Stainless Steel 17-7 PH Pipe Fittings are precision-engineered fittings used in applications where high strength, excellent fatigue life, and moderate corrosion resistance are needed. Supplied by trusted manufacturers such as Devang Fittings in Kolkata, India, these fittings are suitable for aerospace, chemical, and marine applications where long-term service, dimensional stability, and mechanical strength are essential. Being a precipitation-hardened stainless steel, 17-7 PH offers the corrosion resistance of stainless steel with the superior mechanical properties of heat-treated alloys.
| Grade | Properties | Imperial |
|---|---|---|
| 17-7 PH | Density | 7.80 g/cm3 |
| Tensile strength | 170000 psi | |
| Yield strength | 140000 psi | |
| Modulus of elasticity | 29600 ksi |
17-7 PH stainless steel is an alloy of nickel, chromium, and aluminum with a composition of around 17% chromium, 7% nickel, with the addition of aluminum for the purposes of precipitation hardening. It has extremely high tensile strength (up to 1310 MPa following heat treatment) and respectable yield strength, with moderate corrosion resistance and excellent formability in the annealed condition. The alloy may be strengthened by aging treatments to obtain enhanced mechanical properties specific to the application at hand.
| 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 | 17-7 PH |
|---|---|
| Density, lb/in3 | 0.282 |
| Modulus of Elasticity, psi | 29 x 106 |
| Coefficient of Thermal Expansion, 68-212˚F, /˚F | 8.5 x 10-6 |
| Thermal Conductivity, Btu/ft hr ˚F | 9.5 |
| Specific Heat, Btu/lb ˚F | 0.11 |
| Electrical Resistivity, Microohm-in | 31.5 |
Devang Fittings one of the largest suppliers of Stainless Steel 17-7 PH Pipe Fittings in Kolkata, India. We specialize in providing a wide range of high-quality, durable fittings for various industrial applications. Our inventory includes elbows, tees, reducers, couplings, and other essential fittings designed to offer exceptional corrosion resistance and strength. Stainless Steel 17-7 PH is known for its cost-effectiveness and excellent mechanical properties, making it ideal for industries such as construction, chemical processing, and food processing. With a commitment to customer satisfaction, timely delivery, and competitive pricing, we are the trusted choice for Stainless Steel 17-7 PH Pipe Fittings in the India.
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 17-7 PH Pipe Fittings from Devang Fittings offer exceptional corrosion resistance, especially in seawater and harsh environments. They are known for their high strength, durability, and resistance to pitting and crevice corrosion, ensuring long-lasting performance. We provide precise manufacturing, quality control, and reliable service for diverse industrial applications.
Yes, custom sizes are available for Stainless Steel 17-7 PH Pipe Fittings to meet specific requirements. We offer tailored solutions to ensure precise fit and performance for various applications. For more information, please contact us at sales@devangfittings.co.in.
| 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 |
| Properties | Metric | Imperial |
|---|---|---|
| Thermal conductivity | 16.4 W/mK | 114 BTU in/hr.ft2.°F |
| Thermal expansion co-efficient (@0.000-100°C/32-212°F) | 11 µm/m°C | 6.11 µm/m°C |
Stainless Steel 17-7 PH Pipe Fittings find application in aerospace structures, chemical tanks, reactor vessels, springs, pressure piping, and marine hardware where high strength-to-weight ratio and predictable mechanical properties are needed. Due to their resistance to retaining strength and dimensional stability over a wide temperature range, they find applications in structural as well as pressure-bearing conditions. Such fittings provide a reliable, long-lasting option in operating conditions that require strength, reliability, and resistance to fatigue and stress corrosion cracking.
Get in touch with one of our Technical Sales Representatives to request a quote or get answers to any questions you may have.
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