What wire strand for prestressed concrete?

Kinwey offers Prestressed Concrete Wires (pc wire) in mainly two types: Mono pc wire and Multi-wire strand.

PC steel wires are widely used in concrete construction industry for pre-stressed steel structures: large-span bridges ( stay cable system), overhead crane beam, cement poles, coal mines rock-soil anchoring project, multi-storey frameworks (slab and hollow floors), subway, railway sleepers, dams, shell safety of nuclear power stations, high-rise buildings (television tower, water towers, concrete silo, sewage treatment, hydropower project, stadiums) and etc.
Quality: ASTM A-416, BS , JIS G, the standards and cutomized specifications.
Common wire materials for production: High tensile wires, plain or galvanized.

Contact us to discuss your requirements of Prestressed Steel Strand. Our experienced sales team can help you identify the options that best suit your needs.

The process involves the continuous heating and stretching of a cold drawn high-carbon steel wire to produce a finished product with a much improved yield stress and greatly reduced load relaxation.

PC Wire / Strand Classifications

Prestressing concrete steel wire can be divided according to wire diameter, the intensity level, the surface coating or cross-section:
1. According to diameter, PC steel wire can be categorized as: 4mm, 4.8mm, 5.0mm, 5.1mm, 6.0mm, 6.35mm, 7.0mm, 7.8mm, 8.0mm, 9.0mm, 10.0mm, 11mm, 12mm and so on.
2. According to tensile strength, pc wire can be classified as: MPa, MPa, MPa, MPa and MPa.
3. According to the surface coating, pc wire can be classified as: uncoated prestressed steel wire, prestressed epoxy coated steel wire and galvanized prestressed steel wire.
4. According to forms of the surface, it can be classified as: Round plain wires, spiral ribbed (spiral ribbed or helix grooved) steel wires, crimped wires, slotted (indented) wires, and so on.
5. According to wire treatment process, pc wire can be categorized as follows: cold-drawn pc wire and low relaxation pc wire.
6. According to wires applied, pc wire can be classified as single individual pc wire and helically stranded wire ( pc strand).
7. According to applications, pc wire / strand can be divided into:
Un-bonded strand: zinc coated, grease filled; uv stabilized polymer sheath, for post tensioning
Bonded strand, retardant, galvanized bright, with PE shielding, for stable cable, suspension wire cable for bridge construction
8. According to structures, stranded wire can be classified into 2 wire strand, 3 wire strand or 7 wire strand mostly.

Prestressing steel wire / pc wire, functions differently compared with reinforcing steel (rebars):

Post-tensioning is very useful to defeat the natural weakness of concrete in tension and to optimize its strength in compression. In concrete structures, using high-tensile steel wire / strand placed in the element prior to casting will:
1, Reduces occurrence of cracks . 
2, Increase in durability. 
3, Less deformations (improved serviceability).
4, Increase in shear capacity.

Since concrete is weak in tension, the reinforcing steel bar / rebar is used inside concrete for strengthening and reinforcing the tensile strength of concrete. Reinforcing steel bars are used to absorbs the tensile, shear, and sometimes the compressive stresses in a concrete structure.

Newly Exported Products

PC Wire, PC Strand Wire, PC Steel Wire For Vietnam,
PC Steel productions as below:
Comm : PC STEEL BAR/PC WIRE
Size: Φ7.1 , Φ9.0, Φ6 , Φ5

PC Wire 0.5" size for Bridge Project. in Lahore (Pakistan).

