Gauges 28 to 16 for galvanized spiral lock seam 28 to 18 for stainless steel spiral lock seams 0 025 to 0 080 for aluminum spiral lock seams 22 gauge to 3 8 for welded longitudinal seam duct.
Stainless steel spiral wound duct.
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With stainless steel 304 or 316 biyang stainless steel spiral duct is more rust resistant and much tougher than the galvanised steel ducting.
It has excellent drawing and forming characteristics and provides excellent resistance to a wide range of corrosives.
Single wall round spiral duct and fittings construction standards positive pressure gauge selection for galvanized steel astm a 653 paint grip steel type 304 and 316 stainless steel and eastern polyvinyl chloride coated steel pcs fittings are spot welded and or gorelocked through 40 diameter.
24 gauge type 304 stainless steel spiral ductwork with slip connection.
It can be used in a tougher environment and still maintains the clean and green air.
304 stainless steel is more corrosion resistant than steel.
Stainless steel 304 definition this basic 18 chrome 8 nickel stainless steel is the most versatile and widely used austenitic grade.
Galvanized steel has good corrosion resistance.
Biyang stainless steel spiral duct or stainless steel spiral pipe has been in hvac ducting industry for more than 10 years.
Spiral ducting is a circular round spirally wound length of duct this type of ductwork is generally cost effective as it can be made with 32 less sheet metal than rectangular ducting.
It is also less likely to leak due to it having fewer transverse longitudinal joints when run in long straight sections.