BS 4577:1970
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
Specification for materials for resistance welding electrodes and ancillary equipment
Hardcopy , PDF
01-01-2009
English
20-03-1970
Co-operating organizations
Foreword
Specification
1 Scope
1.1 Scope
2 General requirements
2.1 General
2.2 Definitions
2.3 Information to be supplied by the purchaser
2.4 Material availability
2.5 Freedom from defects
2.6 Defects revealed after delivery
2.7 Selection of test samples
2.8 Mechanical tests
2.9 Electrical tests
2.10 Retests
2.11 Certificate of compliance
2.12 Inspection
2.13 Marking
3 Specific requirements for group 'A' - copper
alloys
3.1 Introduction
3.2 General
3.3 Nominal composition
3.4 Electrical conductivity
3.5 Mechanical tests
4 Specific requirements for group 'B' - sintered
materials
4.1 Introduction
4.2 General
4.3 Nominal composition
4.4 Electrical conductivity
4.5 Mechanical tests
Appendices
A Recommended applications
B Stress unit conversions
C Approximate comparison of hardness scales
Tables
1 Group 'A' - copper alloys
2 Group 'B' - sintered materials
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