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Vipul Sheets and Plates, Delhi, India, is a well-established manufacturer and supplier of **Stainless Steel 13-8 PH Circles**, providing high-performance stainless steel solutions for important structural and engineering applications. Vipul’s SS 13-8 PH Circles are recognized for superior strength, corrosion resistance, and excellent mechanical properties in the condition of annealed and heat-treated. Produced to conform to strict international standards, these circles find extensive application in aerospace, nuclear, marine, and petrochemical sectors. Vipul Sheets and Plates provides consistent quality, on-time delivery, and customer-centric services for both national and international markets.
**Stainless Steel 13-8 PH** is a martensitic precipitation-strengthening stainless steel containing **chromium (12.25–13.25%)**, **nickel (7.5–8.5%)**, **aluminum (0.9–1.35%)**, and low carbon. The alloy has **high strength, superior toughness, and excellent resistance to stress corrosion cracking**. It can be heat treated to achieve a broad range of mechanical properties and is dimensionally stable in a variety of environments.
| 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 Circle provides exceptional strength, corrosion resistance and toughness, making it ideal for aerospace, marine, and high-stress applications Its precipitation hardening properties ensure superior mechanical performance and dimensional stability. The alloy’s excellent resistance to stress corrosion cracking and oxidation makes it durable in harsh environments. Its mechanical and weldability allows versatile design, while the uniformity of the material ensures reliable performance in critical applications. With excellent strength coupled with fatigue resistance, stainless steel 13-8 pH spheres are a cost-effective robust option for complex industrial and architectural applications.
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Delhi, India
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