WebThe RoHS Directive restricts hexavalent chromium, but does not restrict less hazardous trivalent chromium, which is used in our zinc processing. Zinc trivalent chromate coatings, also called zinc passivation coatings, provide an excellent, inexpensive, attractive finish and good corrosion resistance. Suitable for Fasteners High-end Fasteners WebTrivalent Chromate: 5 [SPCC] SPCC- ... RoHS Material Surface Treatment Nominal of Thread (M) Material Steel Material: Stainless Steel Surface Treatment (Detailed) 13,137 VND 1 Piece(s) Available: Same day 10: Steel: Trivalent Chromate: 2 …
Clear Trivalent Passivate - Great Lakes Metal Finishing
WebIn Europe, the RoHS (Restriction of Hazardous Substances) Directive is commonly referred to regarding elimination of chromic acid (hexavalent chromium) and requires the only … WebWhile this chromate conversion coating is still prevalent, the zinc plating industry has seen a rise in the need for trivalent black, as it is RoHS Compliant and more environmentally … city landscapes cambridge
RoHS Compliant Metal Finishing Anodizing Plating Chemfilm
WebIt is the hexavalent chromate particle that produces the gold color associated with gold alodine (chem film). Gold chem film, therefore, is not RoHS compliant. We offer our hexavalent chem films in both clear and gold color. RoHS compliant trivalent chromate, however, is only offered in clear. WebJan 16, 2024 · Depending on the process used and its operating conditions, the trivalent chromium ion content typically ranges from 5 to 20 g/L (0.67 to 2.67 oz/gal). It is introduced as a water-soluble salt and forms a stable specie upon combining with the stabilizing agents/catalysts. WebTompkins phased in trivalent chromate plating, beginning in Fall 2006 in order to stay compliant with the European Union (RoHS) restrictions on the use of certain substances as well the documented recognition of hazards in handling hexavalent chromium by NIOSH. The substance of concern is hexavalent chrome used in zinc plating. city landscape clip art