BS 6980-5(1990) : 1990 AMD 1995

Name: BS 6980-5(1990) : 1990 AMD 1995
Brand: BSI

Superseded

View Superseded by

STRESS CORROSION TESTING - METHOD FOR THE PREPARATION AND USE OF C-RING SPECIMENS

Superseded date

15-10-1995

Published date

23-11-2012

Publisher

British Standards Institution

Committees responsible
National foreword
Method
1 Scope
2 Normative references
3 Definitions
4 Principle
5 Specimens
6 Procedure
7 Assessment of results
8 Test report
Annex
A Formula for calculating stressing of C-ring
     specimens
Table
A.1 Deflection delta D for a C-ring of nominal 19 mm
     outside diameter and 1,50 mm wall thickness of
     alloy with a modulus of elasticity of 100 000 MN/m2
     for stressing to 500 MN/m2
Figures
1 Sampling procedure for testing procedures
2 Example of C-ring specimen
3 Methods of stressing C-rings
4 Suitable jig for the placement of a wedge opening
     insert
5 Protection against crevice corrosion and galvanic
     effects
A.1 Correction factor for curved beams

This covers procedures for designing, preparing, stressing, exposing and inspecting C-ring test specimens for investigating the susceptibility of a metal to stress corrosion. Analysis of the state and distribution of stress in the C-ring is presented. The C-ring is a versatile, economical specimen for determining the susceptibility to stress corrosion cracking of all types of metals in a wide variety of product forms including parts joined by welding. Suitable for tests of tube, rod and plate. Notched specimens may also be used. C-ring specimens may be stressed to predetermined levels, using simple equipment for application of either constant load or constant strain.

Committee	ISM/NFM/8
DevelopmentNote	Superseded and renumbered by BS EN ISO 7539-5 (07/2004) Supersedes 88/36889 DC (06/2005)
DocumentType	Standard
PublisherName	British Standards Institution
Status	Superseded
SupersededBy	BS EN ISO 7539-5:1995

Standards	Relationship
ISO 7539-5:1989	Identical

BS 6980-1(1988) : 1988 AMD 8715	STRESS CORROSION TESTING - GUIDE TO TESTING PROCEDURES
BS EN ISO 7539-6:2011	Corrosion of metals and alloys. Stress corrosion testing Preparation and use of precracked specimens for tests under constant load or constant displacement
BS 6980-6(1990) : AMD 8734	STRESS CORROSION TESTING - METHOD FOR THE PREPARATION AND USE OF PRE-CRACKED SPECIMENS
ISO 7539-6:2011	Corrosion of metals and alloys Stress corrosion testing Part 6: Preparation and use of precracked specimens for tests under constant load or constant displacement
ISO 7539-1:2012	Corrosion of metals and alloys — Stress corrosion testing — Part 1: General guidance on testing procedures
BS EN ISO 7539-1:2012	Corrosion of metals and alloys. Stress corrosion testing General guidance on testing procedures