Dacromet hexagon bolt has many advantages, which are listed as follows:
Ultra strong corrosion resistance: the thickness of Dacromet hexagon bolt film is only 4-8 μ m, but its antirust effect is more than 7-10 times of that of traditional galvanizing, hot galvanizing or coating. The standard parts and pipe joints treated by Dacromet process did not show red rust after salt spray test for more than 1200h.
No hydrogen embrittlement: the treatment process of Dacromet hexagon bolt determines that Dacromet has no hydrogen embrittlement, so Dacromet is very suitable for the coating of stressed parts.
High heat resistance: Dacromet hexagon bolt can resist high temperature corrosion, and the heat resistance temperature can reach 300 ℃ or above. The traditional galvanizing process, when the temperature reaches 100 ℃, has been peeling and scrapped.
Good adhesion and recoating performance: Dacromet coating has good adhesion with metal matrix and strong adhesion with other additional coatings. The treated parts are easy to be painted, and the adhesion with organic coating even exceeds that of phosphating film.
Good permeability: due to electrostatic effect, it is difficult to electroplate zinc on the deep hole, slit, inner wall of pipe fitting and other parts of the workpiece, so the above parts of the workpiece cannot be protected by electroplate. Dacromet can enter these parts of the workpiece to form Dacromet coating.
No pollution and public nuisance: in the whole process of production, processing and workpiece coating of Dacromet hexagon bolt, there will be no waste water and waste gas polluting the environment, no three wastes treatment is needed, and the treatment cost is reduced.
Black Hex A325M 10.9S Structural Bolt, Class 4.8 8.8 10.9 M20 A36/ A307 /A325 High tensile Bolts and nuts, Astm Hexagonal head bolt, Carbon steel M6-M48 black hex cap screw half thread head bolt, Carbon Steel SAE J429 GR.2/5/8 inch size 1/2-1″ Hex head Bolt Black Hex A325M 10.9S Structural Bolt Features: Material Carbon steel/Stainless […]