{"product_id":"17-4-ph","title":"17-4 PH","description":"\u003cp data-start=\"0\" data-end=\"393\"\u003e\u003cstrong data-start=\"0\" data-end=\"27\"\u003e17-4 PH Stainless Steel\u003c\/strong\u003e (also known as \u003cstrong data-start=\"43\" data-end=\"57\"\u003eUNS S17400\u003c\/strong\u003e or \u003cstrong data-start=\"61\" data-end=\"89\"\u003eType 630 stainless steel\u003c\/strong\u003e) is a precipitation-hardening martensitic stainless steel that combines \u003cstrong data-start=\"162\" data-end=\"243\"\u003ehigh strength, good corrosion resistance, and excellent mechanical properties\u003c\/strong\u003e. It is one of the most widely used high-strength stainless steels in aerospace, defense, oil \u0026amp; gas, chemical processing, and industrial applications.\u003c\/p\u003e\n\u003ch3 data-section-id=\"12c7rhb\" data-start=\"395\" data-end=\"418\"\u003eKey Characteristics\u003c\/h3\u003e\n\u003cul data-start=\"419\" data-end=\"972\"\u003e\n\u003cli data-section-id=\"iuvq43\" data-start=\"419\" data-end=\"513\"\u003e\n\u003cstrong data-start=\"421\" data-end=\"439\"\u003eHigh Strength:\u003c\/strong\u003e Can achieve very high tensile and yield strengths through heat treatment.\u003c\/li\u003e\n\u003cli data-section-id=\"1qiazsf\" data-start=\"514\" data-end=\"646\"\u003e\n\u003cstrong data-start=\"516\" data-end=\"541\"\u003eCorrosion Resistance:\u003c\/strong\u003e Comparable to 304 stainless steel in many environments and better than most standard martensitic grades.\u003c\/li\u003e\n\u003cli data-section-id=\"1cyufuq\" data-start=\"647\" data-end=\"770\"\u003e\n\u003cstrong data-start=\"649\" data-end=\"668\"\u003eHeat Treatable:\u003c\/strong\u003e Mechanical properties can be tailored through aging treatments (e.g., H900, H1025, H1150 conditions).\u003c\/li\u003e\n\u003cli data-section-id=\"1jyjp1j\" data-start=\"771\" data-end=\"864\"\u003e\n\u003cstrong data-start=\"773\" data-end=\"792\"\u003eGood Toughness:\u003c\/strong\u003e Maintains useful toughness and ductility while providing high strength.\u003c\/li\u003e\n\u003cli data-section-id=\"1t2pxfc\" data-start=\"865\" data-end=\"972\"\u003e\n\u003cstrong data-start=\"867\" data-end=\"890\"\u003eGood Fabricability:\u003c\/strong\u003e Can be machined and welded in the solution-annealed condition before final aging.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"1j9hvts\" data-start=\"974\" data-end=\"1006\"\u003eTypical Chemical Composition\u003c\/h3\u003e\n\u003cul data-start=\"1007\" data-end=\"1157\"\u003e\n\u003cli data-section-id=\"1korao7\" data-start=\"1007\" data-end=\"1032\"\u003eChromium (Cr): 15–17.5%\u003c\/li\u003e\n\u003cli data-section-id=\"18c08n6\" data-start=\"1033\" data-end=\"1052\"\u003eNickel (Ni): 3–5%\u003c\/li\u003e\n\u003cli data-section-id=\"8dn3se\" data-start=\"1053\" data-end=\"1072\"\u003eCopper (Cu): 3–5%\u003c\/li\u003e\n\u003cli data-section-id=\"13d808t\" data-start=\"1073\" data-end=\"1112\"\u003eNiobium\/Columbium (Nb\/Cb): 0.15–0.45%\u003c\/li\u003e\n\u003cli data-section-id=\"io6ezv\" data-start=\"1113\" data-end=\"1136\"\u003eCarbon (C): Max 0.07%\u003c\/li\u003e\n\u003cli data-section-id=\"p2b8lo\" data-start=\"1137\" data-end=\"1157\"\u003eIron (Fe): Balance\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"20r5dj\" data-start=\"1159\" data-end=\"1195\"\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=\"1196\" data-end=\"1444\" class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead data-start=\"1196\" data-end=\"1227\"\u003e\n\u003ctr data-start=\"1196\" data-end=\"1227\"\u003e\n\u003cth data-start=\"1196\" data-end=\"1208\" data-col-size=\"sm\" class=\"last:pe-10\"\u003eCondition\u003c\/th\u003e\n\u003cth data-start=\"1208\" data-end=\"1227\" 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=\"1260\" data-end=\"1444\"\u003e\n\u003ctr data-start=\"1260\" data-end=\"1300\"\u003e\n\u003ctd data-start=\"1260\" data-end=\"1267\" data-col-size=\"sm\"\u003eH900\u003c\/td\u003e\n\u003ctd data-start=\"1267\" data-end=\"1300\" data-col-size=\"md\"\u003eMaximum strength and hardness\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"1301\" data-end=\"1351\"\u003e\n\u003ctd data-start=\"1301\" data-end=\"1309\" data-col-size=\"sm\"\u003eH1025\u003c\/td\u003e\n\u003ctd data-col-size=\"md\" data-start=\"1309\" data-end=\"1351\"\u003eGood balance of strength and toughness\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"1352\" data-end=\"1382\"\u003e\n\u003ctd