High Tensile Steel Wire (low Relaxation Prestressed Concrete Wire ) For Amman &#; Jordan
Bright plain high tensile steel wire of 7mm diameter as specified :

1 Steel required has to be bright plain-high tensile steel wire7mm diameter and will be used in manufacturing prestressed concrete poles for medium voltage networks. 2 The steel should conform in all respects with the requirements of the latest edition of BS. or Chinese specifications [prestressed wire 7.00--WLR-P-GB/T/] or equivalent. 3 The nominal tensile strength of the steel should be (N/mm2). 4 The steel should be of Low relaxation &#;quality and the wire is pre-straightened and will run out straight form the coil when used at site. 5 No joint is allowed in the wire which should be one piece in the coil. 6 Steel shouldbesuppliedinlargediametercoilsof1.8 -2.4m. 7 The weight of Each coil should be approximately Kgs. 8 The packing o f each coil ensures good protection to the steel during loading, shipping, unloading, transportation, and storing at the site of the purchaser. For that, every coil is tightly wrapped by proper and secure seaworthy packing. 9 Each coil has a separate label made of steel sheet with a reason able size. 10 Mechanical and other relevant tests should be carried out on sufficient number of samples from the materials. Our engineer will operate these tests in the laboratory. The purchaser has the right of testing some samples in a 3rd party (for example SGS) laboratory at the manufacturer Expense.

Uncoated 7 Wires PC Strands With Following Sizes ( ½ And 0.6 Inches ) For In Uae And Oman.
Grades : low relaxation according to ASTM- 416 , Grade 270 ( MPa).

7 Wire PC Strand, 15.24mm (ASTM A416 Gr 270 Low Relaxation) , 2.0ton – 3.5tons per coil

PC indentened Wire for Damascus
Straightened indented cold drawn pre-stressed steel wires of nominal diameter 7 mm.
according to the EN /4/979 or BS /80
- Nominal tensile strength: N/mm2
- Yield limit : N/mm2
- Guaranteed Yield point: at 0.2 % of permanent elongation N/mm2.
- Deflections : Max. 12 mm in 1 meter long.
- Diameter tolerance : 7 mm ± 0.05 mm
- Relaxation: Class 1 or Class 2
- Weight of Coil : manufacturer Choice , preferable less than Kg .
- Coil nominal inner diameter: - mm.
- Coil nominal outer diameter: about mm.
- Indentation depth: 0.15 mm± 0.05 mm , three indented faces with angle 45° , pitch 8 mm.

PC still wire for prestressed concrete railways sleepers, diameter 3 mm for Damascus
Specifications of the material (tensile strength; surface; coils weight, standard).
- Materiral : Prestressed concrete pc wire steel dia 7mm.
- Standard ACC BS &#; and EN 138/4/ OR equivalent
- Tensile strength : N/mm2.
- proof strength : N/ MM2.
- Diameter :7 mm.
- Relaxation :class1.
- deviation :max 12mm for L1m.
- the Surface:
indented pc wire steel.
indent depth 0.15 mm +- 0.5.
indented on three faces at a 45 degree angle.
- Coils weight: (500 , 700) kg.
- Interior diameter (-)mm
- Outer diameter of the coils approx. ( ) mm.
Standard: all Production (pc wire), control and testing according to above standard.
- inspection :
will be by a neutral third party, through a competent inspection company selected by payer.
- Diameters :7 mm. - Tolerance of diameter 7mm +-0.5
- Quantity: 300 ton.
Delivery syria port( lattakia)

PC Plain Cold Drawn Wire 4 mm Diameter For Germany
PC wire strand 4mm
PC wire strand 5mm

Spiral Steel Wire-OD2.7mm for Malaysia&#;
NTW Wire - Non Tensions Wire-OD6mm
Prestressed PC Wire- 4 side indented oval shave
Size: OD 5mm
OD 7mm

Supply Prestressing Steel Wire 140/160 Dia 9.4mm In Length mm, Round Smooth, Cold Drawn Acc. To En-2
Material grade:smooth wire st/ min.
Size:dia.9.4mmxmm length

Galvanized Steel Strand
The vertical hot-dip galvanized technology ensures coating thickness.
Common structure: 7 strands / 19 strands
Application: for ACSR, stay wire, Guy wire, barrier cable, guardrail strand, overhead earth wire
Material: high carbon steel
Galvanized steel wire size: Φ1.44mm-4.770mm
Strand size:7×&#;1.44-4.2 mm&#;;19×&#;1.44-3.5mm&#;
Tensile strength: different Grade from min. N/mm2 to min.N/mm2
Zinc coating: According to ASTM A475 Class A
Meets ASTM Specifications A475 or A363 or ASTM B498 or BS EN

PC Steel Wire S Grooved, Supply to Iran

Name

For more information, please visit Spiral Ribbed PC Wire.

pc steel wire Designation Diameter 4mm 4.8mm 5mm 6mm 7mm Grade ASTM A 421 Nominal cross section area (mm2) 18.7 Diameter Tolerance 0.00mm / ± 0.05mm Yield stress (N/mm2)

 Min.

