| Customization: | Available |
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| Certification: | ISO |
| Surface: | Spiral |
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Specifications Introduction
Prestressed steel wire represents a comprehensive category of steel wires crafted from premium high-carbon steel plates. These are meticulously processed through acid washing, cold drawing, or undergo a stable treatment post-phosphating. Based on advanced production techniques, they are classified into two distinct types: cold-drawing steel wire and stress-eliminating steel wire. Each type offers unique surface conditions, enabling further classification into plain steel wire, indentation steel wire, and spiral rib steel wire. Cold drawing wire is particularly distinguished for its application as a steel wire directly utilized in prestressed concrete, following the cold drawing process.
Raw Material Requirements
The fundamental raw materials pivotal for prestressed concrete encompass high-quality carbon steel wire rods like SWRH77B or SWRH82B. The primary criteria for these wire rods include stringent specifications such as size, shape, weight, and permissible deviations. Other critical factors include grade and chemical composition, the employed smelting method, delivery condition, mechanical properties, the presence of a decarbonization layer, microstructural attributes, surface quality, and any special requirements. All these aspects combine to assure the steel wire's suitability for demanding applications.
The cooling process is expertly managed using Sterem technology, which achieves an impressive sotenization rate exceeding 85%. Typically, coils produced via this standard process adequately fulfill the rigorous production demands necessary for prestressed concrete steel wire and steel strand applications, ensuring their superior performance and reliability.
Standards of Steel Wire for Prestressed Concrete
The applicable and current standards are GB/T5223-2014 Prestressed concrete steel wire is meticulously designed according to prestigious standards such as ASTM A421-16, ASTM A881/A881M -2005, BS5896-2012, EN10138-2:2009, GOST 7348-81. Additionally, it conforms to TU U27.3-136-004-2003, DSTU ISO 6934-2, GOST 7348-81, DSTU ISO 6934 - 2, and ABNT NBR 7482:2008, among others.
Applications for the Reinforcement of Concrete Constructions
The utilization of steel wire for prestressed concrete spans a diverse array of applications, including single-story and multi-story residential buildings, and infrastructure such as highway and railway bridges, sleepers, and electric poles. They are also integral to structures like pressure water pipes, storage tanks, and water towers. Their scope extends to modern high-rise and subterranean constructions, hydraulic facilities, marine structures, airport buildings including runways and terminals, and pressure vessels within nuclear power plants. Embracing a wide array of industries, these wires cater to super-tall, super-span, super-volume, super-large area projects, and manage overweight loads, accommodating various shapes and functions in structural engineering.
Ranges of Wire Diameter
The diameter range of these wires is admirably broad, spanning from 3.00 mm to 12.00 mm, ensuring versatility for diverse applications.
Ranges of Strength
The strength range is impressively robust, from 1470MPa to 1860MPa, attesting to their formidable capacity and reliability.
| HELICAL PC WIRE | ||||
| Nominal Dia.(mm) | Tensile Strength (MPa) | Relaxation (1000h) | Min. Elongation at Max. Load | Standards |
| 3.0, 4.0, 5.0, 6.0, 7.0, 7.5, 8.0, 9.0, 10.0, 11.0, 12.0 | 1470,1570,1670,1770,1860 | Low relaxation≤2.5% | Agt≥3.5% | GB/T5223, ASTMA421, BS5896 |
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.
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