BS 3146-1:1974
Current
The latest, up-to-date edition.
Specification for investment castings in metal Carbon and low alloy steels
Hardcopy , PDF
English
30-09-1974
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Foreword
Specification
1. General requirements
1.1 Scope
1.2 Definitions
1.3 Information to be supplied by the purchaser
1.4 Method of manufacture
1.5 Freedom from contamination
1.6 Chemical composition
1.7 Tolerances
1.8 Freedom from defects
1.9 Heat treatment
1.10 Provision and preparation of mechanical test
samples
1.11 Mechanical tests
1.12 Retests
1.13 Non-destructive testing
1.14 Rectification of defects
1.15 Identification
1.16 Manufacturer's certificate
1.17 The rounding of numbers rule
2. Specific requirements for carbon and low alloy steel
investment castings
Type CLA 1: Carbon steel castings
Type CLA 2: 1 1/2 % manganese steel castings
Type CLA 3: 700 N/mm squared to 850 N/mm squared alloy
steel castings
Type CLA 4: 850 N/mm squared to 1000 N/mm squared alloy
steel castings
Type CLA 5: Steel castings having a minimum tensile
strength of 1000 N/mm squared
Type CLA 7: 3% chromium-molybdenum steel castings
Type CLA 8: Carbon steel castings for surface hardening
Type CLA 9: Carbon case hardening steel castings
Type CLA 10: 3% nickel case hardening steel castings
Type CLA 11: 3% chromium-molybdenum nitriding steel
castings
Type CLA 12: 1% chromium steel castings (abrasion
resisting)
Type CLA 13: Nickel-molybdenum cast hardening steel
hardening
Appendices
A. Procedure for repairing castings by welding
B. Stress unit conversion
Table
1. Recommended electrodes, pre-heating and post-weld
heat treatment temperatures
Figure
1. Types of test sample
Twelve types of castings. Chemical composition, mechanical properties, freedom from defects, heat treatment, non-destructive testing and rectification of defects. Appendices give a procedure for repairing castings by welding and stress unit conversion.
| Committee |
ISE/111
|
| DevelopmentNote |
Supersedes 71/42874 DC (07/2005) Reviewed and confirmed by BSI, December 2012. (11/2012)
|
| DocumentType |
Standard
|
| Pages |
24
|
| PublisherName |
British Standards Institution
|
| Status |
Current
|
This Part of this British Standard specifies requirements for carbon and low alloy steel investment castings complying with the general requirements of this Section and with the appropriate requirements of Section 2.
| BS 131-1:1961 | Methods for notched bar tests The Izod impact test on metals |
| BS 427-1:1961 | Method for Vickers hardness test Testing of metals |
| BS 4570-1:1970 | Specification for fusion welding of steel castings Production, rectification and repair |
| BS 350:2004 | Conversion factors for units |
| BS 1957:1953 | Presentation of numerical values (fineness of expression; rounding of numbers) |
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