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Nizar Sheetsandplates is a trusted manufacturer and supplier located in Amman, Jordan, specializing in high-performance stainless steel products designed for extremely corrosive environments. They provide SMO 254 Sheets and Plates (UNS S31254), a super austenitic stainless steel renowned for its remarkable resistance to pitting, crevice corrosion, and stress corrosion cracking. With a strong focus on quality control and precise dimensional accuracy, these sheets and plates are perfect for demanding conditions in marine, chemical, and offshore industries. Nizar Sheetsandplates is committed to meeting international standards and ensuring consistent material quality for critical applications.
SMO 254 is a super austenitic stainless steel that boasts high levels of chromium (~20%), nickel (~18%), molybdenum (~6%), and nitrogen. This advanced composition results in very high PREN values, providing exceptional corrosion resistance in chloride-rich environments. The material is characterized by high tensile and yield strength, excellent toughness, and outstanding resistance to localized corrosion. Despite its high alloy content, SMO 254 sheets and plates maintain good weldability and formability, making them ideal for challenging fabrication needs.
| Specifications | ASTM A240 / ASME SA240 |
| Thickness | 4mm-100mm |
| Width | 1000mm, 1219mm, 1500mm, 1800mm, 2000mm, 2500mm, 3000mm, 3500mm, etc |
| Length | 2000mm, 2440mm, 3000mm, 5800mm, 6000mm, etc |
| Surface | 2B, 2D, BA, NO.1, NO.4, NO.8, 8K, mirror, checkered, embossed, hairline, sand blast, Brush, etching, etc |
| Finish | Hot rolled plate (HR), Cold rolled sheet (CR), 2B, 2D, BA NO(8), SATIN (Met with Plastic Coated) |
| Grade | Ni | C | Mo | Mn | Si | Fe | Cu | S | P | Cr |
| SMO 254 | 17.5 – 18.5 | 0.02 max | 6 – 6.5 | 1 max | 0.8 max | – | 0.5 – 1 | 0.01 max | 0.03 max | 19.5 – 20.5 |
| 0.2% Proof Stress (N/mm2 ) [ksi] minimum | 300 [43.5] |
| Tensile Strength (N/mm2) [ksi] minimum | 650 |
| Elongation (%) minimum | 35 |
| Hardness (HBN) | 270 max |
| Reduction of Cross Section Area (%) | 50 |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Nizar Sheets and Plates based in Amman, Jordan, is a leading supplier and stockist of high-quality metal products, including Sheets, Plates, Coils, Foils, Angles, Channels, Circles, and Slitting Coils, all offered with exceptional service and tailored to meet our customers specific requirements. With a focus on delivering superior products, we cater to a wide range of industries, providing reliable solutions for diverse applications. Our extensive inventory includes Known for our unique finishing techniques and commitment to quality. We are dedicated to ensuring customer satisfaction through dependable service and top-notch products.
DIN 1.4547 Sheets and Plates offer exceptional corrosion resistance, particularly against pitting, crevice corrosion, and stress corrosion cracking in chloride environments. With high molybdenum and nitrogen content, it performs excellently in harsh chemical and marine conditions. The alloy provides superior strength, durability, and excellent weldability, making it ideal for high-stress applications. Its resistance to high temperatures and aggressive environments ensures long-term performance without degradation. SMO 254 is also highly resistant to oxidation, ensuring it maintains its integrity even in extreme conditions, making it a preferred choice for industries such as chemical processing, petrochemical, and marine.
| Density (Kg.m-1) | 8000 |
| Magnetic Permeability | <1.05 |
| Young’s Modulus (N/mm2) | 200 x 103 |
| Specific Heat, 20°C (J.Kg-1.°K-1) | 500 |
| Specific Electrical Resistance, 20°C (µO.m) | 0.85 |
| Thermal conductivity, 20°C | 13.5 |
Yes, we offer custom sizes for SMO 254 Sheet and Plates to meet specific project needs. Our team at Nizar Sheets and Plates is dedicated to providing tailored solutions for all your requirements. For more details, contact us at sales@aaronsheetsplates.com.
| STANDARD | UNS | WERKSTOFF NR. | AFNOR | EN | JIS | SIS | GOST |
| SMO 254 | S31254 | 1.4547 | Z1 CNDU 20.18.06Az | X1CrNiMoCuN20-18-7 | – | 2378 | – |
| Surface finish | Thickness (mm) | Width (mm) |
|---|---|---|
| 2B – Cold rolled, heat treated, pickled, skin passed | 0.25–8.0 | max. 2032 |
| 2D – Cold rolled, heat treated, pickled | 0.4–6.35 | max. 1524 |
| 2E – Cold rolled, heat treated, mechanically descaled | 0.4–8.0 | max. 2032 |
| 2R – Cold rolled, bright annealed | 0.25–3.5 | max. 1524 |
| 2H – Work hardened | 0.4–6.35 | max. 1524 |
| Polished, brushed | 0.5–4.0 | max. 1524 |
SMO 254 sheets and plates are commonly utilized in environments that face aggressive corrosive conditions. Typical applications include offshore oil and gas equipment, seawater handling systems, desalination plants, heat exchangers, and chemical processing vessels. They are also found in the pulp and paper industry, flue gas scrubbers, and pharmaceutical plants. Thanks to their exceptional resistance to chloride-induced corrosion and impressive mechanical strength, SMO 254 plates are the go-to choice for critical components that require long service life, safety, and reliability in harsh operating conditions.
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