Aluminium bronze alloys are defined by their unique blend of high tensile strength, exceptional wear resistance, and superb corrosion resistance under load. The standard maps out specific elemental thresholds to balance these physical traits.
Authentic, legal documents are strictly distributed via accredited global clearinghouses like Intertek Inform's JIS H 5114 page.
The standard references other fundamental JIS testing procedures to verify the quality of the aluminum bronze:
Which specific grade () is required for your design?
: Conducted according to JIS Z 2241 , using machined test pieces (No. 4) to ensure the material meets specific mechanical properties. Hardness Test : Follows the methods specified in JIS Z 2243 .
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When working on international projects, engineers must map JIS H 5114 designations to equivalent standards used in other regions.
To appreciate the importance of JIS H 3270, one must understand the material it governs: beryllium copper. This is the strongest of the copper alloys, combining high strength with excellent electrical and thermal conductivity.
The keyword refers to a prominent Japanese Industrial Standard for Aluminium Bronze Castings . This standard was historically essential for engineers and manufacturers requiring high-strength, corrosion-resistant copper-based materials. However, it is important to note that JIS H 5114 has been officially withdrawn and superseded by newer, consolidated standards like JIS H 5120 (Copper and Copper Alloy Castings) and JIS H 5121 (Copper Alloy Continuous Castings).
Typically measured via Brinell hardness; for example, AlBC2 often shows a hardness ≥142is greater than or equal to 142
For detailed information on JIS H 5114, I recommend accessing the official JIS documentation or reaching out to the Japanese Standards Association. They would be able to provide the most accurate and up-to-date information.
Note: Always verify exact chemical tolerances in the PDF before substituting alloys, as "equivalent" does not always mean "identical." How to Access and Download the Official JIS H 5114 PDF
The elemental tolerances detailed within the historical standard documentation follow strict boundaries: Alloy Grade Copper (Cu) Aluminum (Al) Nickel (Ni) Manganese (Mn) 8.0 – 10.0 1.0 – 3.0 0.1 – 1.0 0.1 – 1.0 AlBC2 8.0 – 10.5 2.5 – 5.0 1.0 – 3.0 0.1 – 1.5 AlBC3 78.0 – 85.0 8.5 – 10.5 3.0 – 6.0 3.0 – 6.0 0.1 – 1.5 AlBC4 6.0 – 9.0 2.0 – 5.0 1.0 – 4.0 7.0 – 15.0 Mechanical Properties and Key Behaviors
: Sets minimum standards for tensile strength, elongation, and Brinell hardness. Where to Find the 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
JIS H 5114 served its purpose for decades as the definitive Japanese standard for aluminum bronze castings. Although it has been officially replaced by the more comprehensive JIS H 5120:2016, its specific grades and technical data remain critically important for maintaining legacy equipment and understanding aluminum bronze materials.