english
français
Deutsch
Italiano
Русский
Español
português
Nederlandse
ελληνικά
日本語
한국
polski
فارسی
বাংলা
ไทย
tiếng Việt
العربية
हिन्दी
Türkçe
indonesia
High Carbon Steel Low Relaxation Prestressed Concrete Strand For Bridges / Buildings
Place of Origin:
Shandong, China
Brand Name:
Bangyi
Certification:
SGS, ISO, CE, ROHS
Model Number:
BY-PC-1*7
Standard Packaging:
3.0-3.5Tons /Coil
Delivery Time:
5-10 Days
Payment Terms:
T/T
Supply Ability:
70000 Tons/Year
Product Details
Highlight:
Low Relaxation Prestressed Concrete Strand
,Bridges Prestressed Steel Strand
,Steel Strand For Prestressed Concrete
Product Name:
Low Relaxation Prestressed Concrete Strand
Steel Grade:
SWRH 82B High Carbon Steel
Featrue:
Low Relaxation
Standard:
GB/T 5224-2014, ASTM A416, BS 5896, JIS G 3536
Diameter:
9.53-21.8mm
Package:
Packing In Coils ,with PVC Film And Weaving Bag / Hessian Cloth
Tensile Strength:
1860Mpa
Application:
Bridges On Railway And Highway, Overhead Crane Beam, Rock-soil Anchoring Project
Product Description
High Carbon Steel Low Relaxation Prestressed Concrete Strand For Bridges / Buildings
Post Tensioning Wire High Carbon Steel Strand Low Relaxation Prestressed Tendon (PC Strand) for Bridges & Buildings
Product Introduction
Prestressed steel strand is a high-strength building material made from high-quality high carbon steel wire rod as raw material, which is cold drawn into steel wire through multiple processes such as acid washing, phosphating, and drawing. It is then twisted into bundles by 2-7 steel wires and finally stabilized.
Mainstream products can be divided into 1 × 7 standard type, 1 × 3 compact type, etc. according to their structure. The tensile strength can reach 1860MPa or more, the yield strength to tensile strength ratio is ≥ 0.9, and the elongation rate is ≥ 3.5%. All performance indicators comply with national standards such as GB/T 5224-2014.
Product Parameters
GB/T 5224-2014
| Steel Strand Structure | Nominal Diameter Da /mm | Dia Tolerance /mm | Strand Nominal Cross-Sectional Area Sn/mm² | Approx. Weight per meter(g/m) | Range(extened)% of core wire's diameter not less than |
|---|---|---|---|---|---|
| 1x7 | 9.50 (9.53) | +0.30 -0.15 | 54.8 | 430 | 2.5 |
| 1x7 | 11.10 (11.11) | +0.30 -0.15 | 74.2 | 582 | 2.5 |
| 1x7 | 12.70 | +0.30 -0.15 | 98.7 | 775 | 2.5 |
| 1x7 | 15.20 (15.24) | +0.30 -0.15 | 140 | 1101 | 2.5 |
| 1x7 | 15.70 | +0.40 -0.15 | 150 | 1178 | 2.5 |
| 1x7 | 17.80 (17.78) | +0.40 -0.15 | 191 (189.7) | 1500 | 2.5 |
| 1x7 | 18.90 | +0.40 -0.15 | 220 | 1727 | 2.5 |
| 1x7 | 21.60 | +0.40 -0.15 | 285 | 2237 | 2.5 |
ASTM A416 1X7
| Grade | Nominal Diameter (mm) | Tolerance (mm) | Area of Section (mm²) | Weight of strand (kg/1000m) | Minimum Breaking Load (KN) | Minimum Load at 1% extension (KN) | Elongation not less than (%) | 1000Hrs Relaxation Value Not More Than |
|---|---|---|---|---|---|---|---|---|
| 250 | 9.53 | ±0.41 | 51.61 | 405 | 89.0 | 80.1 | 3.5 | 2.5 | 3.5 |
| 250 | 11.11 | ±0.41 | 69.68 | 548 | 120.1 | 108.1 | 3.5 | 2.5 | 3.5 |
| 250 | 12.70 | ±0.41 | 92.90 | 730 | 160.1 | 144.1 | 3.5 | 2.5 | 3.5 |
| 250 | 15.24 | ±0.41 | 139.35 | 1094 | 240.2 | 216.2 | 3.5 | 2.5 | 3.5 |
| 270 | 9.53 | +0.65 -0.15 | 54.84 | 432 | 102.3 | 92.1 | 3.5 | 2.5 | 3.5 |
| 270 | 11.11 | +0.65 -0.15 | 74.19 | 582 | 137.9 | 124.1 | 3.5 | 2.5 | 3.5 |
| 270 | 12.7 | +0.65 -0.15 | 98.71 | 775 | 183.7 | 165.3 | 3.5 | 2.5 | 3.5 |
| 270 | 15.24 | +0.65 -0.15 | 140.00 | 1102 | 260.7 | 234.6 | 3.5 | 2.5 | 3.5 |
Product Shown
Product Advantages
Compared to ordinary steel bars, prestressed steel strands have three core advantages:
- High strength density ratio: Under the same load-bearing requirements, the amount of steel used is only 1/4 of that of ordinary steel bars, greatly reducing the self weight of the structure
- High relaxation stability: After low-temperature tempering stabilization treatment, the relaxation rate after 1000 hours is ≤ 2.5%, and the long-term stress loss is small
- Excellent corrosion resistance: After surface galvanizing or epoxy coating treatment, it can serve for a long time in harsh environments such as high humidity and corrosive soil
Product Application
The product is widely used in the field of large-scale civil engineering:
- Bridge engineering: Prestressed tensioning of large-span box girders and cable-stayed bridge cables
- Hydraulic engineering: Crack resistance reinforcement for hydroelectric dam and culvert
- Construction engineering: Stress control of super high-rise building floors and prefabricated components
- Geotechnical engineering: Slope support, mining anchor cables and other applications
Providing reliable mechanical support for various heavy-duty and large-span structures.
Product Certificate
Our steel wire rope meets international production standards and has obtained multiple certifications:
SGS
CE
ISO
Inquiry
Related Products
ASTM A416 Grade 270 Prestressed Concrete Steel Strand 9.53mm 12.7mm 15.2mm
ASTM A416 Grade 270 prestressed steel strand with 1860MPa tensile strength, low relaxation (≤1%), and multiple certifications (ISO, CE, SGS). Available in 9.53mm-21.8mm diameters for bridges, anchoring, and industrial construction.
Low Relaxation PC Strand 9.53mm 15.2mm 12.7mm ASTM A416 Galvanized PC Strand 1*7
Low relaxation PC strand with 1860MPa tensile strength, certified to ASTM A416/GB/T 5224 standards. Galvanized options available for corrosion resistance. Ideal for bridges, railways, and anchoring projects.
7 Wire Prestressed Concrete Steel Strand 1860Mpa Low Relaxation PC Strand 12.7mm ASTM A416 Grade
7-wire PC strand with 1860MPa tensile strength, low relaxation (<2.5%), and international certifications (ASTM A416, BS 5896). Corrosion-resistant options available for bridges, anchoring, and heavy construction with 50+ year lifespan.
7 Wire Prestressing Strand 1860Mpa Low Relaxation PC Steel Strand Wire Rope Sling
7-wire prestressing strand, 1860MPa tensile strength, low relaxation. Complies with ASTM, GB, BS, JIS standards. High durability for bridges, cranes, anchoring. Certified by SGS, CE, ISO.
