| Customization: | Available |
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| Certification: | ISO |
| Surface: | Spiral |
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Production Process of Spring Steel Wire
Material Selection and Pretreatment: We begin our meticulous production with only the finest high carbon steel or alloy steel, revered for their outstanding elasticity and exceptional strength. During the preprocessing phase, we engage in precise heating and rolling techniques, which significantly enhance the microstructure and mechanical properties of the steel, establishing the foundation for extraordinary quality and performance.
Step One
Surface Treatment: In this critical phase, we apply advanced techniques such as acid pickling phosphating or mechanical methods. These are carefully chosen to effectively eliminate iron oxide scale, create a protective phosphating film, or achieve a flawlessly smooth surface. Particularly for spring steel wires demanding superior fatigue life-like valve spring steel wires-peeling the coil is essential to greatly reduce surface imperfections, thereby enhancing durability and performance.
Step Two
Wire Drawing: The intricate wire drawing process reduces the diameter of the steel wire through a series of cold drawing steps, significantly boosting its strength and hardness. Ensuring optimal quality for high-strength spring steel wire requires maintaining an outlet temperature below 150ºC during each drawing stage to prevent strain aging and torsional fractures. Adequate lubrication and cooling are vital to manage temperature increases effectively.
Heat Treatment: This fundamental phase involves quenching and tempering processes. Carbon steel spring wires typically undergo lead bath quenching to develop a refined pearlite structure. On the other hand, alloy steel wires gain advantages from annealing heat, while stainless steel wires are treated with solid solution processes. The oil quenching method may also incorporate water quenching or water quenching with polymers to achieve optimal results, ensuring excellent mechanical properties.
Step Three
Forming: Utilizing state-of-the-art precision equipment, we expertly shape the drawn steel wire into a wide range of spring configurations, including compression springs, tension springs, and more, addressing various application requirements with utmost precision and reliability.
Inspection and Packaging: Through comprehensive and rigorous testing, we confirm that each spring steel wire adheres to stringent standard specifications. Finally, secure packaging is employed to preserve product integrity and ensure safe transportation and storage, safeguarding against potential damage.
Spring steel wire is an expertly crafted precision wire utilized in creating springs or model parts. Its versatile applications include use in mattress springs, subtractors, suspension springs, engine valves, and camera shutters. Quality requirements vary widely among different types, such as raw drawn, lead quenched, galvanized, and oil quenched spring steel wire, each designed to meet specific demands and performance criteria.
| Steel Grade GB Standard |
Carbon % |
Silicon % |
Manganese % |
Phosphorus % |
Sulphur % |
Chromium % |
Nickel % |
Cuprum % |
| 60# | 0.60-0.61 | 0.18-0.22 | 0.52-0.59 | 0.012 | 0.007 | 0.06-0.07 | 0.05 | 0.18 |
| 65# | 0.65 | 0.21 | 0.56 | 0.013 | 0.008 | 0.05 | 0.04 | 0.14 |
| 65Mn | 0.60-0.70 | 0.10-0.25 | 0.70-1.00 | 0.030 | 0.030 | 0.20 | 0.20 | 0.25 |
| 70# | 0.69-0.71 | 0.19-0.21 | 0.53-0.58 | 0.010-0.012 | 0.003-0.006 | 0.01-0.05 | 0.02-0.04 | 0.04 |
| 72A 72B | 0.72 | 0.19 | 0.71 | 0.013 | 0.006 | 0.02 | 0.02 | 0.03 |
| 80# | 0.80-0.81 | 0.22-0.24 | 0.59-0.76 | 0.008 | 0.004 | 0.04 | ||
| 82A 82B | 0.82 | 0.24-0.25 | 0.76-0.77 | 0.011-0.014 | 0.004-0.007 | 0.17-0.17 |
Tianjin Kaishuo Weiye Steel Co., Ltd. proudly stands as a beacon of brilliance and innovation within the global steel manufacturing sphere. As a staunchly dedicated and highly professional manufacturer, we excel across a comprehensive spectrum of steel production, showcasing an unrivaled prowess in galvanized steel coils, pre-painted galvanized steel coils, and an extensive range of stainless steel products like sheets, pipes, profiles, bars, and coils. Situated at the heart of our operations in Tianjin, our headquarters and four strategically positioned branch offices solidify our influential presence across China. Leveraging years of invaluable industry experience, we have forged powerful strategic alliances with renowned stainless steel titans such as TISCO, BAOSTEEL, and POSCO (ZPSS), solidifying our position at the pinnacle of premier-grade steel supply. Our vast inventory, surpassing a remarkable 2,000 tons and encompassing over 800 unique specifications, underscores our capability and readiness to serve. Our premium, high-quality products have gained widespread acclaim, not only captivating every corner of China but also resonating with international markets, reaching esteemed locales like Saudi Arabia, Yemen, the UAE, Syria, Kuwait, Lithuania, Azerbaijan, Russia, Indonesia, Vietnam, Egypt, Malaysia, the Philippines, Bolivia, and Colombia. Our unwavering dedication to the relentless pursuit of excellence remains steadfast and resolute.
