What is PC Wire Used For ?

Why choose Testing Service from SIW ?

10-11-2025

Why choose Testing Service from SIW ?Be confident in every test with world-class standards from SIW Testing Service.✔️ Internationaly RecognizedSiam Industrial Wire Laboratory Granted Standalone NATA Accreditation.✔️ Meet Standard in 70+ CountryCertified by over 100 world-class standards organizations.✔️ Convenient and Cost-EffectiveComprehensive services that save you both time and cost, with testing formats customizable to your specific needs.✔️ High-Perfermance MachineEquipped with modern testing machines, such as:Tensile Testing, Fatigue Testing, Relaxation Testing, Salt Spray Testing และ Chemical Analysis.Complete quality assurance that meets the needs of every industry, providing accuracy, speed, and value all in one place! ⚙️#SIW #TestingService #InternationalStandards #NATA #EPD #SustainableConstruction

SIW with EV forklifts 🌏♻️

21-04-2026

Driving business forward while caring for our planet 🌏♻️SIW has begun integrating EV forklifts into operations, powering a greener warehouse and taking the first step toward an electric-driven logistics system.🌳 Reduces CO₂ emissions by 33,918 kg per year🌳 Equivalent to planting 1,542 trees annuallyLower environmental impact, reduced greenhouse gases, and a cleaner future, because every shift toward clean energy is a meaningful step toward sustainability.📞 +66 61-178-0844Line: @siwthailandWebsite: https://www.siw.co.th/th#EVForklift #GreenLogistics #CarbonReduction #Sustainability #PCStrand #PCWire

Standard is our promise

29-07-2025

At SIW, quality is not just a standard — it's our promise.We take pride in producing high-quality products tailored to meet our customers’ unique needs.With a strong focus on precision and rigorous quality control, we ensure that our products empower you to build with confidence and excellence.Mr. Worachoke ChavengpojHead of Department-Production

What is PC Wire?

02-01-2025

PC Wire (Prestressed Concrete Wire) is a high-strength steel wire designed for use in construction projects that require reinforced concrete structures. The term "Prestressed" refers to the process of applying tension to the steel wire before pouring concrete around it. This technique enhances the concrete's ability to withstand tensile forces, effectively preventing cracks and ensuring structural durability. American Standards for PC Wire In the United States, the production and use of PC Wire must adhere to industry standards, particularly those established by the American Society for Testing and Materials (ASTM). Key standards include: Material Specifications: PC Wire is typically manufactured in accordance with ASTM A421 or ASTM A416, which define the requirements for high-carbon steel wires and strands used in prestressed concrete. Strength and Performance: These standards specify tensile strength, yield strength, and relaxation properties, ensuring the wire can handle high stress over extended periods. Dimensional Tolerances: Strict guidelines for diameter, straightness, and length ensure consistency and compatibility in construction projects. Testing Requirements: ASTM standards mandate rigorous testing, including tensile strength, elongation, and stress-relaxation tests, to guarantee performance and durability. Compliance with ASTM standards ensures that PC Wire meets the safety and quality requirements for critical infrastructure projects, giving engineers and contractors confidence in its use. Advantages of PC Wire High Strength: PC Wire offers superior tensile strength compared to regular steel, making it ideal for high-durability structural applications. Reduced Structural Weight: Its strength allows for a reduction in the volume of materials required for construction. Long Service Life: Reinforcing concrete with PC Wire minimizes the risk of cracking, prolonging the structure's lifespan. Standard Compliance: Manufacturing under ASTM standards ensures quality and safety in construction projects. Applications of PC Wire Bridges and Overpasses: Used to reinforce beams, increasing strength and minimizing cracking. Precast Concrete Slabs: Essential in high-rise building construction for enhanced load-bearing capacity. Piles and Retaining Walls: Suitable for structures that need to withstand soil or water pressure. Critical Infrastructure Projects: Commonly used in sports stadiums, large buildings, and underground structures requiring high stability. PC Wire is an indispensable material for modern construction, particularly in projects focused on strength, durability, and compliance with industry standards. Where to Purchase PC Wire? SIW is the largest producer and supplier of PC Wire in Southeast Asia, certified to meet international standards, including ASTM A421 and ASTM A416, and serving over 70 countries worldwide. With more than 50 years of experience, SIW delivers high-quality PC Wire to support a wide range of construction projects globally. In addition to its commitment to quality and reliability, SIW also prioritizes environmental sustainability. The company holds an Environmental Product Declaration (EPD) certification, ensuring its products are eco-friendly and contribute to sustainable construction practices. Choose SIW for high-quality PC Wire that meets global standards while supporting environmentally responsible solutions. https://www.siw.co.th/en/product-detail/pc-wire

