They are equipped with 2 hexagon socket set screws for N2,5 allen key.
Steel pipe unions are used to replace the classic union fittingss too large to be discreet.
Entirely handmade in our workshop.
Appearance of steel tubes
- Standard: Smooth, with a certain sheen as with unfinished steel. Depending on manufacture, the color can vary from light gray to black gray.
- Shot-blasted:Uniform colour that is close to the umber grey "RAL7022" with slight nuances and a slight texture that blends perfectly with the colour of the plumbing fittings cast iron and shot blasted steel.
Our black steel tubes are manufactured to the following tolerances:
| Size | Thread | Length |
|---|---|---|
| 1/2″ | 16mm +-1mm | +-1mm |
| 3/4″ | 17mm +-1mm | +-1mm |
| 1″ | 19mm +-1mm | +-1mm |
As they are raw steel there is a thin film of oil to protect them from corrosion.
This oil film can be removed with our metal cleaner or with any other degreaser (e.g. brake cleaner).
Then you can protect it with a aerosol varnish of a aerosol paint or with linseed oil baked into a very thin layer.
Feel free to read our FAQ.
Please note that during the production of the custom-made tubes 3 marks in the form of small dots of a length of +-4cm are visible due to the holding of the tube in the threading machine.
Black threaded steel pipes (threaded nipple) are designed to be screwed to any type of fittings Female in cast iron or steel of the same size.
You can then design furniture legs, tablesBookcases, shelves, to your measure for a perfect industrial decor.
Black steel double-threaded custom-made nipple tubes are welded steel tubes. S195T / P235 iso medium to DIN EN10255 / EN10217 with BSP tapered gas thread to DIN EN 10226 at both ends.
Size matching
- 3/8″ → 12/17 → Diameter 17.2mm → Thickness 2.3mm
- 1/2″ → 15/21 → Diameter 21.3mm → Thickness 2.6mm
- 3/4″ → 20/27 → Diameter 26.9mm → Thickness 2.6mm
- 1″ → 26/34 → Diameter 33.7mm → Thickness 3.2mm
- 1 1/4″ → 33/42 → Diameter 42.4mm → Thickness 3.2mm
For more details you can read our FAQs
- Choice and dimensions of black and galvanised steel pipes for decorative plumbing fittings
- How do I mount it?
- Which look should I choose for my "standard" black or "umber grey shot blasted" steel tubes?
- Do I have to treat my tubes or can I leave them as they are?
- How to apply a finish?
Thread type:
The thread type is BSP (British Standard Pipe) Whitworth.
The female thread type on the classic threaded fittings is BSPT (tapered), on the deco threaded fittings is BSPP (straight) and the male thread is BSPT tapered DIN EN 10226 formerly ISO 7-1.
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