About /

Grotnes Steel has for 50 years offered standard workshop services alongside specialist services not often found in traditional workshops in Norway or the rest of Europe.

grotnes steel ring rolling

About us

BRN NO 937 585 543 VAT

Established: 1969

Where to find us: Mo Industrial Park (MIP), close to the centre of Mo i Rana, 300 m from the harbour

Total employees: 11

Production area: 3,000 m²

Share capital: MNOK 5


  • MNOK 25,8 (2017)
  • MNOK 40,5 (2018)
  • MNOK 51,8 (2019)

Owners: Miras Industries AS

Manufacturing equipment:

  • 6 CNC-controlled cutting tables
  • 2 PLC-controlled normalising furnaces (18 m(c)˜)
  • 1 plate roller, up to 150 mm (the plates can be heat-rolled, max. 1,100 °C)
  • Welding equipment for manual and mechanical welding

Crane capacities: 3 x 40 tonnes, 1 x 20 tonnes

Certifications: ISO 9001, 14001, BS OHSAS 18001, Achilles

Gates: 4 The largest is 7 m (W) x 8 m (H)

  • Our manufacturing process is BV- and DNV-approved
  • All welders are certified
  • Technical welding management, IWE (International Welding Engineers)
  • Welding Inspector, EWIE (European Welding Inspection Engineer)
  • DNV-approved welding procedures up to 600 mm material thickness
  • Shape-cutting with tolerances up to 1,500 mm thickness
  • Multi-level cutting of products for concrete/forging moulds
  • Source materials in accordance with individual specification

The products are normalised after cutting. This prevents tempered zones in the cut surface, and results in a highly malleable material. Our TTSTE 355 Z3 steel is the product of a long-standing and successful partnership with the largest suppliers to the Norwegian offshore industry.

We constantly maintain an inventory of steel plates of 1,000 to 1,500 tonnes, with thicknesses of 80 to 720 mm. We also have or can procure forged shafts up to 1,200 mm in diameter.