| Customization: | Available |
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| Certification: | ISO |
| Surface: | Spiral |
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Production Process of Spring Steel Wire
Material Selection and Pretreatment: Our journey begins with sourcing only the finest high carbon or alloy steel, renowned for its superior elasticity and exceptional strength. During the preprocessing stage, precise heating and rolling techniques are employed, meticulously refining the microstructure to amplify mechanical properties. This vital foundational step ensures our wire stands out with unwavering quality and unmatched performance.
Step One
Surface Treatment: We implement advanced techniques such as acid pickling phosphating or mechanical methods, expertly chosen to strip away iron oxide scale, create a protective phosphating layer, or achieve a flawlessly smooth surface. For spring steel wires demanding superior fatigue resistance, like valve spring steel wires, coil peeling becomes essential to minimize surface imperfections and elevate product longevity.
Step Two
Wire Drawing: This sophisticated process significantly reduces the steel wire's diameter through meticulous successive cold drawing, greatly increasing its strength and hardness. For spring steel wires of high tensile strength, maintaining an outlet temperature below 150 ºC during each drawing pass is crucial to prevent strain aging and avert torsional cracks. Effective lubrication and cooling are indispensable to control temperature increments.
Heat Treatment: This crucial phase involves quenching and tempering. Carbon steel spring wires typically undergo lead bath quenching to achieve a refined pearlite structure. Alloy steel wires benefit from tailor-made annealing heat treatments, whereas stainless steel wires utilize solid solution techniques. The oil quenching process may incorporate water quenching or polymer-enhanced water quenching to deliver superior outcomes.
Step Three
Forming: Utilizing precision equipment, we expertly mold the drawn steel wire into an array of spring shapes, including compression springs and tension springs, specifically designed to meet a wide range of application needs.
Inspection and Packaging: Through exhaustive testing, we guarantee each spring steel wire adheres to stringent standard specifications. Subsequently, secure and protective packaging is applied to ensure product integrity and safety during transportation and storage.
Our spring steel wire is a finely crafted and meticulously engineered product, specifically designed for creating springs or model parts. Its wide range of applications includes mattress springs, suspension springs, engine valves, and camera shutters. Diverse quality standards are met across various types, including raw drawn, lead quenched, galvanized, and oil quenched spring steel wire, each purposefully engineered to fulfill distinct 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. stands as a beacon of excellence in the global steel manufacturing arena, showcasing a commitment to innovation and quality unparalleled in the industry. As a premier manufacturer, we excel in the full spectrum of steel production, offering an impressive lineup that includes galvanized steel coils, pre-painted galvanized steel coils, steel pipes, plates, and an extensive variety of stainless steel products like sheets, pipes, profiles, bars, and coils. With a strategic network of four branch offices throughout China and headquarters based in Tianjin, we operate at the heart of steel innovation and production. Leveraging years of profound industry expertise, we have cultivated strong strategic partnerships with leading stainless steel manufacturers such as TISCO, BAOSTEEL, and POSCO (ZPSS), elevating us to a leading position in the high-quality steel supply market. Our expansive inventory exceeds 2,000 tons, offering over 800 unique specifications, signifying our capability to meet diverse demands. Our high-caliber products enjoy widespread acclaim not only across China but also in international markets, earning trust and admiration in countries such as Saudi Arabia, Yemen, the UAE, Syria, Kuwait, Lithuania, Azerbaijan, Russia, Indonesia, Vietnam, Egypt, Malaysia, the Philippines, Bolivia, and Colombia. We remain unwaveringly dedicated to the pursuit of excellence, driving continuous improvement and customer satisfaction.
Harnessing a steadfast commitment to stringent quality control and exceptional customer service, our dedicated team of seasoned professionals is ever-prepared to meet your specific requirements and ensure your complete satisfaction. Embodying a vision of global expansion, our ambition is matched by an eagerness to cultivate enduring partnerships. If you envisage a collaborative journey with us, we warmly encourage you to engage with us for future opportunities. We extend a heartfelt invitation to explore our state-of-the-art production facilities at your convenience, where you'll gain unique insights into our advanced operations and manufacturing prowess.
1. Our enterprise, Tianjin Kaishuo Weiye Steel Co., Ltd., proudly stands as a leading force with expansive manufacturing facilities strategically nestled in the heart of Shandong, Hebei, and Zhejiang, China. Each facility impressively covers a sprawling 70,000 square meters, brimming with cutting-edge processing machinery including large and circular shearing machines, straightening machines, state-of-the-art annealing furnaces, and an advanced punching and shearing production line. This sophisticated setup positions us at the forefront of industrial innovation.
2. With a staggering annual inventory surpassing 10,000 tons, we are exceptionally equipped to meet the dynamic and diverse demands of the global market. Our far-reaching sales network stretches across continents, facilitating exports to over 100 countries, including vibrant markets like Brazil, Peru, Cameroon, Senegal, Ghana, Botswana, Samoa, Russia, Thailand, India, and many more vibrant destinations.
3. Our products are synonymous with unparalleled quality, underscored by prestigious certifications from esteemed organizations such as ISO9001, SGS, JIS, and BV. Each product is meticulously accompanied by a detailed inspection report, ensuring unmatched transparency and unwavering quality assurance for our cherished customers.
4. We take immense pride in our robust inventory, which empowers us to dispatch orders with unmatched swiftness. Our dedicated team is at your service around the clock, providing 7*24 hours online support. Coupled with our expert sales and after-sales service team, we are fully equipped to address and resolve any queries or challenges you may encounter, ensuring an exceptional customer experience.
5. Our stringent quality control system is a testament to our relentless commitment to excellence. We offer bespoke customization solutions tailored precisely to your size requirements, seamlessly blending superior quality with cost-effective pricing. Reach out to us today to explore our exclusive discounts and receive unmatched service that caters to your every need.
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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