Analisa surface defect pada baja slab (Studi kasus di slab steel plant PT. Krakatau Steel-Cilegon)

N.H. Sari, I.W. Yatra

Abstract


The purpose of this case study is to analyze the surface defects that occur in slab steel. Investigations and observations have been made on slab steel. Surface defects that were investigated were obtained based on survey data in slab handling. The results show that frequent surface defects are transverse crack, corner transverse crack, corner crack, longitudinal crack, porous / blow hole, and oscillation mark. Further, the type of surface defect that often occurs in steel slab is the type of corner crack. It is due to sulfur and phosphorus content on the slab steel grade are higher.


Keywords


Surface defect; Slab steel; Slab handling; Sulfur and phosphorus

Full Text:

PDF

References


Askar S., Sinarep, Sari N.H., 2013, Pengaruh preheat dan tempering terhadap kekerasan dan strukturmikro hasil pengelasan baja JIS SS 400, Dinamika Teknik Mesin, 3(1), 16-25.

Handayani U.N., Prastawa H., Nuryanti, 2007, Analisis faktor-faktor yang berpengaruh terhadap cacat dalam pada produk slab baja (Studi kasus di slab steel Plant-2 PT. Krakatau Steel), J@TI Undip, II(2).

Ji X.C., Cui Y., Zeng Z., Tian H.Z., Zhao L.C., Zhu S.G., 2015, Continuous casting of high-al steel in Shougang Jingtang Steel Works, 22, Supplement 1, 53-56.

Sari N.H., 2017, Perlakuan panas pada baja karbon rendah; Efek media pendinginan terhadap sifat mekanik dan struktur mikro, Jurnal Teknik Mesin (JTM), 06(4), 263–267.

Sari N.H., 2018, Material teknik, Edisi 1, Deepublish, Yogyakarta.

Zhang Q.Y., Wang L.T., Wang X.H., Wang W.J., 2008, Non-metallic inclusion distribution in surface layer of IF steel slabs, Journal of Iron and Steel Research, International, 15(1), 70-74.

Zhang B., Xue Z.L., Liao Z., Wang S.D., Zheng H.W., Zhou J.F., 2014, Analysis on surface longitudinal cracking of Q345D slab, 21, Supplement 1, 108-112.




DOI: https://doi.org/10.29303/dtm.v9i1.241

Refbacks

  • There are currently no refbacks.


Copyright (c) 2018 Dinamika Teknik Mesin

Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.