| 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 begin with nothing but the highest-grade high carbon steel or alloy steel, celebrated for their outstanding elasticity and robust strength. Our precise preprocessing includes heating and rolling, meticulously refining the microstructure and enhancing mechanical properties to lay the groundwork for unparalleled quality.
Step One
Surface Treatment: This phase employs advanced techniques such as acid pickling, phosphating, or mechanical methods, carefully chosen to eliminate iron oxide scale, create a protective phosphating film, or achieve an immaculate smooth surface. This is especially crucial for spring steel wires that demand exceptional fatigue life, such as valve spring steel wires, where peeling the coil is vital to minimize surface imperfections.
Step Two
Wire Drawing: This process artistically reduces the diameter of the steel wire through successive cold drawing, greatly improving its strength and hardness. For high-strength spring steel wire, it's critical to maintain the outlet temperature below 150 ºC during each drawing pass to prevent strain aging and torsional cracks. Effective lubrication and cooling are essential to manage temperature increases.
Heat Treatment: This essential stage includes quenching and tempering. 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 are treated with solid solution processes. The oil quenching process may also incorporate water quenching or water quenching with polymers for superior results.
Step Three
Forming: Utilizing precision equipment, we expertly wind the drawn steel wire into diverse spring shapes such as compression springs, tension springs, and more, catering to a wide array of application needs.
Inspection and Packaging: Rigorous testing is conducted to ensure that each spring steel wire meets the highest standard requirements. Safe and secure packaging is then used to ensure the product's integrity and safety during transportation and storage.
Spring steel wire is meticulously engineered steel wire, crafted specifically for manufacturing springs or model parts. Its wide-ranging applications include mattress springs, subtractors, suspension springs, engine valves, and camera shutters. The quality requirements vary across types, including raw drawn, lead quenched, galvanized, and oil quenched spring steel wire, each tailored to meet specific performance 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. Proudly owning expansive manufacturing facilities in Shandong, Hebei, and Zhejiang, China, Tianjin Kaishuo Weiye Steel Co., Ltd. boasts state-of-the-art equipment across an impressive 70,000 square meters per facility. Our arsenal includes large shearing machines, circular shearing machines, straightening machines, annealing furnaces, and a comprehensive punching and shearing production line, all designed to ensure top-notch precision and quality.
2. With an annual inventory exceeding 10,000 tons, we guarantee to meet the ever-evolving needs of our global market customers. Our extensive sales network spans the globe, reaching over 100 countries including Brazil, Peru, Cameroon, Senegal, Ghana, Botswana, Samoa, Russia, Thailand, India, and many more, ensuring our High Quality 50crva Steel Spring Wire reaches you wherever you are.
3. Our commitment to quality is unwavering, reflected in our certifications by ISO9001, SGS, JIS, BV, and more. Each product is accompanied by a comprehensive product inspection report, enabling customers to verify the superior quality of our offerings with confidence.
4. With a robust and sufficient inventory, we ensure orders are shipped promptly. Our 24/7 online service coupled with a professional sales and after-sales team is always ready to address any inquiries, ensuring a seamless experience from order to delivery.
5. Our stringent quality control system allows for customization to your exact specifications. Despite our competitive pricing, we never compromise on quality. Reach out to us with an inquiry today and discover 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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