Gauge Of Sheet Metal Used For Air Condidtioning Ductwork

Minimum yield strength for steel sheet and reinforcements is 30 000 psi 207 kpa.

Gauge of sheet metal used for air condidtioning ductwork.

This measurement is for around duct smaller than 12 inches in diameter and a rectangular section no bigger than 8 inches. Minimum thickness of metal duct material shall be as listed in table m1601 1 1 2. Galvanized steel shall conform to astm a 653. Galvanized sheet metal ducts from the duct shop s hvac ductwork is manufactured from high quality galvanized steel in 3 foot lengths for easy handling.

Box 739 kennedale tx 76060 physical address 528 s. Unless otherwise specified steel sheet and strip used for duct and connectors shall be g 60 coated galvanized steel of lockforming grade conforming to astm a653 and a924 standards. As such it needs to be effective. Suburban sheet metal ltd mailing address p o.

Round ducts and enclosed rectangular ducts 14 inches or less minimum thickness 0 0157 equivalent galvanized gauge size 28. 1 inch 25 4 mm 1 smacna sheet metal and air conditioning contractors national association recommended gages for circular ducts for heating and general ventilation work recommended gages for circular ducts for industrial exhaust work. While sheet metal has been one of the most commonly used materials for ductwork advances have opened the door to several other types of material that are also used to create ductwork. One end of each piece is crimped for easy fitting of consecutive joints or to sheet metal fittings and flexible duct.

M1601 1 1 above ground duct systems. Above ground duct systems shall conform to the following.