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Quick Details

  • Standard: AISI, ASTM, BS, DIN, GB, JIS
  • Grade: PSB500,PSB785,PSB830,PSB930,PSB1080,PSB390
  • Diameter: 15,18,20,25,32,36,40,50mm
  • Length: 6/8/9/12meters or cut upon request
  • Place of Origin: Tianjin, China (Mainland)
  • Brand Name: SJT
  • Model Number: psb830 psb 930 MPa 20mm 25mm
  • Application: bridge beams ,high railway girders ,tunnel rock anhcoring ,mining
  • Composition: 40MnSi2V
  • Yield /tension ratio: 0.6
  • Elongation: 10%
  • Common tensile strength: 500,785,830,930,1080,390
  • Bar anchorage: Bolt and nuts ,couplers ,bearing plates and washers
  • Surace features: Whithout rib ,coupling screw nuts
  • Properties: Higher tensile strength ,no welding
  • Materials: Quality alloy steel
  • Processing technique: Hot rolling ,post tensioning ,pretensioning
  • Packing and shipping: Nuded in container or bulk ship

Packaging & Delivery

Packaging Details Generally nude packing by 20feet or 40feet container with 25tons max weight or cheaper bulk ship with large order quantity
Delivery Time 30 days after payment

Permanent tension side bolt anchorage for truss support   

The screw thread steel bars for the pre stressing of concrete manufactured by our company is a high tensile alloy steel bar which features a coarse righthand thread over its full length and available in two standard lengths, namely 9m and 12m,yet,special length is negotiable based on users demand subject to the maximum length of 18m..

 

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. And also according the users outline dimension to produced the screw thread steel bars. 

1.Drawings 

2.Main specifications 

Nominal Diameter

mm

Dv

mm

Dh

mm

H

mm

B

mm

L

mm

Nominal sectional

area

mm2

Nominal

Weight

Kg/M

15

15

15

1

4.5

10

176

1.47

18

18

18

1.2

4.0

9

254.5

            2.11

25

25

25

1.6

6

12

490.9

           4.1

32

32

32

2.0

7

16

                 804.2

           6.65

36

36

36

2.2

8

18

1018

8.41

               40

40

40

2.5

8

20

 1256.6

10.34

 

 

 

Grade

    Yield 

strength

 MPa

 Tensile 

strength

 MPa

Elongation 

  at failure 

        A%

Uniform 

elongation 

     Agt%

Stress relaxation

Original 

stress

Relaxation 

rate  after 

1000h r/%

Relaxation 

rate after 

10h r/%

PSB500

≥500

≥630

  ≥10

 

0.8ReL

≤3

≤1.5

PSB555

        ≥555

≥777

≥6

PSB785

        ≥785

≥980

≥7

≥3.5

 

PSB830

        ≥830

≥1030

 

≥6

 

PSB930

        ≥930

≥1080

PSB1080

       ≥1080

≥1230

≥2.5

PSB390

       ≥390

≥560

≥18

 

3.Accessaries and fasteners 
(1)anchor nuts (spherical &hex )

 (2) rebar coupler 


 (3)Bearing plates 

 
3.Production flow chart in workshop 
4.Application case
 5.Recommended products 
Our Services

 6.Quality Assurance 

From raw materials procurement to production line ,they are all strictly managed by professionals ;besides ,we also adopt two kinds of methods below to assure quality :

• offer free samples for sincere customers to test properties before placing order ;

• welcome to visit our mill and examine rebars personally or via approved third-party inspection body .

Packaging & Shipping

7.Packing and shipping (Nuded packing by container ship or bulk ship )

    (1)Container  ship 

   (2)Bulk ship 

 

Company Information

   Tianjin Shengjintai Steel & Iron Co., Ltd. is one of the sales companys,which subordinate to Tianjin Tiantie Zhaer Steel Production Co., Ltd.

   we offer diferent kind of certifed  metal building materials 

 
                                                       Our ISO ,BV mill certificates 

 

Contact :                                                                                                                                                            

Contact Person

Ms shasha

Mobile Phone

 0086-15822081295

Skype

shasha_sjt

Email address

shasha_sjt(at)shengjintai(dot)com(dot)cn

 

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