Pre-Bent Elbows

Select below to browse our Online Catalog
Documents [new window]
arrowPrebent Elbows Price List.pdf
Stock price lists for stainless steel, aluminum, and mild steel elbows, transitions, and straight tubing.

arrowRequest a Quote.pdf
Sketch an assembly and email or
fax your requests on this form

arrowElbows.pdf
Special angles or longer legs may
use this form for single bends

arrowBend Die List.pdf
Bending Dies in stock at Woolf
Aircraft arranged by tube diameter showing actual centerline| radii available

Stock Elbows

Woolf Aircraft stocks elbows in various materials, bend radius, angles and thickness. Materials used are stainless grades 304, 316 and 321, aluminum types 6061, 5052, and 3003, and 1010 steel. The actual bend dies we have determine the bend radius. Normally they are a multiple of the outside tube diameter. They are referred to as 1D (one times the outside diameter), 2D or 3D. Standard radius is 2D, tight radii are 1 to 1-1/2D and wide radii are 3D or more.

Elbows are stocked in 45°, 90°, 120° and 180° of bend. 180's are the hardest to produce and have the greatest wall thinning because of the distance stretched around the bend. Our standard thickness is 16 gauge (.065"). Other walls available are 20 gauge (.035") 18 gauge (.049") and 14 gauge (.083"). Standard elbows usually have 6" straight leg lengths.

Remember to allow for thinning in the bend. The stretching of the material during bending causes the outside of the bend to become thinner, while the inside can become thicker. This is due to the natural flow of material.

standard 90 degree bent elbows standard 180 degree bent elbows

spacer

Custom Elbows
prebent elbow diagram Can be made in almost any wall and type of material.
1) Choose Material
2) Choose Diameter
3) Beginning Wall Thickness
4) Centerline Radius (See Bend Die List [.pdf])
5) Degree of Bend
6) Straight Legs After Bend
7) Quantity   

spacer
While Woolf Aircraft stocks 1200 various bent elbows for immediate delivery, we are also a custom fabrication job shop ready to make almost any assembly you require. With over 400 bend dies available, more than just about anybody in our industry, we can use over 30 power benders, 10 hand benders or specifically build benders for quick delivery. Add our tubing in stock to the thousands available from distributors, and you can see why we are able to supply most any need. We can also bend materials you supply to us. When supplying tubing, please let us know so we can verify that it is bendable, and insure that there is sufficient length for bend grip and machine set ups.


Click here to download a RFQ Form
spacer
transitionsTransitions

Many high performance and custom applications require a transition from one size tubing to another. Transitions come in one of two ways: a 30° conical transition for the smoothest, aerodynamic change or a 90° step transition/expansion for a more abrupt change in the shortest distance possible. Woolf Aircraft stocks conical transitions in 1-1/2”-3” and 3”-5” sizes in stainless and aluminum. Step transitions/expansions are stocked in various sizes. Give us a call to learn more about this and for sizes in your application.