{"product_id":"17-7-ph","title":"17-7 PH","description":"\u003cp data-start=\"0\" data-end=\"433\"\u003e\u003cstrong data-start=\"0\" data-end=\"27\"\u003e17-7 PH Stainless Steel\u003c\/strong\u003e (also known as \u003cstrong data-start=\"43\" data-end=\"57\"\u003eUNS S17700\u003c\/strong\u003e or \u003cstrong data-start=\"61\" data-end=\"89\"\u003eType 631 stainless steel\u003c\/strong\u003e) is a precipitation-hardening stainless steel designed to provide an exceptional combination of \u003cstrong data-start=\"186\" data-end=\"297\"\u003ehigh strength, good corrosion resistance, excellent fatigue properties, and superior spring characteristics\u003c\/strong\u003e. It is widely used in aerospace, defense, industrial, and spring applications where high strength and elastic performance are required.\u003c\/p\u003e\n\u003ch3 data-section-id=\"12c7rhb\" data-start=\"435\" data-end=\"458\"\u003eKey Characteristics\u003c\/h3\u003e\n\u003cul data-start=\"459\" data-end=\"1098\"\u003e\n\u003cli data-section-id=\"1q4wzqv\" data-start=\"459\" data-end=\"576\"\u003e\n\u003cstrong data-start=\"461\" data-end=\"484\"\u003eVery High Strength:\u003c\/strong\u003e Achieves high tensile and yield strengths through cold working and precipitation hardening.\u003c\/li\u003e\n\u003cli data-section-id=\"1pzbzsl\" data-start=\"577\" data-end=\"671\"\u003e\n\u003cstrong data-start=\"579\" data-end=\"611\"\u003eExcellent Spring Properties:\u003c\/strong\u003e Maintains elasticity and resilience under repeated loading.\u003c\/li\u003e\n\u003cli data-section-id=\"1v8o8r\" data-start=\"672\" data-end=\"790\"\u003e\n\u003cstrong data-start=\"674\" data-end=\"704\"\u003eGood Corrosion Resistance:\u003c\/strong\u003e Comparable to 304 stainless steel in many atmospheric and mild chemical environments.\u003c\/li\u003e\n\u003cli data-section-id=\"phat0x\" data-start=\"791\" data-end=\"872\"\u003e\n\u003cstrong data-start=\"793\" data-end=\"826\"\u003eExcellent Fatigue Resistance:\u003c\/strong\u003e Performs well in cyclic loading applications.\u003c\/li\u003e\n\u003cli data-section-id=\"1kqmzg6\" data-start=\"873\" data-end=\"987\"\u003e\n\u003cstrong data-start=\"875\" data-end=\"896\"\u003eGood Formability:\u003c\/strong\u003e Can be formed in the annealed condition and then heat treated to develop final properties.\u003c\/li\u003e\n\u003cli data-section-id=\"fwt2f6\" data-start=\"988\" data-end=\"1098\"\u003e\n\u003cstrong data-start=\"990\" data-end=\"1009\"\u003eHeat Treatable:\u003c\/strong\u003e Mechanical properties can be tailored through various conditioning and aging treatments.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"1j9hvts\" data-start=\"1100\" data-end=\"1132\"\u003eTypical Chemical Composition\u003c\/h3\u003e\n\u003cul data-start=\"1133\" data-end=\"1360\"\u003e\n\u003cli data-section-id=\"1xwd11s\" data-start=\"1133\" data-end=\"1156\"\u003eChromium (Cr): 16–18%\u003c\/li\u003e\n\u003cli data-section-id=\"9c6m0i\" data-start=\"1157\" data-end=\"1181\"\u003eNickel (Ni): 6.5–7.75%\u003c\/li\u003e\n\u003cli data-section-id=\"dtscf8\" data-start=\"1182\" data-end=\"1209\"\u003eAluminum (Al): 0.75–1.50%\u003c\/li\u003e\n\u003cli data-section-id=\"io6en9\" data-start=\"1210\" data-end=\"1233\"\u003eCarbon (C): Max 0.09%\u003c\/li\u003e\n\u003cli data-section-id=\"9lkr8n\" data-start=\"1234\" data-end=\"1261\"\u003eManganese (Mn): Max 1.00%\u003c\/li\u003e\n\u003cli