| 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 meticulously select only the finest quality high carbon steel or alloy steel, renowned for its excellent elasticity and robust strength. Our preprocessing phase is a masterpiece of precision, involving precise heating and rolling techniques that significantly enhance microstructure and mechanical properties. This foundational step ensures our product's unparalleled quality and performance.
Step One
Surface Treatment: At this intricate stage, we employ advanced techniques such as acid pickling phosphating and mechanical approaches, chosen with precision to effectively remove iron oxide scale. These methods create a protective phosphating film or achieve an impeccably smooth surface finish. For spring steel wires requiring enhanced fatigue life, like valve spring steel wires, coil peeling is crucial, significantly reducing surface defects and boosting performance.
Step Two
Wire Drawing: Our wire drawing process skillfully reduces the steel wire's diameter through strategic cold drawing, significantly enhancing its strength and hardness. Maintaining an outlet temperature below 150 ºC during each drawing phase is essential for high-strength spring steel wire to prevent strain aging and torsional fractures. Moreover, effective lubrication and cooling are pivotal in managing temperature rise, ensuring exceptional wire quality.
Heat Treatment: This critical phase includes quenching and tempering processes. Carbon steel spring wires typically undergo lead bath quenching to achieve a refined pearlite structure. Alloy steel wires benefit from annealing heat treatments, while stainless steel wires undergo a solid solution process. The oil-quenching method may incorporate water quenching or water quenching with polymers for optimal results and superior performance.
Step Three
Forming: Utilizing advanced precision equipment, we expertly form the drawn steel wire into various spring configurations, including compression springs, tension springs, and more, to meet a wide range of application requirements. Our expertise ensures precise and reliable spring formation, catering to diverse needs.
Inspection and Packaging: Through stringent testing, we guarantee each spring steel wire meets rigorous industry standards. We ensure product integrity and safety with secure packaging, safeguarding our products during transit and storage for absolute customer satisfaction.
Spring steel wire is a precision-engineered product, meticulously crafted for the production of springs or model parts. It boasts diverse applications, including use in mattress springs, subtractors, suspension springs, engine valves, and camera shutters. The quality requirements for spring steel wire vary widely, from raw drawn and lead quenched to galvanized and oil quenched, each specifically designed to meet unique demands.
| 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. proudly presents its state-of-the-art manufacturing facilities strategically nestled in Shandong, Hebei, and Zhejiang, China. Each factory spans an expansive 70,000 square meters, meticulously outfitted with the latest processing machinery, including large shearing machines, circular shearing instruments, straightening machines, annealing furnaces, and integrated punching and shearing production lines, all combining to ensure unparalleled production capabilities.
2. With a remarkable annual inventory surpassing 10,000 tons, we are impeccably positioned to cater to the diverse needs of market customers at any moment. Our vast sales network extends globally, having triumphantly exported to over 100 countries, including Brazil, Peru, Cameroon, Senegal, Ghana, Botswana, Samoa, Russia, Thailand, India, and many more.
3. Our steadfast dedication to superior quality is epitomized by our certifications from ISO9001, SGS, JIS, BV, and others. Every product from our collection is accompanied by a thorough inspection report, providing you with peace of mind and an assurance of exceptional quality.
4. With an extensive and ample inventory, your orders can be promptly dispatched directly to you. Our service is available around the clock, with a highly skilled professional sales and after-sales service team, devoted to addressing and resolving all your inquiries and challenges with utmost efficiency.
5. Our meticulous quality control system allows for customization tailored precisely to your specific dimensions. Delight in the perfect blend of competitive pricing and superior quality. Reach out with an inquiry today to discover more exclusive discounts and benefits!
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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