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BS EN 4826:2014

BS EN 4826:2014

$102.76

Aerospace series. Zinc-Nickel (12 %-16 % Ni) plating of steels with specified tensile strength ≤ 1 450 MPa, copper alloys, nickel alloys and aluminium alloys for parts and fasteners

Published By Publication Date Number of Pages
BSI 2014 18
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This European Standard specifies the plating of a Zinc-Nickel (12 % to 16 %) alloy on mechanical parts and fasteners in steels ( R m ≤ 1 450 MPa), stainless steels ( R m ≤ 1 450 MPa), copper alloys, nickel alloys and aluminium alloys (not applicable for electrical components), as well as the passivation and lubricant finishing that can be associated to them. The Zinc-Nickel process is an electrolytic plating process under controlled current allowing to deposit a Zinc-Nickel layer from, most often, an alkaline electrolyte. Alkaline Zinc-Nickel is only considered in this standard.

The purpose of this standard is to give technical and quality requirements of Zinc-Nickel plating. It doesn’t give complete in-house process instructions, these shall be given in the manufacturers detailed process instructions.

PDF Catalog

PDF Pages PDF Title
4 Contents
5 Foreword
6 1 Scope
2 Normative references
7 3 Terms and definitions
4 Purpose of process
8 5 Applicability and limitations of the process
6 Coating system classification
6.1 System types
9 6.2 Coating thicknesses
7 Requirements
7.1 Process requirements
7.1.1 Information for the processor
7.1.2 Condition of parts prior to the treatment
10 7.1.3 Process conditions
11 7.2 Main technical engineering requirements
7.2.1 General
12 7.2.2 Appearance
7.2.3 Adhesion
7.2.4 Coating thickness
7.2.5 Corrosion resistance
13 7.2.6 Nickel content
7.2.7 Hydrogen embrittlement of steels
8 Quality requirements
8.1 Approval of the processor
8.2 Process approval
14 8.3 General points
15 8.4 Periodic tests
8.5 Periodic chemical analysis
8.6 Parts acceptance controls
8.6.1 Controls before treatment
8.6.2 Controls during treatment
16 8.6.3 Controls after Zinc-Nickel plating ( passivation
8.6.4 Controls after lubricant finishing
9 Designation

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BS EN 4826:2014
$102.76