rebar, steel bar

Product Details

Rebars are classified based on a certain amount of their tensile strength, which is called the characteristic strength of the rebar. Rebars produced in Iran (according to the Russian standard) are divided into three general groups: type A-1 rebar, type A-2 rebar and type A-3 rebar. In the construction workshop, in terms of mechanical category or appearance, they are generally divided into four categories: A1, A2, A3 and A4. A1 rebars (soft without tread): The first group are A1 rebars, which are called 240F or 2400 resistance class, which are known as A11 or plain rebars, and there is no tread shape on them. The yield strength and tensile strength are 2400 and 3600 kg / cm2, respectively. A22 rebar (semi-rigid with simple tread): The next category is A2 rebars, which are ribbed and are classified in S340 category. In fact, this rebar is an axis along the longitudinal axis and a series of turns are located in a spiral with respect to this longitudinal axis. These products are more durable than A1 rebars. The yield strength of these rebars is 3400 and their tensile strength is 5000 kg / cm2. Rebar A3 (hard with twisted tread): The third category is ribbed rebar with spiral tread shape. The shape of the beams in this rebar is fan-shaped (porch-shaped) in relation to the longitudinal axis and in terms of strength, they have higher resistance than rebars A1 and A2.