Tianjin Shengjintai Steel & Iron Co., Ltd.
Species: Steel rebar,Stainless steel sheet,Hot rolled coil,Cold rolled plate
Ribbed Steel Rod
Accessories of Rebar
Steel Sheet/Plate
Plain Surface Steel Rod
Profile Steel
Rebar

Rebar,Stainless steel sheet,Hot rolled coil,Cold rolled shee.

Product

Product NameScrew threaded steel bar
Product classRibbed Steel Rod>>Screw threaded steel bar
Details

Screw threaded steel bar (also called prestressed concrete rebar) is a kind of straight steel rod rolled with discontinuous outer threads. The kind of rebar has characters of large diameter, high strength, high precision in dimension. Couplers and nuts with inner threads can be crewed on any sections of the rebar for anchoring.

  Mechanical Property of screw thread steel bar 

Steel 

grade

Yield 

strength (MPa)

Tensile 

strength (MPa)

Elongation 

at failure  A%

Uniform 

elongtion Agt%

Stress relaxation

Original 

stress

Relaxation rate 

after 1000h r/%

Ralaxation rate 

after 10 r/%

PSB500 500 630 10   0.8R 3 1.5
PSB555 555 777 5  
PSB785 785 980 7 3.5  
PSB830 830 1030 6
PSB930 930 1080 6
PSB1080 1080 1230 6 2.5
PSB390 390 560 18    

Sizes of screw thread steel bar 

Nominal 

Diameter 

(mm)

dv 

(mm)

dh 

(mm)

(mm)

(mm)

(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 9 254.5 2.11
20 20 20 1.3 4.8 10 314 2.47
25 25 25 1.6 6 12 490.9 4.1
32 32 32 2 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
50 50 50 3 9 24 1963.5 16.28
63.5 63 63.5 3 - 22 - 26.2
75 74.5 75 3 - 20 - 36.1

full thread steel bar

>>>Expatiation of screw threaded steel bar

copyright ©2012 Tianjin Shengjintai Steel & Iron Co., Ltd. Species:

Rebar,Stainless steel plate,Hot rolled coil,Cold rolled sheet