Tensile stress (N/mm2) Min. Elongation (%) 3.5 Min. Relaxation (%) 2.0 Max. Groove number 4 Groove direction S

Cold Drawn PC Wire in Coils
Material: Prime Alloy Steel Wire for in coils for prestressing of concrete
Technical Specifications:
- Designation as per British Standard BS /2 Wire--7-DE-relax 2
Explanation of designation (Basic specifications)
- Standard BS -section 2
- Diameter of Wire: 7 mm.
- Surface condition: smooth (E)
- Tensile strength: MPa
- Relaxation : class 2 (1% @ 60% initial load, 2.5% @ 70% initial load and 4.5% @ 80% initial load)
- Coil outer diameter: 2.3 m. max.
- Yield stress (0.1 proof Stress): MPa
- Elongation: 3.5%
- Ductility: 4 Times 20 mm. Bending
Packing: Mill's Standard with Coil Weight of - Kg.

Indented PC Wire, Steel
- Materiral :
Prestressed concrete pc wire steel dia 7mm.
- Standard ACC BS &#; and EN 138/4/ OR equivalent
- Tensile strength : N/mm2.
- proof strength : N/ MM2.
- Diameter :7 mm.
- Relaxation :class1.
- deviation :max 12mm for L1m.
-the Surface:
indented pc wire steel.
indent depth 0.15 mm +- 0.5.
indented on three faces at a 45 degree angle.
- Coils weight: (500 , 700) kg.
- Interior diameter (-)mm
- Outer diameter of the coils approx. ( ) mm .
- Diameters :7 mm. - Tolerance of diameter 7mm +-0.5
Delivery to Syria

PC Bars
Steel Bars for manufacturing of PC Poles and Spun Piles.

PC strands, or prestressed concrete strands, are high-strength steel wires made up of individual steel wires twisted together in a helical pattern. They are specifically designed to withstand high tensile forces.

By introducing prestress to concrete, PC steel wire strands help to counteract the tensile forces that it may be exposed to, this can increase the load-carrying capacity. PC strand is widely used with concrete structures such as beams and columns.

Prestressed strands can increase the strength of concrete structures and are often used for large scale projects. Prestressed steel strand construction can vary in diameter, length, and finish.

PC strand

Construction uses of PC strand

Many construction projects can benefit from prestressed strand and consider it essential in their structure, including:

• Bridges
• Commercial buildings
• Parking structures
• Offshore platforms
• Stadiums
• Highway work
• Mining
• Parking garages

PC strand is a reliable way of adding bond strength to any concrete structure.

Benefits of using prestressed concrete steel strand

1. Saves on construction materials: Its design with longer spans and smaller cross-sections make it more economical.

2. Withstands rough weather conditions: It can retain its strength and integrity even in harsh environments, with corrosion resistant properties.

3. Can carry heavy loads: Its high tensile strength makes it ideal for large structure projects.

1. Wide range of sizes and strengths: There are many options in the market to choose from, to fit your project requirements.

Prestressed concrete strand

Mid-Continent Steel and Wire PC strand specifications

Our uncoated seven-wire PC Strand is manufactured under the highest quality standards. It is used in pretensioned and post-tensioned prestressed concrete constructions.

Construction: 1×7 270 ksi Low-Relaxation

Diameter: 0.50&#; (0.60&#; also available as MTO)

Min Elongation: 3.5%

Coil Length: 270 kft

Finish: Uncoated or Galvanized

-Hour Relaxation Testing: Successful Completion & Approval of ASTM A

Meets: ASTM A416

Want more information on spiral ribbed prestressed steel wire? Feel free to contact us.