Welcome to Steel-Line

You don’t need nerves of steel with us

We are steel traders with a passion.

Practical professionals with power and esprit, commitment and competence. In the competitive market, our team discovers new ways to ensure you always get your money’s worth. You have your head free for your business, we do everything else.

It is moving to achieve the optimum.

We are measured by our results. This is a challenge that begins anew every day. Because only when our services fit, we have successfully completed our task. That’s why we pull out all the stops when it comes to your advantage.

Our products

That’s why Steel-Line

Regardless of the size of the order, at Steel Line every customer has the same priority.
Where others only supply pipes, you can also get bends, fittings, flanges, sheets and also the matching rods from us.

On the market for more than 40 years

Exceptional service

Extensive assortment

Fast delivery times

Special steels for boiler & power plant construction

Best support & accessibility


The beginning

The history of our company begins in 1982 with the establishment of Petrotech – Petrochemical Plants. In the beginning, the company sold pipeline valves for power plants, heating plants, chemical plants and as well as for the gas and oil industries. Already at that time the focus was on the Export, mainly to Hungary and Poland, and this was soon followed by the expansion of activities to include trade in steel products such as pipes, fittings and sheet metal.

From 1989 to 1999, 50% of Petrotech was owned by DKG East RT., the largest Hungarian petroleum industry valve manufacturer at that time.

Into the future with Steel Line

In 2000, Steel Line, under the leadership of Karl Kainz, acquired 100% of Petrotech. Under this new management, Petrotech’s steel trading activities were stepped up further – with success, as the company quickly established its own sales offices in Germany, Poland and Turkey.

In 2005, Steel Line and Petrotech finally merged into one company and the headquarters were moved to Vienna-Floridsdorf. Due to the continued success, a further representative office was opened in Romania in 2010.