Suburban sheet metal ltd mailing address p o.
Gauge of sheet metal used for air condidtioning ductwork.
Your ductwork in angleton tx is the air delivery system for your air conditioner.
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.
Above ground duct systems shall conform to the following.
Round ducts and enclosed rectangular ducts 14 inches or less minimum thickness 0 0157 equivalent galvanized gauge size 28.
This measurement is for around duct smaller than 12 inches in diameter and a rectangular section no bigger than 8 inches.
Minimum yield strength for steel sheet and reinforcements is 30 000 psi 207 kpa.
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.
Kennedale tx 76060 phone 817 478 0801 fax 817 483 6571 page 5 of 43 sheet metal standards duct guage and enforcing for 1 ess drive gauge of metal duct dimensions 5 joint 4 joint 2 5 joint 2 joint joint.
Galvanized steel shall conform to astm a 653.
The thinnest acceptable sheet metal for ductwork used in a single dwelling is 28 gage or 0 013 and 0 018 inches for galvanized and aluminum respectively.
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.
Minimum thickness of metal duct material shall be as listed in table m1601 1 1 2.
M1601 1 1 above ground duct systems.
Box 739 kennedale tx 76060 physical address 528 s.