| 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 the finest selection of high carbon or alloy steel, known for its exceptional elasticity and robust strength. The preprocessing phase is a meticulous journey involving precise heating and rolling, designed to refine the microstructure and enhance the mechanical properties, setting the stage for unparalleled quality.
Step One
Surface Treatment: This phase demands sophistication, where we deploy advanced techniques like acid pickling, phosphating, or mechanical approaches. These sophisticated methods are chosen to eliminate iron oxide scale, create a protective phosphating film, or achieve a flawless, gleaming surface. For spring steel wires demanding elevated fatigue life, such as valve spring steel wires, coil peeling is crucial to significantly reduce surface defects.
Step Two
Wire Drawing: In this intricate process, the steel wire's diameter is expertly reduced through successive precision cold drawing, significantly enhancing its strength and hardness. For high-strength spring steel wire, ensuring the outlet temperature remains below 150 ºC during each drawing phase is imperative to prevent strain aging and torsional fractures. Effective lubrication and cooling are essential in managing temperature increases.
Heat Treatment: This critical stage involves quenching and tempering. Carbon steel spring wires typically undergo lead bath quenching to develop a refined pearlite structure. In contrast, alloy steel wires benefit from annealing heat treatment, while stainless steel wires are processed with solid solution treatments. The oil quenching method may also incorporate water quenching or polymer water quenching for optimal results.
Step Three
Forming: Utilizing state-of-the-art precision equipment, we skillfully shape the drawn steel wire into a variety of spring configurations, including compression springs and tension springs, to meet a broad range of application requirements.
Inspection and Packaging: Through thorough and rigorous testing, we ensure that each spring steel wire meets strict standard specifications. Finally, secure and protective packaging is employed to maintain product integrity and ensure safety during transit and storage.
Spring steel wire is a precision-engineered wire utilized in crafting springs or model parts. Its applications are diverse, including mattress springs, subtractors, suspension springs, engine valves, and camera shutters. Quality requirements vary significantly across types, such as raw drawn, lead quenched, galvanized, and oil quenched spring steel wire, each meticulously tailored 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. takes immense pride in its state-of-the-art manufacturing marvels strategically stationed in Shandong, Hebei, and Zhejiang, China. Each sprawling facility stretches over an impressive 70,000 square meters, brimming with cutting-edge processing technologies. Our arsenal includes large shearing machines, circular shearing units, advanced straightening machines, precision annealing furnaces, and dynamic punching and shearing production lines. All are meticulously orchestrated to ensure unparalleled production prowess and quality.
2. With an astounding annual inventory surpassing 10,000 tons, we are exceptionally poised to cater to market demands seamlessly, no matter the time or place. Our expansive and robust sales network seamlessly spans the globe, celebrating successful exports to over 100 countries, including dynamic markets such as Brazil, Peru, Cameroon, Senegal, Ghana, Botswana, Samoa, Russia, Thailand, India, and far beyond.
3. Our steadfast dedication to quality excellence shines through with certifications from prestigious authorities like ISO9001, SGS, JIS, and BV, among others. Every product in our collection arrives with a comprehensive inspection report, offering you unwavering peace of mind and an assurance of top-tier quality and craftsmanship.
4. Boasting a robust and ample inventory, your orders are primed for swift dispatch. We stand ready at your service 24/7, supported by an elite team of professional sales and after-sales experts dedicated to efficiently addressing and resolving all your queries and challenges with precision and care.
5. Our meticulous and stringent quality control system empowers customization tailored to your unique specifications. Experience the harmonious blend of competitive pricing and superior quality. Connect with us today with your inquiry and uncover a treasure trove of exclusive discounts awaiting 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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