AMS 5629 (13/8 PH VAR)


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AMS 5629  (13/8  PH VAR) - 1

AMS 5629 (13/8 PH VAR) DATA SHEET PRECIPITATION HARDENING STAINLESS STEEL BARTYPICAL APPLICATIONS Round Bar Ideal for applications where very high strength and toughness are required. This alloy is also used when good general / stress corrosion cracking resistance and minimal property directionality are needed. Applications include aircraft structural parts, landing gear components, shafts, valves, fittings and fasteners. Also used for components in the petrochemical industry. CUT TO SIZE SAWN BLANKS Cut to length in house to tolerances - Nil + 1.0mm PRODUCT DESCRIPTION 13/8 PH VAR is in a family of martensitic precipitation hardening stainless steel along with 17/4 PH and 15/5 PH. It is produced as a consumable electrode, vacuum arc remelted product offering excellent transverse toughness and ductility even in large section. High strength is developed by a simple low-temperature heat treatment. The various 'H' conditions in the table below indicate the property combination achieved by heat treatment at the temperature shown in degrees F. Due to the chemical composition and controlled melting practise, 13/8 VAR has an essentially ferrite-free microstructure. This material has a typical density of 7.8kg/dm3. MACHINABILITY Average cutting speed 80ft/min. 35-40% average (based on 100% for AISI 1212 steel). Similar to 17/4 PH. CORROSION RESISTANCE Superior to straight chromium grades like 410, approaching corrosion resistance of the chromium nickel grades. In many corrosive media it is equal to such grades as 302. Corrosion resisting properties will be affected by surface finish and aging heat treatment. Excellent. Readily weldable by all commercial processes. RELATED SPECIFICATIONS ASTM SA-564 Type XM - 13 UNS S13800 WELDABILITYPRODUCTION TOLERANCES Manufacturing limits are as stated in the Table AMS 2241. For further assistance please contact our Sales Dept / Laboratory. TECHNICAL SALES ASSISTANCE Our resident team of qualified metallurgists and engineers will be pleased to assist further on any technical topic. Smiths Advanced Metals Stratton Business Park, London Road, Biggleswade, Bedfordshire SG18 8QB United Kingdom Tel: +44 (0) 1767 604 710 Fax: +44 (0) 1767 315 340 Email: Website: All information in this data sheet is based on approximate testing and is stated to the best of our knowledge and belief. It is presented apart from contractual obligations and does not constitute any guarantee of properties or of processing or application possibilities in individual cases. Our warranties & liabilities are stated exclusively in our terms of trading. © Smiths Advanced Metals 2014

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