Stainless Steel 304 / 304L Plates and Sheets
As a trustworthy supplier and producer of Stainless Steel 304 304L plates and sheets, Stellar Alloys proves to provide material that complies with very stringent project, fabrication and engineering standards. Our SS 304 and SS 304L plates are available in HR, CR, 2B and No 1 finishes, which provide superior corrosion resistance, tank and vessel strength, formability, structural parts and precision cut parts. We also maintain a full line of stainless steel products such as SS 316 and other grades of stainless steel to help in supporting various industrial uses.
Our 304 304L stainless steel sheets are manufactured in accordance with ASTM A240 and fully certified to EN 10204 3.1 and offer reliable weldability, constant mechanical performances and service life. Grade 304 is available in a wide application in terms of chemical processing, food equipment, water treatment and general fabrication, with Grade 304L, which has regulated carbon content, being used in heavy-welded assemblies whereby carbide precipitation should be minimized.
Ready stock, cut-to-size and mill-approved sourcing, we can guarantee high quality and punctual delivery of both local and export needs. Our SS 304 304L plates and sheets are flexible in various industries depending on the reliability and durability of the plates and sheets used by the engineers, EPC contractors and procurement teams.
Stainless Steel 304 304L Plates and Sheets Supplier Manufacturer Sizes Specification
We provide reliable suppliers and manufacturers of Stainless Steel 304 304L plates and sheets in HR, CR, 2B and No 1 finish material in a broad selection of standard sizes and thicknesses to be fabricated, processing equipment and structural applications. Our SS 304 plates and SS 304L sheets are manufactured according to ASTM A240 and are handed over to the purchasers together with the full MTC, so that our buyers can get to use the materials of the necessary mechanical and chemical characteristics. UNS S30400 and UNS S30403 are obtained out of reputable mills and provide consistent future in ambient and moderately higher temperature conditions typical of food equipment, chemical processing and heat-exchanger components.
We are providing the SS 304 and SS 304L sheets in the popular sizes 1000mm, 1250mm, 1500mm and 2000mm wide with the thickness options as light-gauge sheet to be used in general fabrication and to the heavier plate sections used in tanks, vessels and industrial assemblies. The default sheet thickness is available in 1mm, 1.2mm, 1.5mm, 2mm, 3mm and more, and the plate could be of medium and heavy weights chosen in various engineering and construction industries. There are 2B, No 1, brushed and mirror finishes depending on the requirements of the application, as well as such options as perforated sheets, chequered plates and shim sheets.
We are an unaffected stockist who encourages cut-to-size supply and consistent supply of domestic and export orders. Our Stainless Steel 304 304L plates and sheets are reliable as far as weldability, corrosion resistance and versatility are concerned thus can be used in various industrial applications where durability, hygiene and compliance with specification issues are paramount.
What are Stainless Steel 304 304L Plates and Sheets?
Stainless Steel 304 304L plates and sheets are part of the austenitic stainless steel family that has diversity, longevity and great corrosion resistance. The standard 18/8 stainless steel with balanced mechanical strength, formability and weldability is Grade 304 (UNS S30400), and is used in general fabrication, food equipment, water systems and processing lines. Grade 304L (UNS S30403) provides the same performance with less carbon content and lowers carbide precipitation in the welding process and enhances reliability in applications that require a lot of welding or high-cleanliness.
These sheets and plates are made available in HR, CR, 2B and No 1 finishes and are commonly utilized in tanks, vessels, architectural components, heat-exchanger components and structural assemblies. The fact that they are stable in ambient temperature as well as moderate temperature conditions as well as the characteristics of being resistant to chemicals and moisture makes SS 304 304L a choice of preference in the engineering field, the industrial and commercial field.
