediately after the final rolling pass or after pickling or continuous annealing is wound into laps so as to form a coil. Strip of Sheet as rolled has slightly convex edges, but it may also be supplied with sheared edges or slit from a wider strip. Wide Strip is a strip of a width 600 mm or over, Whereas, Narrow Strip is a strip of a width less than 600 mm.

Stainless Steel Plate: Once the metal is more than 6mm thick it is known as plate metal. This type of material is used in circumstances whereby strength and durability are of the utmost importance.

Stainless Steel Diamond Plate: Diamond plate, also known as a chequered plate, thread plate and floor plate, is a type of metal designed with a regular pattern of raised diamonds or lines on one side, with the reverse side being featureless. Diamond plate is usually stainless steel or alloy.

Mumbadevi Steel India (MSI) offers Stainless Steel Sheet and Stainless Steel Plates in a wide range of dimensions. The size range of sheet plate available is 1000 mm x 2000 mm, 1220 mm x 2440 mm, 1500 mm x 3000 mm, 2000 mm x 2000 mm, 2000 mm x 4000 mm. We provide high-quality 304/304L plate and 304/304L sheet conforming to IS, BS, ASTM, UNS specifications for many applications including custom fabrication and construction projects. We are a reliable suppliers of approved pipes, fittings and flanges as well as special items from European, Indian and Japanese origin, approved to Norsok M-650 for the oil and gas sector, shipyards and land-based industry. We have exported Sheet Plates in many countries namely South Africa, Thailand, Indonesia, Australia, Japan, Malaysia, Canada, Brazil, Chile, UK, Saudi Arabia, Qatar, Iran, Sweden, Turkey, Bangladesh, Myanmar, Norway, Omam, etc.

• Sheet Plate Specification: ASTM A240 UNS S30400, ASTM A240 UNS S30403, ASME SA240 UNS S30400, ASME SA240 UNS S30403 & EN 1.4301
• Size: 1000 mm x 2000 mm, 1220 mm x 2440 mm, 1500 mm x 3000 mm, 2000 mm x 2000 mm, 2000 mm x 4000 mm
• Thickness: 0.1mm to 12 mm Thk
• Type: 304/304L Sheet, 304/304L Plate, 304/304L Coil, 304/304L Flat
• Form: Hot Rolled, Cold Rolled, Perforated, chequered
• Finish:Mirror Finish, BA Finish, 2B Finish, No. 4 Finish
• Origin: Indian Origin, European Origin, Japanese Origin
• Testing and Documents: Mill Test Certificates, EN 10204 3.1, Chemical Reports, Mechanical Reports, Destructive Test Report, Non Destructive Test Reports, PMI Test Reports, Visual Inspection Reports, Third Party Inspection Reports, NABL Approved Lab Reports
• Packing: Packed in Wooden Boxes, Bubble wraps, Steel Strips Bundled, or as per Customers Requests

304/304L Alloy Sheet Plate Sizes in Stock

Material	Size	Thickness	Specification	Make
304/304L Plate / Sheet / Flat / Coil	1250 mm x 2500 mm	0.1mm to 12 mm Thk	IS, BS, ASTM, UNS	Indian, European and Japanese origin
	1000 mm x 2000 mm
	1220 mm x 2440 mm (4' x 8')
	1500 mm x 3000 mm
	2000 mm x 2000 mm
	2000 mm x 4000 mm

---

Properties of 304/304L alloy

304/304L Cold Forming

Type 304/304L is readily formed and fabricated through a full range of cold working operations. It can be used in heading, drawing, bending, and upsetting. Any cold working operations will increase the strength and hardness of the material, and may leave it slightly magnetic.

304/304L Hot Forming

Type 304/304L can be forged in the 1700-2200°F range. For maximum corrosion resistance, forgings should be annealed at 1900°F minimum and water quenched or rapidly cooled by other means after hot working operations.

304/304L Machining

Type 304/304L is a tough austenitic stainless steel subject to work hardening during deformation and, unless modified for improved machining response, is resistant to chip breaking. The best machining results are achieved with slower speeds, heavier feeds, excellent lubrication, sharp tooling, and powerful, rigid equipment.

304/304L Welding

Type 304/304L is readily welded by a full range of conventional welding procedures (except oxyacetylene). AWS E308L/ER308L filler metals should be used with Type 304/304L steel, but the molybdenum-containing austenitic stainless steel filler metals may also be considered.

304/304L Heat Treatment

Annealing: Type 304/304L should be heated to 1900ºF minimum and water quenched or rapidly cooled by other means.
Hardening: Type 304/304L cannot be hardened by heat treatment. However, Type 304/304L can be hardened by cold working.

Services We Offer

Documentation

Documentation is a very important part of the products we supply, and we work continuously to enhance the efficiency of the document-handling process without compromising quality of the product. Documents provided along with the shipment include Certificate of Origin, Material Test Certificate as per EN 10204 3.1 and 10204 3.2, NACE MR10103 and NACE MR0175 certified Test Certificates.

Quality Assurance

Stainless Steel Plate Sheets are manufactured and controlled to international standards such as ASTM, ASME, BS, MSS, EN, DIN or WERKSTOFFE. Our products undergo stringent quality tests before they are dispatched.

Material Testing

PMI Testing, Ultrasonic Test, Mechanical Testing, Spectro Tests for Chemical Analysis of the grade, Flaring Test, IGC, etc. are some of the tests conducted at our facility. We welcome stage wise inspection from any of your representative or third party inspection agencies.

Packing and Delivery

The product is wrapped and packed in wooden crates or carton boxes. Our primary goal is to deliver quality products in time, no matter where the client is located.