Catalog 21 Page 60 Profiles

For the most up to date information on 80/20 products visit 8020.net / 60 T-Slotted Aluminum Proles PROFILES Simple Beam Deection Calculations T-Slot Prole Specications Example Using Formula A: Using the 1515 T-slot prole, a length of 30.00 inches, and an applied force of 50 pounds, you should nd the approximate beam deection to be .011 inches. Using the 40-4040 T-slot prole, a length of 762mm, and an applied force of 222.40 Newtons, you should nd the approximate beam deection to be .21mm. L 3 W =D 48EI This formula will yield worst case deection for a beam supported at both ends with the load centered over the span. This formula will yield worst case deection for a beam supported at both ends with the load evenly distributed over the span. 5L 3 W =D 384EI This formula will yield worst case deection for a beam fastened at one end and cantilevered horizontally with the load applied at the end of the beam. L 3 W =D 3EI Formula A Formula B Formula C Formula Reference: L = Length in Inches E = Modulus of Elasticity W =Load in Pounds D =Deection in Inches I = Moment of Inertia FRACTIONAL METRIC 35,000 p.s.i. (min) Yield Strength 241.1 N/mm 2 (min) 38,000 p.s.i. (min) Tensile Strength 262.0 N/mm 2 (min) A5 minimum 10% Elongation A10 minimum 8% 10,200 k lb/in. 2 Elasticity E 70,326.5 N/mm 2 Rockwell approximately E-88 Hardness Brinell approximately 75 HB .004 per 1 inch of width Flatness 0.1mm per 25.4mm of width 0.0125 inches per 1 foot of length not to exceed 0.118 inches over 20 feet of length Straightness 0.32mm per 304mm of length, not to exceed 3mm over 6.1 m of length Per 1 foot of length not to exceed .25 degree and total twist over 20 feet of length not to exceed 1.5 degrees Twist Per 304mm of length not to exceed .25 degree and total twist over 6.1m of length not to exceed 1.5 degrees Note: Extrusion conforming to DIN 17 615 specications. Unless otherwise specied, all proles will have etch and clear (MIL-A-8625F) anodizing with depth of .0004 inches (0.010mm) and surface hardness of approximately 250 HV (anodized proles should not be welded because of toxic fumes).

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