Manufacturing, processing, and distribution of wide flat steel, forgings, as well as punching and burning parts.
WW-K Warmwalzwerk Königswinter GmbH
Königswinter (Ladestraße, 53639) · GermanyNew on Amplifa
About WW-K Warmwalzwerk Königswinter GmbH
WW-K Warmwalzwerk Königswinter GmbH is a specialized partner for the manufacturing, processing, and distribution of wide flat steel, forgings, and punching and burning parts. For around 50 years, the company has been producing and processing wide flat steel and rounds, since 2010 as an independent company. On its own rolling mill line, a production program is created with a very wide range of dimensions: standard dimensions from 240 to 860 mm width, 5 to 80 mm thickness, and 3000 to 20000 mm length; forgings are manufactured up to 30 tons. The value creation includes hot rolling, CNC-controlled burning cutting of formed parts and rounds, edge processing (rolling and milling edges), blasting according to DIN EN ISO 8501-1, and heat treatment in the rolling furnace (normalizing, stress-relieving annealing, hardening, tempering). The material program ranges from unalloyed structural steels to fine-grained, quenched-tempered, and weather-resistant structural steels, as well as tool and wear steels. Customers come from Automotive, steel trade, offshore, tool manufacturing, civil and structural engineering, as well as metal and mechanical engineering. The site is in Königswinter in North Rhine-Westphalia, with its own rail connection for shipping and logistics.
- Site
- Königswinter
- Processes
- Hot rolling of wide flat steel, Burning cutting of formed parts and rounds (CNC-controlled burning cutting machines), Edge processing (rolling edges, milling edges), Surface blasting according to DIN EN ISO 8501-1, Heat treatment: Normalizing, stress-relieving annealing, hardening, tempering, Material testing: Tensile test, hardness test, Charpy impact bending test down to -40 °C, bending, Manufacture of forgings (up to 30 tons), Production of rounds and punching parts for the automotive industry
- Materials
- S 235 JR, S 235 J0, S 235 J2, S 275 JR, S 275 J0, S 275 J2, S 355 JR, S 355 J0
- Certificates
- In-house testing laboratory (DKD-certified equipment), UT testing according to DIN EN 10160, Charpy impact bending test down to −40 °C, Blasting according to DIN EN ISO 8501-1
- Founded
- ca. 1975
- Industries
- Automotive, Steel trade, Offshore, Tool manufacturing, Civil and Structural Engineering, Metal and Mechanical Engineering
- 01
Hot rolling of wide flat steel and forgings
- 02
Burning cutting of formed parts and rounds
- 03
Edge processing (rolling and milling edges)
- 04
Surface blasting
- 05
Heat treatment
- 06
Material testing
- 07
Product consultation and shipping by freight forwarder or rail
Materials and Processes
Unalloyed Structural Steels (S 235 JR/J0/J2, S 275 JR/J0/J2, S 355 JR/J0/J2/K2)
Standard grades according to DIN EN 10025-2 for general steel construction and further processing applications.
Weather-resistant Structural Steels (S 355 J0 W, S 355 J2 W)
For offshore and construction applications with increased requirements for corrosion resistance according to DIN EN 10025-5.
Fine-grained Structural Steels (S 420 N, S 460 N)
High-strength grades according to DIN EN 10025-3 for load-bearing constructions.
Quenched-Tempered Steels (C 45, C 45 E, 42 CrMo 4, 42 CrMoS 4)
For heat-treated components with higher strength requirements according to DIN EN ISO 683.
Wear Steels (16 MnCr 5, C 10 E)
For wear-hardened components, e.g., in the automotive industry.
Tool Steels (B 1, C 45 U)
For tool manufacturing according to EN ISO 4957.
Wear Steel 1.8902
Special grade in the product program for specific customer requirements.
Sites
Königswinter
DEProduction and Distribution (Rolling Mill, Loading Street)
- Part weight / size
- Forgings up to 30 t; Sheet thickness 5–80 mm
- Lot size
- including small batch sizes
- Materials
- Structural steels, fine-grained structural steels, quenched-tempered steels, weather-resistant structural steels, tool
- Wide flat steel rolling mill
- CNC-controlled burning cutting machines
- Rolling furnace (heat treatment)
- Blasting plant
- Processing center for sample production (material testing laboratory)
- Own rail connection
Components and Products
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Hot rolling of wide flat steelForming | tightest tolerances | 20000 mm × 860 mm × 80 mm | – | small batch sizes | unalloyed structural steels, fine-grained structural steels, quenched-tempered steels, weather-resistant structural steels, tool steels, wear steels |
| Burning cutting of formed parts and rounds (CNC-controlled burning cutting machines)Machining | tightest tolerances | 10000 mm × 2000 mm × 80 mm | – | – | Steel |
| Edge processing (rolling edges, milling edges)Surface | – | 12500 mm × 1400 mm | – | – | Steel |
| Surface blasting according to DIN EN ISO 8501-1Surface | – | 12500 mm | – | – | Steel |
| Heat treatment: Normalizing, stress-relieving annealing, hardening, temperingHeat Treatment | – | 12500 mm × 1400 mm × 400 mm (stack height) | – | – | Steel |
| Material testing: Tensile test, hardness test, Charpy impact bending test down to -40 °C, bendingTesting | – | – | – | – | Steel |
| Manufacture of forgings (up to 30 tons)Forming | – | 18000 mm × 860 mm | 30 t | – | Steel |
| Production of rounds and punching parts for the automotive industryForming | – | – | – | – | Steel |
5 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Wide flat steel rolling mill | – | – | Width 240–860 mm, Thickness 5–80 mm, Length 3000–20000 mm | – | Königswinter |
| CNC-controlled burning cutting machines | – | – | Max length 10000 mm, Max width 2000 mm, Thickness 5–80 mm | – | Königswinter |
| Rolling furnace (heat treatment) | – | – | Max length 12500 mm, Max width 1400 mm, Max stack height 400 mm | – | Königswinter |
| Blasting plant | – | – | – | – | Königswinter |
| Processing center for sample production (material testing laboratory) | – | – | – | – | Königswinter |
Additional services
Quality and Testing
For quality assurance, WW-K performs tensile tests, hardness tests, Charpy impact bending tests down to −40 °C, bending tests, and UT testing according to DIN EN 10160 in its own laboratory with DKD-certified equipment. In its own processing center for sample production, further tests can be carried out on short notice with accredited external service providers.
| Evidence | Königswinter |
|---|---|
| In-house testing laboratory (DKD-certified equipment) | |
| UT testing according to DIN EN 10160 | |
| Charpy impact bending test down to −40 °C | |
| Blasting according to DIN EN ISO 8501-1 |
Company History
- ca. 1975
Start of production and processing of wide flat steel and rounds for the automotive industry (operating for 50 years according to the website).
- 2010
Continuation as an independent company, WW-K Warmwalzwerk Königswinter GmbH; supply to customers in automotive, steel trade, offshore, tool manufacturing, civil and structural engineering, as well as metal and mechanical engineering.