Available online at www.sciencedirect.com ScienceDirect Materials Today: Proceedings 13 (2019) 121–126 www.materialstoday.com/proceedings 2214-7853 © 2019 Elsevier Ltd. All rights reserved. Peer-review under responsibility of the scientific committee of The 6th International Conference on Advanced Materials Science and Technology 2018, 6th ICAMST. ICAMST 2018 Comparison of Strength, Microstructure and Corrosion Resistance of Stainless Steels Type 410 and Type 410-3Mo in Tempered Condition Efendi Mabruri a,* , Sujianto b , Moch. Syaiful Anwar a , Toni Bambang Romijarso a , Bintang Adjiantoro a , Dewa Nyoman Adnyana c a Research Center for Metallurgy and Materials, Indonesian Institute of Sciences (LIPI), Kawasan Puspiptek Gd. 470 Serpong, Indonesia b Mechanical Engineering Department, Faculty of Engineering, University of Pamulang,Tangerang Selatan, Indonesia c Mechanical Engineering Department, Faculty of Industrial Technology, National Institute of Science and Technology (ISTN), Jakarta, Indonesia Abstract In the present work, the strength and the corrosion resistance of the martensitic stainless steels type 410 and type 410-3Mo were evaluated, particularly in relation with tempering temperature and time. The results showed that the modified steel 410-3Mo had higher tensile strength compared to standard steel 410 after tempering at temperature 600-700 o C. The difference of the two microstructures is apparently visible in the size and fraction of delta ferrite and the sizes of martensite lath and of carbides as well. With respect to corrosion behavior, the Mo in 410-3Mo steel may increase the corrosion resistance of the steel. © 2019 Elsevier Ltd. All rights reserved. Peer-review under responsibility of the scientific committee of The 6th International Conference on Advanced Materials Science and Technology 2018, 6th ICAMST. Keywords: 410 steel; 410-3Mo steel; tempering; tensile strength; corrosion resistance 1. Introduction The failures of the steam turbine blades are frequently encountered due to the combination of severe environment and high loading during services. Pitting, stress corrosion cracking and corrosion fatigue are the most responsible mechanisms for the failure of the blades [1-2]. In addition, pitting is acting as an initiation site of the other two * Corresponding author. Tel.: +62-21-7560911; fax: +62-21-7560553. E-mail address: effendi.3@lipi.go.id