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Hassan Sheets and Plates is a reputable manufacturer and supplier of Stainless Steel 13-8 PH Circles based in Riyadh, Saudi Arabia. We provide top-notch stainless steel products specifically designed for aerospace, petrochemical, and high-performance engineering applications. Stainless Steel 13-8 PH is a precipitation-hardening martensitic alloy celebrated for its exceptional strength, toughness, and impressive resistance to stress corrosion cracking. With a carefully controlled composition and precise processing, our circles offer remarkable dimensional accuracy and durability. Manufactured to meet international standards, our SS 13-8 PH Circles are extensively utilized in defense, aircraft components, valves, and marine equipment that demand both strength and reliability.
Stainless Steel 13-8 PH Circles are made up of iron, chromium (12.25–13.25%), nickel (7.5–8.5%), aluminum, along with carefully controlled amounts of carbon, manganese, and silicon. This well-balanced composition guarantees high strength, excellent toughness, and outstanding corrosion resistance. The alloy is particularly known for its impressive yield strength and resistance to stress corrosion cracking, especially in marine and aerospace settings. With high tensile strength, good ductility, and excellent fatigue resistance, 13-8 PH maintains its mechanical stability even in harsh conditions. Its precipitation-hardening properties enable it to be heat-treated to achieve the desired strength levels.
| Specifications | ASTM A240, ASME SA240 |
| Dimensions | ASTM, ASME and API |
| Standard | JIS, AISI, ASTM, GB, DIN, EN, etc. |
| Thickness | 1 Mm To 100 mm. |
| Diameter | Upto 2000 Mm. |
| Circle Diameter | 3″ DIA up to 38″ DIA 1500 lbs max. |
| Circles Form | Hot Rolled Circles, Cold Rolled Circle, Proof Machined Circles. |
| Cr 12.25 – 13.23% | Ni 7.50 – 8.50% | Mo 2.00 – 2.50% | Al 0.90 – 1.35% | N 0.010% | |||||
| Mn 0.10% | Si 0.10% | C 0.05% | P 0.010% | S 0.008% |
| Tensile (UTS)N/mm² | 0.2% YieldN/mm² | Elongation(50.8mm) %) | HardnessHRc | Reductionof Area |
| 1965 | 1896 | 2 | 57 | 10 |
| Alloy | UNS Number | SAE Number |
| 13-8 PH | UNS S13800 |
| Density | Electrical conductivity (% IACS) | Thermal conductivity (BTU-in/hr-ft²-°F) | Specific heat capacity | Thermal expansion (1/°F) | Melting Point (°F) |
| 0.282 | 1.72 | 97 | 0.11 | 0.00000589 | 2560 |
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 13-8 PH Circles are a go-to choice for applications that require both high strength and resistance to corrosion. The aerospace industry relies on them for aircraft landing gear, structural components, and fasteners, thanks to their impressive toughness and ability to withstand fatigue. In the defense sector, these circles are essential for missile parts and equipment that face high stress. The marine industry also makes good use of them in shafts, valves, and pumps, where being resistant to seawater corrosion is crucial. Additionally, they find their place in chemical processing, nuclear reactors, and petrochemical equipment. Their outstanding performance under pressure makes them perfect for critical industrial applications.
The stainless steel 13-8 PH Circle is widely used in applications requiring high strength, corrosion resistance and good hardness. Because of its excellent performance under extreme conditions it is commonly used in turbine components, system assemblies and aerospace components Ability to withstand harsh environmental conditions This alloy is used in medical devices, nuclear reactor parts, petrochemical machinery Its mechanical performance, heat treatment versatility and automotive safety and marine industries Makes it suitable for precision engineering parts.
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Riyadh, Saudi Arabia
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