Home > Sheet and Plates > Stainless Steel 321/321H Sheet and Plates
Niazi Stainless, located in Manama, Bahrain, stands out as a top manufacturer and supplier of premium stainless steel products, with a particular focus on SS 418 sheets and plates. Known for their unwavering dedication to quality, the company caters to a wide array of industries by delivering robust, corrosion-resistant, and precisely engineered stainless steel solutions. Thanks to their cutting-edge manufacturing techniques, rigorous quality checks, and a strong emphasis on customer satisfaction, Niazi Stainless guarantees dependable products that align with international standards. Their SS 418 sheets and plates are crafted to endure tough conditions, providing both strength and versatility for industrial, construction, and engineering projects across Bahrain and the broader GCC region.
The SS 418 stainless steel sheets and plates from Niazi Stainless boast a meticulously controlled blend of chromium, nickel, and carbon, striking a perfect balance between corrosion resistance and mechanical strength. This martensitic stainless steel type is known for its high hardness, impressive wear resistance, and moderate toughness, making it an excellent choice for structural and industrial uses. Typical mechanical properties include tensile strength between 700–850 MPa, yield strength of 450–550 MPa, and elongation around 15–20%. Its carefully managed composition ensures it can resist moderate corrosion and scaling, while also being easy to fabricate and heat treat for improved performance in various settings.
Specifications: ASTM A240 / ASME SA240
Dimensions: ASTM, ASME, and API.
Width: 1000mm, 1219mm, 1500mm, 1800mm, 2000mm, 2500mm, 3000mm, 3500mm, etc
Thickness:4mm-100mm
Length : 2000mm, 2440mm, 3000mm, 5800mm, 6000mm, etc
Surface Finish: 2B, 2D, BA, NO.1, NO.4, NO.8, 8K, mirror, chequered, embossed, hairline, sand blast, Brush, etching, Hot rolled plate (HR), Cold rolled sheet (CR), SATIN (Met with Plastic Coated) etc
Form: Coils, Foils, Rolls, Plain Sheet, Shim Sheet, Perforated Sheet, Chequered Plate, Strip, Flats, Blank (Circle), Ring (Flange) etc.
| Grade | C | Mn | Si | P | S | Cr | N | Ni | Ti |
| SS 321 | 0.08 max | 2.0 max | 1.0 max | 0.045 max | 0.030 max | 17.00 – 19.00 | 0.10 max | 9.00 – 12.00 | 5(C+N) – 0.70 max |
| SS 321H | 0.04 – 0.10 | 2.0 max | 1.0 max | 0.045 max | 0.030 max | 17.00 – 19.00 | 0.10 max | 9.00 – 12.00 | 4(C+N) – 0.70 max |
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 8.0 g/cm3 | 1457 °C (2650 °F) | Psi – 75000 , MPa – 515 | Psi – 30000 , MPa – 205 | 35 % |
Contact us to get a quick quote for your requirement.
These sheets contain high corrosion resistance and are available up to 1.2-12mm thickness and width up to 2000mm. They are ideal for high temperature application.
Cold rolled plates of SS 321H possess higher corrosion resistance and are available up to 0.3-6mm in thickness and up to 1500mm in width. They are perfect for applications requiring a smooth finish and high strength.
These plates provide outstanding resistance to corrosion, and come in thickness from 3mm up to 12mm and have sizes of up to 1500mm x 3000mm. Raised pattern surface increases the gripping value, thus commonly used for floor and structural work.
Perforated sheets are extremely resistant to corrosion and can be perforated from 0.5mm up to 20mm in diameter. The sheet thickness is also from 0.3mm up to 3mm. It is used in filtration and ventilation systems.
Shim sheets are resistant to corrosion with a high accuracy level. Thickness is available between 0.05mm up to 3mm, and cut-to-size service is also possible to get precise dimensions for several alignment and spacing applications.
Polished plates have excellent resistance to corrosion, and a reflective finish. These plates are manufactured in thickness range from 3mm to 50mm. The size for these plates up to 2000mm x 6000mm is ideal for aesthetic applications as well as a high-quality surface finish.
Niazi Stainless offers an excellent customer experience along with detailed documentation of its high-quality Stainless Steel 321/321H Sheets and Plates. We deliver key documents such as the commercial invoice, packing list, fumigation certificate, heat treatment chart, quality assurance plan, and NABL-approved lab test report, making it easier to validate the authenticity and superior quality of our products for the value-added customers. Our Stainless Steel 321/321H Sheets and Plates, meanwhile, possess diversified test certificate features, ranging from MTC accordance with EN10204 /3.1B to a PMI test Certificate, radiographic test reports having 100 % and even up to third Party Inspection. Here, too the certificates explain their customer-driven activities and unwearied product quest for superior product quality.
Niazi Stainless’s SS 418 sheets and plates are extensively utilized in the industrial, automotive, construction, and engineering fields due to their strength, durability, and resistance to corrosion. They are perfect for crafting turbine blades, pump shafts, valves, and structural components that demand wear resistance and high mechanical performance. In the construction sector, these stainless steel products are employed for cladding, panels, and reinforcement elements. Their unique combination of toughness and formability also makes them a go-to choice for a variety of applications.
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