Stainless Steel 304 304L Plates and Sheets Specifications (ASTM A240 / ASME SA240
| Category | Specification Details (304 / 304L) |
| Standards | ASTM A240, ASME SA240 |
| Grades | 304 (UNS S30400), 304L (UNS S30403) |
| Thickness Range | 1mm – 100mm (competitor consistent range) |
| Width Options | 1000mm, 1219mm, 1250mm, 1500mm, 2000mm (all competitors use these) |
| Length Options | 2000mm, 2440mm, 3000mm, 5800mm, 6000mm (seen across Navstar/Metline) |
| Surface Finishes | 2B, BA, No.1, No.4, 8K (mirror), checkered, embossed, hairline, brushed |
| Plate/Sheet Finish Type | Hot Rolled (HR), Cold Rolled (CR), 2B, 2D, BA finishes |
| Product Forms | Plates, Sheets, Coils, Foils, Rolls, Plain Sheet, Shim Sheet, Perforated Sheet, Chequered Plate, Strip |
| Edges Available | Mill Edge, Slit Edge, Square, Round, Rolled (common competitor data) |
| Processing Services | Shearing, Cutting to Size, Grinding, Deburring, Polishing (present in competitors like Metline) |
| Delivery Condition | With MTC EN 10204 3.1, third-party inspection available |
| Applications | Food equipment, tanks, vessels, heat exchangers, fabrication, chemical processing (consistent across all competitors) |
Manufacturer and Stockist of SS 304 304L Sheets Plates as per ASTM A240 with HR CR 2B and No 1 Finishes
Common Types of Stainless Steel 304 304L Plates and Sheets
Stainless Steel 304L Sheet
SS 304L Sheet Metal
ASTM A240 Type 304L Plate
WNR 1.4306 Coil
UNS S30403 Strip
SUS 304L Perforated Sheet
AISI 304L Foil
INOX 304L Hot Rolled Plate
304L Stainless Steel Cold Rolled Plate
Equivalent Grades of Stainless Steel 304 and 304L Plates and Sheets
| STANDARD | UNS | WNR. | AFNOR | EN | JIS | BS | GOST |
| SS 304 | S30400 | 1.4301 | Z7CN18‐09 | X5CrNi18-10 | SUS 304 | 304S31 | 08Х18Н10 |
| SS 304L | S30403 | 1.4306/1.4307 | Z3CN18‐10 | X2CrNi18-9 / X2CrNi19-11 | SUS 304L | 304S11 | 03Х18Н11 |
| SS 304H | S30409 | 1.4301 | – | – | – | – | – |
ASME SA240 Stainless Steel 304 Plate Sizes and Dimensions
| Grade | C | Mn | Si | S | Cu | Fe | Ni | Cr |
| Inconel 600 | 0.15 max | 1.00 max | 0.50 max | 0.015max | 0.50 max | 6.00 – 10.00 | 72.00 min | 14.00 – 17.00 |
Standard Dimensions and Packing Details of Inconel 600 Plates, Sheets and Coils
| SS 304 Plate Thickness | SS 304 Plate Size | SS 304 Sheet Weight per Unit Area | Estimated Weight per Sheet |
| 0.015 inches 0.381 mm | 36 x 96 | 0.630 lbs/ft²3.07566 kg/m² | 15.12 lbs6.84936 kg |
| 0.015 inches 0.381 mm | 36 x 120 | 0.630 lbs/ft²3.07566 kg/m² | 18.90 lbs8.5617 kg |
| 0.0178 inches 0.45212 mm | 36 x 96 | 0.756 lbs/ft²3.690792 kg/m² | 18.15 lbs8.22195 kg |
| 0.0178 inches 0.45212 mm | 36 x 120 | 0.756 lbs/ft²3.690792 kg/m² | 22.68 lbs10.27404 kg |
| 0.0178 inches 0.45212 mm | 48 x 96 | 0.756 lbs/ft²3.690792 kg/m² | 24.19 lbs10.95807 kg |
| 0.0178 inches 0.45212 mm | 48 x 120 | 0.756 lbs/ft²3.690792 kg/m² | 30.24 lbs13.69872 kg |
| 0.0235 inches 0.5969 mm | 30 x 96 | 1.008 lbs/ft²4.921056 kg/m² | 20.16 lbs9.13248 kg |
| 0.0235 inches 0.5969 mm | 30 x 120 | 1.008 lbs/ft²4.921056 kg/m² | 25.20 lbs11.4156 kg |
