EPCW-PC-WIRES-STRANDS

We Connect The World www.epcw-eg.com PC WIRES & STRANDS Member of.

EPCW.

ABOUT US – EPCW SINCE 2019 OUR CAPABILITIES We started with a clear vision: To position the Egyptian market as a global leader in prestressed concrete wires and strands — driven by innovation, determination, and the dedication of our skilled team. EPCW Factory has entered the market of prestressed high-tensile steel wires and strands, committed to serving the construction industry with premium-quality products fo Concrete pipes , Railway sleepers , Bridges , Slabs and more infrastructure application. We focus on three pillars of sustainability Human , Environment and Technology Facility: 20,000 m² advanced production facility. Technology: Fully automated systems for precision and consistency. Workforce: +200 qualified engineers and technicians. Product Specialization: High-carbon steel wires and strands, conforming to international and customized specifications. www.epcw-eg.com 3.

CERTIFICATIONS PC WIRES & STRANDS EPCW is certified for compliance with international standards in : ISO 9001:2015 – Quality Management Systems ISO 14001:2015 – Environmental Management Systems ISO 45001:2018 – Occupational Health & Safety Management Systems THESE CERTIFICATIONS REFLECT OUR COMMITMENT TO OPERATIONAL EXCELLENCE, EMPLOYEE WELL- BEING, AND ENVIRONMENTAL SUSTAINABILITY..

Global Reach GLOBAL STRENGTH LOCAL EXPERTISE EPCW is proud to be a trusted exporter of prestressed steel wires to more than 25 countries worldwide, spanning the Middle East, Africa, Asia, and Europe. Our international clients rely on us for consistent quality, timely delivery, and full compliance with global standards. By building strong logistic partnerships and adapting to each market's technical and regulatory requirements, we ensure that our products meet the demands of major infrastructure and industrial projects around the globe. www.epcw-eg.com 5.

OUR PRODUCTS PC STRANDS (Prestressed Concrete Strands) PC Wires (Prestressed Concrete Wires) At EPCW, we specialize in manufacturing high-quality prestressed steel wires and strands that are engineered for strength, durability, and compliance with interna- tional standards. Our products are trusted in major infrastructure and construction projects across the globe. We produce 7-wire strands made from high-carbon steel. These strands are used extensively in prestressed and post-tensioned concrete applications such as: Bridges and overpasses Wind towers and silos Precast concrete beams and slabs Metro and railway structures Our PC wires are available in two main types: a) Smooth Wire Smooth-surfaced round wires ideal for precast elements such as concrete poles, pipes, and hollow-core slabs. Their consistent surface ensures easy tensioning and bonding. b) Indented Wire These wires feature surface indentations for enhanced grip and bond strength. They are commonly used in railway sleepers, concrete pipes, and other high-load appli- cations. 6.

KEY APPLICATIONS Our products support a wide range of structural and infrastructure uses, including: Railway sleepers Concrete pressure pipes � Industrial�flooring�and�silos Precast and post-tensioned elements Tunnels, girders, and bridge components www.epcw-eg.com 7.

Strand Gauge Sizes Steel Grade Structures Tensile Strength Coil Weight 9.5 mm, 12.7 mm, 15.2 mm, 15.7 mm (others available upon request) EN C82D2 7-wire Strand 2.5 – 3.5 tons • 250 ksi (1725 MPa) • 270 ksi (1860 MPa) • Other grades (e.g., 1770 MPa) available per interna- tional standards PC STRANDS (Prestressed Concrete Strands) Overview Applications Key Features Plain PC Strand, also known as Plain Prestressed Concrete Steel Strand, is a twisted bundle of high-carbon steel wires — typically 3 ,2, or 7 wires — without surface indentations. Engineered for high tensile strength and low relaxation, this strand is ideal for reinforcing various concrete structures. • High load-bearing capacity • Excellent�flexibility�and�elongation • Low relaxation for long-term performance • Compliant with international standards (ASTM, EN, BS, etc.) • Bridges�and�flyovers • Dams and tunnels • Highway and railway sleepers • Multi-story industrial buildings • Precast concrete elements 8.

Quality Control at EPCW Inspection & Testing Procedures Mechanical Testing Applicable Standards At EPCW, quality is not just a checkpoint — it’s embedded in every stage of our production. Our Quality Control System follows stringent inspection and testing procedures starting from�raw�materials�to�final�product�delivery,�ensuring�full� compliance with international standards and customer specifications. All tests are conducted using advanced online monitoring systems and are validated with detailed laboratory testing protocols. We conduct a comprehensive range of mechanical tests to verify the performance of High-Stress Relieved Prestressed Concrete (PC) Wires and Strands: These�tests�confirm�that�the�mechanical�properties�comply� with both international standards and custom client requirements. • ASTM A416 / A416M • ASTM E328 • ASTM A370 • BS 5896 • BS EN ISO 3-15630 • Or�other�client-specified�standards • Tensile Strength Test • Elongation Test • Torsion Test • Bending Test • Stress Relaxation Test (1000 & 200 hours) www.epcw-eg.com 9.

