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Harsh Metalloys is a reputable manufacturer and supplier of Stainless Steel 17-7 PH Sheets and Plates, based in Mumbai, India. These products are crafted from a precipitation-hardening stainless steel alloy (UNS S17700), known for its remarkable strength, hardness, and resistance to corrosion. The 17-7 PH alloy merges the corrosion resistance of austenitic grades with the strength of martensitic steels, making it perfect for tough applications. Harsh Metalloys offers these sheets and plates in a variety of tempers and finishes, customized to meet the demands of industries such as aerospace, petrochemical, chemical processing, marine, and general engineering, all while adhering to standards like ASTM A693.
Stainless Steel 17-7 PH Sheets and Plates mainly consist of 17% chromium and 7% nickel, with an addition of aluminum (0.75–1.5%) for precipitation hardening. This alloy boasts a tensile strength of up to 1380 MPa, a yield strength of at least 1170 MPa, and an elongation of about 6–10%, depending on the heat treatment (like TH1050 or RH950). It also provides excellent fatigue resistance, good formability, and maintains its mechanical properties even at high temperatures. After heat treatment, the alloy remains stable with minimal distortion, making it an excellent choice for components that require precise dimensional tolerances and high performance under stress.
| Element | Content (%) |
|---|---|
| Chromium, Cr | 16-18 |
| Nickel, Ni | 6.50 – 7.75 |
| Manganese, Mn | 1 max |
| Silicon, Si | 1 max |
| Aluminum, Al | 0.75 – 1.50 |
| Carbon, C | 0.09 max |
| Phosphorous, P | 0.040 max |
| Sulfur, S | 0.030 max |
| Iron, Fe | Balance |
| Property | 17-7PH ≤ 0.010 inch thick | 17-7PH > 0.010 inch thick |
|---|---|---|
| Yield Strength, min. (ksi) | 65 | 55 |
| Tensile Strength, min. (ksi) | 150 | 150 |
| Elongation, min. (%) | – | 20 |
| Hardness, max. (Rb) | – | 92 |
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Stainless Steel 17-7 PH Hot Rolled Plates are characterized by excellent strength and hardness. Available in a range of sizes and thicknesses from 3mm to 120mm, the plates have good corrosion resistance and can be used under high-stress conditions.
Stainless Steel 17-7 PH Cold Rolled Sheets have a very smooth surface finish and high precision. These sheets are available in a range of thickness from 0.2mm to 6mm. The sheets possess excellent corrosion resistance and are useful for applications that require tight tolerances.
Stainless steel 17-7 PH chequered plates have a raised pattern that increases the grip and safety. It is commercially available from 2mm to 12mm in thicknesses. It is applied in flooring and other anti-skid applications. Their good corrosion resistance suits them well for both industrial and marine environments.
The Stainless Steel 17-7 PH Perforated Sheets have many hole sizes and patterns for various filtration and ventilation applications. They are typically in the thickness of 0.3mm to 3mm. Corrosion resistance allows these sheets to be long-lasting in all uses.
Stainless Steel 17-7 PH Shim Sheet is a thin, precision-cut sheet for spacing and alignment in machinery. It is available in 0.05mm to 3mm thicknesses, giving excellent corrosion resistance. Its sheets ensure reliable performance in very demanding mechanical environments.
Stainless Steel 17-7 PH Polished Plates have a bright polish finish. They come in thickness from 3mm up to 100mm. These plates exhibit strong corrosion resistance. They are good for decorative and sanitary applications.
Stainless Steel 17-7 PH Sheets and Plates are widely utilized in various industries, including aerospace, chemical processing, nuclear reactors, marine structures, and pressure vessels, where both high strength and corrosion resistance are crucial. They’re also great for making springs, diaphragms, washers, bellows, fasteners, and medical instruments. With their impressive resistance to stress corrosion and a high strength-to-weight ratio, these plates are perfect for lightweight structures that face repeated mechanical or thermal stress. They excel in both oxidizing and mildly corrosive environments, ensuring long-lasting reliability in applications that demand durability, precise dimensions, and resistance to deformation.
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