ASTM A240/A240M · UNS S30400

304 Stainless Steel Plate

Austenitic Stainless Steel · Flat Plate & Sheet · BAOSTEEL METAL

ASTM A240/A240MUNS S30400Factory Supply
FOR BULK PROCUREMENT

Get Grade 304 Plate to Your Specification.

Source 304 stainless steel plate for fabricated equipment, industrial panels and project orders. Send your sizes, finish, total quantity and destination to request factory pricing.

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8 Million MTActual Annual Steel Production
1 Million MTRegular Steel Inventory
500,000 m²Factory Area
1,000+Employees
PRODUCT SPECIFICATIONS

Specify Your 304 Stainless Steel Plate

Choose your required steel grade, thickness, finish and inspection scope for a focused quotation.

Product304 Stainless Steel Plate / Sheet
Grade304 / UNS S30400
FamilyChromium–nickel austenitic stainless steel
Product StandardASTM A240/A240M-26, or agreed purchase edition
General RequirementsASTM A480/A480M where applicable
European DesignationEN 1.4301 (check ordered standard and condition)
Supply FormFlat plate, flat sheet, cut-size pieces by enquiry
DimensionsSpecify thickness × width × length
FinishNo. 1 / 1D, 2B, BA, No. 4 — according to gauge and supply conditions
DocumentsMaterial test certificate and inspection details to order

Send Your Purchase List

Include your drawing or plate schedule to receive an order-specific quotation.

  • Grade 304 / S30400 and required standard
  • Plate dimensions and total tonnage
  • Surface finish and edge requirements
  • Inspection certificates and destination port

You can include several thicknesses or cut-piece sizes in one enquiry.

GRADE 304 · UNS S30400

304 Stainless Steel Chemical Composition

The specified heat composition and material certificate establish the accepted chemistry for your order.

ElementASTM A240 Flat-Product ReferenceElementASTM A240 Flat-Product Reference
Chromium (Cr)17.5–19.5%Nickel (Ni)8.0–10.5%
Carbon (C)≤ 0.07%Manganese (Mn)≤ 2.00%
Silicon (Si)≤ 0.75%Phosphorus (P)≤ 0.045%
Sulfur (S)≤ 0.030%Nitrogen (N)≤ 0.10%

Reference values for 304 / UNS S30400 flat products. Final acceptance follows the standard edition specified in your purchase order and the material test certificate.

MECHANICAL PROPERTIES

Published Annealed Grade 304 Strength

Review the required condition, product form and test criteria together with your material specification.

PropertyPublished annealed 304 reference
0.2% Proof / Yield Strength205 MPa minimum
Tensile Strength515 MPa minimum
Elongation in 50 mm40% minimum
Hardness201 HB maximum / 92 HRB maximum
Nominal Density7,900 kg/m³

304 Plate for Your Fabrication Process

Type 304 offers a useful combination of corrosion resistance, formability and weldability for general industrial equipment and structures.

Include your service environment, fabrication drawings and material condition so your specification can be reviewed with the quotation.

Need a low-carbon welded grade?

Explore 304L →

Mechanical values follow published ASTM A240 annealed reference data. Cold-worked material and other product conditions have their own acceptance values.

SURFACE & DELIVERY FINISH

Choose the Finish Before You Order

Match your surface specification to forming, cleaning and final-part appearance.

No. 1 / 1D

Hot-rolled, annealed and descaled finish for industrial plate.

2B / BA

Cold-rolled finishes for applicable thin sheet thicknesses and appearance requirements.

No. 4 / Polished

Directional brushed finishes for specified equipment and decorative components.

Finish options and available thicknesses vary by production route. Confirm the finish, surface protection and acceptance details with your RFQ.

INDUSTRIAL APPLICATIONS

Where You Can Use 304 Stainless Steel Plate

Specify the product form and surface for each part, assembly and operating environment.

Equipment Frames & Panels

Machine enclosures, access panels and fabricated industrial equipment.

Food-Processing Equipment

Specified equipment covers, supports and manufacturing assemblies.

Tanks & Process Assemblies

Fabricated vessels and process components with defined service media.

Architectural Metalwork

Interior and selected exterior panels, cladding and fabricated trims.

Commercial Equipment

Cabinets, shelving, hardware covers and formed fixtures.

