Mannesmann Stainless Tubes
 | |
| ISIN | 🆔 |
|---|---|
| Industry | conglomerate |
| Founded 📆 | as Mannesmann 16 July 1890[1] |
| Founder 👔 | Reinhard and Max Mannesmann |
| Headquarters 🏙️ | , Mülheim an der Ruhr , Germany |
Area served 🗺️ | |
| Products 📟 | Stainless steel and Nickel alloy-based pipes and tubes |
| Members | |
Number of employees | |
| 🌐 Website | https://www.mannesmann-stainless-tubes.com/ |
| 📇 Address | |
| 📞 telephone | |
Mannesmann Stainless Tubes is a leading, global manufacturer of stainless steel and nickel alloy-based pipes and tubes.
Headquarters is in Mülheim an der Ruhr, a city in the metropolitan area of North Rhine-Westphalia in Germany, located in the Rhine-Ruhr Valley between Duisburg, Essen, Dortmund and Düsseldorf.
Principle manufacturing locations are in Remscheid, Germany; Montbard and Issoudoun, France; Costa Volpino, Italy and Houston, USA.
Part of the Salzgitter AG Group Archived 2013-07-11 at the Wayback Machine
History
Timeline
In 1994 the merger of the stainless steel divisions of Mannesmann Group (Germany), Dalmine Group (Italy) and Vallourec Group (France) under the name ‘DMV Stainless’ created the foundations of today’s organisation.[2]
In 2008 the name was changed from DMV Stainless to Salzgitter Mannesmann Stainless Tubes and in 2017 to Mannesmann Stainless Tubes.
Principle manufacturing locations are in Remscheid, Germany; Montbard and Issoudoun, France; Costa Volpino, Italy and Houston, USA.
In 2018 the acquisition of French company SOTEP based in Issoudun, France brought additional specialisation in precision seamless stainless steel and nickel alloys tubes.[3]
Mannesmann Brothers
The Remscheid, Germany manufacturing location was the founding place where the German brothers Reinhard (1856–1922) and Max Mannesmann (1857–1915) were granted in 1886 a patent for their invention of seamless steel tubes by the cross rolling and hot pilgering process.[4]
The same production site that was used by Reinhard and Max is today, a manufacturing centre of excellence for seamless stainless steel and nickel alloy tubes and pipes.
Mannesmann - Telecommunications
In 1990, following the liberalization of the German telecommunications market, Mannesmann set up a new business sector and established Germany's first cellular network carrier in private ownership known as D2 Mannesmann. The network company was called Mannesmann Mobilfunk GmbH. It was the main competitor to Germany's incumbent carrier, Deutsche Telekom's T-Mobile, also known as D1. Additionally, Mannesmann extended its telecommunications division with integrated services covering mobile and fixed network telephony, Internet, and TeleCommerce with companies in Germany, Italy, UK and Austria[5]
[6]=== Vodafone and aftermath ===
The Europe-wide telecommunication branch of Mannesmann was extraordinarily successful and so in 1999 the Mannesmann Group hatched a plan to spin off the other divisions. Through a stock exchange flotation under the name of Mannesmann Atecs AG, these industrial divisions were to be combined in a separate enterprise that would be one of the largest companies listed in the German stock index DAX. However, before these plans could materialize, a historic takeover battle lasting several months ended with the acquisition of Mannesmann by the British mobile phone company Vodafone in 2000. On 4 February 2000 Mannesmann's supervisory board eventually agreed to a takeover price of 190 billion €, which was the largest takeover price ever paid until that date and still is the highest. The telecommunications division of Mannesmann was subsequently incorporated into the Vodafone Group. The other divisions were resold to various companies soon after the deal. The origins of Mannesmann, the pipe production activities of Mannesmannröhren-Werke AG, were sold to Salzgitter AG along with the brand name Mannesmann.[7]
Product Range
Grades
Manufacturing range includes:
- Stainless Steel austenitic
- Martensitic
- Duplex grades
- Nickel alloys & superalloys
Dimensions
With a dimensional range from 1.6 mm ( 1/16”) to 280 mm (11.02”).
- Small instrumentation tubing to large pipe sizes including outside diameters from 6 to 273 mm (from 0.24 up to 10.752 inches) and with wall thicknesses from 0.5 up to 50 mm (from 0.02 up to 1.97 inches)
- Materials from standard austenitic stainless, duplex and super-duplex steels to highly sophisticated nickel-based alloys – this variety offers highest corrosion resistance, heat resistance and/or high-temperature, high-strength materials.
Markets
Oil & Gas
OCTG tubing & casing, Umbilical, Subsea, Flowlines tubes, Heat Exchanger & Instrumentation tubing.
Powergen
Boiler Tubes, Heat Exchanger Tubes - straight, ‘U’ bent, Instrumentation tubing. Conventional Power: Advanced USC. Nuclear Power: fusion and fission. Renewable: Solar, Hydrogen,
Aerospace
Airframe hydraulic control, Actuation systems and flow measurement, Engine fuel systems, air bleed instrumentation tubes and structural tubes and profiles.
Medical
Exacting raw materials for Cardio & Trauma applications and surgical equipment tubes.
General Engineering
Mechanical tubing: Hollow Bar. Heat Exchanger Tubes - straight, ‘U’ bent. Instrumentation & Process control Profiles.
Production Techniques
The company manufactures its products using the following techniques:
Hot Extrusion
Hot Extrusion is the manufacturing process for hot finished pipes, tubes, hollow bars and re-draw hollow bars in a range of nickel-based and stainless steel alloys. With dimensions that go from 32 up to 273 mm outside diameters (1.26 up to 10.752 inches) and wall thicknesses from 3.4 up to 50 mm (0.134 up to 1.97 inches).
Cold Pilgering
Cold Pilgering is the preferred production method for cold finished, high alloy stainless steel, seamless and nickel-based alloy pipes and tubes. Providing close tolerances, high forming rate and good productivity yields. Mannesmann Stainless Tubes’ production range covers outside diameters from 6 up to 219.1 mm (0.24 up to 8.63 inches) and wall thicknesses from 0.5 up to 30 mm (0.02 up to 1.18 inches).
Cold Drawing
This production process is ideal for achieving very close tolerance ranges, ideally for outside diameters. As well, the cold drawing process is a perfect choice when low forming ratio is needed.
Quality Management
Mannesmann Stainless Tubes has Quality Management Systems, approved by some of the world’s leading organisations including ASME, ISO, TUV, DNV, JIS and Lloyd’s Register.
References
- ↑ Horst, Wessel (2000). "Mannesmann 1890: A European Enterprise with an International Perspective". The Journal of European Economic History. 29: 335–356.
- ↑ "History of Mannesmann AG – FundingUniverse". Fundinguniverse.com. Retrieved 1 June 2018.
- ↑ "Mannesman Stainless Tubes: ready for the industrial revolution". Stainless Steel World. KCI Media Group. Retrieved March 2022. Check date values in:
|access-date=(help) - ↑ "Reinhard und Max Mannesmann – Salzgitter AG". geschichte.salzgitter-ag.com. Retrieved 3 April 2022.
- ↑ "Profile: Mannesmann - turning pipes into phones". BBC. January 21, 2000.
- ↑ Welle, Deutsche. "Mannesmann; the mother of all takeovers". Retrieved 3 February 2010.
- ↑ "Vodafone Airtouch confirms sales of Mannesmann tubes". vodafone.com. Vodafone.com. Archived from the original on 19 August 2016. Retrieved 19 August 2016.CS1 maint: Unfit url (link)
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