Heer Fittings manufactures Stainless Steel 17-7 PH Pipe Fittings in Delhi, India, which are used in structural and high-strength piping applications where corrosion resistance along with the ability to function reliably under mechanical stress is necessary. These fittings in the form of elbows, tees, reducers, caps, and crosses are manufactured as per standards including ASTM A403 and ASME B16.9. 17-7 PH is precipitation-hardened stainless steel characterized by its high strength, formability, and moderate corrosion resistance that makes it ideal for usage in aerospace, petrochemical, and process equipment applications.
| Grade | Properties | Imperial |
|---|---|---|
| 17-7 PH | Density | 7.80 g/cm3 |
| Tensile strength | 170000 psi | |
| Yield strength | 140000 psi | |
| Modulus of elasticity | 29600 ksi |
Stainless Steel 17-7 PH (UNS S17700) is an austenitic-martensitic precipitation-hardening alloy with the usual composition of 17% chromium, 7% nickel, 1% aluminum, and traces of carbon and manganese. Following heat treatment (RH 950 or CH 900 conditions), it can develop tensile strength of up to ~1240 MPa, yield strength of approximately ~1100 MPa, and elongation 6–10%. The alloy possesses high mechanical properties at high temperatures and shows good fatigue and oxidation resistance, although its corrosion resistance is lower than that of 304 or 316 stainless steel.
| 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 |
Heer Fittings one of the largest suppliers of Stainless Steel 17-7 PH Pipe Fittings in Delhi, 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 Heer 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@heerfittings.com.
| 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 |
17-7 PH Pipe Fittings are applied in spring-loaded equipment, aerospace hydraulic tubing, processing nuclear waste, chemical processing plant equipment, and petroleum refining. They are selected for pressurized or high-load piping systems that need dimensional stability, close tolerances, and long-term strength. These fittings are also utilized in applications where both excellent formability in the annealed state and high strength after heat treatment are essential, especially in weight- and space-saving or weight-conscious designs.
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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