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　　目前鋼材市場上的偽劣熱軋帶肋鋼筋不合格因素主要是：實際尺寸比名義尺寸小超出標準。強度偏低?；瘜W成份不合格率高。究其原因主要是小軋鋼廠原料不合格，用土煉鋼坯軋制螺紋鋼所致。
The main reason for the disqualification of the fake hot rolled rib in the steel market is that the actual size is smaller than the nominal size. Low intensity. The chemical composition is not high. The main reason is that the raw materials of small rolling mills are not qualified, and they are caused by rolling steel of clay steel.
　　在購買螺紋鋼時，首先從外觀尺寸看，可用游標卡量具簡單測量實際尺寸是否比標明尺寸，一般螺紋鋼上均軋有規格標志，小約一個規格左右或更多，如12螺紋鋼標準內徑為11.5±0.4mm，而偽劣螺紋鋼內徑大多為10mm左右。同時有些偽劣螺紋鋼通過軋扁的方式來欺騙人的視覺，因而從鋼筋端面觀察其為扁橢圓形，而正規材端面應基本為圓形。
When buying rebar, first of all, from the appearance size, use cursor card simple measuring tool measuring whether than indicate the size, actual size are rolling on general rebar specifications marks, small about a specification or more, such as 12 rebar diameter is 11.5 + / - 0.4 mm, but most and inferior rebar diameter is about 10 mm. At the same time some fake rebar flattening ways to cheat people of vision, thus from reinforced as flat oval face observation, and the formal end should be basic on circular.

　　從表面質量看，偽劣螺紋鋼由于用土坯軋制，其表面質量差，常帶有結疤等缺陷，有整體粗糙感。同時有些小軋廠由于加熱溫度、軋制速度不夠，表面顏色偏紅，正規鋼材在廠家出廠時大多大捆包裝，成捆鋼材上均掛有與實物相對應的金屬標牌，標明廠家、鋼材牌號、批號、規格及檢驗代號等。而偽劣鋼筋由于生產條件簡陋，無大型吊裝設備，大多小捆包裝或散裝，無金屬標牌、無質量保證書。當然要根本避免買到偽劣鋼筋，還是到名牌廠商的直接代理商處購買。
From the surface quality, the fake and poor rebar is made of clay, and its surface quality is poor, often with the defects such as scarring, and it has the overall rough feeling. At the same time, some small rolling mill owing to lack of heating temperature, rolling speed, the surface color slants red, regular steel manufacturers factory in most large bundle packing, bundles are hanging on the steel with a corresponding to the physical metal panels, indicate the factory, steel grades, batch number, specification and test code, etc. The fake and inferior steel rods, due to poor production conditions, have no large hoisting equipment, mostly small bundles or bulk, no metal signs, no quality guarantee. Of course, you should avoid buying fake and inferior bars at all, or buying from a direct agent at a well-known manufacturer.
　　以上就是今天的介紹,如果您想了解我公司產品的更多信息,歡迎您電話咨詢,我們定會為您提供詳細的產品信息。
Above is today, if you want to know about my company's products for more information, welcome to telephone consultation, we will provide you with detailed product information.