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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Articles