Production Process PC Strands 1.Wire Rod Descaling & Pre-Coating 2. Wire Drawing Process Our production process is designed for precision, consistency, and durability — leveraging modern techniques and strict process control. 1.1 Descaling: All wire rods are thoroughly descaled to remove mill scale (iron oxide). This is typically done via chemical treatment or mechanical methods. 1.2 Pre-Coating: After descaling, rods are treated with a textured carrier coating — most commonly Zinc Phosphate (ZnPO4) — to enhance lubricant adherence during drawing. Other coating options may include polymers, lime, borax, etc. 2.1 Multi-Pass Cold Drawing: Wire rods are passed through a series of 9–8 carbide dies, reducing their cross- sectional area by up to %85. This cold-working process enhances strength while preserving material integrity. 2.2 Lubrication System: During the drawing process, wires pass through dry granular lubricants — typically sodium stearate or calcium stearate — which: • Minimize friction • Prevent carbide die wear/failure • Regulate surface temperature 2.3 Process Benefits • Superior mechanical strength • Uniform wire surface quality • Extended die and equipment lifespan • Enhanced consistency in strand structure 10.

3. Stranding 4. Rewinding & Packaging Assembly: Seven wires (1 central + 6 outer) are loaded into the stranding machine. Stranding Parameters: Twist rate and lay length controlled to comply with ASTM A416. Heat Treatment: The formed strand is thermo-mechanically treated at ~°375C under tension (~%40 of its UTS) to relieve internal stress, increase yield strength, and reduce relaxation. Water Quenching: The strand is quenched post-treatment to lock in elongation and clean off lubricants. Master Coil Size: Produced coils typically weigh between 20–27 tons per run. Each master coil undergoes a full compliance inspection, including: • Ultimate Tensile Strength (UTS) • Total Elongation at Break • Yield Point @ %1 Extension • Diameter�Verification • Lay Pitch (Strand Twist Length) • Modulus of Elasticity • Relaxation Testing (after process changes or annually) www.epcw-eg.com 11.

Technical Specifications 7-Wire PC Strands Technical data according to ASTM A416/416M 7 Wire strand – Dimensions and properties According to BS 5896 Standard EPCW supplies high-performance 7-wire prestressed concrete (PC) strands in multiple grades and sizes, engineered for high tensile strength, low relaxation, and consistent performance. All strands are manufactured in accordance with BS 5896 and other in- ternational standards. A) The modulus of elasticity may be taken to be 195 GPa (kN/mm2). B) The nominal mass per metre is calculated from the nominal cross-sectional area and a density of 7.81 kg/dm3. C) The specified characteristic value of the 0.1% proof force is calculated for all grades and diameters as 88% of the specified characteristic value of the maximum force. 12.

CONDITIONING & PACKAGING Coil Packaging Options Bars for Railway Sleepers We offer three standard coil sizes to suit different project and handling requirements: Our straightened bars are manufactured from high-tensile, stress-relieved steel wire. They�are�cut�to�customer-specified�lengths�and�conform�to: Standard: EN 10138-2 Form: Available in coils or bundles of pre-cut bars from the same coil www.epcw-eg.com 13.

EPCW EGYPTIAN PRESTRESSE2. -CONCRETEWRES CO..

PC Wires (Prestressed Concrete Wires) Smooth Wire Our PC wires are available in two main types: a) Smooth Wire Round, smooth-surface wires ideal for precast elements like poles, pipes, and slabs. Easy to tension and bond. b) Indented Wire Wires with surface indentations for stronger grip. Used in railway sleepers, and heavy-load applications. Product Overview Applications Key Advantages Our PC Wires are manufactured from hot-rolled, high-carbon steel wire rods. After descaling, the wire is cold-drawn and undergoes thermomechanical stress-relief to achieve high strength and durability. These wires are used to prestress concrete — a process that improves the concrete’s capacity to handle tensile stresses and heavy structural loads. • Longer beam spans with fewer column • Material savings in concrete and steel • Faster installation and reduced construction time • Reduced structural weight compared to conventional concrete • Minimized cracking and increased durability • Enables construction of long-span bridges without temporary supports�—�reducing�environmental�and�traffic�disruption • Concrete pipes • Precast slabs and tanks • Building beams and girders • Railway sleepers • Long-span prestressed structures www.epcw-eg.com 15.

PC Wire in Concrete Pipes PC Wire in Railway Sleepers PC Wire in Bridges & Buildings PC hard-drawn steel wire is a key reinforcement material in the production of prestressed concrete pipes. In this application, the wire is helically wrapped under controlled mechanical tension around the pipe, without the use of drawing dies. This tensioning process improves the pipe’s structural strength and internal pressure resistance. • PC Wires in Railway play a critical rule in construction and durability of railway tracks. • PC Wire apply compressive force to the concrete sleepers before the sleeper is loaded�by�train�traffic. PC strand is used for prestressing concrete�structures�in�bridges,�flyovers,� and high-rise buildings. It allows for larger spans, reduced material use, and enhanced structural integrity. 16.