data-start=\"1352\" data-end=\"1360\" data-col-size=\"sm\"\u003eH1075\u003c\/td\u003e\n\u003ctd data-col-size=\"md\" data-start=\"1360\" data-end=\"1382\"\u003eImproved toughness\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"1383\" data-end=\"1444\"\u003e\n\u003ctd data-start=\"1383\" data-end=\"1391\" data-col-size=\"sm\"\u003eH1150\u003c\/td\u003e\n\u003ctd data-col-size=\"md\" data-start=\"1391\" data-end=\"1444\"\u003eHighest toughness and stress-corrosion resistance\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=\"1446\" data-end=\"1470\"\u003eTypical Applications\u003c\/h3\u003e\n\u003cul data-start=\"1471\" data-end=\"1718\"\u003e\n\u003cli data-section-id=\"13i38xg\" data-start=\"1471\" data-end=\"1504\"\u003eAerospace structural components\u003c\/li\u003e\n\u003cli data-section-id=\"dqup9x\" data-start=\"1505\" data-end=\"1547\"\u003eAircraft fittings and landing gear parts\u003c\/li\u003e\n\u003cli data-section-id=\"mqem7s\" data-start=\"1548\" data-end=\"1579\"\u003eDefense and military hardware\u003c\/li\u003e\n\u003cli data-section-id=\"17nmde7\" data-start=\"1580\" data-end=\"1607\"\u003ePump and valve components\u003c\/li\u003e\n\u003cli data-section-id=\"17dmaxn\" data-start=\"1608\" data-end=\"1629\"\u003eOil \u0026amp; gas equipment\u003c\/li\u003e\n\u003cli data-section-id=\"1m1b9nw\" data-start=\"1630\" data-end=\"1659\"\u003eNuclear industry components\u003c\/li\u003e\n\u003cli data-section-id=\"1p7szo5\" data-start=\"1660\" data-end=\"1690\"\u003eFasteners, shafts, and gears\u003c\/li\u003e\n\u003cli data-section-id=\"sen897\" data-start=\"1691\" data-end=\"1718\"\u003eFood processing equipment\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"1l3n95q\" data-start=\"1720\" data-end=\"1734\"\u003eAdvantages\u003c\/h3\u003e\n\u003cp data-start=\"1735\" data-end=\"1946\"\u003e✓ High strength-to-weight ratio\u003cbr data-start=\"1766\" data-end=\"1769\"\u003e✓ Good corrosion resistance\u003cbr data-start=\"1796\" data-end=\"1799\"\u003e✓ Excellent fatigue resistance\u003cbr data-start=\"1829\" data-end=\"1832\"\u003e✓ Heat treatable to multiple strength levels\u003cbr data-start=\"1876\" data-end=\"1879\"\u003e✓ Readily available in bar, plate, sheet, forging, and billet forms\u003c\/p\u003e\n\u003ch3 data-section-id=\"chrobh\" data-start=\"1948\" data-end=\"1963\"\u003eLimitations\u003c\/h3\u003e\n\u003cul data-start=\"1964\" data-end=\"2222\"\u003e\n\u003cli data-section-id=\"4c68uf\" data-start=\"1964\" data-end=\"2074\"\u003eCorrosion resistance is generally lower than 316 stainless steel in highly aggressive chloride environments.\u003c\/li\u003e\n\u003cli data-section-id=\"ghwg88\" data-start=\"2075\" data-end=\"2147\"\u003eToughness decreases in the highest-strength conditions (such as H900).\u003c\/li\u003e\n\u003cli data-section-id=\"gexk61\" data-start=\"2148\" data-end=\"2222\"\u003eNot recommended for prolonged service above approximately 315°C (600°F).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"12wxjcl\" data-start=\"2224\" data-end=\"2274\"\u003eTypical Mechanical Properties (H900 Condition)\u003c\/h3\u003e\n\u003cul data-start=\"2275\" data-end=\"2396\"\u003e\n\u003cli data-section-id=\"m7lm5a\" data-start=\"2275\" data-end=\"2315\"\u003eTensile Strength: ~1,310 MPa (190 ksi)\u003c\/li\u003e\n\u003cli data-section-id=\"6ad7ph\" data-start=\"2316\" data-end=\"2354\"\u003eYield Strength: ~1,170 MPa (170 ksi)\u003c\/li\u003e\n\u003cli data-section-id=\"o8at9y\" data-start=\"2355\" data-end=\"2377\"\u003eHardness: ~40–44 HRC\u003c\/li\u003e\n\u003cli data-section-id=\"6lk3h6\" data-start=\"2378\" data-end=\"2396\"\u003eElongation: ~10%\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"2398\" data-end=\"2646\" data-is-last-node=\"\" data-is-only-node=\"\"\u003eFor aerospace and defense procurement, 17-4 PH is often selected when a component requires significantly higher strength than 304 or 316 stainless steel while still maintaining good corrosion resistance and relatively straightforward manufacturing.\u003c\/p\u003e","brand":"Zourcefy","offers":[{"title":"Default Title","offer_id":57511045103998,"sku":null,"price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0987\/6140\/8894\/files\/image_3ea584db-57fb-401f-bf04-524fca9609f9.png?v=1780594145","url":"https:\/\/zourcefy.com\/products\/17-4-ph","provider":"Zourcefy","version":"1.0","type":"link"}