BS 3146-2:1975

Cooperating organizations
Foreword
Specification
Section one. General requirements
1. Scope
2. References
3. Definitions
4. Information to be supplied by the purchaser
5. Method of manufacture
6. Freedom from contamination
7. Chemical composition
8. Tolerances
9. Freedom from defects
10. Heat treatment
11. Provision and preparation of test samples
12. Tests
13. Retests
14. Non-destructive testing
15. Rectification of defects
16. Identification
17. Manufacturer's certificate
18. The rounding of numbers rule
Section two. Specific requirements for investment
castings in corrosion and heat resisting steels and
nickel and cobalt base alloys
Type ANC 1: 13% chromium martensitic steel castings
Type ANC 2: 18% chromium 2% nickel martensitic steel
             castings
Type ANC 3: Austenitic 18% chromium 10% nickel steel
             castings
Type ANC 4: Austenitic 18% chromium, 11% nickel 3%
             molybdenum steel castings
Type ANC 5: Nickel chromium steel castings
Type ANC 6: Chromium nickel steel castings
Type ANC 8: Nickel base - 20% chromium 0.4% titanium
             castings
Type ANC 9: Nickel base - 20% chromium 2.5% titanium
             1.2% aluminium castings
Type ANC 10: Nickel base - 20% chromium 16.5% cobalt
             2.4% titanium 1.3% aluminium castings
Type ANC 11: Nickel base - 21% chromium 10% cobalt
             10% molybdenum castings
Type ANC 13: Cobalt base - 26% chromium 10% nickel
             7% tungsten castings
Type ANC 14: Cobalt base - 27% chromium 5.5% molybdenum
             2.7% nickel castings
Type ANC 15: Nickel base - 28% molybdenum castings
Type ANC 16: Nickel base - 17% molybdenum 16.5% chromium
             4.5% tungsten castings
Type ANC 17: Nickel base - 9% silicon 3% copper castings
Type ANC 18: Nickel base - 31% copper, silicon castings
Type ANC 19: Nickel base - 20% chromium, 7% niobium,
             6% molybdenum, 3% iron, 3% tungsten castings
Type ANC 20: 14% chromium, 5% nickel, 2% copper, 1%
             molybdenum steel castings
Type ANC 21: 26% chromium, 5% nickel, 3% copper, 2%
             molybdenum steel castings
Type ANC 22: 16% chromium, 4% nickel, 3% copper steel
             castings
Appendix
A. Stress unit conversion
Figures
1. Types of test sample

Chemical composition, mechanical properties, freedom from defects, heat treatment, non-destructive testing and rectification of defects. Stress units conversion in appendix.

This Part of this British Standard specifies requirements for investment castings in corrosion and heat resisting steels and nickel and cobalt base alloys, complying with the general requirements of this section. and with the appropriate requirements of section 2.