data-section-id=\"pyp5dm\" data-start=\"1262\" data-end=\"1287\"\u003eSilicon (Si): Max 1.00%\u003c\/li\u003e\n\u003cli data-section-id=\"13bibhr\" data-start=\"1288\" data-end=\"1315\"\u003ePhosphorus (P): Max 0.04%\u003c\/li\u003e\n\u003cli data-section-id=\"16btgx3\" data-start=\"1316\" data-end=\"1339\"\u003eSulfur (S): Max 0.03%\u003c\/li\u003e\n\u003cli data-section-id=\"p2b8lo\" data-start=\"1340\" data-end=\"1360\"\u003eIron (Fe): Balance\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"20r5dj\" data-start=\"1362\" data-end=\"1398\"\u003eCommon Heat Treatment Conditions\u003c\/h3\u003e\n\u003cdiv class=\"TyagGW_tableContainer\"\u003e\n\u003cdiv class=\"group TyagGW_tableWrapper flex flex-col-reverse w-fit\" tabindex=\"-1\"\u003e\n\u003ctable data-start=\"1399\" data-end=\"1719\" class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead data-start=\"1399\" data-end=\"1430\"\u003e\n\u003ctr data-start=\"1399\" data-end=\"1430\"\u003e\n\u003cth data-start=\"1399\" data-end=\"1411\" data-col-size=\"sm\" class=\"last:pe-10\"\u003eCondition\u003c\/th\u003e\n\u003cth data-start=\"1411\" data-end=\"1430\" data-col-size=\"md\" class=\"last:pe-10\"\u003eTypical Feature\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody data-start=\"1463\" data-end=\"1719\"\u003e\n\u003ctr data-start=\"1463\" data-end=\"1520\"\u003e\n\u003ctd data-start=\"1463\" data-end=\"1477\" data-col-size=\"sm\"\u003eCondition A\u003c\/td\u003e\n\u003ctd data-col-size=\"md\" data-start=\"1477\" data-end=\"1520\"\u003eSolution annealed, suitable for forming\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"1521\" data-end=\"1586\"\u003e\n\u003ctd data-start=\"1521\" data-end=\"1541\" data-col-size=\"sm\"\u003eCondition TH 1050\u003c\/td\u003e\n\u003ctd data-col-size=\"md\" data-start=\"1541\" data-end=\"1586\"\u003eHigh strength with good spring properties\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"1587\" data-end=\"1639\"\u003e\n\u003ctd data-start=\"1587\" data-end=\"1606\" data-col-size=\"sm\"\u003eCondition RH 950\u003c\/td\u003e\n\u003ctd data-col-size=\"md\" data-start=\"1606\" data-end=\"1639\"\u003eMaximum strength and hardness\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"1640\" data-end=\"1719\"\u003e\n\u003ctd data-start=\"1640\" data-end=\"1659\" data-col-size=\"sm\"\u003eCondition CH 900\u003c\/td\u003e\n\u003ctd data-col-size=\"md\" data-start=\"1659\" data-end=\"1719\"\u003eHighest strength achieved through cold working and aging\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch3 data-section-id=\"ucz99x\" data-start=\"1721\" data-end=\"1745\"\u003eTypical Applications\u003c\/h3\u003e\n\u003cul data-start=\"1746\" data-end=\"1986\"\u003e\n\u003cli data-section-id=\"1an0epu\" data-start=\"1746\" data-end=\"1780\"\u003eAerospace springs and diaphragms\u003c\/li\u003e\n\u003cli data-section-id=\"x9aj81\" data-start=\"1781\" data-end=\"1813\"\u003eAircraft structural components\u003c\/li\u003e\n\u003cli data-section-id=\"1sasepz\" data-start=\"1814\" data-end=\"1833\"\u003eBellows and seals\u003c\/li\u003e\n\u003cli data-section-id=\"1nzq1q0\" data-start=\"1834\" data-end=\"1873\"\u003ePrecision washers and retaining rings\u003c\/li\u003e\n\u003cli data-section-id=\"gby44j\" data-start=\"1874\" data-end=\"1904\"\u003eIndustrial springs and clips\u003c\/li\u003e\n\u003cli data-section-id=\"1spbyzv\" data-start=\"1905\" data-end=\"1925\"\u003eFlexible