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นี่คือเสียงตอบรับจากลูกค้าของเรา ขอขอบคุณ บริษัท โพส แอนด์ พรีคาส ที่ให้ความเชื่อมั่นและไว้วางใจผลิตภัณฑ์ของ บริษัท สยามลวดเหล็กฯ มายาวนานกว่า 20 ปี
11-11-2022
เพราะเหตุใดงานเสาเข็มของ บี.เค.เค.ไพล์ลิ่ง ถึงโดดเด่นไม่เหมือนใคร? หาคำตอบกันได้ในคลิปนี้ ขอขอบคุณ คุณทรงวุฒิ แจ้งประสิทธิ์ (กรรมการผู้จัดการบริษัท บี.เค.เค.ไพล์ลิ่ง จำกัด) ที่ให้ความเชื่อมั่นและไว้วางใจผลิตภัณฑ์ของ บริษัท สยามลวดเหล็กฯ มายาวนานกว่า 10 ปี
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
06-06-2025
How Is PC Wire Used Differently in Post-Tension vs Pre-Tension Systems?PC Wire (Prestressed Concrete Wire) is a crucial material used to strengthen prestressed concrete. It is commonly applied in two major systems: Pre-tension and Post-tension. While they use similar materials, the method of application and the advantages of each system are distinctly different. Let’s explore the differences🔹 Pre-Tension (Before Concrete Pouring)In this system, PC Wire is tensioned before the concrete is poured into the mold. Once the wire is stretched to the required force, concrete is poured over it. After the concrete sets and gains strength, the tension is released, and the wire tries to return to its original state, which compresses the concrete.Ideal for: Factory-made precast elements such as floor planks, hollow-core slabs, and concrete beamsAdvantages: Quality can be easily controlled in a factory settingLimitations: Requires large formwork and transportation of finished components to the site🔹Post-Tension (After Concrete Pouring)In this method, ducts or sheaths are placed inside the formwork before concrete pouring. Once the concrete is cured, PC Wire is threaded through the ducts, then tensioned and anchored at both ends. Finally, the ducts are filled with grout to protect the steel and bond it to the concrete.Ideal for: Large-scale projects such as high-rise buildings, bridges, and flat slab systemsAdvantages: More design flexibility, thinner structural elements, material efficiencyLimitations: Requires skilled labor and strict on-site quality control*Both systems have unique strengths and trade-offs. Choosing the right one depends on project type, budget, and engineering requirements.At SIW, we manufacture high-quality PC Wire for prestressed concrete applications in both pre-tension and post-tension systems. Our products are certified with TIS standards and trusted in over 70 countries worldwide.hashtag#SIW hashtag#PCwire hashtag#posttension hashtag#pretension
25-10-2024
We are pleased that our chief, [Nipon nunsurakij - COO, Siam Industrial Wire], has reaffirmed the positioning of SIW's products as "SIW’s excellence is rooted in continuous improvement, sustainable practices, and expert in testing service." Nipon nunsurakij COO - Siam Industrial Wire Co., Ltd.
15-01-2025
Gen Y leadership shaping the future of organizations Naphitset Chainapong, Head of Section-Demand and Market Planning, who plays a key role in driving organizational success. “Growing up in the middle of Gen Y, I’ve witnessed the rapid evolution of technology, transitioning from the analog era to the fully digital age we live in today. This experience has shaped my mindset and serves as a fundamental basis for how I approach my work to this day. In my perspective, the transition to digital is no longer an option but a necessity. I clearly remember when I started working at SIW, we relied heavily on paper documents, and at times, the piles of paperwork were almost impossible to manage. But today, we’ve seen a significant difference. Many documents no longer need to be printed, and they have been fully integrated into a digital system. Additionally, we now use various software tools to analyze statistical data, helping us identify market demands and study consumer behavior quickly and more accurately. The result is more precise decision-making, allowing us to better meet our customers’ needs. Another equally important and trending topic is sustainability. In my perspective, it’s not just a fancy phrase but a global responsibility that every organization should prioritize. SIW has continuously developed sustainability strategies, such as controlling carbon emissions, initiating the "1 Rai Farm" project, and organizing CSR activities that foster collaboration with local communities. We’ve always believed that growth must come with a sense of responsibility toward both our communities and the world. As a Gen Y, I believe SIW benefits from the generation gap, gaining fresh ideas from younger team members and valuable experience from senior colleagues. An organization’s success doesn’t depend on one individual but comes from the synergy of all generations working together to innovate while preserving the past and continuing to develop sustainably. And finally, I believe that working in this rapidly changing era requires flexibility, open-mindedness, and collaboration from everyone. With our collective dedication, I am confident that SIW will overcome every challenge and continue to grow steadily in an ever-changing world.”
