Knudson EL 2002 - 3. PROFILE SPECIFICATIONS; 3.1. PROFILES; 3.2. MATERIAL TYPES AND THICKNESSES; 3.3. MATERIAL STRENGTH

7/11/2005 VERSION 2.0 7
3. PROFILE SPECIFICATIONS
3.1. PROFILES
2 X 3 (51-mm x 76-mm)– A Elbow – crimped up to 90 degrees.
2 X 3 (51-mm x 76-mm)– B Elbow – crimped up to 90 degrees.
3 X 4 (76-mm x 102-mm)– A Elbow – crimped up to 90 degrees.
3 X 4 (76-mm x 102-mm)– B Elbow – crimped up to 90 degrees.
3.2. MATERIAL TYPES AND THICKNESSES
Aluminum/Copper:
0.019-in and 0.027-in Aluminum Downspout Blanks
16-oz Copper Downspout Blanks
3.3. MATERIAL STRENGTH
Aluminum/Copper:
Maximum Tensile Strength = 33 ksi (230 MPa)
Maximum Yield Strength = 28 ksi (195 MPa)