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Channel
Carbon steel
Hot-rolled
ISO 657-1 (JIS G 3192)
For general structural members such as beams, girts and frames. It is the place to start when you are unsure which channel to use.
Stainless steel
Hot-formed
ISO 16143-2 (JIS G 4317)
For structural members that need corrosion resistance. This is the base standard for stainless steel channels.
For building structures
JIS G 4321
For structural members of buildings where seismic design is involved.
Channel Section Dimensions | Updraft - Mechanical Engineering Calculators