Harsh Metalloys stands out as a leading manufacturer and supplier of Stainless Steel 17-4 PH Bars, proudly based in Mumbai, India. These bars are crafted from 17-4 PH stainless steel (UNS S17400), a remarkable precipitation-hardening martensitic alloy celebrated for its exceptional strength, hardness, and decent corrosion resistance. Perfect for applications that demand high mechanical performance, these bars are also easy to fabricate and maintain excellent dimensional stability. Harsh Metalloys provides these bars in various shapes, including round, square, and hex, serving industries like aerospace, marine, petrochemical, nuclear, and general engineering, all while adhering to international quality standards.
Stainless Steel 17-4 PH Bars are made up of roughly 17% chromium, 4% nickel, and 3–5% copper, with niobium added for precipitation hardening. These bars boast impressive tensile strength reaching up to 1100 MPa, yield strength around 1000 MPa, and hardness levels up to 44 HRC, depending on the heat treatment (with conditions ranging from H900 to H1150). The alloy retains its strength and corrosion resistance even at service temperatures of up to 316°C. It offers a fantastic blend of toughness, good machinability, and weldability, along with corrosion resistance comparable to 304 stainless steel, making it a top choice for high-performance structural and mechanical applications.
| Grade | C | P | Si | Ni | Cu | Fe | Mn | S | Cr | Cb+Ta |
| SS 17-4 PH | 0.07 | 0.04 | 1.0 max | 3.0 – 5.0 | 3.0 – 5.0 | Bal | 1.0 max | 0.03 | 15.0 – 17.5 | 5 X C / 0.45 |
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At Harsh Metalloys, all stainless steel 17-4 PH panels have been rigorously tested and quality assured to meet international standards. Our products are certified for durability, tensile strength and corrosion resistance, backed by material test certificates (MTC) and third-party inspections. Trust in our commitment to providing reliable and quality stainless steel solutions.
17-4 PH round bars offer high strength and excellent corrosion resistance, ideal for aerospace, marine, and industrial applications, providing durability and reliability in demanding environments.
17-4 PH flat bars deliver superior strength and corrosion resistance, suitable for structural components, aerospace parts, and industrial equipment, ensuring long-lasting performance under high stress and corrosive conditions.
17-4 PH square bars provide exceptional strength and fatigue resistance, perfect for use in aerospace and industrial applications where high performance and durability are required.
17-4 PH rectangular bars are used in high-stress applications, offering excellent strength and corrosion resistance, ideal for aerospace, chemical processing, and industrial components.
17-4 PH hexagonal bars offer high strength and resistance to corrosion, suitable for making aerospace parts, mechanical components, and industrial fittings, ensuring durability in challenging environments.
17-4 PH T-bars provide exceptional performance in aerospace and industrial applications, delivering high strength and corrosion resistance, ideal for structural support and critical components.
Stainless Steel 17-4 PH Bars are widely utilized in various industries, including aerospace for structural components, turbine parts, and even in nuclear reactor systems. You’ll also find them in petrochemical tools, pump shafts, and marine hardware. Thanks to their impressive strength and hardness, they’re perfect for fasteners, valves, gears, shafts, and high-performance automotive parts. These bars aren’t just limited to heavy-duty applications; they’re also found in food processing equipment, paper mills, and chemical processing systems. One of the standout features of this alloy is its ability to be age-hardened after fabrication, allowing for tailored strength levels that make it incredibly versatile for different engineering needs. Plus, Stainless Steel 17-4 PH Bars comply with global standards like ASTM A564 and AMS 5643, which guarantees their reliability and long-lasting performance.
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