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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 products does Jiuhe Steel mainly offer?
Jiuhe Steel specializes in carbon steel, stainless steel, copper, aluminum, color-coated and galvanized products. Our portfolio includes carbon steel coils/plates/pipes/sections, stainless steel coils/pipes/bars, copper plates/strips/pipes, aluminum plates/coils/profiles, pre-painted galvanized coils/roofing sheets, and galvanized coils/pipes/sections.


Q2: What standards do your products comply with?
We can supply products in accordance with various international standards, including GB/T (Chinese standard), ASTM (American standard), JIS (Japanese standard), EN (European standard), and others. We recommend that clients specify their required standards and grades, and we will arrange production accordingly. If you are unsure about the appropriate standard, our team can assist with standard comparison and material selection.


Q3: Do you offer customized products?
Yes. We provide customized steel and non-ferrous metal solutions based on specific project requirements, including special dimensions, materials, surface treatments, and more. Please send us your technical specifications or drawings, and we will offer professional advice and quotations.

 

Q4: How do you ensure product quality?
We maintain long-term partnerships with reputable domestic mills and processing plants, with strict quality control systems in place. All products are accompanied by quality inspection certificates issued by the manufacturer. Upon request, we can also arrange third-party inspection by agencies such as SGS or BV.


Q5: Do you provide Mill Test Certificates (MTC)?
Yes. We provide Mill Test Certificates (MTC) for each shipment, including product name, specifications, applicable standards, chemical composition, mechanical properties, test results, date of manufacture, and the manufacturer‘s official stamp.

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