Carbon Steel Black Concrete Thread Screw Reforced Steel Bar

  • Model NO.: SIZE: 6-28MM
  • Length: 5.8-12m
  • Surface: Ribbed
  • Specification: ASTM, BS, GB
  • HS Code:
  • Diameter: 6-28mm
  • Use for: Building and Construction
  • Trademark: GHL
  • Origin: China

HOT ROLLED SCREW THREAD STEEL BAR 


1. Screw Thread Steel bars 
 
PSB500/555/785/830/930/1080 Screw thread reinforced steel bars
Cheap price High quality 12mm PSB Screw thread Iron steel bar for concrete
 
The screw thread steel bars for the prestressing of concrete manufactured by our company is a high tensile alloy steel bar which features a coarse right-hand thread The outline dimensions of the screw thread steel bars for the prestressing of concrete manufactured by us accord with the regulation for the outline and dimension of screw thread steel bars for the prestressing of concrete provided by Highway LAYOUT Design Institute under the Ministry of Communication.
 
1)Grade: HRB400/HRB500/BS4449/ASTM A615/SD400 
2)Diameter:6,12,14,16,18,20,22,25,28,32
3)Length:6m-12m  or in coils
4)Brand:GHL
5)MOQ:250 tons
6)Usuage: building and construction
7)competitive price   
8)FOB Price: Per Metric Ton price

Length:6m-12m 
The chemical composition of deformed steel bar reinforcing bar







Standard
GB1499-48,HRB335,HRB400,HRB500,BS4449-97,Gr.460B,B500

The chemical composition of reinforcing bar

Grade
C
Mn
Si
S
P

HRB335
0.17~0.25
1.0~1.6
0.4~0.8
0.045Max
0.045Max

HRB400
0.17~0.25
1.2~1.6
0.2~0.8
0.045Max
0.045Max

HRB500
0.17~0.25
1.6Max
0.8Max
0.045Max
   0.045Max

The technique parameter of reinforcing bar

 
Yield Strength
Tensile Strength
Elongation

HRB335
≥335MPa
≥455MPa
≥17%

HRB400
≥400MPa
≥540MPa
≥16%

HRB500
≥500MPa
≥630MPa
≥15%

Cellulose Ether is the powdered cellulose ether generated with wood fiber or refined short cotton fiber as the main raw materials, after chemical treatment and by the reaction of etherifying agents such as chlorinated ethylene, chlorinated propylene and oxidized ethylene.Cellulose ethers represent an important class of commercially important water-soluble polymers (WSPs). Examples of such WSPs include carboxy-methylcellulose (CMC), hydroxyethylcellulose (HEC), methylcellulose (MC) and hydroxypropylcellulose (HPC). By incorporating additional functional groups into such cellulose ethers, a wide variety of mixed cellulose ether derivatives can be produced. Currently, cellulose ethers are manufactured by reacting cellulose with appropriate etherifying reagents. The cellulose material used to prepare cellulose ethers is referred to as [furnish". At present both purified cotton linters and purified wood pulp are used to manufacture cellulose ethers.

The ability of a water-soluble cellulose ether to enhance the viscosity of water is primarily controlled by its molecular weight, chemical derivatization, and substitution uniformity of the polymer chain.


Cellulose Ether

Cellulose Ether ,Modified Cellulose Ether,Methyl Cellulose Ethers,Modified Cellulose Ether Adhesive

JINZHOU YICHENG CELLULOSE CO.,LTD. , http://www.hbyichenggroup.com