1,The character of steel fiber for concrete: The steel fiber mainly uses in concrete material.The steel fiber concrete is a new type of compound material through rapidly developing since recent twenty years,because the material is added with uniform distributing short steel fiber compound material.It has good crazing-resistance,anti-freezing,anti-bend, antiwear,washing-resistance etc.It has not only the good character of the normal concrete,but also it makes fragile concrete show good ductility and toughness,as well as nice anti-freezing,antiwear etc. 2,The code of the steel fiber: item symbol shape specification length(mm) diameter(mm) curve N 15to37 0.3to1.0 embossing A 15to 37 0.3to 1.0 hook D 15 to37 0.3 to1.0 wave B 15 to37 0.3to 1.0 3,Patterns:CS-N-;CS-B-;CS-A-;CS-D- 4,Physical,Chemical Properties and Specifications of Steel fiber No. Items Technical datas Results 1 C 0.08% 0.08% 2 S 0.035% 0.035% 3 P 0.035% 0.033% 4 Bending It didn’t break by steel bar of 3mmThrough bending 90?Don’t break afterInspecting 10 pieces 5 Length&Diameter rate From 30 to 100 From 30 to 100 6 Tensile Strength(Mpa) 380max From 610 to 640 7 Length From 15mm+10% to 37mm+10% Qualified 8 Diameter From 0.3mm+10% to 1mm+10% Qualified 9 Steel Patterns 08F Best Carbon Steel Board Qualified 4,The use of steel fiber: It is mainly used in concrete,such as highway,airport,the roof of the house,bridge,mine and so on. 5,How to use steel fiber: 1) For the sake of keeping uniform,first mix 1.5 to2 minutes without water,1 to 2minutes more than ordinary concre’s agitating. 2) To press steel fiber down after surface finishing,there aren’t discovering steel fiber and mortar on surface. 6,Packing:in 25kg plastic woven bag outside,kraft bag lining plastic film bag inside.