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Cognor Spółka Akcyjna
Oddział HSJ w Stalowej Woli

37-450 Stalowa Wola,
ul. Kwiatkowskiego 1
tel. +48 510 223 527
tel. +48 15 813 51 84
fax: +48 15 844 23 06
e-mail:

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Steelworks

Our products are made of steel in a wide rangeof types and are used in many industries suchas the following: automotive, metallurgy, mining,railway, aviation, electrical machinery industryand other heavy machinery.

THE RANGE OF STEEL TYPES PRODUCED IN THE COMPANY INCLUDE:

  • Carburizing steels (e.g. 16MnCr5, 16MnCrS5, 20MnCr5, 20MnCrS5, 18CrMo4, 15NiCr13,  18CrNiMo7-6, 17CrNi6-6, 18CrMo4; C10E, C10R, C15E, C15R)
  • Quenched and tempered (e.g. C35, C35E, C35R, C45E,C45, C40E, C45R, C55E, C55R, C50E, C55, C60E,C60R, C60, 28Mn6; 37Cr4, 37CrS4, 41Cr4, 41CrS4,25CrMo4, 25CrMoS4, 34CrMo4, 34CrMoS4, 42CrMo4,42CrMoS4, 50CrMo4, 34CrNiMo6, 30CrNiMo8, 51CrV4)
  • With boron micro-alloy (e.g. 20MnB5, 30MnB5,38MnB5, 27MnCrB5-2, 15B28H, 15B30H, 15B37H), vanadium (e.g.. 21CrMoV5-7, 14MoV6-3, 30MnVS6), titanium, nitrogen, niobium.

These steels can be produced with an increased and controlled sulphur content to guarantee high machinability.

  • Nitriding steels (e.g. 31CrMoV9, 41CrAlMo7-10)
  • Free cutting steels (e.g. 10S20, 35S20, 46S20)
  • Corrosion resistant steels including:

- austenitic Cr-Ni, Cr-Ni-Ti, Cr-Ni-Mo-Ti, Cr-Ni-Si (e.g. X5CrNi18-10,X6CrNiTi18-10,X6CrNiMoTi17-12-2)

- fferritic (stainless and heat-resistant) with a chromium content of 25% and with additions of titanium or aluminum and silicon (e.g. X10CrAl7, X10CralSi7,X10CrAl13, X10CrAl18, X10CrAlSi18,X10CrAl24, X10CrAl24, X6Cr13, X12Cr13,X20Cr13, X30Cr13, X39Cr13, X6CrNiTi18,X5CrNi18-10)

  • carbon tool steels (e.g. N9E [~1.1830;~1.1625]) and alloy steels for cold work (e.g.90MnCrV8, NC6 [~1.2063], NCV1[~1.2235])and elevated temperatures (e.g. WCL[~1.2343], WNL [~1.2713])
  • bearing steels (e.g. 100Cr6)
  • spring steels (e.g. 51CrV4, 60SiCr7)
  • armour plate steel (e.g. ARMSTAL 500[30PM], ARMSTAL 450 [PM450], ARMSTAL550, 2P, 43PSM) and for the production ofartillery equipment (e.g. 32CrMoV12-10,S60, 45H1)
  • abrasion resistant steels (HARDSTAL 350 to500, Hadfield steel – X120Mn12)


Our steels are characterized by a low level of non-metallic inclusions and low content of oxygen and hydrogen, used for the manufacture of abrasion-resistant, especially loadbearing elements.

Scheme Steelworks
steel mill production process, steelworks, COS line, casting line, electric stove

 


STEELWORKS EQUIPMENT:

MELTING DIVISION
Electric arc  furnace – equipped with transformer of 20MVA  in capacity + 3 oxygen-gas burners, DPP system, eccentric bottom tapping (EBT), average heat weight 42 Mg, tap to tap 70 min.
Secondary metallurgy treatment:
- ladle furnaces: 3
- VD/VOD device –used for vacuum degassing steel(VD process) and for stainless steel production (VOD process)


CASTING DIVISION
CC LINE- two strands system (for billets of dimension 270x320mm) and one strand for slabs of dimensions (130 and 180)x800, 190x1030, mold of arched type, caster radius of 10,5m, device is equipped with electromagnetic stirrer (EMS). Ceramic submerged system is used for streamprotection.
Pouring into mold ingots:
- for rolling – 0.9 do 1.2 ton weight
- for open die forging –2.0 do 15 ton weight

CONDITIONING DIVISION
Grinding machine for ingots, billets and slabs grinding.

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