From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Specification for drawn phosphor bronze bar, including chemical analysis and mechanical test results.
| Identifier | ExFiles\Box 176\3\ img110 | |
| Date | 1st January 1929 | |
| COPY. Revised 1.1.29. ROLLS ROYCE LIMITED. SPECIFICATION NUMBER 214B. MATERIAL. DRAWN PHOSPHOR BRONZE BAR. ANALYSIS. Tin .. .. .. .. .. .. .. 2.7 to 5.0% Phosphorous. .. .. .. .. .. .10 to .3 % Zinc.. .. .. .. .. .. .. Maximum .1% Arsenic.. .. .. .. .. .. .. " .3% Lead .. .. .. .. .. .. .. " .2% Iron .. .. .. .. .. .. .. " .2% NOTE. This specification is also to be used to replace No: 217 (brazing metal for bar work.) TESTS. Bars up to 1" Max. stress Elong. Not less than 25 tons. 22% Bars over 1" Not less than 20 tons. 24% BRINELL. 101 - 130. | ||