Known for providing high-performance stainless steel solutions to a range of industries, Vinit Stainless is a top manufacturer and supplier of stainless steel 17-7 PH bars in Chennai, India. Vinit Stainless provides high-quality bars that satisfy global standards for strength, durability, and corrosion resistance thanks to years of experience and sophisticated manufacturing capabilities. Their 17-7 PH bars are expertly designed to meet the needs of demanding chemical processing, aerospace, and defence applications. Vinit Stainless has established itself as a dependable partner for stainless steel products in both domestic and international markets thanks to its strict quality control and customer-focused service.
Stainless steel 17-7 PH bars are precipitation-hardened chromium-nickel-aluminum alloys that contain 0.75–1.5 percent aluminium for hardening and roughly 17% chromium and 7% nickel. With a tensile strength of up to 1240 MPa and a yield strength of over 1000 MPa under heat-treated conditions, this steel has exceptional mechanical qualities. Additionally, it offers moderate corrosion resistance and good fatigue strength. At high temperatures, the alloy retains its high strength and dimensional stability. For improved performance, 17-7 PH can be formed in the annealed state and then hardened by heat treatment.
| 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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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.
Applications needing high strength, corrosion resistance, and dependable performance under stress frequently use stainless steel 17-7 PH bars. Because of their high fatigue strength and heat resistance, they are frequently used in aerospace components like springs, diaphragms, and fasteners. Additionally, the alloy is used in nuclear reactor components, automobile parts, and equipment used in chemical processing. It is appropriate for precision instruments and structural components in the maritime and defence industries due to its exceptional formability and heat-treatability. 17-7 PH bars are extremely adaptable in a variety of demanding engineering settings because they provide the perfect balance of strength, toughness, and oxidation resistance.
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