According to customers wishes galvanic coatings are applied to our nuts as corrosion protection.
The kind of the galvanic coatings is indicated in abbreviations as follows:
Example: A2F
A = Code letter for coating material (table 1), in this case zinc
2 = Code number for layer thickness (table 2), in this case 5 µm
F = Code letter for the gloss level and the finishing treatment (table 3), in this case blank, bluish.
Abbreviation | Element | Code name |
Zn | Zinc | A |
Cd | Cadmium | B |
Cu | Copper | C |
CuZn | Copper-Zinc | D |
Ni b | Nickel | E |
Ni b Cr r | Nickel-Chrom | F |
CuNi b | Copper-Nickel | G |
CuNi b CR r | Copper-Nickel-Chrom | H |
Sn | Tin | J |
CuSn | Copper-Tin | K |
Ag | Silver | L |
CuAg | Copper-Silver | N |
ZnNi | Zinc-Nickel | P |
ZnCo | Zinc-Cobalt | Q |
ZnFe | Zinc-Iron | R |
Gloss level |
Process group | Colour | |
A |
matt | A | colourless |
B | matt | B | bluish |
C | matt | C | yellowish |
D | matt | D | olive |
E | blank | A | colourless |
F | blank | B | bluish |
G | blank | C | yellowish |
H | blank | D | olive |
J | bright | A | colourless |
K | bright | B | bluish |
L | bright | C | yellowish |
M | bright | D | olive |
P/U | optional | like B, C or D | without chromating |
R | matt | F/Bk | black |
S | blank | F/Bk | black |
T | bright | F/Bk | black |
Galvanic coatings are realized by means of current. This is passed through an electrolytic bath. At the positive pole there is the metal which has to be applied, like for example zinc or nickel. At the minus pole there is the object which has to be coated. By means of the electrical current, metal ions are released from the consumable electrode and are deposited by reduction on the product. Thus the item which has to be finished is coated evenly all-side. The longer an object is in the electrolytic bath and the higher the electrical current is, the thicker the metal layer becomes.
Upon request you receive all nuts of Vöhrs for protection of corrosion with all galvanic coatings.
Vöhrs GmbH & Co. KG
Neuebrücke 1
D-58566 Kierspe
Fon: +49 23 59 . 70 11
Fax: +49 23 59 . 29 13 31
E-Mail:
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Vöhrs GmbH & Co. KG, Neuebrücke 1, D-58566 Kierspe, Fon: +49 2359 7011, Fax: +49 2359 291331 - Privacy policy - Cookie preferences