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MERIH STAINLESS, Istanbul, Turkey-based company, is a recognized name in the supply and manufacture of high-grade Stainless Steel 347/347H Sheets and Plates. With a focus that lies equally in precision, durability, and international standards compliance, MERIH STAINLESS provides products that are up to the challenging needs of various industries. These plates and sheets are designed for superior performance in corrosive and high-temperature applications. With state-of-the-art manufacturing processes and stringent quality tests, MERIH STAINLESS provides reliability, strength, and consistency. With their focus on timely delivery and customer satisfaction, they are a top choice for stainless steel flat product needs globally.
Stainless Steel 347/347H Plates and Sheets are stabilized austenitic stainless steels with Chromium (17–20%), Nickel (9–13%), and Niobium (or Columbium) added for increased resistance against intergranular corrosion. The Carbon content varies slightly: 347 has ≤0.08%, whereas 347H has 0.04–0.10%, which provides increased strength at higher temperatures. The mechanical properties consist of a tensile strength of minimum 515 MPa, yield strength of minimum 205 MPa, and 40% elongation. These grades have outstanding mechanical and oxidation resistance up to 870°C (1600°F), which is perfect for thermal cycling and long-term operation under demanding environments.
Stainless Steel Sheets and Plates Specification : ASTM A240 / ASME SA240
Dimension Standard : JIS, AISI, ASTM, GB, DIN, EN, etc
Width : 1000mm, 1219mm, 1500mm, 1800mm, 2000mm, 2500mm, 3000mm, 3500mm, etc
Length : 2000mm, 2440mm, 3000mm, 5800mm, 6000mm, etc
Thickness : 0.3 mm to 120 mm
Form : Coils, Foils, Rolls, Plain Sheet, Shim Sheet, Perforated Sheet, Chequered Plate, Strip, Flats, Blank (Circle), Ring (Flange) etc.
Surface Finishing : Hot rolled plate (HR), Cold rolled sheet (CR),2B, 2D, BA, NO.1, NO.4, NO.8, 8K, mirror, Chequered, embossed, hair line, sand blast, Brush, etching, SATIN (Met with Plastic Coated) etc.
| C | Cr | Mn | Ni | P | S | Si | Cb/Ta | |
|---|---|---|---|---|---|---|---|---|
| 347 | 0.08 max | min: 17.0 max: 20.0 | 2.0 max | min: 9.0 max: 13.0 | 0.04 max | 0.30 max | 0.75 max | min:10x C max: 1.0 |
| 347H | min: 0.04 max: 0.10 | min: 17.0 max: 20.0 | 2.0 max | min: 9.0 max: 13.0 | 0.03 max | 0.30 max | 0.75 max | min:10x C max: 1.0 |
| Grade | Tensile Strength ksi (MPa) min | Yield Strength 0.2% ksi offset ksi (MPa) min | Elongation (% in 50mm) min | Hardness (Brinell) MAX | Hardness (Rockwell B) MAX |
|---|---|---|---|---|---|
| 347/347H | 75 (515) | 30 (205) | 40 | 201 | 95 |
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Known for excellent corrosion resistance, these sheets are produced through hot rolling. They are available in thicknesses from 3mm to 50mm and widths up to 2000mm, providing durability in high-temperature environments and are used in heavy-duty applications
These plates are cold-rolled for a smooth finish and have superior corrosion resistance. They are available in thicknesses ranging from 0.5mm to 12mm and widths up to 1500mm, which is ideal for precision applications and structural components.
These plates offer excellent corrosion resistance, with a patterned surface for better traction and safety. They are available in various thicknesses, from 1.5mm to 6mm, and up to 1500mm in width, which makes them useful for flooring and industrial applications.
Offering high corrosion resistance, the sheets are perforated in a variety of hole patterns to achieve ventilation and aesthetics. Typical thicknesses vary between 0.5mm to 6mm, while the width may be up to 2000mm for filter applications and decorative panels.
The shim sheets have excellent corrosion resistance. Thickness can range from 0.1mm to 2mm, width up to 1000mm, and are precision cut for exact measurements. They are used where fine adjustments are necessary.
These plates feature outstanding corrosion resistance, and have a polished surface for enhanced appearance and cleanliness. They are available in widely used thicknesses that range from 3mm to 25mm and widths up to 2000mm. They find applications mainly in decorative and sanitary use.
Merih Stainless will provide customers with an unmatched customer experience based on complete documentation about our superior Stainless Steel 347 and 347H sheets and plates. Essential documents including commercial invoices, packing lists, fumigation certificates, heat treatment charts, quality assurance plans, and NABL-approved lab test reports shall be provided from time to time by us in our products that ascertain the genuity and exceptional quality of products supplied to the valuable customers. Our Stainless Steel 347/347H sheets and plates also include a test certificate: MTC as per EN 10204/3.1b, PMI Test Certificates, 100% radiography test reports, and Third Party Inspection Certificates, in regard to our strict quality commitment toward our valued clients.
Stainless Steel 347/347H Sheets and Plates find extensive application in high temperature and severe chemical condition applications. Some of their main application areas are heat exchangers, boiler parts, furnace components, superheater tubes, and exhaust systems in power generation, petrochemical, and refinery industries. These alloys are also employed in aircraft engine components, chemical processing equipment, and food processing equipment where heat and corrosion resistance are paramount. The increased creep strength of 347H qualifies it to be used in pressure-containing parts under conditions of high temperatures. These sheets and plates provide excellent stability and service life in oxidizing and reducing conditions.







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