7 wire steel strand for prestressed concrete

 Grade

Nominal Diameter of Strand

Tolerance of Diameter

Minimum Breaking Strength of Strand 

Minimum Load at 1% Extension
(Yield Strength) 

Minimum Elongation
(Gauge Length **0mm/*4inch min) 

Nominal Area of Strand

Nominal Weight of Strand (approx)

Maximum Relaxation Loss after ***0 hours

 Initial Load
*0%

 Initial Load
*0%

Ksi
(Mpa)

mm
(in)

mm
(in)

KN
(lbf)

KN
(lbf)

%

mm2
(in2)

kg/***0m
(lb/***0ft)

%

 **0
 (***5) 

 9.*3
(3/8 - 0.**5)

+/*0.*0
(+/*0.**6)

*9.0
(****0)

*0.1
(****0)

 3.5

*1.*1
(0.**0)

**5
(**2)

 2.5

 3.5

 *1.*1
(7/*6 - 0.**8)

**0.1
(****0)

**8.1
(****0)

*9.*8
(0.**8)

**8
(**7)

 *2.*0
(1/2 - 0.**0)

**0.1
(****0)

**4.1
(****0)

*2.*0
(0.**4)

**0
(**0)

 *5.*4
(6/*0 - 0.**0)

**0.2
(****0)

**6.2
(****0)

**9.*5
(0.**6)

***4
(**7)

 **0
(***0)

 9.*3
(3/8 - 0.**5)

*0.*5/*0.*5
(*0.**6/*0.**6)

**2.3
(****0)

*2.1
(****0)

 3.5

*4.*4
(0.**5)

**2
(**0)

 2.5

 3.5

 *1.*1
(7/*6 - 0.**8)

**7.9
(****0)

**4.1
(****0)

*4.*9
(0.**5)

**2
(**0)

 *2.*0
(1/2 - 0.**0)

**3.7
(****0)

**5.3
(****0)

*8.*1
(0.**3)

**5
(**0)

*5.*4
(0.6 - 0.**0)

**0.7
(****0)

**4.6
(****0)

**0.*0
(0.**7)

***2
(**0)