Corrosion potential
ZAM® and post hot-dip galvanized product (HDZ) show nearly the same level of corrosion potential.
Corrosion potential in different solutions (after immersion for an hour)
Corrosion potential test solutions
Measurement was taken after the specimen was immersed in water solution for an hour and its corrosion potential was found fairly stable.
*1 : 5％NaCl（10L）＋HNO3（12mL）＋H2SO4（17.3mL), pH adjusted by NaOH
*2 : H2SO4 is added to 0.1% NaCl solution to adjust pH to 4.
*1 : 5％NaCl（10L）＋HNO3（12mL）＋H2SO4（17.3mL), pH adjusted by NaOH
*2 : H2SO4 is added to 0.1% NaCl solution to adjust pH to 4.
Source: Nippon Steel