While the full table from the original document is extensive, the standard specified precise limits for both mechanical and chemical properties. The table below compiles the typical specifications for the grades defined in JIS H 5114:1988.
This is the "bible" for manufacturers and users of beryllium copper in wrought form. jis h 5114 pdf
According to the historical data preserved in JIS H 5114 documentation , the chemical spectrum for the core casting grades includes: Class / Grade Copper (Cu) % Aluminum (Al) % Iron (Fe) % Nickel (Ni) % Manganese (Mn) % 8.0 – 10.0 1.0 – 3.0 0.1 – 1.0 0.1 – 1.0 Class 2 (AlBC2) 8.0 – 10.5 2.5 – 5.0 1.0 – 3.0 0.1 – 1.5 Class 3 (AlBC3) 8.5 – 10.5 3.0 – 6.0 3.0 – 6.0 0.1 – 1.5 Class 4 (AlBC4) 6.0 – 9.0 2.0 – 5.0 1.0 – 4.0 7.0 – 15.0 While the full table from the original document
The standard defines precise chemical compositions and mechanical properties that must be met for certification. Chemical Composition (Representative for AlBC3) Copper (Cu) Aluminium (Al) Nickel (Ni) Manganese (Mn) AlBC3 Material Detail Mechanical Properties According to the historical data preserved in JIS
: Used for general purposes with good corrosion resistance. AlBC2 : Higher strength, suitable for gears and bushings.
Improves corrosion resistance and strength, particularly at higher temperatures.