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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.
  
  


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