Hebei Hua Tuo Jia Steel Co., Ltd., Shijiazhuang galvanized angle Sales Hotline: Manager Ma 0311 -6,779,021,613,930,425,223 Fax 0311 -67,790,217 Website: http:www.hbhtgt.net angle can structure the different needs of various force member, also can make a connection between the member items. Widely used in various building structures and engineering structures, such as beams, bridges, transmission towers, lifting and transport machinery, ships, industrial furnace, reaction tower, container frame and warehouse shelves. Angle steel is used in the construction of carbon structural steel, is a simple cross-section steel steel, mainly used in the framework of metal components and plant. Good weldability, the plastic deformation properties and a certain degree of mechanical strength required in use. Raw billet production angles for low-carbon square steel billets, finished angle steel hot rolling, normalizing or hot-rolled state of delivery. Mainly divided into two types of of equilateral angle and unequal angle, unequal angle can be divided into two equilateral thick and equilateral unequal thickness. Angle specifications with a side length and the size of the edge thickness. The domestic steel angle specifications, 2-20 to the side length of the number of centimeters numbers, the same angle iron often 2-7 different edge thickness. Imported steel angle marked on both sides of the actual size and edge thickness and indicate the relevant standards. Side length 12.5cm for large angle steel, 12.5cm-5cm for the medium angle, side length of 5cm for small angle iron. The orders generally of the import and export of angle iron to the specifications required in the use of the main steel the corresponding carbon structural steel steel. Angle iron in addition to the gauge number, no specific composition and performance series. Delivery length of the length of angle iron, the double length two, domestic angle iron cut to length range 3-9m ,4-12m ,4-19m ,6-19m four areas according to the number of different specifications. The Japan length of angle iron range of options for the 6-15m. Unequal angle section height by unequal angle long edge width. Angle of the surface quality specified in the standard, the general requirements shall not use harmful defects such as delamination, scarring, cracks. Angle geometric deviations in shapes that allow the range specified in the standard, generally include bending, edge width, edge thickness, the apex angle, the theoretical weight of items, and the predetermined angle steel without significant torsion. GB/T2101-89 (steel acceptance, packaging, marking and quality certification of the general provisions); GB9787-88/GB9788-88 (hot-rolled edge / unequal angle size, shape, weight and allowable deviation); JISG3192 94 (hot-rolled steel shape, size, weight, and tolerance); DIN17100-80 the (ordinary structural steel quality standards); ГОСТ535-88 (ordinary carbon steel technical conditions). According to the standards, angle should be a bundle of delivery, the bundle passes, with the bundle length should be specified. The angle iron is generally within the bare delivery, transport and storage are required to pay attention to moisture.