| 0.0235 inches 0.5969 mm | 36 x 96 | 1.008 lbs/ft²4.921056 kg/m² | 24.19 lbs10.95807 kg |
| 0.0235 inches 0.5969 mm | 36 x 120 | 1.008 lbs/ft²4.921056 kg/m² | 30.24 lbs13.69872 kg |
| 0.0235 inches 0.5969 mm | 36 x 144 | 1.008 lbs/ft²4.921056 kg/m² | 36.29 lbs16.43937 kg |
| 0.0235 inches 0.5969 mm | 48 x 96 | 1.008 lbs/ft²4.921056 kg/m² | 32.26 lbs14.61378 kg |
| 0.0235 inches 0.5969 mm | 48 x 120 | 1.008 lbs/ft²4.921056 kg/m² | 40.32 lbs18.26496 kg |
| 0.0235 inches 0.5969 mm | 48 x 144 | 1.008 lbs/ft²4.921056 kg/m² | 48.39 lbs21.92067 kg |
| 0.0291 inches 0.73914 mm | 30 x 96 | 1.260 lbs/ft²6.15132 kg/m² | 25.20 lbs11.4156 kg |
| 0.0291 inches 0.73914 mm | 30 x 120 | 1.260 lbs/ft²6.15132 kg/m² | 31.50 lbs14.2695 kg |
| 0.0291 inches 0.73914 mm | 36 x 96 | 1.260 lbs/ft²6.15132 kg/m² | 30.24 lbs13.69872 kg |
| 0.0291 inches 0.73914 mm | 36 x 120 | 1.260 lbs/ft²6.15132 kg/m² | 37.80 lbs17.1234 kg |
| 0.0291 inches 0.73914 mm | 36 x 144 | 1.260 lbs/ft²6.15132 kg/m² | 45.37 lbs20.55261 kg |
| 0.0291 inches 0.73914 mm | 48 x 96 | 1.260 lbs/ft²6.15132 kg/m² | 40.32 lbs18.26496 kg |
| 0.0291 inches 0.73914 mm | 48 x 120 | 1.260 lbs/ft²6.15132 kg/m² | 50.41 lbs22.83573 kg |
| 0.0291 inches 0.73914 mm | 48 x 144 | 1.260 lbs/ft²6.15132 kg/m² | 60.49 lbs27.40197 kg |
| 0.0355 inches 0.9017 mm | 30 x 96 | 1.512 lbs/ft²7.381584 kg/m² | 30.24 lbs13.69872 kg |
| 0.0355 inches 0.9017 mm | 30 x 120 | 1.512 lbs/ft²7.381584 kg/m² | 37.80 lbs17.1234 kg |
| 0.0355 inches 0.9017 mm | 36 x 96 | 1.512 lbs/ft²7.381584 kg/m² | 36.29 lbs16.43937 kg |
Polished and Plain Stainless Steel 304 Sheet Specifications
| PRODUCT | FINISH | THICKNESS MM | MAX SHEET SIZE MM |
| Grade 304 | Plain 2B | 0.9 | 2000 x 1000 |
| Bright | 0.9 | 2000 x 1000 | |
| Brushed Finish | 0.9, 1.2 | 2000 x 1000, 2500 x 1250 | |
| Rimex Super Mirror | 0.8, 1.2 | 2400 x 1200, 2500 x 1250 | |
| Embossed | 0.8, 1.0 | 2500 x 1250 |
Stainless Steel 304 Perforated Sheet Size and Specification Chart
| Hole Dia mm | Hole Centres mm | O/A | Finish | Tck mm | Full Sheet Size mm |
| 0.75 | 1.5 | 23% | 2B | 0.6 | 2000 x 1000 |
| 1 | 2 | 23% | 2B | 1.0 | 2000 x 1000 |
| 1.5 | 2.6 | 30% | 2B | 1.0 | 2000 x 1000 |
| 2 | 3.5 | 30% | 2B | 1.0 | 2000 x 1000 |
| 2 | 3.5 | 30% | 2B | 1.0 | 2000 x 1000 |
| 3 | 5 | 33% | 2B | 1.0 | 2000 x 1000 |
| 4 | 5.6 | 46% | 2B | 1.0 | 2000 x 1000 |
| 5 | 8 | 35% | 2B | 1.0 | 2000 x 1000 |
| 6 | 8 | 51% | 2B | 1.0 | 2000 x 1000 |
| 8 | 10 | 58% | 2B | 1,0 | 2000 x 1000 |
Physical Properties of Stainless Steel 304 Checker Plate
| Grade | Density (kg/m3) | Elastic Modulus (GPa) | Mean Coefficient of Thermal Expansion (μm/m/°C) | Thermal Conductivity (W/m.K) | Specific Heat 0-100°C (J/kg.K) | Electrical Resistivity (nΩ.m) | |||
| 0-100°C | 0-315°C | 0-538°C | at 100°C | at 500°C | |||||
| 304/L/H | 8000 | 193 | 17.2 | 17.8 | 18.4 | 16.2 | 21.5 | 500 | 720 |
Mechanical Properties of SS 304 Cold Rolled Plates (UNS S30400)
| Grade | Tensile Strength (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) min | Hardness | |
| Rockwell B (HR B) max | Brinell (HB) max | ||||
|
304 |
