Carbon and lowalloy steel

1. Soak clean for 10 to 30 min

2. Rinse

3. Electroclean at 5 V for 60 to 120 s

4. Rinse

5. Dip in 30% HCl for 30 to 60 s. Alternatives: 10 to 20% sulfuric acid avoids leaving chloride ions in pores and thus can improve salt spray resistance. Sulfamic acid and citric acids are also used beneficially.

6. Rinse

7. Electroclean at 5 V for 30 to 60 s

8. Rinse

9. Plate to thickness Alloy steel (Cr or Ni > 12 %)

1. Soak clean for 10 to 30 min

2. Rinse

3. Electroclean at 5 V for 60 to 120 s

4. Rinse

6. Rinse

7. Electroclean at 5 V for 30 to 60 s

8. Rinse

10. Rinse

12. Rinse

13. Plate to thickness

300 or 400 series stainless steel

1. Soak clean for 10 to 30 min

2. Rinse

3. Electroclean at 5 V for 60 to 120 s

4. Rinse

6. Rinse

8. Rinse

9. Plate to thickness

300 series stainless steel (complex shapes)

1. Soak clean for 10 to 30 min

2. Rinse

3. Electroclean at 5 V for 60 to 120 s

4. Rinse

6. Rinse

7. 10% H2SO4 at 60 °C (140 °F) for 30 s. Alternative: nickel strike

8. Plate to thickness

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