Heavy steel plates with on-site processing and multimodal delivery
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Carbon, fine-grain and weathering plate for fabricated structures, bridges and infrastructure.
Heavy plates for wind towers, monopiles, transition pieces and other offshore structures.
Heavy and fine-grain plate for boilers, vessels, storage tanks and transport equipment.
The on-site service centre processes plates into shapes and prepared components.
Sorted plate deliveries coordinated through the mill harbour, road and railway links.
Support from grade and delivery-condition selection through processing files and documentation.
Normal- and higher-strength plate families for shipbuilding and marine structures.
Normalising, levelling and protective surface preparation within plate supply.
Bending within the plate-processing offer.
Oxy and milled edge preparation for subsequent fabrication.
Drilling as part of plate prefabrication.
Oxy-fuel cutting of rings, discs, strips and other plate shapes.
Surface cleaning and temporary corrosion protection.
Welding as an additional plate-processing service.
Door-to-door logistics for heavy plates.
DanSteel joined the PISA offshore-wind foundation research programme in May 2014 and supplied 200 tonnes of high-strength plate in special dimensions for experimental foundations. The 2017 company account names DONG Energy and Bladt Industries as fellow Danish participants; it does not identify a purchasing customer.
ISO 9001:2015
DNV certificate for NLMK DanSteel A/S, Havnevej 33, Frederiksværk, covering design, production and sale of heavy plates. Issued 19 December 2024, valid 1 January 2025 to 31 December 2027.
ISO 14001:2015
DNV certificate for NLMK DanSteel A/S, Havnevej 33, Frederiksværk, covering design, production and sale of heavy plates. Issued 19 December 2024, valid 1 January 2025 to 31 December 2027.
DS/ISO 45001:2018
DNV certificate for NLMK DanSteel A/S, Havnevej 33, Frederiksværk, covering design, production and sale of heavy plates. Issued 19 December 2024, valid 1 January 2025 to 31 December 2027. The certificate also cites Executive Order no. 1409 of 26 September 2020.
ISO 50001:2018
DNV certificate for NLMK DanSteel A/S, Havnevej 33, Frederiksværk, covering design, production and sale of heavy plates. Issued 19 December 2024, valid 1 January 2025 to 31 December 2027.
Historical PED and AD 2000 material-manufacturer approval
TÜV Rheinland certificate 01 202 BE/Q-14 0142 covers carbon-manganese, low-alloy and alloy plate under Directive 2014/68/EU, EN 764-4 and AD 2000-W0, with grade-specific annexes. Issued 27 February 2021; expired 31 August 2023.
Historical EN 10025 factory production control
TÜV Nord 0045-CPR-0554 covers hot-rolled structural plate under EN 10025-1:2004. The complete document includes grade and dimensional restrictions. Issued 12 June 2020; expired 31 August 2025.
Historical EN 1090 thermal-cutting approval
Nordcert 1505-CPR-CS1184 covers EN 1090-1:2009+A1:2011 thermal cutting, material groups 1, 2 and 3, execution classes EXC1 to EXC4 and CE methods 1 and 3a. It expressly excludes welding. Valid 4 September 2019 to 3 September 2024; expired.
Historical RMRS hull-plate approvals
Certificates 16.10038.262 and 16.10039.262 cover rolled hull structural steels within the attached grade, thickness and delivery-condition schedules. Issued 22 April 2016; expired 22 April 2021.
Historical RINA material-manufacturer approval
FAB014519XD covers normal- and higher-strength hull steel plates and specified welded-structure grades with annex restrictions. Issued 16 April 2019; expired 16 November 2021.
Historical Lloyd’s Register steel-plate approval
MD00/0403/0010/1 covers specified normal- and higher-strength plates and boiler/pressure-vessel grades, including the appended thickness, delivery-condition and Z-quality provisions. Issued 4 September 2018; expired 3 January 2021.
Historical DNV GL rolled-steel approval
AMMM00000X6 revision 8 covers normal-, high- and extra-high-strength rolled plate and Z-grade steels subject to the four-page particulars. Issued 14 January 2021; expired 31 August 2022.
Historical Bureau Veritas hull-plate approvals
The seven-page bundle contains higher-strength, normal-strength and thermomechanically rolled hull-plate scopes with grade and thickness conditions. Expiry dates are 20 December 2023, 21 November 2023 and 29 November 2021 respectively. These are historical approvals.
Historical ABS steel-mill approval extension
STML-T1743816-4, dated 5 June 2019, extends specified rolled-plate grade, thickness and delivery-condition approvals. It calls for renewal on a five-year cycle; no current renewal is included in the reviewed document.
Historical Deutsche Bahn heavy-plate qualification
Manufacturer qualification under DBS 918002-02 covers hot rolling and heat treatment, with specified S355/S460 grades and thickness limits and an additional factory-production-control scope requirement. Dated 12 February 2021; expired 31 January 2023.
EN 3834
Welding-quality approval stated for Steel Service Center add-on services. The part number, issuer and validity dates are unspecified.
EcoVadis Gold 2023
Gold sustainability assessment recognition for 2023.
NLMK DanSteel manufactures hot-rolled heavy steel plates in Frederiksværk for wind structures, shipbuilding, bridges, construction, pressure equipment and transport. The mill supplies different rolling and heat-treatment conditions, with grade and dimensions selected for the application. Its Steel Service Center adds cutting, edge preparation and other prefabrication, supported by technical collaboration, documentation and delivery by sea, rail or road.
Metal plates
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Updated Sep 13, 2026
