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Cold roll reinforcing steel bar,Cutting steel bar,Three ribbed steel bar manufacturing and factory
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Cold roll reinforcing steel bar,Cutting steel bar,Three ribbed steel bar manufacturing and factory
Cold roll reinforcing steel bar,Cutting steel bar,Three ribbed steel bar manufacturing and factory
ClassificationWater and electricity construction industry
Release date2015-10-12
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Introduction


Cold roll reinforcing steel bar,Cutting steel bar,Three ribbed steel bar manufacturing and Factory, Manufacture, Service agency.

 

Cold drawing is one means that making 1 level steel bar of 6-8mm material draw to other type reinforcing steel bar. If want to make the steel be having thread, we can roll the thread by the mold. Cold drawing is one of Three-dimensional ForceCold drawing mean to pull pressure one side of the material, making the material through one mold, and the diameter of the model is smaller than the material. 

Cold drawing processing not only make the material in addition to a stretch, also outside the deformed extrusion. Cold drawn steel processing are generally performed on a dedicated drawing machine. Cold drawing one side material is better than the cold drawing two side. Thus, after the cold-drawn, steel bar's strength increase more, up to 40% - 90%. But after the cold drawing, plasticity is greatly reduced, the yield stress and strain of the basic stage is hardly exist. (Hardness, and ductility decreased)


Cold-rolled ribbed steel bars are made of hot rolled rod by cold rolling, wire diameter-reducing, a steel bar having one of two or three crescent-shaped face by pressuring ribs and elimination of internal stress. Cold-rolled ribbed steel bar as the prestressed concrete members, it is the new choose instead of cold drawn low carbon steel wire, in-situ concrete structure, you can use grade steel, in order to save steel, it is better one in the common steel material.


Horse Stool Reinforcement Application Horse Stool Reinforcement Application


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1)British Standard: BS4449:2005
Steel Grade: 460B 500B


Diameter 
Dia(mm)

6.0
8.010121416182022252832

Theoretical Weight
(kg/m)

0.222
0.3950.6170.8881.211.582.02.472.983.854.836.31


2)ASTM Standard: ASTM A615/A 615M-09
Steel Grade: GR40 GR60


Bar Designation No.345678910

Diameter Dia(In)

3/8''
1/2''5/8''3/4''7/8''1''1-1/8''1-1/4''

Diameter Dia(mm)

9.5
12.715.919.122.225.428.732.3

Theoretical Weight
(kg/m)

0.560
0.9941.5522.2353.0423.9735.0606.404


3)Standard:  JIS G3112:2010  KS D 3504
Steel Grade: SD390 SD490 SD400 SD500


Bar Designatio No.D10D13D16D19D22D25D29D32

Diameter Dia(mm)

9.53
12.715.919.122.225.428.631.8

Theoretical Weight
(kg/m)

0.560
0.9951.562.253.043.985.046.23


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