515 |
205 |
40 |
92 |
201 |
Stainless Steel 304 Plate Dimensions and Thickness Schedule
| Plate Surface finish | Thickness (mm) | Width (max mm) |
| 2B – Cold rolled, heat treated, pickled, skin passed Sheet | 0.25–8.0 | 2032 |
| 2D – Cold rolled, heat treated, pickled Sheet | 0.4–6.35 | 1524 |
| 2E – Cold rolled, heat treated, mechanically descaled plate | 0.4–8.0 | 2032 |
| 2R – Cold rolled, bright annealed plate | 0.25–3.5 | 1524 |
| 2H – Work hardened plate | 0.4–6.35 | 1524 |
| Polished, brushed plate | 0.5–4.0 | 1524 |
SUS 304L Perforated Sheet Thickness and Hole Size Chart
| Size | WT | Weight | WT | Surface Area per Unit | ||
| mm | lbs | kg | in. | lbs/ft² | kg/m² | |
| 36 x 96 | 0.45212 | 18.15 | 8.22195 | 0.0178 | 0.756 | 3.690792 |
| 48 x 120 | 30.24 | 13.69872 | 0.756 | |||
| 48 x 96 | 24.19 | 10.95807 | 0.756 | |||
| 48 x 96 | 0.73914 | 40.32 | 18.26496 | 0.0291 | 1.260 | 6.15132 |
| 30 x 120 | 0.5969 | 25.20 | 11.4156 | 0.0235 | 1.008 | 4.921056 |
| 30 x 96 | 20.16 | 9.13248 | ||||
| 36 x 120 | 30.24 | 13.69872 | ||||
| 48 x 96 | 32.26 | 14.61378 | ||||
| 36 x 96 | 24.19 | 10.95807 | ||||
| 48 x 144 | 48.39 | 21.92067 | ||||
| 48 x 120 | 40.32 | 18.26496 | ||||
| 48 x 144 | 0.73914 | 60.49 | 27.40197 | 0.0291 | 1.260 | 6.15132 |
| 30 x 96 | 0.73914 | 25.20 | 11.4156 | |||
| 36 x 96 | 30.24 | 13.69872 | ||||
| 30 x 120 | 31.50 | 14.2695 | ||||
| 36 x 120 | 37.80 | 17.1234 | ||||
| 48 x 120 | 50.41 | 22.83573 | ||||
| 36 x 144 | 45.37 | 20.55261 | ||||
| 36 x 120 | 0.45212 | 22.68 | 10.27404 | 0.0178 | 0.756 | 3.690792 |
| 30 x 96 | 0.9017 | 30.24 | 13.69872 | 0.0355 | 1.512 | 7.381584 |
| 36 x 96 | 36.29 | 16.43937 | ||||
| 30 x 120 | 37.80 | 17.1234 | ||||
Surface Finishes of 304L Stainless Steel Cold Rolled Plates
| Surface Finish |
| 2H – Work hardened |
| 2B – heat treated, Cold rolled, skin passed |
| 2R – Cold rolled, bright annealed |
| 2D – heat treated, pickled, Cold rolled |
| Polished, brushed |
| 2E – heat treated, Cold rolled |
Weight Chart of Stainless Steel 304L Sheet Metal
| Size (mm) | Weight (kg) | Size (mm) | Weight (kg) |
| 2000 x 1000 x 2 | 32.7 | 2000 x1000 x 0.9 | 14.7 |
| 3000 x 1500 x 1.5 | 55.3 | 2500 x1250 x 0.7 | 17.9 |
| 2500 x 1250 x 1.5 | 38.4 | 2000 x1000 x 0.7 | 11.5 |
| 3000 x 1500 x 2 | 73.7 | 2000 x1000 x 1 | 16.4 |
| 2500 x 1250 x 2 | 51.2 | 2500 x1250 x 0.9 | 23 |
| 3000 x 1500 x 3 | 112 | 2000 x1000 x 1.5 | 24.6 |
| 2000 x 1000 x 2.5 | 40.9 | 2500 x1250 x 1 | 25.6 |
| 2500 x 1250 x 2.5 | 63.9 | 3000 x1500 x 1 | 36.8 |
| 2000 x 1000 x 3 | 49.6 | 2500 x1250 x 1.2 | 30.7 |
| 2500 x 1250 x 3 | 77.5 | 3000 x1500 x 1.2 | 44.2 |
| 3000 x 1500 x 2.5 | 92.1 | 2000 x1000 x 1.2 | 19.6 |
Applications of Stainless Steel 304 and 304L Plates and Sheets
The use of Stainless Steel 304 and 304L plates and sheets has gained popularity in industries because of its resistance to corrosion, smooth finish on the surface and its high fabrication properties. These grades excel in conditions that have moisture, heat, and light chemicals, which make them to be applicable in various operating conditions.