ทำไมตะแกรง Wire Mesh ต้องสยามลวดเท่านั้น

08-06-2022

เมื่อพูดถึง “ไวร์เมช (Wire Mesh)” หลาย ๆ คนได้ยินชื่อนี้แล้ว อาจจะสงสัยว่ามันคืออะไร ซึ่งคนส่วนใหญ่จะเคยเห็นและรู้จักกันในภาพลักษณ์ที่เป็นตะแกรงเหล็ก แบบแผ่น หรือเป็นม้วนใหญ่ ๆ ตามไซต์งานก่อสร้างต่าง ๆ ไวร์เมช (Wire Mesh)หรือ ตะแกรงเหล็กไวร์เมช ที่เรามักได้ยินกันบ่อยๆนั้น รู้หรือไม่ว่ามันคืออะไร ตะแกรงเหล็กไวร์เมช (Wire Mesh) คือ ตะแกรงเหล็กกล้าเชื่อมติดเสริมคอนกรีต ผลิตจากลวดเหล็กรีดเย็น (Cold Drawn Steel Wire) นำมา อาร์คเชื่อมติดกันด้วยไฟฟ้าทำให้จุดทุกจุดหลอมละลายเป็นเนื้อเดียวกัน มีขนาดเส้นลวดขนาดต่างๆตั้งแต่ 4 มม. - 12 มม. และระยะห่างของเส้นลวดหรือที่นิยมเรียกว่า @ มีหลายขนาด เช่น 10*10 ซม / 15*15 ซม. / 20*20 ซม. / 25*25 ซม. / 30* 30 ซม. 40*40 ซม. / 50*50 ซม. สามารถตัดเป็นแผงได้ตามความต้องการโดยไม่เสียเศษเหล็ก จะใช้แทนการผูกเหล็กเส้นธรรมดาทั่วไปเป็นอย่างดี ทำให้ประหยัดเวลา ประหยัดเงิน และแรงงานได้มาก และมีความสม่ำเสมอของตะแกรงที่แน่นอน อีกทั้งยังช่วยยึดเกาะคอนกรีตไม่ให้แตกร้าวง่าย ไวร์เมช จึงเป็นที่นิยมใช้กันอย่างแพร่หลายในอุตสาหกรรมการก่อสร้างนั่นเอง

Hollow Core Slab VS Regular Slab 🏗️

06-01-2026

Hollow Core Slab VS Regular Slab: How to Choose for Cost-Effectiveness and Efficiency? 🏗️Hollow Core Slab is made from prestressed concrete using PC Wire and are carefully checked at the factory to meet standards. They are lighter than regular concrete floors, which makes them more cost-effective by reducing the weight on beams, columns, and foundations. Because they are factory-made, hollow core slab are quick to install, saving time on rebar work and speeding up construction.PC Wire from SIW is high-quality and made for prestressed concrete. It works for all types of hollow core slabs, from regular buildings to large projects, giving you confidence in the strength and safety of your structure 🏢✅#PCWire #PrestressedConcrete #SIW #ConcreteSlabs #Construction

SIW-Testing Service Center for Prestressed Steel Wire Quality Testing

16-08-2024

Now Open!! SIW-Testing Service Center for Prestressed Steel Wire Quality Testing Perfect for manufacturers or users of PC Wire and PC Strand who require quality test results according to various standards. With over 30 years of expertise, SIW’s lab specializes in prestressed steel wire quality testing. Convenient, Fast, and Cost-effective ISO/IEC 17025 certified by NATA (National Association of Testing Authorities, Australia) Detailed, Clear, and Traceable Reports at Every Step, with Analysis and Improvement Suggestions Modern Equipment with High Efficiency and Precision of Over 99.95% Flexible Testing Customization Based on Client Requirements, Including Specific Tests   Service Information: 1. Fatigue Testing Machine Brand: Zwick Roell, Model: HA500 Testing Standards Supported: AS/NZS 4672.1, AS/NZS 4672.2, BS 5896, LNEC E 542, LNEC E 453, ISO 15630 Part 3, TIS 95-2540, TIS 420-2540 PC Wire: Maximum Load 500 kN, Sample Diameter 5 – 22 mm PC Strand: Maximum Load 500 kN, Sample Diameter 5 – 22 mm Deformed Bar: Maximum Load 500 kN, Sample Diameter 5 – 40 mm 2. Relaxation Testing Machine Testing Standards Supported: AS/NZS 4672.1, AS/NZS 4672.2, ASTM A416/A416M, ASTM A421/A421M, ASTM A881, BS 5896, ISO 15630-3, JIS G3536, TIS 95-2540, TIS 420-2540 PC Wire: Maximum Load 300 kN, Sample Diameter 4 – 9 mm PC Strand: Maximum Load 500 kN, Sample Diameter 9.3 – 18.0 mm   Service fees for wire testing by the Testing Service Center Why Choose SIW - Testing Service Center Contact Us: >>Click<<

Forging Ahead in Steel Wire with Cutting-Edge Innovation and a Strong Commitment to a Sustainable Tomorrow.

28-08-2024

     We are thrilled to introduce our new Managing Director, who brings a wealth of experience and a shared vision for the future. As we continue to push the boundaries of excellence, our MD reaffirms our unwavering dedication to innovation and sustainability in the steel wire industry.        “SIW: Forging Ahead in Steel Wire with Cutting-Edge Innovation and a Strong Commitment to a Sustainable Tomorrow.” Srivatson C. Managing Director - Siam Industrial Wire Co., Ltd.

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