BS 4276:1968
Current
The latest, up-to-date edition.
Specification for hard metal for wire, bar and tube drawing dies
Hardcopy , PDF
English
21-02-1968
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Co-operating organizations
Foreword
Specification
1 Scope
2 Method of manufacture
3 Designation
4 Hardness
5 Hardness test
6 Transverse rupture strength
7 Cobalt content
8 Impurities
9 Grain size
10 Porosity
11 Defects
Table
1 Hard Metal designated in accordance with groups of
hardness
Eight types. Hardness, composition and grain size.
| Committee |
W/-
|
| DevelopmentNote |
Supersedes 66/8963 DC (08/2005) Reviewed and confirmed by BSI, December 2012. (11/2012)
|
| DocumentType |
Standard
|
| Pages |
10
|
| PublisherName |
British Standards Institution
|
| Status |
Current
|
1.1 This British Standard specifies requirements for Hard Metal grades generally used in the manufacture of dies for cold drawing wire, bar and tube in ferrous and non-ferrous metals and alloys.
1.2 Special Hard Metal grades in which some or all of the cobalt is present as eta-phase or in which binder metals other than Cobalt are used, are excluded from this specification.
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