With an unwavering commitment to stringent quality control and exceptional customer service, our team of seasoned professionals stands ready to fulfill your every need, ensuring absolute satisfaction. We are fervently dedicated to extending our global reach, eagerly anticipating the establishment of enduring partnerships. Should you envision a collaborative future with us, we warmly extend an invitation to reach out and explore potential opportunities. We cordially welcome you to visit our state-of-the-art production facilities at your convenience, promising you a captivating insight into our cutting-edge operations.
1. Tianjin Kaishuo Weiye Steel Co., Ltd. stands at the forefront of innovation with cutting-edge manufacturing facilities strategically positioned in Shandong, Hebei, and Zhejiang, China. Spanning a remarkable 70,000 square meters each, these facilities are outfitted with state-of-the-art processing equipment, including large shearing machines, circular shearing machines, straightening machines, annealing furnaces, and advanced punching and shearing production lines, ensuring that every product meets the highest standards of excellence.
2. With an impressive annual inventory surpassing 10,000 tons, we are exceptionally equipped to fulfill the demands of our market clients at any moment. Our extensive global sales network extends to over 100 countries, successfully exporting to regions such as Brazil, Peru, Cameroon, Senegal, Ghana, Botswana, Samoa, Russia, Thailand, India, and many more, demonstrating our commitment to international reach and customer satisfaction.
3. Our dedication to the highest quality standards is evident in our prestigious certifications, including ISO9001, SGS, JIS, and BV, among others. Each item in our product line is accompanied by a thorough inspection report, providing you with peace of mind and confidence in our unwavering commitment to excellence in every product.
4. With a robust and generous inventory, we ensure that your orders are dispatched promptly and efficiently. Our team is available 24/7, supported by a dedicated sales and after-sales service team committed to addressing your inquiries and challenges with speed and expertise.
5. Our meticulous quality control system empowers us to offer custom solutions tailored to your precise specifications. Experience the perfect blend of competitive pricing and premium quality. Contact us today to discover exclusive offers and more!
1. who are we?
We are based in TianJin, China, start from 2021,sell to Africa(20.00%),Mid East(15.00%),South America(10.00%),Eastern Europe(5.00%),Southeast Asia(5.00%),Oceania(5.00%),Southeast Asia(10.00%),Central America(5.00%). There are total about 11-50 people in our office.
2. how can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;
3.what can you buy from us?
Cold Rolled Steel Coil,Steel Pipe,Galvanized Steel Coil,Stainless Steel Plate/Sheet,Seamless Steel Tube
4. what services can we provide?
Accepted Delivery Terms: FOB,CFR,CIF,EXW,FAS,CIP,FCA,CPT,DEQ,DDP,DDU,Express Delivery,DAF,DES;
Accepted Payment Currency:USD,EUR,JPY,CAD,AUD,HKD,GBP,CNY,CHF;
Accepted Payment Type: T/T,L/C,D/P D/A,MoneyGram,Credit Card,PayPal,Western Union,Cash,Escrow;
Language Spoken:English,Chinese,Spanish,Portuguese,French,Russian
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