: Heat exchangers, machine parts, automotive and architectural cladding, HVAC ducting
The JIS H4100 standard specifies the requirements for extruded shapes made from aluminium and aluminium alloys. These extrusions are used across a vast range of industries, including construction, automotive manufacturing, and consumer electronics. The standard ensures that materials meet specific benchmarks for chemical composition, mechanical properties, and dimensional tolerances. Scope and Application
| First Digit | Alloy Series | Principal Alloying Element(s) | Key Characteristics | |---|---|---|---| | 1xxx | Pure Aluminum | 99.00% or higher aluminum | Excellent corrosion resistance, formability, and high electrical/thermal conductivity. | | 2xxx | Al-Cu | Copper | High strength (the original duralumin-type alloys). Lower corrosion resistance and surface treatability. | | 3xxx | Al-Mn | Manganese | Moderate strength with good corrosion resistance and formability. | | 4xxx | Al-Si | Silicon | Low melting point, often used for brazing/welding filler material. | | 5xxx | Al-Mg | Magnesium | Good corrosion resistance (especially in marine environments) and moderate-to-high strength. Surface treats well. | | 6xxx | Al-Mg-Si | Magnesium and Silicon | A highly versatile and popular series. Good extrudability and strength, which is greatly increased by heat treatment. | | 7xxx | Al-Zn-Mg | Zinc (and sometimes copper) | The highest strength aluminum alloys. Good weldability in certain variations. | | 8xxx | Other Elements | e.g., Lithium, Iron | Alloys with other principal elements not listed above. | | 9xxx | Reserve | — | Reserved for future use. | jis h4100 standard pdf
: The amount of stretch the material can endure before fracture, indicating ductility. Dimensional Tolerances
This public link is valid for 7 days and shares a thread, including any personal information you added. This link or copies made by others cannot be deleted. If you share with third parties, their policies apply. Can’t copy the link right now. Try again later. Scope and Application | First Digit | Alloy
: Always verify that you are downloading the most recent revision of the standard, as technical committees periodically update tolerance tables and alloy classifications to align with modern manufacturing capabilities.
The reliability of JIS H 4100 comes from its strict quality control protocols. Manufacturers must perform a battery of tests to verify that their products meet the standard. | | 3xxx | Al-Mn | Manganese |
," is a cornerstone of Japanese industrial manufacturing, ensuring the quality and consistency of extruded aluminum shapes. First established on May 1, 1970
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