25-06-2025
What are the applications of 7-wire PC Strand?1. LNG Tank – Liquefied Natural Gas Storage Tank2. Wind Tower – Wind Turbine Tower3. Nuclear Reactor Tank – Nuclear Reactor Containment Tank4. Bonded Post Tension Bridge – Bonded Post-Tensioning Bridge System5. Beam & Column – Beams and Columns6. Bridge Girder – Bridge Girders7. Plank Girder – Precast Floor Girders8. Concrete Pile – Concrete Piles9. Hollow Core Plank – Hollow Core Slabs10. Cement Silo – Cement Storage Silo11. Precast Segmentation Box – Precast Concrete Segment Box12. Water Treatment Tank – Water Treatment TankSIW's PC Strand has been tested and certified to meet global quality standards and certifications with sales in over 70 countries worldwide. Additionally, the product is environmentally conscious, using raw steel wire with a significant proportion of recycled materials.Diameter: 7.9 - 18 mmStandards: TIS 420-1997, AS/NZS 4672-2007, ASTM A416-2016, ASTM A416-2017, ASTM A886-2012, BS 5896-2012, prEN 10138-2012, JIS G 3536-2014, LNEC E 453-2020, XPA35-04503, MS 1138-4-2007, SNI 1154-2011, TSE 5680-1998, IS 14268-1995, GB/T 5224-2014, NBR 7483, UNE 36094-1997, SFS 1265-3, SS 212553-2013, NEN 3868, NBN I 10-003, UNI 7676-2016Contact us:Email: marketing@siw.co.thTel: (+66) 81-170-2571 hashtag#PCStrand
08-06-2022
เรามาทำความรู้จักกับลวดเหล็กสปริง กันดีกว่ามีกี่ชนิด ลวดสปริงสามารถแบ่งออกเป็นชนิดต่าง ๆ ดังนี้ 1. Hard Drawn Steel Wire - (JIS G 3521) ลวดเหล็กที่ผลิตภายใต้กระบวนการรีดเย็น โดยใช้เหล็กลวดที่มีส่วนผสมของคาร์บอนสูง ที่เหมาะกับการใช้ผลิตในหลากหลายอุตสาหกรรม เช่น ยานยนต์ เครื่องจักรกล เครื่องใช้ไฟฟ้า เป็นต้น โดย Hard Drawn Wire แบ่งเป็น 3 เกรด คือ SWA SWB และ SWC แต่ละเกรดมีคุณสมบัติที่แตกต่างกันไปขึ้นอยู่กับประเภทการใช้งาน 2. Piano Wire - ลวดเปียโน (JIS G 3522) ลวดเปียโนผลิตจากกระบวนการรีดเย็น โดยใช้ลวดเหล็กที่มีส่วนผสมคาร์บอน ด้วยคุณภาพที่ดีนี้ ลวดเปียโนจึงนำมาใช้ในการผลิตสปริงที่มีคุณภาพสูงเป็นพิเศษ เช่น สปริงในอุตสาหกรรมยานยนต์ โช๊ค เครื่องยนต์ อาทิ สปริงวาวล์ สปริงเบรค สปริงคลัชท์ หรือ เครื่องใช้ไฟฟ้าบางประเภท เป็นต้น ซึ่งลวดเปียโนสามารถแบ่งเกรดเป็น SWPA, SWPB และ SWPV โดยแต่ละเกรดมีความเหมาะสมในการใช้งานที่แตกต่างกันไปตามประเภทงาน
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