Decapado del acero inoxidable AISI 316L utilizando una mezcla ecológica de H2O2-H2SO4-HF

L. Narváez; E. Cano; D. M. Bastidas; P. P. Gómez

doi:10.3989/revmetalm.2005.v41.iExtra.1067

Pickling of AISI 316L stainless steel using and ecological mixture of H₂O₂-H₂SO₄-HF

Authors

L. Narváez Instituto de Metalurgia, UASLP
E. Cano Centro Nacional de Investigaciones Metalúrgicas, CSIC
D. M. Bastidas School of Chemistry, University of St. Andrews
P. P. Gómez Centro Nacional de Investigaciones Metalúrgicas, CSIC. Madrid

DOI:

https://doi.org/10.3989/revmetalm.2005.v41.iExtra.1067

Keywords:

Pickling AISI 316L stainless steel, Hydrogen peroxide, p-Toluene sulphonic acid

Abstract

This study reports the pickling of austenitic AISI 316L stainless steel (SS) using a mixture of hydrogen peroxide (H₂O₂), sulphuric acid (H₂SO₄) and hydrofluoric acid (HF) at pH 2.0. The stability of H₂O₂ was also studied using different concentrations of ferric ion from 0 to 40 g/l and temperature from 25 to 60 °C. The pickling rate at 50 °C in the presence and absence of 40 g/l ferric ion was 2.6 and 0.2 mg/dm² day (mdd), respectively. p-Toluene sulphonic acid was used as stabilizer of H₂O₂.

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Published

2005-12-17

How to Cite

Narváez, L., Cano, E., Bastidas, D. M., & Gómez, P. P. (2005). Pickling of AISI 316L stainless steel using and ecological mixture of H2O2-H2SO4-HF. Revista De Metalurgia, 41(Extra), 417–422. https://doi.org/10.3989/revmetalm.2005.v41.iExtra.1067

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Issue

Vol. 41 No. Extra (2005)

Section

Articles

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