DEFSTAN 95-16/4(2008) : 2008

Foreword
Introduction
1 Scope
2 Warning
3 Normative References
4 Definitions
   4.2 Ageing
   4.3 Contractor
   4.4 Design Authority
   4.5 Fully Overaged
   4.6 MoD Authority
   4.7 Normalizing
   4.8 Overaged
   4.9 Peak Ageing
   4.10 Primary Hardening (also known as Austenite Conditioning)
   4.11 Softening
   4.12 Solution Annealing
   4.13 Sub-Zero Treatment
5 Information to be Supplied by the Purchaser
6 Process Control Schedule (PCS)
7 Testing
8 Conditions of Acceptance
9 Material Specification
   9.1 Processing
   9.2 Surface dressing
   9.3 Conditions and heat treatment
10 Inspection and Test
   10.1 General
   10.2 Mechanical properties
   10.3 Dimensional check
   10.4 Retests
11 Heat Treatment
12 Control Test Pieces
13 Marine Applications
Annex A - Hot Worked Products
   A.1 Scope
   A.2 Testing
   A.3 Chemical Composition
   A.4 Manufacture
        A.4.1 Process
        A.4.2 Surface dressing
   A.5 Conditions and Treatment
   A.6 Inspection and Tests
        A.6.1 General
        A.6.2 Mechanical properties
        A.6.3 Up-ending test
        A.6.4 Certification
        A.6.5 Dimensional check
        A.6.6 Retests
Annex B - Cold Worked Products
   B.1 Scope
   B.2 Mechanical Properties
   B.3 Chemical Composition
   B.4 Manufacture
        B.4.1 Surface dressing
        B.4.2 Supply condition
        B.4.3 Dimensions and tolerances
        B.4.4 Surface texture
        B.4.5 Shot blasting
   B.5 Conditions and Treatment
   B.6 Tensile Tests
   B.7 Bend Test
        B.7.3 Certification
   B.8 Dimensional Check
   B.9 Retests
Annex C - Manufacture
   C.1 Scope
   C.2 Testing
   C.3 Cutting and Forming
        C.3.1 Material to Annex A
        C.3.2 Material to Annex B
   C.4 Welding
   C.5 Flaw Detection
   C.6 Defect Rectification
   C.7 Heat Treatment
   C.8 Control Test Pieces

This standard defines the Specification and Manufacture of Weldable Precipitation Hardening Martensitic Stainless Steels and forgings in the form of cold-worked sheet and strip in addition to hot-worked bars, billets and plates.