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Saif Sheets and Plates is a premier manufacturer and supplier of Alloy Steel Gr 9 Sheets and Plates in Muscat, Oman, delivering high-chromium-molybdenum alloy solutions for elevated-temperature pressure vessels and boilers across oil, gas, petrochemical, and power sectors in the GCC and global markets. Designated ASTM A387 Grade 9 (K90941), these normalized and tempered sheets and plates offer thicknesses from 6-100mm, widths up to 3000mm, and Class 1/Class 2 variants per ASME SA387 standards for superior creep resistance up to 600°C. Saif Sheets and Plates provides precision cutting, PWHT certifications, and stock for weldable components in harsh, high-stress environments.
Alloy Steel Gr 9 Sheets and Plates feature a composition of Fe balance, Cr 8-10%, Mo 0.9-1.1%, Mn 0.3-0.6%, Si 0-1.0%, C 0-0.15%, V 0-0.04%, P/S max 0.025%, ensuring oxidation/sulfidation resistance and hardenability. Mechanical properties (Class 1) include tensile strength 415-585 MPa, yield strength min 205 MPa, elongation min 18%, reduction of area 40% min, Brinell hardness 150-180, density 7.8 g/cm³, and Young’s modulus 190 GPa. Class 2 offers higher values at 515-690 MPa tensile and 310 MPa yield, with low thermal conductivity (26 W/m·K) and thermal expansion 13 µm/m·K.
Alloy Steel Sheets and Plates Specification : ASTM A387 / ASME SA387
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.
| BS | EN | ASTM/ASME | UNS | DIN |
|---|---|---|---|---|
| – | – | A387 / SA 387 | K90941 | – |
| C | Mn | P | S | Si | Cr | Mo |
|---|---|---|---|---|---|---|
| 0.15 max | 0.25 – 0.66 | 0.030 | 0.030 | 1.05 max | 7.9 – 10.1 | 0.85 1.15 |
| A387 / SA387 Grade 9 | Class 1 | Class 2 |
|---|---|---|
| Tensile Strength (ksi) | 60-85 | 75-100 |
| Tensile Strength (MPa) | 415-585 | 515-690 |
| Yield Strength (ksi) | 30 | 45 |
| Yield Strength (MPa) | 205 | 310 |
| Elongation in 50mm (%) | 18 | 18 |
| Reduction of area in % | 45 | 45 |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Saif Sheets and Plates based in Muscat, OMAN, 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.
Alloy Steel Gr 9 Sheets and Plates offer numerous advantages, making them ideal for demanding applications. They exhibit superior strength, hardness, and wear resistance, ensuring durability in harsh conditions. The alloy’s excellent resistance to corrosion and high-temperature stability makes it suitable for aerospace, automotive, and power generation industries. Additionally, Alloy Steel Gr 9 demonstrates exceptional weldability, allowing for easy fabrication and machining. Its high tensile strength and improved fatigue resistance enhance its performance in heavy-duty applications, providing a reliable solution for structural components and high-performance machinery.
Yes, we offer custom sizes for Alloy Steel Gr 9 Sheets and Plates to meet specific project needs. Our team at Saif Sheets and Plates is dedicated to providing tailored solutions for all your requirements. For more details, contact us at sales@aaronsheetsplates.com.
Alloy Steel Gr 9 Sheets and Plates excel in pressure vessels, boilers, heat exchangers, and refinery equipment due to high-temperature strength, corrosion resistance, and creep performance. They serve petrochemical reactors, power plant tubing, and sour service components, enabling thinner walls with pitting/stress corrosion immunity. Additional uses include hydrogenators and flue gas systems, providing weldable toughness without sigma phase embrittlement.
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