Shenzhen fan road exhibition factory teaches you how to identify fake steel:
1.The appearance of fake and inferior steel is often surface.The surface is caused by the uneven surface of the steel surface due to the wear of the groove.Because the fake steel manufacturer wants to pursue profit, often appears the groove rolling is the highest standard.
2.The surface of fake steel easily produces scar.There are two reasons for this: the quality of fake and inferior steel is not uniform, and there are many impurities.It is easy to adhere to steel. These impurities are prone to scar after rolling.
3.And inferior material surface cracks easily, because its billet is adobe, adobe air, adobe in the process of cooling due to the effect of thermal stress, cracks, after rolling there is crack.
4.Fake and inferior steel is easy to scratch, because of shoddy equipment, easy to produce burr, scratch steel surface.Deep scratches reduce the strength of steel.
5.Fake and inferior steel has no metallic luster, it is reddish or similar to the color of pig iron, for two reasons.The temperature of the fake and inferior materials is not standard, their steel temperature is through visual inspection, so that it cannot be rolled in the regulated austenite region, and the performance of the steel cannot meet the standard.
6.And inferior steel transverse reinforcement and low, often appear as disgruntled phenomenon, the reason is that some manufacturer to achieve big minus tolerance, finished product quantity of the previous way slants big, small iron type, groove filling.
7.And inferior steel oval cross section, the reason is some manufacturer for managing material, finished product roll before the quantity of the two way slants big, the strength of rebar is greatly decreased, but also do not conform to the standard of rebar shape size.
This article is provided by shenzhen Funroad jewelry display cabinet direct selling manufacturer: 20 years of jewelry store display cabinet design experience, 2018 will help you to rapidly improve the brand value.