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Yunus Sheets and Plates, located in Istanbul, Turkey, stands out as a top-notch manufacturer and supplier of premium stainless steel products, particularly 304H sheets and plates. The company has built a solid reputation for its dedication to precision, durability, and ensuring customer satisfaction. They cater to a wide array of industries, including chemical, petrochemical, energy, and food processing. With cutting-edge manufacturing facilities and a strict quality control system in place, Yunus Sheets and Plates guarantees that every product meets international standards. Their 304H sheets and plates are highly regarded for their outstanding heat resistance, corrosion resistance, and mechanical strength, making them a reliable choice for demanding applications around the globe.
Stainless Steel 304H is a high-carbon version of 304 stainless steel, typically composed of 18–20% chromium, 8–10% nickel, and 0.04–0.10% carbon, along with trace amounts of manganese, silicon, and phosphorus. This increased carbon content boosts its strength at high temperatures while still providing excellent corrosion resistance. In terms of mechanical properties, 304H sheets and plates deliver a tensile strength of about 515–750 MPa, a yield strength of around 205–310 MPa, and an elongation of 40–50%. This makes them perfect for structural and pressure vessel applications where durability under thermal stress is crucial.
| ASTM Specification | ASTM A240 / ASME SA240 |
|---|---|
| Standard | MSRR, AMS, BS, ASTM A240 / ASME SA240 |
| Length & Sizes | 1000 mm x 2000 mm, 1000 mm x 2000 mm, 1220 mm x 2440 mm, 1250mm x 2500mm, 1500mm x 3000mm to 6000mm, 2000mm x 4000mm to 6000mm, 1500 mm x 3000 mm, 2000 mm x 2000 mm, 2000 mm x 4000 mm, 2m, 2.44m, 3m, 36″ X 120″ or 48″ X 144″, 4′ x 8′, Cut to size available |
| Thickness | 0.1mm to 100 mm Thk |
| Width | 10-2500mm |
| Hardness | Soft, Hard, Half Hard, Quarter Hard, Spring Hard etc. |
| Temper | Annealed |
| Condition | Polished on both sides |
| Finish | Hot rolled plate (HR), Cold rolled sheet (CR), 2B, 2D, BA NO(8), SATIN (Met with Plastic Coated) |
| Stock in form of | Plate, Sheet, Coils, Foils, Rolls, Plain Sheet, Shim Sheet, Strip, Flats, Clad Plate, Rolling Sheet, Flat Sheet, Rolling Plate, Flat Shim, Blank (Circle), hot rolled, cold rolled, annealed, soft annealed, descaled, sheared, tread plate, Checker Plate |
| Value Added Service | Cladding, Heat Treatment, Annealed, Pickling, Polish, Rolling, Cutting, Bending, Forging, Minor Fabrication Etc. |
| Dealers & Distributor of | SAIL, ESSAR, JINDAL, TATA, BHUSHAN, INDIAN, POSCO, JISCO, TISCO, LISCO, BAOSTEEL IMPORTED material |
| Test Report |
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| Profiling | To provide a full profiling service we use numerous profiling methods including:
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| Specialized in |
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| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N |
| SS 304H | 0.10 max | 2.0 max | 0.75 max | 0.045 max | 0.03 max | 18 – 20 | – | 8 – 10.5 | – |
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 8.0 g/cm3 | 1400 °C (2550 °F) | Psi – 75000 , MPa – 515 | Psi – 30000 , MPa – 205 | 40 % |
| STANDARD | WERKSTOFF NR. | UNS |
| SS 304H | 1.4948 | S30409 |
| Thickness | Plate Weight per Unit Area | Density |
|---|---|---|
| 3/16 inches | 0.06000 lbs/in²42.184176 kg/m² | 0.315 lbs/in³8.72 g/cm³ |
| 1/4 inches | 0.08 lbs/in²56.245568 kg/m² | 0.315 lbs/in³8.72 g/cm³ |
| 3/8 inches | 0.121 lbs/in²85.0714216 kg/m² | 0.315 lbs/in³8.72 g/cm³ |
| 1/2 inches | 0.161 lbs/in²113.1942056 kg/m² | 0.315 lbs/in³8.72 g/cm³ |
| 5/8 inches | 0.196 lbs/in²137.8016416 kg/m² | 0.315 lbs/in³8.72 g/cm³ |
| 3/4 inches | 0.235 lbs/in²165.221356 kg/m² | 0.315 lbs/in³8.72 g/cm³ |
| 7/8 inches | 0.274 lbs/in²192.6410704 kg/m² | 0.315 lbs/in³8.72 g/cm³ |
| 1 inches | 0.313 lbs/in²220.0607848 kg/m² | 0.315 lbs/in³8.72 g/cm³ |
| 1 1/4 inches | 0.391 lbs/in²274.9002136 kg/m² | 0.315 lbs/in³8.72 g/cm³ |
| 1 1/2 inches | 0.47 lbs/in²330.442712 kg/m² | 0.315 lbs/in³8.72 g/cm³ |
| 1 3/4 inches | 0.549 lbs/in²385.9852104 kg/m² | 0.315 lbs/in³8.72 g/cm³ |
| 2 inches | 0.627 lbs/in²440.8246392 kg/m² | 0.315 lbs/in³8.72 g/cm³ |
| 2 1/4 inches | 0.705 lbs/in²495.664068 kg/m² | 0.315 lbs/in³8.72 g/cm³ |
| 2 1/2 inches | 0.784 lbs/in²551.2065664 kg/m² | 0.315 lbs/in³8.72 g/cm³ |
| 2 3/4 inches | 0.862 lbs/in²606.0459952 kg/m² | 0.315 lbs/in³8.72 g/cm³ |
| 3 inches | 0.941 lbs/in²661.5884936 kg/m² | 0.315 lbs/in³8.72 g/cm³ |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Stainless steel 304H sheets and plates offer many benefits, including excellent corrosion resistance, making them ideal for harsh environments. Due to their strength and durability, they are well suited for high temperature applications, especially in industries such as fuel and power generation. The material is highly resistant to oxidation and scaling, providing durability and reliability. Their ease of manufacture, form, and weldability allow them to be used in a variety of architectural and industrial applications. In addition, 304H offers excellent resistance to chloride-induced stress corrosion cracking, making it an excellent choice for harsh conditions
These Stainless Steel 304H sheets and plates are particularly well-suited for high-temperature applications in sectors like power generation, chemical processing, and petrochemicals. They’re commonly found in boilers, heat exchangers, pressure vessels, and furnace components, where their exceptional heat resistance guarantees long-lasting performance. Moreover, 304H is ideal for architectural and structural components that face harsh environments, maintaining both strength and corrosion resistance over time. Food processing equipment, pharmaceutical machinery, and automotive exhaust systems also take advantage of 304H’s hygienic and durable surface, making it a versatile choice for applications that require both thermal stability and resilience.
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