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303 Stainless Steel Plate & Sheet

303 Stainless Steel Plate & Sheet

SteelPRO Group is a 303 stainless steel supplier and manufacturer. We offer a wide range of services including custom cutting, precision manufacturing, fast delivery, quality control and technical support.

Our products: 303 hot rolled plate, 1.4305 cold rolled plate, 303 annealed plate, polished plate, 303 pickled sheet, 303 cut plate, 303 heat treated sheet, 303 brushed plate, 303 hot rolled sheet, SUS303 cold rolled sheet, 303 BA finish sheet, 303 perforated sheet.

Standard

ASTM A167, ASTM A240, EN 10088-2, ISO 9445, JIS G4304

Grade

1.4305, 303S31, SUS303, X8CrNiS18-9

Length

2000 mm-6000 mm (78.74-236.22 in), Customized

Thickness

Customized, Plate: 3 mm to 150 mm (0.12-5.91 in), Sheet: 0.3 mm-6 mm (0.012-0.24 in)

Full Width

1000 mm-2000 mm (39.37-78.74 in), Customized

Surface Finish

2B, BA, Customized, No.1, No.4, No.8, Pickling

Technique

Cold Drawn, Cold Rolled, Customized, Hot Rolled

Form

303 Coil, 303 Foil, 303 Strip, Annealed plate, Brushed Sheet, Cold Rolled Sheet, etc., Flat Plate, Flat sheet, Heat Treated Plate, Hot Rolled Plate, Perforated sheet, Polished sheet

303 Stainless Steel Plate & Sheet

303 Stainless Steel Plate & Sheet

303 stainless steel plates and sheets are austenitic stainless steel. They have excellent machinability, good corrosion resistance and a smooth surface finish. They are non-magnetic in the annealed state and are easy to cut and form.
  • 303 plate is flat but thick and is often used to make heavy parts such as base plates, mounting brackets and structural components in industries such as automotive, construction and heavy machinery.
  • 303 sheet is flat and thin, making it ideal for lighter applications such as decorative panels, covers and housings in industries such as food processing, mechanical equipment and architectural design.
sheet plate surface finish

Business Terms

Business Terms

Terms Specification
Minimum Order Quantity: 5 Tons
Price: To be negotiated
Packaging Details:
As Requested
Delivery Time: Within 7-10 Working Days
Payment Terms: T/T, L/C, Credit Card
Supply Ability: 100000 Tons per month
Certification: RoHS, BIS, SABS, tisi, KS, JIS, ISO9001
Export To:
United States, Canada, India, United Kingdom, Australia, Germany, Indonesia, Mexico, Netherlands, Russian Federation, Brazil, Malaysia, Philippines, South Africa, Indonesia, Singapore, Taiwan, Vietnam, etc.

Chemical Compositions

Chemical Compositions

ElementChromium (Cr)Nickel (Ni)Carbon (C)Manganese (Mn)Silicon (Si)Phosphorus (P)Sulfur (S)
Composition (%)17.0 – 19.08.0 – 10.0≤ 0.15≤ 2.0≤ 1.0≤ 0.200.15 – 0.35

Physical Properties

Physical Properties

Mechanical PropertyValue (Metric)Value (Imperial)
Tensile Strength500 – 1300 MPa72.5 – 188.5 ksi
Yield Strength275 – 1030 MPa40 – 149.5 ksi
Brinell Hardness (HB)180 – 360 HB180 – 360 HB
Rockwell Hardness (HRC)20 – 45 HRC20 – 45 HRC
Vickers Hardness (HV)200 – 370 HV200 – 370 HV
Elongation20% – 30%20% – 30%
Elastic Modulus200 GPa29 x 10³ ksi

Heat Treatment

Heat Treatment

Sheet Plate Heat Treatment
  • Annealing: Material is heated to 1010°C – 1120°C (1850°F – 2050°F). It is then rapidly cooled by water quenching or air cooling.
  • Stress Relief: Material is heated to 425°C – 600°C (800°F – 1100°F) for 1 to 2 hours and then slowly cooled in air.
  • Solution Treating: Solution treating is part of the annealing process where 303 is heated to annealing temperature (1010°C – 1120°C) to dissolve alloying elements and produce a homogeneous austenitic structure.
  • Hardening (Precipitation Hardening), Quenching, Tempering: Not applicable to 303 stainless steel.

Characteristic

Characteristic

  • 303 plates are characterized by their thicker dimensions, providing high strength and impact resistance, making them suitable for heavy-duty applications such as structural components and industrial machinery. While offering excellent machinability due to sulfur content, they have moderate corrosion resistance and are not ideal for highly corrosive environments.
  • 303 sheets are thinner, more flexible, and easier to form, making them ideal for lightweight applications requiring precision machining or forming, such as automotive components, decorative panels, and consumer goods. They offer moderate corrosion resistance and are more cost-effective due to their lower material requirements compared to plates.
Stainless steel insulation board

Our Service

Our Service

1.Welding

2.Metal Fabrication

3.CNC Machining

4.Lathe

5.Forming

6.OEM/ODM

7.Quenching 

8.Tempering

UT And Hardness Testing

UT And Hardness Testing

UT And Hardness Testing Info

Surface Finish

Surface Finish

Stainless Steel Sheet Plate Surface Finish

2B Surface

Stainless Steel Sheet Plate Surface Finish

2D Surface

BA Surface

6K Surface

Stainless Steel Sheet Plate Surface Finish

8K Surface

Stainless Steel Sheet Plate Surface Finish

HL Surface

Stainless Steel Sheet Plate Surface Finish

NO.1 Surface

Stainless Steel Sheet Plate Surface Finish

NO.4 Surface

Embossed Surface

Packing

Packing

We understand that receiving intact materials is just as important as quality.

  • Safe, damage-free delivery: All items are wrapped with protective film and placed in durable, waterproof packaging to ensure they arrive at your facility intact.
  • Customized packaging options: Whether you are ordering in bulk or small quantities, we offer flexible packaging options to meet your needs. For bulk orders, plates and sheets will be packed with sturdy wooden pallets and steel straps to ensure stability during transportation.
  • Clear labeling: All packages are clearly marked with product details, including thickness, size, and material specifications, making it easy to identify your order upon arrival and during inventory management.
  • Environmentally friendly materials: We strive to reduce our impact on the environment and use recyclable and sustainable packaging materials whenever possible, ensuring that our packaging is not only durable but also environmentally friendly.
sheet_plate -packing
sheet plate packing
sheet plate packing
sheet plate packing
sheet plate packing
sheet plate packing

Why Choose Us

Why Choose Us

There are some 304 series stainless steel plates in the warehouse.

If you need material for machining, fabrication or structural applications, SteelPRO Group offers premium 303 stainless steel plates and sheets.

  • Superior Machinability: Our 303 stainless steel plates and sheets are optimized for easy machining and are ideal for applications that require precision cutting, forming and fabrication. The increased sulfur content minimizes tool wear and increases the efficiency of the fabrication process.
  • Custom Solutions: All plates are available in a variety of thicknesses and finishes to meet your specific project needs. Custom sizes and finishes are available upon request.
  • Consistent Quality: We maintain stringent quality control measures at every step of the manufacturing process. This ensures that each plate and sheet meets the highest industry standards and provides reliable performance in all your applications.
  • Fast Delivery and Competitive Pricing: With efficient production capabilities and extensive inventory, we offer fast delivery times without compromising on quality. Our competitive pricing ensures you get the best value for your investment.
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