Checking the quality of steel sections in the iron market, especially in this season of the year, due to rainfall and humidity can change the quality and decline of quality is of great importance to buyers. According to the analysis of Price Iron Experts, it seems that the rebar produced by alloying method is more resistant to rust due to the weathering and weathering caused by wet weathering. And yellowness is more resistant.

Evidence suggests that in the dumping of barbed rebar of various bases in Anbar, which over the past two years, Yazd alloy steel barrier and Isfahan smelter, which is incidentally engraved on both CU products, have a much better appearance and rust. Bumps are lower than other CT-branded rebar bars, although in both manufacturing methods mentioned above the ISNO national standard is the only difference between the appearance and durability of the warehouses.

Although experience in the brick rebar of various factories producing cooling (T) methods has shown experience that some respond faster and some later in response to yellowing caused by air humidity, but none of the factories are accurately present. There was no clarification as to the cause.
Field reports indicate that the product produced by some factories, such as Khorasan and Azerbaijan, which are produced by thermex or "cooled" method, in the face of yellowing caused by air humidity under normal conditions, compared to other products of their own category. They are more favorable for end use.