- Food and beverage processing and machinery.
- Fabrication, pharmaceutical and hygienic.
- Kitchen equipment, sinks, panels and architectural interiors.
- Components of heat exchanger and evaporators.
- Storage tanks and process vessels made of chemicals.
- Cold storage equipment, dairy and brew equipment.
- Carmotive components, industrial fabrication and exhaust systems.
- Marine equipment and freshwater pumping.
Why Stellar Alloys for SS 304 / 304L Plates and Sheets
Stellar Alloys is reputed as a well-known supplier and producer of SS 304 and SS 304L plates and sheets, ensures a high degree of consistency with a quality of materials that can be traced back and quality is in accordance with the ASTM A240 / ASME SA240. We have hot rolled plates, cold-rolled sheets, perforated, and customer-cut 304L materials which can be used as machining, forming, and welding products. Every batch is subjected to strength, durability and resistance to corrosion tests to guarantee reliable work in areas of high demand.
We have got plenty of finishes, including 2B, No.4 as well as Mirror polish and we serve many industries like fabrication shops and big EPC projects. Stellar Alloys also keeps ready-to-order stock in a variety of thicknesses and dimensions, useful in reducing the time to dispatch project and the project downtime. Technical support, material certificates (MTC) and third party inspection may be organized accordingly. We are a customer-centered, competitively priced, and dependable delivery sheet and plate stockist of SS 304 / 304L preferred by local and international customers.
Frequently Asked Questions About SS 304 / 304L Plates and Sheets
SS 304 and SS 304L plates of different thickness, finish, and material availability have a price that varies depending on the thickness, finish, and availability. Hot rolled SS 304 plates are usually less expensive than cold rolled SS 304L sheet because the latter has a smoother finish and tighter tolerances. To get the recent price depending on the size and quantity, contact Stellar Alloys to have a custom quote.
The carbon content of SS 304L is lower than that of SS 304, which increases its ability to be welded, and it is less likely to show sensitization with fabricating. Both grades are in compliance with ASTM A240 and both have great resistance to corrosion but the 304L is used in pressure vessel, tanks and where heavy welding has to be done.
SS 304 sheets come in 1000 x 2000 mm, 1250 x 2500 mm and 1500 x 3000 mm and is available in 0.5 mm to 50 mm thickness. Custom cut 304 and 304L can also be supplied by Stellar Alloys, in reference to particular project specifications.
The higher cost of SS 304L can be explained by the extra processing and the high demand of the product in the pharmaceutical and chemical fields. The price variations vary depending on the finish, thickness and the market movement.
The stainless steel 304 plates have a service life that is long thanks to the balanced chromium-nickel material. These plates can work fairly well in normal atmospheric conditions or in slightly corrosive environments, and extend their service lifetime by a few decades, with little maintenance.
SS 304 and SS 304L plates come in a number of finishes, including 2B, No.1, No.4, BA, and mirror polish. Its choice is based on the needs of the application – 2B is better to use in fabrication, No.1 in industry, No.4 or mirror in architectural and decorative work.
Both grades are good however SS 304L is normally used on equipments that involve a lot of welding like tanks, heat exchangers and process piping systems. SS 304 is best applied in general fabrication, food equipment and commercial uses where moderate loads can be experienced in welding.
