Strandard Strands

Strand is made from 7 individual cold-drawn wires, 6 helically wound outer wires and one center wire (king wire).

The mechanical properties of the strand as well as corrosion protection properties are most important to DSI.

Strands can be supplied either bare, galvanized or epoxy-coated without any loss in strength including the wedge anchorage.

For a maximum in corrosion protection we offer electrically isolated systems using polyethylene (PE) or polypropylene (PP) sheathings.

strand is usually packaged in so called coils that can weigh up to 3.5tons
 

 
 
type  

13 mm (0.5¹¹)

15 mm (0.6¹¹)

code /specification

  

ASTM A 416

Grade 270

prEN 10138

BS 5896 Super

ASTM A 416

Grade 250

prEN 10138

BS 5896 Super

ASTM A 416

Grade 270

prEN 10138

yield strength fpo.1k

(N/mm²)

1.670¹

1.580²

1.550¹

1.500²

1.670¹

1.580²

ultimate strength fpk

(N/mm²)

1.860

1.860

1.725

1.770

1.860

1.860

nom.diameter

(mm²)

12.70

12.90

15.24

15.70

15.24

15.70

cross sectional area

(mm²)

98.71

100.00

139.35

150.00

140.00

150.00

weight

(kg/m)

0.775

0.785

1.094

1.180

1.102

1.18

ultimate load

(kN)

183.7

186.0

240.2

265.0

260.7

279.0

modulus of elasticity

(N/mm²)

195.000

relaxation ³ after

1000 h at 0.7 x

ultimate load fpk

(%)

max.2.5
 

in addition to standard strands, DSI offers a variety of special strands such as DYFORM with a guaranteed ultimate capacity of 309kN.

the technical data for these products is available upon request .

¹ yield measured at 1% effective elongation

² yield measured at 0.1% residual elongation

³ applicable for relaxation class 2 according to Eurocode prEN 10138/BS 5896: or low relaxation complying to ASTM A 416 , respectively.
 

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