Low Relaxation Unbonded PC Strand 7 Wires for High Performance

• Customization: Available
• After-sales Service: Pre-in-Post
• Warranty: Forever
• Model NO.: 15.20mm
• Usage: Beam Bridge, Highway Bridge, Railroad Bridge
• Material: Reinforced Concrete Bearing
• Surface: Unbounded
• Shipping Package: Export Packing(Customized)
• Delivery Time: 7-15days
• Coil Weight: 2.5-4.0mt
• Transport Package: Customized
• Specification: 15.20mm
• Trademark: WASUNGEN
• Origin: Tianjin, China
• HS Code: 7312100000
• Production Capacity: 500000mt/Per Year

Product Description

Product Description

Product Introduction

The 1x7 structure '12.7mm, 15.20mm, 15.70mm, 17.80mm' unbonded prestressed steel strand is an advanced, highly specialized steel bar treated with anti-corrosion grease and encased in a robust sheath. Perfectly suited for water conservancy and hydro-power projects, these products have seen increasing use in wind power projects. As wind power towers now often reach or exceed heights of 120m, many are adopting concrete towers with external prestressing technology, utilizing unbonded prestressed steel strands. This product boasts exceptional corrosion and fatigue resistance, significantly enhancing wind resistance and prolonging the service life of structures.
Built on the foundation of the JG/T 161-2016 Unbonded Prestressed Steel Strand standard, we have innovated our design to streamline the testing method of sheath tensile properties, thereby enhancing practicability. Our improvements in sheath performance effectively standardize quality, ensuring superior project safety and reliability.


Product Characteristics

Designed specifically for the external cables of wind power concrete towers, our unbonded steel strands can be customized in sheath thickness and grease composition according to user specifications. The sheath's surface is dense, smooth, and clearly outlines the steel strand beneath. It meets stringent quality standards with no air holes, mechanical damage, cracks, or noticeable wrinkles.


Product Application

Wind Power, Water Conservancy
Hydro-power Station
South-North Water Transfer Project
River Channel and other National Key Water Conservancy and Hydropower Projects

Product Parameters

UNBONDED PC STRAND
Size(mm)	Tensile Strength(MPa)	Section Area(mm^2)	Gresase mass per meter(g/m)	Minimum thickness of coat(mm)	Friction factor(μ)	Effect modulus(K)
12.7	1720,1860,1960	98.7	43	≥1.0	0.04~0.1	0.003~0.004
15.2	1570,1670,1770,1860,1960	140.0	50
15.24	1860	140.0	50
15.7	1860	150.0	53

Standard

Certifications

Packaging & Shipping

Company Profile

Our Advantages

FAQ

Q: Are you a trading company or manufacturer?
A: We are a MANUFACTURER.

Q: How are the PRICES of your products?
A: Because we are a private company, the prices of our products are usually COMPETETIVE and FLEXIBLE according to the number of orders and customer needs. We endeavor to keep our prices reasonable and provide quality products and services to meet our customers' needs and budgets.

Q: Are your products CERTIFIED or INSPECTED?
A: Yes, our products are usually certified by international certification bodies or inspected by third-party inspection organisations, such as CE certification, ISO 9001 quality management system certification, etc. These certifications and inspections prove the quality and compliance of our products.

Q: Do you offer CUSTOMISED SERVICE for your products?
A: We can provide customized products according to customers' needs. Whether it is the specification, material or packaging, we can adjust and customize to meet the specific requirements of our customers to meet their particular needs.

Q: What kind of payment does your company support?
A: T/T, L/C at sight, Cash, Western Union, and other negotiable payment methods.