We operate with advanced production lines and high-precision testing facilities, designed in collaboration with global leaders and technical consultants. Our focus includes: • Continuous R&D investment for product innovation • Commitment to environmental protection • Customer-centric development for maximum satisfaction • Maintaining international quality standards at every production stage MODERN TECHNOLOGY & INNOVATION AT EPCW www.epcw-eg.com 17.

Manufacturing Process PC Wires 1. Descaling & Pre-Coating All incoming wire rods undergo descaling to remove mill scale (iron oxides). This process is conducted either: • Chemically, or • Mechanically using a shot blasting line Afterward, rods are coated with a carrier layer to help lubricants adhere during wire drawing. The most common coating is Zinc Phosphate (ZnPO4). Alternatives include borax, lime, or custom solutions. 2. Wire Drawing Wire�rods�are�drawn�through�a�sequence�of�7�to�9�carbide�dies�(depending�on�final� diameter). • Cold-working process with tightly controlled conditions • Cross-sectional reduction: up to 85% • Tensile strength increase: from ~1050 MPa (raw rod) to >1600 MPa after drawing • Enhanced by work hardening 3. Stabilization (Stress Relieving) Drawn wires are passed through a thermo-mechanical stabilization line, where they are: • Heated to ~380°C ± 25°C • Held under tension equal to 40–50% of their UTS (Ultimate Tensile Strength) This process: • Relieves residual drawing stresses • Increases yield strength • Reduces relaxation losses • Results in consistent modulus of elasticity 18.

Plain 3-sided deformed (chevron) Production range & technical data The dimensions and properties of the wires are put across table 1 to 8 Surface state Plain (Smooth) or Indented Specification�of�Indentation� Conformity with standards BS5896 For�example�specified�indentations�dimensions�in�mm�for�indent�type�T1�(also�known�as� triple indent) as below table Table 1 and Chemical composition Table 2 Indentation : www.epcw-eg.com 19.

Surface state Specification�of�Indentation� Conformity with standards BS5896 Note : • The modulus of elasticity may be taken to be 205 GPa (kN/mm2). �•�The�specified�characteristic�value�of�the�0.1%�proof�force�is�calculated�as�88%�of�the�specified�characteristic�value�of�the�maximum� force, except Y1860C which is 89% Table 4 : ASTM A421 for Uncoated Stress-Relieved Steel Wire for Prestressed Concrete Table 5 : BS 5896 20.

Note : • The modulus of elasticity may be taken to be 205 Gpa(KN/mm3) •�The�specified�characteristic�value�of�the�0.1%�Proof�force�is�calculated� •�For�grade�y1570C,�with�diameter�over�8�mm�as�87%of�the�specified�value�of�the�maximum�force�for�Y1860C�is�89%�and�for�other� grades and diameters is 88% min. Tensile Strength based on nominal wire diameter Table 6-1 : ASTM A648 for concrete pipe Stress relieved steel wire Table 6-2 : Chemical requirements for Classes II and III ASTM A648 Table 7 : EN 10138-2 for Stress relieved steel wire www.epcw-eg.com 21.

Table 8 : EN 10138-2 for Stress relieved steel wire –For highly straightened cut to length wires Follow Table 8: EN 10138-2 for Stress relieved steel wire –For highly straightened cut to length wires • Ruptures in “arrow-head” are prohibited. In case of dispute the percentage reduction of area shall be determined and�the�value�shall�be�2�25�%�for�plain�wire�and�≥�20�%�for�indented�wire. • The requirement for 70 % Fma is mandatory. A requirement for a value of 80 % Fma may be agreed between purchaser�and�manufacturer�for�specific�applications. • Class R2 shall only be used for highly straightened cut to length wires with maximum bow height of 4 mm/length. • When regulatory requirements for stress corrosion exist the additional test solution B for�initial�type�testing�defined in�EN�ISO�15630-3�shall�be�used�as�defined�in�prEN�10138-1. • Where there are no regulatory requirements, the products may be assigned as Class CO • For type T2, the minimum number of reverse bends shall be two 22.

EPCW EGYPTIAN PRESTRESSED CONCRETE WIRES CO. We Connect The World.

Established in 2019, EPCW specializes in manufacturing high-quality prestressed high-carbon steel wires and strands for concrete pipes, railway sleepers, bridges, and other structural applications. Operating from a 20,000 m² facility with advanced technologies and a skilled team, we are committed to excellence through innovation, sustainability, and precision—meeting both international standards and custom client specifications. www.epcw-eg.com +20554413000 +201002144112 Plot No. 151 - Industrial Zone A5 - 10th of Ramadan City - Egypt [email protected] Member of.