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Salzgitter Mannesmann Line Pipe - Your specialist for HFI Welded Steel Pipe
Salzgitter Mannesmann Line Pipe - Your worldwide partner for HFI (High-Frequency-Inductive) longitudinally welded steel pipe at the forefront of technology. This includes oil and gas line pipe, pipe for drinking water and sewage systems, tubes for machinery and plant construction as well as oilfield tubes, pipe for long-distance heating systems and structural tubes. Our manufacturing program is rounded off by a wide range of fittings, pipe accessories and project related services.
We offer:
- over 100 years experience in pipe production
- expertise covering the complete value-added chain at both locations, from steel production to pipe coating
- a wide range of dimensions and material grades
- short delivery periods through optimized rolling schedules
- heightened flexibility through two production locations
- optimized delivery capacity through targeted stock management
- technical advice from the planning desk to the construction site
- a worldwide sales network
HFI welded steel pipe has been used successfully for decades in technically demanding applications and severe service conditions. Line pipe designed for high operating pressures ensures reliable transportation and distribution of gas, oil, water and other media. And without welded steel pipe, the exploration and extraction of essential resources would be impossible. Even in machinery and plant construction, welded steel pipe has established itself as an indispensable structural element.
Innovative research and ongoing developments have made SALZGITTER MANNESMANN LINE PIPE a byword for highest standards and comprehensive expertise in HFI welding technology. From our Hamm and Siegen locations in the industrial heartland of Germany, we maintain close contact with national and international institutes, notably the Salzgitter Mannesmann research centre, because we aim not only to continuously improve the HFI welding process but also to promote and support new product developments for the benefit of our customers.
Our development efforts focus especially on the quality and safety of welded pipe. Starting material inspection, 100 percent production monitoring using ultra-modern test methods and equipment, as well as final inspection at both works ensure that the properties of our steel pipes meet the most exacting requirements. This claim is backed by decades of experience in our own state-of-the-art laboratories and it has top priority in the production of HFI-welded steel pipe.
'Made in Germany' at its best!
As part of the Tubes division within Salzgitter AG, SALZGITTER MANNESMANN LINE PIPE is committed to excellence and a can-do approach to customer needs and services - a reliable partner in present and future projects.
Products
The main products in our manufacturing program are steel line pipes for gas, oil and water as well as oilfield tubes, commercial tubes for general applications, structural tubes, and steel pipes for district heating pipelines.
Our wide range of steel grades, outside diameters of 33.7 to 610 mm (1.5" to 24") and pipe wall thicknesses of 3.6mm to 25.4 mm (.142" – 1.000") can be relied on for the optimum solution both technically and economically where HFI welded steel pipe is concerned.
Open the Manufacturing Program - Steel pipe dimensions as a PDF-document.
We excel in meeting special requirements, such as high-grade steels and pipe wall thicknesses of up to 25.4mm (1.000") for the offshore sector. And the fact that our pipes come in mill lengths of up to 18 m translates into significant savings for you in the cost of pipe laying, field welding and field coating.
We also offer a full range of coatings and linings to ensure the highest possible level of pipeline safety. Coatings protect the pipe from corrosion and mechanical damage. The purpose of linings is to minimize frictional resistance on the inside wall of gas line pipe, while water and sewer pipes are mainly lined as a means of effective corrosion protection.
Our range of coatings for buried steel pipelines comprises:
- polyethylene coatings
- polypropylene coatings
- epoxy resin coatings (Fusion Bonded Epoxy FBE)
All of the above coatings are compatible with cathodic corrosion protection systems.
In the case of high mechanical loads and special applications in horizontal wells, line pipe can be additionally protected with:
- fiber cement mortar coatings (FCM/FCM-S)
- plastic coatings with an integrated rib profile
Linings are available in the form of:
- cement mortar linings for water and sewer pipes
- epoxy lining (flow coat) to reduce friction in high-pressure steel pipelines
Other coatings and linings are of course also available on request, e.g. for above-ground pipelines.
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