Product Description

Prestressed Steel Strand

● Steel Wire for Prestressed Concrete:
The product is mainly used to produce prestressed concrete components of various structural shapes using various tensioning techniques. In the construction of large-scale railways, highway bridges, roof trusses, crane beams, industrial and civil prefabricated panels, wall panels, prestressed concrete TV towers, nuclear power plants, and other engineering projects. Produce two surface forms: smooth and spiral ribs. American standards ASTMA416, ASTMA421, British standard BS5896, Japanese standard JISG3536, international standard ISO6934, European standard EN10138 

● Steel Strand for Prestressed Concrete :
This product is mainly used for reinforcing prestressed concrete structures. Such as large-span railway and highway bridges, crane beams, geotechnical anchoring engineering, multi-layer industrial factories, coal mines, sports venues, etc. Main executive standard: ASTM A416

● Unbonded Steel Strand for Prestressed Concrete: 
Post tensioned unbonded prestressed steel strands are used for cast-in-place floor slabs, prefabricated beams with large loads, and other specially designed structures in large-span and large-span buildings. It has the characteristics of no need for reserved holes, no need for grouting, simple construction, material saving, and easy bending.

 

Technical parameters of steel strand - American Society for Testing and Materials standard (ASTM A416)

 

 

Grade

 

Nominal

Dia.

(mm)

 

 

Tolerance

(mm)

 

Nominal

section

area

(mm2)

 

Mass Per

1000m

(Kg/1000m)

 

Minimum

Breaking

load

 

Min Load at 1%

Extension

(KN)

 

 

Lo≥610mm

(%)

The relaxation at 1000 h (Initial

load to 70% of nominal max load)

(r/%)

Low-Relaxation

Normal-Relaxation

 

250

[1725]

9.5

 

 

±0.40

51.6

405

89.0

80.1

3.5

2.5

3.5

11.1

69.7

548

120.1

108.1

12.70

92.9

730

160.1

144.1

15.20

139.4

1094

240.2

216.2

 

270

[1860]

9.53

 

+0.65

-0.15

54.84

432

102.3

92.1

11.11

74.19

582

137.9

124.1

12.70

98.71

775

183.7

165.1

15.24

140.00

1102

260.7

234.6

Product Application

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Packaging and shipping

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Factory Display

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FAQ

Q1: What steel products do you mainly supply?

A: We provide a full range of steel products, including rebar, round steel, flat steel, angle steel, channel steel, H-beam, medium and thick steel plate, flattened plate, patterned plate, hot rolled coil, cold rolled coil, seamless steel pipe, welded pipe, galvanized steel, color coated steel, stainless steel, alloy steel and more. Our products comply with international standards such as GB, ASTM, EN and JIS.


Q2: Do you support customized sizes, cutting and processing?

A: Yes. Standard fixed lengths are 6 meters and 12 meters. We can provide flattening, slitting, cutting, bending, polishing and non-standard customized processing services to meet various global engineering procurement requirements.


Q3: What is the minimum order quantity?

A: 1 ton for regular in-stock products; 5 tons for customized rolled products. Small trial orders are acceptable.


Q4: What surface treatments are available for steel products?

A: Hot rolled black surface, cold rolled bright surface, pickling, sandblasting, galvanizing, painting, anti-rust oil coating, mirror wire drawing and customized anti-corrosion treatment.

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