Hardness and impact energy absorbed produced by Q&T steel and DQ&T teel | Zendy

Yurianto | Zendy; Pratikto | Zendy; S. L. Rudy | Zendy; S. Wahyono | Zendy; Y Eflita | Zendy; Suhartono H Agus | Zendy; U.S. Yusuf | Zendy

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Hardness and impact energy absorbed produced by Q&T steel and DQ&T teel

Author(s) -

Yurianto,

Pratikto,

S. L. Rudy,

S. Wahyono,

Y Eflita,

Suhartono H Agus,

U.S. Yusuf

Publication year - 2019

Publication title -

iop conference series materials science and engineering

Language(s) - English

Resource type - Journals

eISSN - 1757-899X

pISSN - 1757-8981

DOI - 10.1088/1757-899x/602/1/012087

Subject(s) - metallurgy , materials science , microstructure

Hot rolled plate steel is heat treatable steel made in Indonesia for commercially developed to Quenched and Tempered Steel. This steels made by PT. Krakatau Steel (Persero) Cilegon, Banten, Indonesia. The aim of this study to improve the hardness and energy impact through heat treatment of double quench + temper. The method used is heating up to 900°C (maintained for 30 minutes and cooled by water) for fives specimen hot rolled plate steel and produce the quenched 900 steel (Q 900 Steel). Four Q 900 steel specimens were heated at 750°C, 800°C, 850°C, and 900°C (maintained for 30 minutes) each. Then five specimens (include Q 900 Steel) are tempered at 150°C (maintained for 30 minutes) and produced Q 900 & T Steel, Q 900+750 & T Steel, Q 900+800 & T Steel, Q 900+850 & T Steel, Q 900+900 & T Steel. Results of the study were changes in microstructure, hardness and impact energy. Hardness and impact energy absorbed of Q 900+750 &T Steel higher than Q 900 &T Steel.

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