| Customization: | Available |
|---|---|
| Certification: | ISO |
| Surface: | Spiral |
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Production process of spring steel wire
Material Selection and Pretreatment: Our journey begins by selecting only the finest high carbon or alloy steel, renowned for their exceptional elasticity and robust strength. During pre-treatment, an intricate process of heating and rolling meticulously refines the microstructure and mechanical properties, setting the stage for supreme quality.
Step One
Surface Treatment: This critical phase incorporates advanced techniques like acid pickling phosphating or precise mechanical methods. These are strategically chosen to eliminate iron oxide scale, create a protective phosphating film, or achieve a flawless smooth surface. For spring wires demanding heightened fatigue resistance, such as valve spring steel wires, peeling the coil is essential to significantly reduce surface imperfections.
Step Two
Wire Drawing: Throughout the wire drawing process, the diameter of the steel wire is expertly reduced via successive cold drawing stages, markedly increasing its strength and hardness. For high-strength spring steel wire, maintaining the outlet temperature below 150 ºC during every drawing phase is crucial to prevent strain aging and torsional fractures. Effective lubrication and cooling are pivotal in managing temperature rises.
Heat Treatment: An indispensable process that involves quenching and tempering techniques. Carbon steel spring wires typically undergo lead bath quenching to achieve a refined pearlite structure. In contrast, alloy steel wires benefit from annealing heat treatments, while stainless steel wires are processed with solid solution techniques. The oil quenching method, which may include water quenching or water quenching with polymers, ensures optimal results.
Step Three
Forming: Utilizing cutting-edge precision equipment, we meticulously wind the drawn steel wire into various spring configurations, such as compression springs, tension springs, and more, to fulfill a wide array of application requirements.
Inspection and Packaging: Through comprehensive testing, we verify that each spring steel wire meets rigorous standard specifications. Finally, we employ secure packaging to uphold product integrity and safety throughout transport and storage.
Spring steel wire is a precision-engineered material, expertly crafted for the production of springs or model parts. Its versatile applications span from mattress springs to subtractors, suspension springs, engine valves, and camera shutters. The quality standards vary greatly among types, including raw drawn, lead quenched, galvanized, and oil quenched spring steel wire-each crafted to fulfill unique requirements.
| 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. Tianjin Kaishuo Weiye Steel Co., Ltd. is proud to feature state-of-the-art manufacturing facilities strategically situated in Shandong, Hebei, and Zhejiang, China. Each expansive plant covers an impressive 70,000 square meters and is equipped with cutting-edge machinery, including large shearing machines, circular shearing machines, straightening machines, annealing furnaces, as well as sophisticated punching and shearing production lines. This ensures unparalleled production capabilities tailored to meet diverse needs.
2. With an extraordinary annual inventory surpassing 10,000 tons, we are impeccably positioned to satisfy the needs of our global clientele at any moment. Our extensive sales network spans across continents, successfully exporting to over 100 countries such as Brazil, Peru, Cameroon, Senegal, Ghana, Botswana, Samoa, Russia, Thailand, and India. Discover our worldwide reach and reliability today.
3. Our steadfast dedication to quality is embodied by our prestigious certifications including ISO9001, SGS, JIS, and BV, amongst others. Every product in our lineup comes with a detailed inspection report, providing you with confidence and assurance in our commitment to excellence.
4. With our vast and well-stocked inventory, your orders can be dispatched swiftly and efficiently. We stand ready to serve you around the clock, supported by a professional sales and after-sales service team devoted to promptly and effectively addressing all your inquiries and challenges.
5. Our precise quality control system is designed to offer customization according to your specific requirements. Revel in the synergy of competitive pricing and unmatched quality. Contact us with an inquiry today and discover a world of exclusive discounts tailored 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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