BS 970-4:1970
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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Specification for wrought steels for mechanical and allied engineering purposes Valve steels
Hardcopy , PDF
English
12-02-1970
15-08-1998
Co-operating organizations
Foreword
SPECIFICATION
1. GENERAL REQUIREMENTS
1.1 Scope
1.2 General
1.3 Information to be supplied by the purchaser
1.4 Steelmaking process
1.5 Chemical composition
1.6 Product analysis and permitted variations
1.7 Freedom from defects
1.8 Standard sizes and tolerances
1.9 Condition of material on delivery
1.10 Text deleted
1.11 Text deleted
1.12 Number of hardness tests
1.13 Hardness test
1.14 Retests
1.15 Inspection
1.16 Test facilities
1.17 Manufacturer's statement
1.18 Identification
1.19 Text deleted
2. SPECIFIC REQUIREMENTS FOR STAINLESS AND HEAT RESISTING
STEELS
Text deleted
3. SPECIFIC REQUIREMENTS FOR VALVE STEELS
Appendices
A. Text deleted
B. Summary tables
General requirements: information to be supplied by purchaser, product analysis and permitted variations, condition of material on delivery, hardness testing, etc. En steels replaced. Chemical composition, condition of supply, approval test and heat treatment of individual valve steels. Summary tables.
| Committee |
ISE/100
|
| DevelopmentNote |
Supersedes BS 970(1955) (07/2004)
|
| DocumentType |
Standard
|
| Pages |
14
|
| PublisherName |
British Standards Institution
|
| Status |
Superseded
|
| SupersededBy | |
| Supersedes |
| Standards | Relationship |
| ISO 683-17:2014 | Similar to |
| EURONORM 90 : 1971 | Similar to |
| ISO 683-15:1992 | Similar to |
| ISO 683-13:1974 | Similar to |
| UNE-EN 60684-3-300:2003 | Identical |
| UNE-CEN/TS 13810-2:2004 | Identical |
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