Transport & Handling

Protective panels, platforms and selected equipment components.

Send drawings, finish specifications and quantity for your fabricated parts.

MATERIAL SELECTION

304 vs 304L vs 316L

Compare the material requirements that matter for your welding, corrosion exposure and project specification.

GradeUNSPurchasing characteristicRelated page
304S30400General-purpose chromium–nickel austenitic plateCurrent grade
304LS30403Low-carbon variation frequently specified for welded assembliesExplore grade →
316S31600Molybdenum-containing stainless steel for selected more corrosive exposureExplore grade →
316LS31603Low-carbon, molybdenum-containing grade for specified welding and service conditionsExplore grade →

These grades have distinct chemical requirements. Select the exact grade stated in your purchase specification.

PLATE WEIGHT CALCULATOR

Estimate Your 304 Plate Order Weight

Use nominal density to estimate purchase tonnage from plate dimensions and number of pieces.

—Theoretical mass using 7,900 kg/m³

Calculated mass is indicative. Shipment tonnage follows the confirmed material and order basis.

Quote by Plate Size or Tonnage

Your enquiry can cover full plates, cut-size blanks and multiple dimensions in one order.

  • Dimensions in mm or inches
  • Quantity in pieces or metric tons
  • Required finish and packing method
  • Inspection documents and destination
WHY BAOSTEEL METAL

A Manufacturing Partner for Bulk Steel Procurement

Bring your grade, finishing and testing requirements together with planned shipment volumes.

8 Million MT Annual Output

Actual annual steel production across our company’s product range supports industrial-scale supply planning.

1 Million MT Inventory

Regular company-wide steel stock supports procurement coordination. Confirm your grade 304 dimensions and availability.

Specification-Focused Supply

Include UNS S30400, surface finish, dimensional tolerance and test records in your enquiry.

Export Order Coordination

Discuss packing, shipment lots, destination ports and delivery terms with your factory quote.

MANUFACTURING & STOCK

Confirm Grade 304 Plate Availability

Submit your full plate specification and target shipment schedule. Our team will check the appropriate supply arrangement, quantity, finish and order documentation.

  • Multiple sheet sizes and plate thicknesses
  • Surface and edge condition by order
  • Supply planning for repeated purchase schedules
Steel Inventory
QUALITY ASSURANCE

Material Traceability and Inspection

Define your material acceptance requirements in the purchase order.

Material Verification

Include grade analysis, mechanical testing, MTC and heat traceability requirements with the specification.

  • UNS S30400 heat composition
  • Room-temperature mechanical properties
  • Surface, thickness and flatness inspection
  • Third-party inspection scope where agreed

Inspection with Your Purchase Order

Our sales and technical teams will confirm the certificate type, inspection details and accepted material standard for your shipment.

OPTIONAL CUTTING

Send Drawings for Cut-to-Size Plate

Add finished dimensions and drawing tolerances to your stainless plate order. Laser cutting, plasma profiling and drilling can be reviewed with the confirmed thickness and quantity.

PACKING & DELIVERY

Prepare Your Stainless Plate Shipment

Specify protective packaging, edge protection, handling requirements and your destination port. We will include the confirmed packing and shipping arrangements in your quotation.

  • Surface protection and stable plate stacking
  • Lot identification and shipping documents
  • Destination, delivery terms and shipment lots
PROCUREMENT QUESTIONS

Grade 304 Plate Buying Details

Which details help you quote 304 stainless plate accurately?

Send UNS S30400, plate thickness, width, length, finish, quantity, required MTC and destination port.

Which finishes can I request for grade 304?

Common selections include No. 1 / 1D, 2B, BA and No. 4, with availability checked by the required gauge and finish.

How does 304 differ from 304L and 316?

304L specifies lower carbon for welding-related requirements. 316 contains molybdenum and is selected for certain more demanding corrosion environments.

Can I add drawings to my purchase enquiry?

Attach your cut-piece drawings or material schedule to the RFQ. Our team will confirm achievable sizes, processing and delivery terms.

READY TO PURCHASE

Request Your 304 Stainless Steel Plate Quote

Send dimensions, surface finish, quantity and destination. Receive a specification-based factory quotation from BAOSTEEL METAL.

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