Oyal Metal

Structural steel
Constructional Steel
During the last fifty years, engineers have demanded steels with higher and higher tensile strength, together with adequate ductility. This has been particularly so where lightness is desirable, as in the automobile and aircraft industries. The principal alloying elements added to steel in widely varying amounts either singly or in complex mixtures are nickel, chromium, manganese, molybdenum, vanadium, silicon and cobalt. In regard to alloying elements, these steels are known as low-alloyed steels and alloyed steels. These steels are used as case hardening steels, quenched&tempered steels, free-cutting steels, nitriding steels, surface hardening steels, spring steels and high-strength steels

Alloyed Steel

Alloyed steels contain carbon and a higher amount of alloying elements such as nickel, chromium, manganese, cobalt, niobium and vanadium. These elements are added to improve mechanical properties, ductility and other steel service properties.


Mrand Name Ravne No. W. No. DIN AISI
CT781 781 1.6587 17CrNiMo6 4820
ECN35 745 1.5752 14NiCr14 3310
PT181 181 1.7380 10CrMo9-10 A182 Grade F22
PO795 795 1.7734 - -
VCMO140 724 1.7225 42CrMo4 4142
VCMO150 725 1.7228 50CrMo4 4150

  Other alloyed steels from our production program (Steel Selector).

Low Alloyed Steel

Low-alloyed steels contain carbon and alloying elements such as nickel, chromium in molybdenum. Their amount is generally low, up to 2%. Primary function of these alloying elements are increasing hardenability in conjuction with optimizing mechanical propertis and ductility of these steels.

Brand Name Ravne No. W. No. DIN AISI
CK45 620 1.1191 Ck45 1045
ST52-3 562 1.0570 St52-3N -

  Other low-alloyed steels from our production program (Steel Selector).