{"product_id":"harris-er630-tig-gtaw-welding-rod","title":"Harris ER630 17-4PH Stainless TIG (GTAW) Welding Rod","description":"\u003c!-- PER-186 follow-on parent body — auto-rendered 2026-05-26 --\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eHarris ER630 (17-4PH) Stainless TIG (GTAW) Welding Rod\u003c\/strong\u003e is a martensitic precipitation-hardening stainless steel GTAW rod classified to \u003cstrong\u003eAWS A5.9\/A5.9M ER630\u003c\/strong\u003e and ASME SFA 5.9. Designed primarily for welding ASTM A-564 Type 630 and other precipitation-hardening stainless steels, ER630 delivers an outstanding combination of high tensile strength, excellent corrosion resistance, and good toughness — making it ideal for aerospace, chemical processing, and high-technology industrial applications.\u003c\/p\u003e\n\n\u003cdiv class=\"per161-tldr\"\u003e\n  \u003ch2\u003eKey takeaways\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eClassification:\u003c\/strong\u003e ER630\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eAlloy class:\u003c\/strong\u003e Stainless\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePolarity:\u003c\/strong\u003e DCEN\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePositions:\u003c\/strong\u003e All positions\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eAvailable diameters:\u003c\/strong\u003e 1\/16\"\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eProcess:\u003c\/strong\u003e GTAW\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eClassification: \u003cstrong\u003eER630\u003c\/strong\u003e\n\u003c\/li\u003e\n  \u003cli\u003eAWS Classification: \u003cstrong\u003eAWS A5.9\/A5.9M ER630 (17-4PH)\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eASME SFA 5.9 ER630; AMS 5825\u003c\/li\u003e\n\u003cli\u003eAlloy type: Martensitic precipitation-hardening stainless (17% Cr, 4% Ni, 4% Cu)\u003c\/li\u003e\n\u003cli\u003ePolarity: DCEN (DC straight polarity) for GTAW\u003c\/li\u003e\n\u003cli\u003eShielding gas: 100% Argon or 98% Ar \/ 2% O₂\u003c\/li\u003e\n\u003cli\u003eTensile strength (as-welded): 160,000 psi\u003c\/li\u003e\n\u003cli\u003eYield strength (as-welded): 145,000 psi\u003c\/li\u003e\n\u003cli\u003eElongation (as-welded): 5%\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cp\u003eWelding ASTM A-564 Type 630 (17-4PH) precipitation-hardening stainless steels. Applications include aerospace components, chemical processing equipment, aircraft parts, continuous extrusion equipment, tubular structures, pressure vessels, small bellows, and diaphragm assemblies where high strength and excellent corrosion resistance are required simultaneously.\u003c\/p\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eAWS A5.9 ER630 (17-4PH)\u003c\/strong\u003e — martensitic precipitation-hardening stainless alloy\u003c\/li\u003e\n    \u003cli\u003e160,000 psi tensile strength as-welded — outstanding strength-to-weight ratio\u003c\/li\u003e\n    \u003cli\u003eGood corrosion resistance up to 600°F (316°C)\u003c\/li\u003e\n    \u003cli\u003eMore cost-effective than many high-nickel non-ferrous alloys for comparable applications\u003c\/li\u003e\n    \u003cli\u003ePost-weld heat treatment (precipitation hardening) recommended for peak mechanical properties\u003c\/li\u003e\n    \u003cli\u003eConforms to ANSI\/AWS A5.9, ASME SFA 5.9, and AMS 5825\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eMechanical Properties (Typical)\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eCondition\u003c\/th\u003e\n\u003cth\u003eTensile Strength\u003c\/th\u003e\n\u003cth\u003eYield Strength\u003c\/th\u003e\n\u003cth\u003eElongation\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\u003ctr\u003e\n\u003ctd\u003eAs-welded\u003c\/td\u003e\n\u003ctd\u003e160,000 psi\u003c\/td\u003e\n\u003ctd\u003e145,000 psi\u003c\/td\u003e\n\u003ctd\u003e5%\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eAvailable Diameters \u0026amp; Package Sizes\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n\u003cth\u003eDiameter\u003c\/th\u003e\n\u003cth\u003ePackage\u003c\/th\u003e\n\u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003e1\/16\"\u003c\/td\u003e\n\u003ctd\u003e10 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eProduct Family (Combined Listing)\u003c\/h2\u003e\n\u003cp\u003eThis Combined Listing parent page aggregates all package sizes and diameters for the Harris ER630 17-4PH Stainless TIG (GTAW) Welding Rod product family. Use the variant selector or browse individual child listings to find your specific size and packaging configuration.\u003c\/p\u003e\n","brand":"Harris","offers":[{"title":"1\/16 in · 10 lb Box","offer_id":44258828124311,"sku":"174PH30","price":233.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/7140\/4695\/files\/harris-630-er630-17-4ph-stainless-tig-gtaw-welding-rod-116-10lb-box-174ph30-harris-1.jpg?v=1746634481","url":"https:\/\/weldingmart.com\/products\/harris-er630-tig-gtaw-welding-rod","provider":"WeldingMart.com","version":"1.0","type":"link"}