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Size:φ5.0mm-φ12mm
Cold Rolled Ribbed Steel Bar is a practical new-type building steel material,which is widely used in producing many in producing many buliding components,and as the different distribute bars in all kinds ofreinforced concrete structures project.Due to its high anchoring bond strength and enough plasticity,the Cold Rolled Ribbed Steel Bar could improve the thchniques od the project,reduce the wastage of the wastage of the material and bring down the cost.Therefore,the econmical and social benefit could be put into fullplay.Its finished products could be wire round rod or fixed dimension line.

 

 

 

 

 


Dynam Capability and Technic Capability

Grade
MPa≥
(Tensility)≥
(Bend Test)180
Bend Time
δ10
δ100
CRB550
550
8.0
-
D=3d
-
CRB650
650
-
4.0
-
3



Wire Rod Size and Chemical Composition for Cold Rolled Ribbed Steel Bar

Steel Bar Grade
Wire Rod Grade
Chemical Composition
C
Si
Mn
v/Ti
S
P
CRB550
Q215
0.09~0.15
≤0.03
0.25~.055
-
≤0.050
≤0.045
CRB650
Q215
0.14~0.22
≤0.03
0.30~0.65
-
≤0.050
≤0.045

 

 

 
 

Anping county has a long histroy of engaging in the production pf netting,whose output and export volume for 90 percent of the whole county.It is largest netting production base ans netting products' collecting and distributing place in my county,in the meantime,is also the important export base for the State metal and fiber netting products.

According to the historical recordds in the eighth year of Hongzhi,the Ming Dynasty,that is , in 1495, Anping county began to product screen, and began scaled peoduction in middle of Qing Dynasty, At that time there were dozens of firms set in Tianjin and Inner Mongolia. ect.which were engaged in transreginal and transnational business and trade activities. The wire-drawing technology was introduce into Anping in 1925, from then on , Anping county began to produce and process metal netting , whose uses were gradually developed from civil use to the industrial field , such as building and mines Since refrom and opening to the outside world , Anping netting industry has entered inti a toally new historrical development period , the whole trade has conducted large -scale technological transformattion degree of the machniary equipment reaching 98% , Anping county netting industry has sucessively been listed into the State "Spark Program" , "Proudct Which the State Commission of Science and Technilogy Majorly Suppored " and "Top Ten Spark Rolling Program " of HeBei Probince.

At present , the netting products have been developed into 8 series , more than 500 varirties and over 7000 specifications , with the main products being series paper-making screen , series phosphorus-copper netting , series stainless steel netting , series middle and low carbon steel wire netting ,series steel plate netting , special-shaped netting , crimped netting , foam netting ,spiral netting ,fibre netting , window screening , sintered netting ,melting body filters , ect , The above-mentioned products are widely used in industrial sector and scientific research fields , such as, oil. chemical fiber , chemicals ,mines machinery , building, textile, paper-making , medicine , food marine and space and aviation,and are exported to over 100 countries and reguons , such as the U.S.A., Japan , the Repubilc of Korea , Australia and Italy , the middle East, Taiwan and Hong Kong , After the Chinese Harware Association made an on-the-spot investigation over Anping netting industry on September 8, 1999, through approval by the State Light Industry Administration , held a News Releasing Conference in the People 's Great Hall and the of title of 'China 's Hometown of Netting " was admitted to Anping county.

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