Manufacturer of bar steel and threaded steel with more than 2,500 steel alloys for industry and construction.
Stahlwerk Annahütte Max Aicher GmbH & Co. KG
Hammerau (near Ainring) · Parndorf · Fairfield, New JerseyNew on Amplifa
About Stahlwerk Annahütte
Stahlwerk Annahütte Max Aicher GmbH & Co. KG is a steel processing company based in Hammerau near Ainring in the Berchtesgadener Land district, whose origins date back to the year 1537. The plant produces round bar steel in the quality and engineering steel segment with a range of more than 2,500 steel alloys, as well as threaded steel in diameters from 12 to 75 mm and accessories for threaded and tension steel systems under the SAS brand. In the rolling mill, 6-metre-long raw continuous cast blooms are heated in a walking beam furnace and rolled, stretched and further processed into bar steel, threaded steel and tension steel. The bar steels are supplied, among others, to the automotive industry as well as the chain and tool industry, while threaded and tension steels are used in tensioning and reinforcement technology, anchor, formwork and geotechnical engineering, in tunnel construction and in prestressing technology. With around 600 employees and a production capacity of more than 240,000 tonnes of steel per year, the company supplies customers worldwide. The steelworks belongs to the Max Aicher Foundation.
- Site
- Hammerau, municipality of Ainring
- Processes
- Bar steel production (rolling of round steel in the quality and engineering steel segment), Threaded steel production, Rolling of bar steel, threaded steel and rebar steel from 6 m long raw continuous cast blooms, Stretching of threaded/tension steel (water-quenched and tempered, stretched and annealed), Finishing (adjustage) for anchor and tension steels as well as reinforcement technology products, System solutions for threaded steel systems (SAS), Accessories for threaded and tension steels, Reinforcement technology finishing (adjustage)
- Materials
- Quality and engineering steel (> 2,500 steel alloys), Threaded steel (Ø 12-75 mm), Rebar steel, Tension steel, Raw continuous cast blooms, Quality and engineering steel, Threaded steel (Ø 12–75 mm)
- Certificates
- ISO TS 16949:2002, ISO TS 16949:2002 (since 2003, successor to QS 9000/VDA 6.1)
- Founded
- 1537
- Employees
- approx. 680 (Wikiped
- Industries
- Automotive industry, Chain and tool industry, Tensioning and reinforcement technology, Anchor technology, Formwork technology, Geotechnical engineering
- 01
Heating of the 6 m long raw continuous cast blooms in the walking beam furnace
- 02
Rolling into bar steel, threaded steel and rebar steel (fine iron rolling mill)
- 03
Stretching and tempering of threaded and tension steel (water-quenched and
- 04
Finishing (adjustage) for anchor and tension steels as well as reinforcement
- 05
Manufacture of accessories for threaded and tension steel systems
- 06
Quality inspection (dynamic tests)
- 07
Distribution via own locations in Germany, Austria and the USA
Materials and Processes
Quality and engineering steel
Round bar steel made from more than 2,500 alloys, tailored to various applications and processing stages.
Threaded steel (Ø 12–75 mm)
Used in technical and civil engineering, tunnel construction, geotechnical engineering and prestressing technology.
Tension steel
Water-quenched and tempered, stretched and annealed tension steel for tensioning and anchor technology.
Rebar steel
Historically rolled rebar steel; rebar production at the Hammerau site was discontinued in 1984.
Locations
Hammerau (near Ainring)
DEMain plant: steel production, rolling mill, finishing (adjustage)
- Materials
- Quality and engineering steel, threaded steel Ø 12–75 mm, tension steel
- Walking beam furnace (45 t/h, 6 m raw continuous cast blooms)
- Fine iron rolling mill (fully continuous, since 1993)
- 2 stretching lines (since 1984)
- Schenck tensile testing machine 200 t for dynamic tests
- Factory railway
Fairfield, New Jersey
USSales location SAS Stressteel Inc.
Parndorf
ATSister plant, mat fabrication
- Materials
- Steel
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Bar steel production (rolling of round steel in the quality and engineering steel segment)Forming | – | – | – | – | more than 2,500 steel alloys, quality and engineering steel |
| Threaded steel productionForming | – | – | – | – | Steel |
| Rolling of bar steel, threaded steel and rebar steel from 6 m long raw continuous cast bloomsForming | – | 6 m (blooms) | – | – | Steel |
| Stretching of threaded/tension steel (water-quenched and tempered, stretched and annealed)Forming | – | – | – | – | Tension steel, Threaded steel |
| Finishing (adjustage) for anchor and tension steels as well as reinforcement technology productsAssembly | – | – | – | – | Anchor steel, Tension steel, Reinforcement steel |
5 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Walking beam furnace | – | – | 6 m long raw continuous cast blooms; 45 t/h (1982 unit) | – | Hammerau |
| Rolling mill / fine iron rolling mill | – | – | – | 1993 (voll | Hammerau |
| Stretching line | – | 2 | – | 1984 | Hammerau |
| Schenck tensile testing machine for dynamic tests | Schenck | 1 | 200 tonnes | 1984 | Hammerau |
| Factory railway | – | – | – | 1977 | Hammerau plant premises |
Additional services
Reference customers
Quality and Certification
Quality assurance includes dynamic tests on a 200-tonne Schenck tensile testing machine. Products for construction are supplied as CE-marked construction products.
| Evidence | Hammerau (near Ainring) |
|---|---|
| ISO TS 16949:2002 (since 2003, successor to QS 9000/VDA 6.1) |
History
- 1537
Prince-Archbishop Matthäus Lang grants documented permission on 2 October for the mining and processing of iron ore – the birth of the Annahütte.
- 1866
New sheet rolling mill in Hammerau.
- 1877
Larger rolling mill, turbine and cast welding furnace.
- 1906
Acquisition by the Princely Hohenzollern ironworks administration Laucherthal-Sigmaringen (1 August).
- 1932
Alfred Zeller takes over the 'Annahütte' once again.
- 1975
Max Aicher acquires the entire plant in November; renaming to 'Stahlwerk Annahütte Max Aicher GmbH & Co. KG'.
- 1976
Restart of the rolling mill with rebar steel production.
- 1977
Construction of a factory railway and several roads on the plant premises.
- 1982
Modernisation of the rolling line including a new walking beam furnace (45 t/h).
- 1983
Commissioning of the iron bending shop.
- 1984
Product expansion to threaded and tension steels; discontinuation of rebar steel production; commissioning of two stretching lines and the first finishing (adjustage) operations; installation of the 200-t Schenck tensile testing machine.
- 1986
Patent applications for tension steel production (water-quenched and tempered, stretched and annealed); first production of threaded formats with diameters of 40 and 50 mm.
- 1993
Commissioning of a fully continuous fine iron rolling mill.
- 1996
Establishment of the manufacture of accessories for threaded and tension steels.
- 1997
Relocation of mat fabrication to the Austrian sister plant in Parndorf.
- 2000
Construction of a finishing (adjustage) facility for reinforcement technology products.
- 2002
Foundation of the first sales location in the USA (SAS Stressteel Inc., Fairfield, New Jersey).
- 2003
Transition of the quality management system from QS 9000/VDA 6.1 to ISO TS 16949:2002.
- 2007
Expansion of US sales through the acquisition of AVAR Construction.
- 2026
The Science Based Targets initiative (SBTi) confirms the company's climate targets; use of the SAS SN anchors in the Kaprun power plant group.