Trading and processing of steel plates in around 30 special grades with 20,000 tonnes of stock
Naumann Stahl GmbH & Co. KG
Neuss (head office and warehouse) · Stuttgart · Bilbao · KrakówNew on Amplifa
About Naumann Stahl
Naumann Stahl is a family-owned, independent steel trading company specialising in plates in special grades. At its head office in Neuss, around 20,000 tonnes of plates in more than 30 grades are stored in 12,200 m² of covered hall space: general structural steels, fine-grained structural steels for steel and pressure vessel construction, heat-resistant steels to EN and ASME/ASTM standards, quenched and tempered and case-hardening steels, hard manganese steel as well as wear-resistant and high-strength steels. The dimension range extends from cold-rolled sheet from 16 kg piece weight up to large-format quarto plates of up to 28 tonnes. In addition to trading, the company offers processing on block band saws into flat and wide flat steel up to 250 mm thickness and 6,000 mm length, complemented by in-house packaging, material testing, surface treatment (blasting, priming, pickling, oiling) and worldwide logistics. Customers come in particular from vessel, apparatus and mechanical engineering, structural steel construction, tool and mould making as well as from steel trading. Sales offices in Stuttgart, Bilbao and Kraków serve customers in Europe and beyond.
- Site
- Neuss
- Processes
- Plate trading / supply of steel plates in special grades (stock programme), Sawn cut-to-size / contract sawing of plates into flat and wide flat steel (block band saws), Priming (e.g. 1-component zinc phosphate, shop primer), Plate pickling (contract pickling in acid bath, hydrochloric and sulphuric acid, incl. passivation), Oiling (corrosion protection oil), PWHT process (Post Weld Heat Treatment) via partners, Heat treatment via partners (stress relieving, quenching and tempering, straightening), Logistics solutions (road, sea and air freight, worldwide)
- Materials
- S355J2+N, S355J2C+N, E335 (St60-2), E360 (St70-2), C15, C15E, 16MnCr5, 20MnCr5
- Certificates
- ISO 9001:2015
- Founded
- 1960
- Industries
- Vessel Construction, Apparatus Engineering, Mechanical Engineering, Structural Steel Construction, Pressure Vessel Construction, Tool Making
- 01
Procurement of plates from European steel mills
- 02
Storage in Neuss (20,000 t)
- 03
Sawn cut-to-size on block band saws
- 04
Material testing / surface treatment with partners
- 05
In-house packaging
- 06
Worldwide delivery by road, sea and air freight
Materials and Stock Programme
General structural steel
Base steel for structural steel construction, vessel and mechanical engineering in thicknesses of 3 to 200 mm.
Pressure vessel steel
Fine-grained structural steel for pressure vessel and apparatus engineering.
Heat-resistant steel (EN)
Heat-resistant plates for pressure-bearing components at elevated temperatures.
Heat-resistant plates ASME/ASTM
Plates to US standard for vessel and plant construction.
Hard manganese steel
Highly wear-resistant manganese hard steel, a focus of the stock programme.
High-strength fine-grained structural steel
High-strength steel for wear-optimised and weight-optimised designs.
Alloyed quenched and tempered steel
Also supplied heat-treated by the mill (+QT), among other things for tool and injection mould making.
Case-hardening steel
Case-hardening steel for tools, mould making and machine parts.
Unalloyed quenched and tempered steel
Versatile quenched and tempered steel, also available as sawn cut-to-size.
Fine-grained structural steel, cold toughness
For pressure vessel and structural steel applications with increased requirements.
Locations
Neuss
DEHead office and warehouse
- Part weight / size
- Sheet from 16 kg up to quarto plates of 28 t
- Lot size
- Small lots to large series
- Materials
- Structural steels, fine-grained structural steels, heat-resistant steels, quenched and tempered and case-hardening
- KASTO BBS 560/1060 x 6000 mm block band saw
- KASTO U 6x16 x 4000 mm block band saw
- KASTO U 6x16 x 6000 mm block band saw
- KASTOwin A 8.6 fully automatic band saw
Stuttgart
DESales office for Baden-Württemberg
Bilbao
ESSales office for Spain, Portugal and territories outside Europe
Kraków
PLSales office for Poland
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Plate trading / supply of steel plates in special grades (stock programme)Engineering | – | – | – | – | General structural steels, Fine-grained structural steels, Hard manganese steel, Heat-resistant steels, Quenched and tempered steels, Case-hardening steels, Wear-resistant and high-strength steels |
| Sawn cut-to-size / contract sawing of plates into flat and wide flat steel (block band saws)Machining | minimal tolerance deviation | 6,000 mm × 250 mm (thickness) | – | small quantities – large series | 42CrMo4, 16MnCr5, C45, C60, S355J2+N, 42CrMo4+QT, further stock grades |
| Surface | – | 3000 mm | – | – | Steel plates |
| Priming (e.g. 1-component zinc phosphate, shop primer)Surface | – | – | – | – | Steel plates |
| Plate pickling (contract pickling in acid bath, hydrochloric and sulphuric acid, incl. passivation)Surface | – | 3000 mm × 1500 mm | – | – | Steel plates |
| Oiling (corrosion protection oil)Surface | – | – | – | – | Steel plates |
| Testing | – | – | – | – | Steel plates |
| PWHT process (Post Weld Heat Treatment) via partnersHeat Treatment | – | – | – | – | Steel |
| Heat treatment via partners (stress relieving, quenching and tempering, straightening)Heat Treatment | – | – | – | – | Steel |
| Assembly | – | – | – | – | – |
| Logistics solutions (road, sea and air freight, worldwide)Engineering | – | – | – | – | – |
4 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Block band saw | KASTO BBS 560/1060 x 6000mm | 1 | 6000 mm | – | Neuss |
| Block band saw | KASTO U 6x16 x 4000mm | 1 | 4000 mm | – | Neuss |
| Block band saw | KASTO U 6x16 x 6000mm | 1 | 6000 mm | – | Neuss |
| Fully automatic band saw | KASTO KASTOwin A 8.6 | 1 | – | – | Neuss |
Additional services
Quality
Naumann Stahl has been certified to ISO 9001:2015 by DNV since September 2018. Material tests (ultrasonic testing to EN 10160 or ASTM A435/A578, spectral analysis, tensile, impact and hardness tests, ABV to SEP 1390) are carried out several times a week with regional testing laboratories.
| Evidence | Neuss |
|---|---|
| ISO 9001:2015 |
History
- 1960
Founded on 14.01.1960 by Artur Naumann as Artur Naumann Stahl GmbH in Düsseldorf
- 1963
Lease of the property in Düsseldorf-Oberkassel at the freight station
- 1969
Conversion into a public limited company (Aktiengesellschaft)
- 1973
Foundation of the subsidiary in Stuttgart
- 1978
Relocation to Willstätterstraße in Düsseldorf
- 1988
Death of the company founder; daughter Haidi Salzmann takes over the company
- 1990/91
Expansion of the covered hall space to 7,200 m²
- 1993
Jost Salzmann (3rd generation) joins the company
- 1998
Jost Salzmann appointed to the executive board
- 2005
Opening of the sales office in Bilbao
- 2014
Opening of the sales office in Kraków; decision to relocate to Neuss
- 2015
Michael Halm becomes a further member of the executive board
- 2017
Purchase of the property and new building in Neuss
- 2018
Relocation to Neuss and start of warehouse operations; ISO-9001:2015 certification by DNV
- 2019
First trade fair appearance at Blechexpo in Stuttgart
- 2020
60th anniversary; merger into Naumann Stahl GmbH & Co. KG; Julian Salzmann (4th generation) joins