PC Strand Prestressed Concrete Steel Strand Factory, Manufacturers and Suppliers

Prestressed Concrete Strand Description:

Prestressed concrete strand(PC Strand). The products are mainly for the use of prestressed concrete structures reinforced. Such as large-span bridges on railways and highways, overhead crane beams, rock-soil anchoring Projects, multi-story industrial buildings, stadiums, coal mines, etc. Product’s standards: GB/T5224, ASTMA416, BS5896, JISG3536, ISO6934, EN10138 or other special required standards.

1x7 prestressed steel strand, low relaxation pre-stressed steel strand is composed of 7 wires, it has the features of high tensile strength and very low relaxation, which make it could replace traditional deformed steel bar well, and save a lot of steel material. Meanwhile, it makes long-span concrete construction be possible.

High tensile strength, low relaxation, stable modulus of elasticity, stress-relieved, firm connection with concrete, low stress, stable construction, good combination with steel reinforced concrete; saving material, reducing distortion and construction weight, increasing the abrasion resistance, water resistance, stiffness.

Prestressed Concrete Strand Feature:

1. The PC steel strands we provide comply with technical standards such as GB/T 5223, GB/T 5224, ASTM A-416, BS 5896, JIS G3536, or standards mutually agreed upon by the customer and us.

2. PC Strands are also available in various forms for pre-tensioning or post-tensioning applications in plain or galvanized materials ranging from 3 wires, 7 wires, 19 wires and compact constructions.

3. Standard: GB/T5224, ASTMA416, BS5896, JISG3536, ISO6934 & EN10138

Specification of Prestressed Concrete Strand 

(ASTM A416)

Grade

Nominal

Dia.

(mm)

Tolerance

(mm)

Nominal

section

area

（m㎡）

Mass per

1000m

(kg/1000m)

Minimum

Breaking 

load

Min Load at 

1%

Extension

(KN)

L0 ≥610mm

(%)

The relaxation at 1000 h (Initial load to 70% of nominal max load)

(r/%)

250

[1725]

9.5

±

0.40

51.64058980.13.5
2.5
3.5
11.1

69.7

548120.1108.112.792.9730160.1144.115.2139.41094240.2216.2

270

[1860]

9.53

+0.65

-0.15

54.84432102.392.111.1174.19582137.9124.112.798.71775193.7165.115.241401102260.7234.6

Technical data of Pc Strand(GB/T5224)

Structure

Nominal

Dia.

(mm)

Tolerance

(mm)

Coss

section

area

(Sn/m㎡)

Re. mass per

1000m

(kg/1000m)

Fm0.2/KN

Tensile

strength

not less

than

(MPa)

Fp0.2/KN

Yield

strength

not less

than

(MPa)

(L0 ≥500mm)

Agt

Elongation at max load

Not less than

（%）

Initial load to %

of nom inal max

than (%)

The relaxation

at 1000h

(r%)

1X28

+0.25

-0.10

25.1197

1470

1570

1720

1860

1960

1320

1410

1550

1670

1760

3.5

60

70

80

1.0

2.5

4.5

1039.33091256.54441x3
8.6

+0.20

-0.10

37.329610.858.946212.984.86661X79.5

+0.30

-0.15

54.8
430

1720

1860

1960

1550

1670

1760

11.174.258212.7

+0.40

-0.20

98.777515.2140
1100

1470

1570

1670

1720

1860

1960

1320

1410

1500

1550

1670

1760

15.71501178

1720

1860

1550

1670

17.8191150021.628522371770
159018601670

Raw Material

Our raw material is high carbon wire rod SWRH82B and SWRH77B. We mainly purchase the most excellent wire rod from the famous steel group in China.

Production Process 

Raw materials (inspection wire) → Surface treatment → First drawing → Steel strand (9 times of drawing) → Stabilization treatment → Anti-rust coiling → Packaging

Inspection:

Both ends of one pc strand coil shall be inspected through stress relaxation test,tension test, hydraulic universal test, 

bending test and boroscope test, etc.

PC stands factory

Prestressed Concrete Application:

PC STRAND is mainly used as auxiliary reinforcing strand for concrete structure. eg, long spanned bridges on railway and highway, overhead crane construction, multi-floor industrial building ,etc.

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