couplings\u003c\/li\u003e\n\u003cli data-section-id=\"ymjt6t\" data-start=\"1926\" data-end=\"1947\"\u003eMedical instruments\u003c\/li\u003e\n\u003cli data-section-id=\"104kalo\" data-start=\"1948\" data-end=\"1986\"\u003eHigh-strength sheet metal components\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"1l3n95q\" data-start=\"1988\" data-end=\"2002\"\u003eAdvantages\u003c\/h3\u003e\n\u003cp data-start=\"2003\" data-end=\"2244\"\u003e✓ Excellent strength-to-weight ratio\u003cbr data-start=\"2039\" data-end=\"2042\"\u003e✓ Outstanding spring and elastic properties\u003cbr data-start=\"2085\" data-end=\"2088\"\u003e✓ High fatigue resistance\u003cbr data-start=\"2113\" data-end=\"2116\"\u003e✓ Good corrosion resistance\u003cbr data-start=\"2143\" data-end=\"2146\"\u003e✓ Heat treatable for a range of mechanical properties\u003cbr data-start=\"2199\" data-end=\"2202\"\u003e✓ Suitable for precision formed components\u003c\/p\u003e\n\u003ch3 data-section-id=\"chrobh\" data-start=\"2246\" data-end=\"2261\"\u003eLimitations\u003c\/h3\u003e\n\u003cul data-start=\"2262\" data-end=\"2595\"\u003e\n\u003cli data-section-id=\"1e676gh\" data-start=\"2262\" data-end=\"2330\"\u003eMore difficult to machine than many conventional stainless steels.\u003c\/li\u003e\n\u003cli data-section-id=\"12986nl\" data-start=\"2331\" data-end=\"2421\"\u003eGenerally supplied as sheet, strip, and plate rather than heavy bar or forging products.\u003c\/li\u003e\n\u003cli data-section-id=\"1i61yd1\" data-start=\"2422\" data-end=\"2516\"\u003eCorrosion resistance is lower than 316 stainless steel in highly chloride-rich environments.\u003c\/li\u003e\n\u003cli data-section-id=\"1u0maqs\" data-start=\"2517\" data-end=\"2595\"\u003eWelding may require additional heat treatment to restore optimum properties.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"1350gg2\" data-start=\"2597\" data-end=\"2649\"\u003eTypical Mechanical Properties (RH 950 Condition)\u003c\/h3\u003e\n\u003cul data-start=\"2650\" data-end=\"2792\"\u003e\n\u003cli data-section-id=\"1rk3d2k\" data-start=\"2650\" data-end=\"2700\"\u003eTensile Strength: ~1,550–1,750 MPa (225–255 ksi)\u003c\/li\u003e\n\u003cli data-section-id=\"1xgob30\" data-start=\"2701\" data-end=\"2749\"\u003eYield Strength: ~1,380–1,590 MPa (200–230 ksi)\u003c\/li\u003e\n\u003cli data-section-id=\"1f3q1of\" data-start=\"2750\" data-end=\"2772\"\u003eHardness: ~44–49 HRC\u003c\/li\u003e\n\u003cli data-section-id=\"4tdg6b\" data-start=\"2773\" data-end=\"2792\"\u003eElongation: ~3–8%\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Zourcefy","offers":[{"title":".5mm","offer_id":57511404110206,"sku":null,"price":0.0,"currency_code":"GBP","in_stock":true},{"title":"1.00","offer_id":57511404142974,"sku":null,"price":0.0,"currency_code":"GBP","in_stock":true},{"title":"2.00","offer_id":57511404175742,"sku":null,"price":0.0,"currency_code":"GBP","in_stock":true},{"title":"3.00","offer_id":57511404208510,"sku":null,"price":0.0,"currency_code":"GBP","in_stock":true},{"title":"4.00","offer_id":57511404241278,"sku":null,"price":0.0,"currency_code":"GBP","in_stock":true},{"title":"5.00","offer_id":57511404274046,"sku":null,"price":0.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0987\/6140\/8894\/files\/17-7-ph-billet-with-light-black-back-ground-with-1-1-ratio.png?v=1780595273","url":"https:\/\/zourcefy.com\/products\/17-7-ph","provider":"Zourcefy","version":"1.0","type":"link"}