鍛圓是經(jīng)過工藝要求鍛造的圓鋼。規(guī)格國內(nèi)一般生產(chǎn)可以達(dá)到1500mm直徑。鍛材是鍛壓的是沖擊力，適合小的零部件或異型鋼加工。

圓鋼大多以直條成捆供應(yīng)，常用作鋼筋、螺栓及各種機(jī)械零件；大于25毫米的圓鋼，主要用于制造機(jī)械零件或作無縫鋼管坯。

圓鋼是指截面為圓形的實(shí)心長條鋼材。其規(guī)格以直徑的毫米數(shù)表示，如“ 50”即表示直徑為 50毫米的圓鋼。

圓鋼分為熱軋、鍛制和冷拉三種。熱軋圓鋼的規(guī)格為5.5-250毫米。其中：5.5-25毫米的小圓鋼大多以直條成捆供應(yīng)，常用作鋼筋、螺栓及各種機(jī)械零件；大于25毫米的圓鋼，主要用于制造機(jī)械零件或作無縫鋼管坯。

圓鋼與其它鋼筋的區(qū)別:1 外型不一樣,圓鋼外型光園,無紋無肋,其它鋼筋表面外型有刻紋或有肋.這樣就造成圓鋼與混凝土的粘結(jié)力小,而其它鋼筋與混凝土的粘結(jié)力大. 2 成份不一樣,圓鋼(一級(jí)鋼)屬于普通低碳鋼,其它鋼筋多為合金鋼. 3 強(qiáng)度不一樣.圓鋼強(qiáng)度低,其它鋼強(qiáng)度高,即直徑大小相同的圓鋼與其它鋼筋相比,圓鋼所能承受的拉力要比其它鋼筋小,但圓鋼的塑性比其它鋼筋強(qiáng),即圓鋼在被拉斷前有較大的變形,而其它鋼筋在被拉斷前的變形要小得多。

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Forged round is a round steel that has been forged by the process. Specifications domestic general production can reach 1500mm diameter. Forgings are forged and impact, suitable for small parts or profiled steel.

Round steel is mostly supplied in straight strips, often used as steel bars, bolts and various mechanical parts; round steels larger than 25 mm are mainly used for manufacturing mechanical parts or seamless steel tube blanks.

Round steel is a solid strip of steel with a circular cross section. The specifications are expressed in millimeters of diameter. For example, "50" means a round steel with a diameter of 50 mm.

Round steel is divided into hot rolling, forging and cold drawing. Hot rolled round bars are available in sizes from 5.5 to 250 mm. Among them: small round steels of 5.5-25 mm are mostly supplied in straight strips, often used as steel bars, bolts and various mechanical parts; round steels larger than 25 mm are mainly used for manufacturing mechanical parts or seamless steel tube blanks.

The difference between round steel and other steel bars: 1 The shape is different, the round steel shape light garden, no grain and no ribs, the other steel surface has a pattern or ribs on the surface. This results in a small bond between the steel and the concrete. The other steel bars have a strong adhesion to concrete. 2 The composition is different. The round steel (first grade steel) belongs to ordinary low carbon steel, and the other steel bars are mostly alloy steel. 3 The strength is different. The round steel has low strength and other steel strength. High, that is, round steel of the same diameter, compared with other steel bars, the round steel can withstand less tensile force than other steel bars, but the round steel is more plastic than other steel bars, that is, the round steel has a larger before being pulled off. Deformation, while other steel bars are much less deformed before being pulled off.