| 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 commence with the crème de la crème of high carbon steel or alloy steel, celebrated across the industry for their remarkable elasticity and formidable strength. This preprocessing phase meticulously involves heating and rolling, profoundly refining the microstructure and mechanical properties, setting the stage for unparalleled quality and performance. Each step is carefully executed to ensure the caliber of our spring wire meets and exceeds expectations.
Step One
Surface Treatment: In this meticulous phase, we employ sophisticated techniques such as acid pickling phosphating or mechanical strategies. These expertly selected methods are designed to eradicate iron oxide scale, establish a robust protective phosphating film, or attain an immaculate smooth surface. Particularly for spring steel wires that require an elevated fatigue life, such as valve spring steel wires, the coil must be expertly peeled to significantly diminish surface defects, ensuring superior durability and performance.
Step Two
Wire Drawing: The wire drawing process skillfully reduces the steel wire's diameter through successive cold drawing stages, substantially enhancing its strength and hardness. For high-strength spring steel wire, maintaining the outlet temperature below 150 ºC during each drawing phase is vital to avert strain aging and torsional fractures. Effective lubrication and cooling are paramount, playing a crucial role in regulating temperature increments and ensuring the wire's structural integrity.
Heat Treatment: This indispensable phase encompasses quenching and tempering, which are vital for achieving optimal performance. Carbon steel spring wires typically undergo lead bath quenching to attain a refined pearlite structure. In contrast, alloy steel wires benefit 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, each contributing to superior results tailored to specific requirements.
Step Three
Forming: With state-of-the-art precision equipment, we expertly wind the drawn steel wire into a wide array of spring configurations, including compression springs, tension springs, and beyond, catering to a diverse spectrum of application necessities. Each spring is crafted with meticulous precision to ensure it meets the specific demands of the application, guaranteeing reliability and longevity in every use.
Inspection and Packaging: Through rigorous testing and quality assurance, we ensure each spring steel wire conforms to stringent standard specifications. Finally, safe and secure packaging is implemented to maintain product integrity and safety throughout transit and storage, ensuring that every wire arrives in pristine condition, ready for immediate use.
Spring steel wire is a precision-engineered wire used in crafting springs or model parts. It finds diverse applications in items such as mattress springs, subtractors, suspension springs, engine valves, and camera shutters. Quality requirements vary significantly across the types, including raw drawn, lead quenched, galvanized, and oil quenched spring steel wire, each meticulously tailored to meet distinct needs and specifications, ensuring optimal performance in every scenario.
| 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 illuminates the global steel manufacturing landscape with unmatched excellence and innovation. As a dedicated and professional manufacturer, we excel across the comprehensive spectrum of steel production. Our unparalleled expertise encompasses galvanized steel coils, pre-painted galvanized steel coils, steel pipes, plates, and an extensive array of stainless steel products including sheets, pipes, profiles, bars, and coils. Our strategic presence is amplified by four branch offices spread throughout China, with our headquarters in Tianjin pulsating at the core of our operations. Drawing upon years of invaluable industry expertise, we have forged robust strategic alliances with illustrious stainless steel giants such as TISCO, BAOSTEEL, and POSCO (ZPSS), firmly positioning us at the pinnacle of premier-grade steel supply. Our impressive inventory exceeds 2,000 tons, boasting more than 800 distinct specifications. Our premium, high-quality products are not only celebrated across every corner of China but also hold immense appeal in international markets, reaching esteemed destinations including Saudi Arabia, Yemen, the UAE, Syria, Kuwait, Lithuania, Azerbaijan, Russia, Indonesia, Vietnam, Egypt, Malaysia, the Philippines, Bolivia, and Colombia. Our unwavering commitment to the relentless pursuit of excellence remains steadfast and resolute.
With an unwavering dedication to rigorous quality control and unparalleled customer service, our team of seasoned professionals is always at the ready to meet your needs and ensure complete satisfaction. We are passionately committed to expanding our global footprint and eagerly anticipate establishing potential long-term partnerships. Should you envision a collaborative future with us, we wholeheartedly invite you to reach out for prospective opportunities. We warmly welcome you to visit our state-of-the-art production facilities at your convenience, promising a unique insight into our cutting-edge operations.
1. At Tianjin Kaishuo Weiye Steel Co., Ltd., we pride ourselves on our cutting-edge manufacturing powerhouses situated in Shandong, Hebei, and Zhejiang, China. Each of these extraordinary facilities spans a remarkable 70,000 square meters, and is outfitted with the most advanced processing equipment available, including large shearing machines, circular shearing machines, precision straightening machines, sophisticated annealing furnaces, and comprehensive punching and shearing production lines. This ensures that we maintain the highest standards of production efficiency and excellence.
2. With an impressive and expansive annual inventory that exceeds 10,000 tons, we are expertly positioned to fulfill the diverse demands of market customers anytime. Our vast and far-reaching sales network extends worldwide, with our distinguished products successfully exported to over 100 countries, including Brazil, Peru, Cameroon, Senegal, Ghana, Botswana, Samoa, Russia, Thailand, India, and numerous other destinations.
3. Our steadfast dedication to unparalleled quality is demonstrated through our esteemed certifications, including ISO9001, SGS, JIS, BV, among others. Every product in our distinguished line is accompanied by a comprehensive inspection report, offering you complete peace of mind and the assurance of our unwavering commitment to excellence.
4. With a robust and substantial inventory at the ready, your orders can be swiftly dispatched without delay. We are at your disposal 24/7, supported by a highly professional and dedicated sales and after-sales service team committed to efficiently addressing and resolving all your inquiries and challenges.
5. Our meticulous and comprehensive quality control system empowers us to offer customization tailored precisely to your specific dimensions. Experience the best of both worlds with our competitive pricing coupled with outstanding quality. Contact us with your inquiry today and discover even more exclusive discounts waiting just for you!
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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