Urssa 300. High hardness steel

Soldering: Excellent
Folded: Good
Transformation: Good
Mechanization: Good

General specifications*

C 0,16-0,24. Mn 0,90-1,55. Si 0,20-0,50. P ≤ 0,035. S ≤ 0,025. Cr 0,80-1,20. Mo 0,15-0,50. Carbono equivalente 0,65.
Rm800/1.000 N/mm2. ReH≤ 550 N/mm2. A ≥ 14 %. Dureza Brinell 280/350 Hb. Factor antidesgaste60.


Production of pieces that require a good performance to abrasion and at the same time a good toughness. Like pots, high density blades, demolition clamps, pieces and plates for O.P equipment, etc.


It can be sold using the traditional system.
It is recommended to use dry metal flow adequate with the controlled hydrogen.
It is recommended to preheat the soldering zone, use Hilo Autrod 13-29 OK, basic Fluxocord 42/0841 TT Orlikon electrode or similar.


Warm way: should be hot forming and It is recommended to upright in the sense of lamination.


Good. Anneal or stabilized following oxycut recommended.

Thermal processes

Preheating670 - 700 ºCOven
Cementation900 - 950 ºCOil, air, salts
Normalize860 - 880 ºCAir
Warm up860 - 880 ºCOil or salts 200ºC
810 - 830 ºCOil or water
Drawn Stainless150 - 200 ºCAir

* To mechanize easily your pieces, ask for our stabilized heat softening treatment.

Stock Program

  • Large range of densities and formats from 6mm to 50mm.
  • Check our stock in the warehouse for each supply, as if delivery period for formats not available.
  • We also serve parts of sheet, cut in multiples lengths of 1000mm maintaining the width.
  • Oxycut of tailor-made pieces from 6-8 mm thickness.

* The specifications are illustrative. For each supply we offer a certificate with the datum of the shipment delivered.

Ask for information

Ask us for more information and advice on URSSA 300 Steel.

Request info


Oxycut on demand

Oxycut on demand

We cut your steel plates starting from your plans with absolute accuracy. An added service which allows collecting the product ready to be used.

Send us your project now.

Special steel plates

Special steel plates

Wide stock in steel plates with a thickness ranging from 1.5mm to 400mm and different types. Ask us for more information.

steel sheet corten

Steel sheet corten

Wide range of thicknesses, from 1mm to 80mm thickness. Oxcut custom made from 8mm to more than 500mm thick