: Features increased strength and toughness. It adds higher iron levels (up to 5.0%) and up to 3.0% nickel to improve grain structures.
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If you are designing a high-stress electrical connector or a non-sparking safety tool, you need . If you are designing a large pump housing or ship propeller, you were looking at JIS H 5114 (now H 5120). jis h 5114 pdf
Propellers, propeller shafts, valve bodies, and pump impellers for sea water.
, which now covers copper and copper alloy castings collectively. GlobalSpec Key Technical Breakdown : Features increased strength and toughness
Used for certain aircraft parts due to its relatively low specific gravity compared to other bronze alloys. 株式会社岡本 Standard Equivalents
| Grade Symbol | Old Symbol | Description | Typical Applications | | --- | --- | --- | --- | | | BsC1 | Tin bronze (not strictly brass, but often included in older references). Low lead. | General valves, low-pressure fittings | | CAC202 | BsC2 | Leaded brass with excellent machinability. | Valve stems, high-speed machining components | | CAC203 | BsC3 | High-strength brass with added manganese and iron. | High-pressure valves, pump parts | | CAC204 | BsC4 | Aluminum bronze for corrosion resistance. | Marine fittings, seawater valves | If you are designing a high-stress electrical connector
The JSA restructured its copper-alloy taxonomy, integrating these casting classifications into JIS H 5120 (general copper and copper alloy castings) and JIS H 5121 (copper alloy continuous castings).
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Pressure testing guidelines for fluid-handling components (valves and pumps). Industrial Applications of JIS H 5114 Castings
Integrated into JIS H 5120 (Copper and Copper Alloy Castings) and JIS H 5121 (Copper Alloy Continuous Castings).