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DEFSTAN 03-14/3(2005) : 2005

Superseded
Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

View Superseded by
superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

ELECTRO-DEPOSITION OF CHROMIUM FOR ENGINEERING PURPOSES
Superseded date

03-03-2008

Published date

12-01-2013

Preface
Main Text
SECTION 1 - GENERAL REQUIREMENTS
1 Scope
2 Warning
3 Related Documents
4 Definitions
5 Information to be Supplied to the Processor
6 Process Control
SECTION 2 - PROCESS REQUIREMENTS
7 Condition of Substrate
8 Chromium Plating Process
9 Reclamation of Worn or Over-Machined Items
10 Thickness of Plating After Final Finishing
SECTION 3 - PLATING ON FERROUS METALS
11 General
12 Stress Relief
13 Introduction of Surface Compressive Stresses
14 Preparation for Plating
15 Electro-Deposition of Chromium
16 Post Plating Heat Treatment
SECTION 4 - PLATING ON ALUMINIUM AND ALUMINIUM ALLOYS
17 General
18 Preparation for Plating
19 Electro-Deposition of Chromium
20 Post Plating Heat Treatment
SECTION 5 - PLATING ON TITANIUM AND TITANIUM ALLOYS
21 Plating
22 Preparation for Plating
23 Electro-Deposition of Chromium
24 Post Plating Heat Treatment
SECTION 6 - PLATING ON OTHER METALS
25 General
26 Preparation for Plating
27 Electro-Deposition of Chromium
SECTION 7 - INSPECTION AND TEST
28 Inspection and Testing
29 Visual Inspection
30 Thickness of Coating
31 Hardness
32 Adhesion
33 Freedom from Embrittlement
34 Other Requirements
35 Treatment of Items Rejected During Final Inspection and Test
ANNEX A - Chromium Plating Process
ANNEX B - The Analysis of Normal Type Chromium Plating Solution
ANNEX C - Post Plating Heat Treatment for Ferrous Metals
ANNEX D - Chemical Methods of Stripping Chromium Deposits

Specifies the requirements for the electro-deposition of chromium on ferrous metals, aluminium and aluminium alloys, titanium and titanium alloys and other metals for one or more of the following purposes: (a) The production of wear resistant surfaces, (b) Corrosion resistance coupled with wear resistance, (c) The build up of worn or over machined surfaces.

DevelopmentNote
Supersedes DEFSTAN 03-14/2(1995) (02/2005)
DocumentType
Standard
PublisherName
UK Ministry of Defence Standards
Status
Superseded
SupersededBy
Supersedes

DEFSTAN 00-970(PT0)/6(2010) : 2010 DESIGN AND AIRWORTHINESS REQUIREMENTS FOR SERVICE AIRCRAFT - PART 0: PROCEDURES FOR USE, CONTENT AND DEFINITIONS
DEFSTAN 03-4/5(2006) : 2006 THE PRE-TREATMENT AND PROTECTION OF STEEL ITEMS OF MAXIMUM TENSILE STRENGTH EXCEEDING 1450 MPA
DEFSTAN 00-970(PT0)/7(2011) : 2011 DESIGN AND AIRWORTHINESS REQUIREMENTS FOR SERVICE AIRCRAFT - PART 0: PROCEDURES FOR USE, CONTENT AND DEFINITIONS
DEFSTAN 03-32(PT4)/4(2005) : 2005 PRE-TREATMENT AND PAINTING OF VEHICLES, ENGINEERING EQUIPMENT AND COMPONENTS - PART 4: SYSTEMS FOR FERROUS METAL, EXCLUDING ARMOUR
DEFSTAN 03-27/3(2005) : 2005 ELECTRO-DEPOSITION OF NICKEL FOR ENGINEERING PURPOSES
DEFSTAN 00-970(PT0)/5(2007) : 2007 DESIGN AND AIRWORTHINESS REQUIREMENTS FOR SERVICE AIRCRAFT - PART 0: PROCEDURES FOR USE, CONTENT AND DEFINITIONS
DEFSTAN 03-19/3(2005) : 2005 ELECTRO-DEPOSITION OF CADMIUM
DEFSTAN 03-38/1(2007) : 2007 GUIDANCE FOR THE USE OF ALTERNATIVES TO HEXAVALENT CHROMIUM FOR THE PROTECTIVE COATING OF DEFENCE EQUIPMENT

BS EN ISO 6507-1:2005 Metallic materials. Vickers hardness test Test method
DEFSTAN 03-4/4(1998) : 1998 THE PRE-TREATMENT AND PROTECTION OF STEEL ITEMS OF SPECIFIED MAXIMUM TENSILE STRENGTH EXCEEDING 1450 MPA
BS 5411-6:1981 Methods of test for metallic and related coatings Vickers and Knoop microhardness tests
DEFSTAN 03-21/3(2002) : 2002 MECHANICAL METHODS FOR THE INDUCEMENT OF RESIDUAL SURFACE COMPRESSIVE STRESSES
BS 5599:1993 Specification for hard anodic oxidation coatings on aluminium and its alloys for engineering purposes
DEFSTAN 03-27/2(1998) : 1998 ELECTRODEPOSITION OF NICKEL FOR ENGINEERING PURPOSES
DEFSTAN 03-25/4(2003) : 2003 SULFURIC ACID ANODISING OF ALUMINIUM AND ALUMINIUM ALLOYS
DEFSTAN 03-31/1(1993) : 1993 A GUIDE TO THE USE OF CHROMIUM PLATING FOR ENGINEERING PURPOSES
BS 334:1982 Specification for compositional limits of chemical lead
DEFSTAN 03-2/3(1995) : 1995 CLEANING AND PREPARATION OF METAL SURFACES
DEFSTAN 03-24/4(2003) : 2003 CHROMIC ACID ANODIZING OF ALUMINIUM AND ALUMINIUM ALLOYS

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