In the purchase of rebar, first of all, from the size of the appearance, can be used to measure the actual size of a simple cursor card measuring tool than indicated size (general rebar are rolled with specifications mark) small about a specification or more (such as Ø The standard diameter of 12 rebar is 11.5±0.4mm, and the inner diameter of counterfeit and inferior rebar is mostly about 10mm).
At the same time, some shoddy rebar by rolling flat way to deceive people’s vision, so from the end face of the steel bar to observe the flat oval, and the normal material end face should be basically round; Secondly, from the point of view of surface quality, because of the use of adobe rolling, the surface quality of the counterfeit rebar is poor, often with scarring and other defects, and there is an overall rough feeling. At the same time, some small mills due to heating temperature, rolling speed is not enough, the surface color is red; Third, the regular steel factory in the factory when most large bundles of packaging, bundles of steel are hung with the corresponding metal signs, indicating the manufacturer, steel brand, batch number, specifications and inspection code. And shoddy steel due to simple production conditions, no large hoisting equipment, most of the small bundles (about ten bundled) packaging or bulk, no metal signs, no quality guarantee. Of course, to fundamentally avoid buying fake and inferior steel, or to the brand manufacturer’s direct agents to buy, especially in the province brand steel bar (for three steel ‘Min Guang’ brand rebar) not only quality stability, and even if the dispute is easy to deal with. Sparks can also be used by experienced people to identify other chemicals.
Suggest the user when buying rebar steel, must arrive regular steel management unit or management point to buy regular steel, ask for steel quality certificate, and carry on acceptance. To have the quality doubt to be able to professional inspection institutions for quality consulting and testing.
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Post time: 11-06-21