Specification Armature A1 is produced with a diameter of 6 mt to 40 mm, made of steel grades 3SP, D16, and Stz (StZkp; StZps; StZsp;)
It is used in conditions requiring from it an increased value of tensile elongation, ductility and good tolerance to low temperatures
The use of class A1 is possible for welding of load-bearing structures, meshes.
Reinforcement A2 is produced with a diameter of 10 mm to 80 mm, made of steel grades: St5sp; St5ps; for class A2 with a diameter of 10mm to 40mm.
18G2S - for class A2 with a diameter of 40mm to 80mm. The scope of a rolling bar of class A2 differs little from the scope of class A1.
A3 fittings are produced with a diameter of 6 mt to 40 mm, made of steel grades: Stz, 25G2S, 35GS, A400, A500S.
The steel used for the manufacture of this class has good weldability.
This makes class Az rods suitable for the manufacture of reinforced concrete structures,