| Customization: | Available |
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| Certification: | ISO |
| Surface: | Spiral |
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Production Process of Spring Steel Wire
Material Selection and Pretreatment: Our journey begins with the selection of the highest-grade high carbon steel or alloy steel, celebrated for its remarkable elasticity and strength. During the preprocessing phase, we engage in heating and rolling, meticulously refining the microstructure and mechanical attributes, laying the groundwork for unmatched quality and performance.
Step One
Surface Treatment: In this pivotal stage, we employ an array of sophisticated techniques such as acid pickling, phosphating, or mechanical treatments. These are scrupulously chosen to eliminate iron oxide scale, create a defensive phosphating film, or achieve an immaculate surface finish. For spring steel wires requiring superior fatigue life, like valve spring steel wires, coil peeling is essential to minimize surface imperfections.
Step Two
Wire Drawing: This artistic procedure expertly reduces the diameter of the steel wire through a series of cold drawings, greatly enhancing its strength and hardness. For high-strength spring steel wire, it is crucial to keep the exit temperature below 150 ºC during each drawing pass to avert strain aging and torsional cracking. Effective lubrication and cooling are indispensable for managing temperature elevation.
Heat Treatment: This essential phase encompasses quenching and tempering. Carbon steel spring wires typically undergo lead bath quenching to attain a refined pearlite structure. Meanwhile, alloy steel wires benefit from annealing heat, and stainless steel wires undergo solid solution processes. Oil quenching is sometimes enhanced with water quenching or polymer additives for superior results.
Step Three
Forming: Utilizing precision equipment, we expertly coil the drawn steel wire into various spring configurations, such as compression springs, tension springs, and more, catering to a wide array of application demands with exacting precision.
Inspection and Packaging: Through rigorous testing protocols, we ensure that each spring steel wire adheres to the most demanding quality standards. Secure packaging methods are then employed to ensure the product remains safe and intact during transportation and storage.
Spring steel wire is a meticulously engineered wire used in crafting springs or model components. Its diverse applications span mattress springs, subtractors, suspension springs, engine valves, and camera shutters. The quality requirements vary by type, including raw drawn, lead quenched, galvanized, and oil quenched spring steel wire, each tailor-made to fulfill specific functional needs.
| 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. Our enterprise, Tianjin Kaishuo Weiye Steel Co., Ltd., proudly boasts its own state-of-the-art manufacturing facilities located in Shandong, Hebei, and Zhejiang, China. Each facility spans an extensive 70,000 square meters, equipped with advanced processing machinery including large shearing machines, circular shearing machines, straightening machines, annealing furnaces, and comprehensive punching and shearing production lines.
2. With an impressive annual inventory surpassing 10,000 tons, we assure our capability to consistently fulfill market demands. Our expansive sales network reaches across the globe, successfully exporting to over 100 countries, such as Brazil, Peru, Cameroon, Senegal, Ghana, Botswana, Samoa, Russia, Thailand, India, and more.
3. Our products, including the Reliable Carbon Steel Spring Wire for Heavy Duty Applications, are certified by esteemed standards such as ISO9001, SGS, JIS, and BV. We provide detailed product inspection reports for every item, reinforcing transparency and trust with our customers during inspections.
4. We maintain a robust and ready inventory, enabling immediate order dispatch. Our dedicated team offers 24/7 online support, ensuring expert sales and after-sales service, adeptly addressing any inquiries or challenges you may encounter.
5. Adhering to a stringent quality control system, our products can be customized to meet your specific size requirements while maintaining competitive pricing and exceptional quality. Reach out with an inquiry now to discover exclusive discounts.
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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