| Customization: | Available |
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| Certification: | ISO |
| Surface: | Spiral |
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Production process of spring steel wire
Material Selection and Pretreatment: Embark on a journey with the premium choice of high carbon steel or alloy steel, celebrated for their unparalleled elasticity and robustness. In the preprocessing stage, witness the transformation as heating and rolling meticulously refine the microstructure and mechanical prowess, laying the groundwork for unmatched quality.
Step One
Surface Treatment: In the realm of surface treatment, we employ sophisticated techniques such as acid pickling phosphating or mechanical approaches. Carefully selected to eradicate iron oxide scale, form a protective phosphating layer, or attain an impeccable smooth surface. For those spring steel wires with high fatigue life demands, such as valve spring steel wires, peeling the coil is indispensable to curtail surface imperfections.
Step Two
Wire Drawing: The art of wire drawing elegantly diminishes the steel wire's diameter through successive cold drawing, dramatically boosting its strength and hardness. For high-strength spring steel wire, maintaining the outlet temperature beneath 150 ºC during each drawing pass is crucial to avert strain aging and torsional fissures. Effective lubrication and cooling are paramount to regulate temperature elevations.
Heat Treatment: This pivotal phase encompasses quenching and tempering. Carbon steel spring steel wires typically undergo lead bath quenching to attain a refined pearlite texture. Conversely, alloy steel wires are refined with annealing heat, while stainless steel wires undergo solid solution treatment. The oil quenching process may include water quenching or polymer-enhanced water quenching for superior results.
Step Three
Forming: Employing precision equipment, we astutely wind the drawn steel wire into a plethora of spring shapes, such as compression springs, tension springs, and beyond, to satisfy diverse application demands.
Inspection and Packaging: Rigorous testing meticulously verifies that each spring steel wire aligns with stringent standard requirements. Safe and secure packaging is then meticulously applied to ensure product integrity and safety throughout transportation and storage.
Spring steel wire, a meticulously crafted steel wire, is employed in the manufacturing of springs or model parts. Its diverse applications span mattress springs, subtractors, suspension springs, engine valves, and camera shutters. Quality requirements vary across types, including raw drawn, lead quenched, galvanized, and oil quenched spring steel wire, each tailored to fulfill distinct 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.
Driven by an unwavering dedication to rigorous quality control and unmatched customer service, our seasoned team of professionals is always primed and ready to meet your needs and surpass your expectations. We are passionately committed to expanding our global footprint and eagerly anticipate establishing potential long-term partnerships. Envision a collaborative future with us, and 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 and insightful glimpse into our cutting-edge operations. Join us in shaping the future of steel manufacturing and experience the brilliance of our innovation firsthand.
1. Tianjin Kaishuo Weiye Steel Co., Ltd. boasts its very own state-of-the-art manufacturing facilities strategically located in Shandong, Hebei, and Zhejiang, China. Each facility sprawls over an impressive 70,000 square meters, equipped with advanced machinery including large shearing machines, circular shearing machines, straightening machines, annealing furnaces, and cutting-edge punching and shearing production lines.
2. With an impressive annual inventory surpassing 10,000 tons, we are poised to meet the diverse needs of our global clientele. Our expansive sales network reaches over 100 countries worldwide, including dynamic markets such as Brazil, Peru, Cameroon, Senegal, Ghana, Botswana, Samoa, Russia, Thailand, India, and many more.
3. Our products carry the prestigious certifications of ISO9001, SGS, JIS, and BV, affirming their top-notch quality. Each item is accompanied by a detailed product inspection report, ensuring transparency and reliability for customer verification.
4. With abundant inventory at the ready, your orders are prepared for prompt dispatch. We provide 24/7 online service, coupled with a dedicated team of professional sales and after-sales experts, dedicated to resolving any queries or challenges you may have.
5. Our rigorous quality control system guarantees products tailored to your specific dimensions, delivering exceptional value with high quality at competitive prices. Contact us today for a personalized quote and unlock additional 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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