.050 Aluminum Type 3003 Ductwork with TDC connection. Aluminum 3003 Definition – General purpose alloy for moderate strength applications. 20% strength increase over 1100 with same good forming, weld ability and corrosion resistance. Used for general sheet metal work.

.040 Aluminized Ductwork with TDC connection. Aluminized Definition– A steel sheet coated on both sides with aluminum-silicon alloy. Has the appearance of aluminum with the strength of steel. More resistant to heat than either uncoated steel or solid aluminum. Withstands temperatures to 1250 degrees F.

.040 Type 3003 Aluminum Ductwork with TDC Connections. Aluminum 3003 Definition – General purpose alloy for moderate strength applications. 20% strength increase over 1100 with same good forming, weld ability and corrosion resistance. Used for general sheet metal work.

.063 Type 3003 Aluminum Fitting with S & Drive connection. Aluminum 3003 Definition – General purpose alloy for moderate strength applications. 20% strength increase over 1100 with same good forming, weld ability and corrosion resistance. Used for general sheet metal work.

.063 Type 3003 Aluminum Spiral with Rectangular Taps. Aluminum 3003 Definition – General purpose alloy for moderate strength applications. 20% strength increase over 1100 with same good forming, weld ability and corrosion resistance. Used for general sheet metal work.

.063 Type 3003 Aluminum Fittings with TDC connection. Aluminum 3003 Definition – General purpose alloy for moderate strength applications. 20% strength increase over 1100 with same good forming, weld ability and corrosion resistance. Used for general sheet metal work.