Harsh Metalloys stands out as a top manufacturer and supplier of Stainless Steel 17-7 PH Bars, proudly based in Mumbai, India. These bars are crafted from a robust, precipitation-hardening stainless steel alloy (UNS S17700) that boasts impressive mechanical properties alongside moderate corrosion resistance. Renowned for their exceptional fatigue strength, hardness, and dimensional stability, 17-7 PH Bars find their place in demanding applications across a variety of industries. Harsh Metalloys offers these bars in multiple shapes, including round, square, and hex, all meticulously engineered to comply with international standards. They’re perfect for critical environments in aerospace, petrochemical, marine, and chemical processing.
Stainless Steel 17-7 PH Bars are made up of 17% chromium and 7% nickel, with aluminum added (0.75–1.5%) to facilitate precipitation hardening. These bars deliver impressive tensile strength of up to 1380 MPa and yield strength of at least 1170 MPa, along with outstanding hardness and fatigue resistance, especially when heat-treated to conditions like TH1050 and RH950. The alloy retains excellent strength and stability even at high temperatures, while providing corrosion resistance similar to that of 304 stainless steel. Its unique blend of formability, high mechanical strength, and consistent dimensional stability makes it an ideal choice for structural and dynamic load applications in tough operating environments.
| Grade | C | P | Si | Ni | Cu | Fe | Mn | S | Cr | AL |
| SS 17-7 PH | .09 | .04 | 1.0 max | 6.50 – 7.75 | – | Bal | 1.0 max | 0.04 | 16.0 – 18.0 | .75 – 1.50 |
Properties | Metric | Imperial |
|---|---|---|
Tensile strength | 1170 MPa | 170000 psi |
Yield strength | 965 MPa | 140000 psi |
Modulus of elasticity | 204 GPa | 29600 ksi |
Poisson’s ratio | 0.27-0.30 | 0.27-0.30 |
Elongation at break | 6% | 6% |
Hardness, Rockwell C | 38 | 38 |
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We ensures the highest quality for its stainless steel 17-7 pH bars through rigorous testing and certification. Each product undergoes a thorough evaluation, including tensile strength, corrosion resistance and hardness testing. Our breweries are certified by renowned industry standards, ensuring high performance and reliability in challenging applications.
17-7 PH round bars offer high strength and excellent fatigue resistance, ideal for aerospace, automotive, and industrial applications, providing durability and reliability in demanding conditions.
17-7 PH flat bars are known for their superior strength and fatigue resistance, suitable for aerospace and industrial components, offering excellent performance under high stress and temperature conditions.
17-7 PH square bars deliver high strength and stability, ideal for aerospace, automotive, and industrial applications, ensuring durability and performance in environments requiring resilience and reliability.
17-7 PH rectangular bars provide robust strength and fatigue resistance, used in aerospace and industrial applications where high performance and durability are essential, even under extreme conditions.
17-7 PH hexagonal bars offer excellent strength and fatigue resistance, perfect for aerospace and industrial uses, ensuring reliable performance and durability in high-stress and temperature environments.
17-7 PH T-bars provide high strength and corrosion resistance, suitable for structural support and critical aerospace components, ensuring durability and performance under challenging conditions.
Stainless Steel 17-7 PH Bars are a go-to choice in various industries, including aerospace, chemical processing, marine equipment, pressure vessels, and even nuclear reactors, where high strength and fatigue resistance are crucial. You’ll also find them in springs, bellows, diaphragms, valves, fasteners, and actuators, particularly in situations where top-notch performance and long-lasting precision are key. These bars excel in environments that experience thermal cycling and dynamic loads. Thanks to their excellent machinability and heat-treatable features, 17-7 PH Bars meet standards like ASTM A564 and AMS 5644, making them a dependable option for tough industrial and mechanical engineering tasks.
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