Elbows for pipes

About elbows for Ø42.4 mm tube

An elbow changes the direction of the tube. Ø42.4 mm is the base size of the Strofix system, which is why the widest choice sits here – by angle, by shape and by mounting method.

The shape difference is not only aesthetic. A flush elbow makes a sharp transition, a rounded one a soft transition; if the elbow is at hand height on a handrail, a sharp transition is felt every time a hand slides over it.

The range covers weld-on elbows at 90°, flush, round and rounded elbows at 90° and 135°, and adjustable elbows for 0–70°, 90–180° and a wide range.

Finishes are satin, polished and raw; raw applies to the weld-on versions.

The choice depends on the angle, on whether the elbow is at hand height, and on whether it will be welded.

How to choose an elbow for tube

1. Angle: 90°, 135° or adjustable

90° suits rectangular terraces and balconies; 135° suits chamfered corners and polygonal plans.

Adjustable elbows are set on site. The 0–70° elbow covers shallow and acute angles such as a stair pitch, the 90–180° elbow covers obtuse corners up to a straight line, and the wide-range model, marked 360°, covers the widest span at H 47 mm.

2. Shape: flush, round or rounded

The flush elbow is the lowest and least noticeable.

Round and rounded elbows make a flowing transition. For a handrail people actually hold, choose the rounded one.

3. Glued-in or weld-on

A glued-in flush elbow goes into the tube ends and is fixed with adhesive – no welding and no finish to restore on site.

The weld-on elbow is welded between two tube ends and becomes almost invisible once the seam is dressed. It is also supplied raw, since the finish has to be restored anyway.

4. Steel grade and finish

The range is mainly AISI 304; some elbows are also available in AISI 316 for coastal sites and pool surrounds.

Polished versions suit assemblies where the tube and posts are polished too. Do not mix a polished elbow with satin tube – the change at the joint is conspicuous.