| 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 high carbon or alloy steel, celebrated for their outstanding elasticity and strength. The preprocessing stage involves precise heating and rolling, meticulously refining the microstructure to enhance mechanical properties. This foundational step ensures our wire's uncompromising quality and performance.
Step One
Surface Treatment: In this stage, we employ premium techniques like acid pickling phosphating or mechanical methods, expertly chosen to eliminate iron oxide scale, form a protective phosphating film, or achieve a flawlessly smooth surface. For spring steel wires requiring exceptional fatigue life, like valve spring steel wires, coil peeling is indispensable to minimize surface imperfections.
Step Two
Wire Drawing: This sophisticated process artfully reduces the steel wire's diameter through successive cold drawing, vastly enhancing its strength and hardness. For high-strength spring steel wire, keeping the outlet temperature below 150 ºC during each drawing pass is crucial to avert strain aging and torsional cracks. Effective lubrication and cooling are essential to manage temperature increases.
Heat Treatment: This pivotal phase includes quenching and tempering. Carbon steel spring wires customarily undergo lead bath quenching for a refined pearlite structure. Alloy steel wires benefit from annealing heat treatments, while stainless steel wires are processed using solid solution techniques. The oil quenching process may integrate water quenching or polymer-enhanced water quenching for superior results.
Step Three
Forming: Employing precision equipment, we expertly wind the drawn steel wire into a variety of spring shapes, such as compression springs and tension springs, tailored to meet diverse application requirements.
Inspection and Packaging: Through rigorous testing, we ensure each spring steel wire meets strict standard specifications. We then implement secure packaging to guarantee product integrity and safety during transportation and storage.
Spring steel wire is a meticulously engineered steel wire utilized in crafting springs or model parts. Its diverse applications range from mattress springs to suspension springs, engine valves, and camera shutters. Quality standards vary across types, including raw drawn, lead quenched, galvanized, and oil quenched spring steel wire, each designed to fulfill specific 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.
With 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. Our ambition to expand our global presence is matched by our eagerness to form lasting partnerships. If you foresee a collaborative journey with us, we warmly encourage you to engage with us for future opportunities. We extend a heartfelt invitation to visit our state-of-the-art production facilities at your convenience, offering you a unique glimpse into our advanced operations and manufacturing prowess.
1. Our enterprise, Tianjin Kaishuo Weiye Steel Co., Ltd., boasts expansive manufacturing facilities strategically located in Shandong, Hebei, and Zhejiang, China. Each facility spans a remarkable 70,000 square meters and is equipped with state-of-the-art processing machinery, including large and circular shearing machines, straightening machines, annealing furnaces, and an advanced punching and shearing production line.
2. With an impressive annual inventory exceeding 10,000 tons, we confidently meet the diverse demands of global market customers. Our extensive sales network reaches across the globe, with exports to over 100 countries, including Brazil, Peru, Cameroon, Senegal, Ghana, Botswana, Samoa, Russia, Thailand, India, and many more.
3. Our products are a testament to quality, having received certification from esteemed bodies such as ISO9001, SGS, JIS, and BV. Furthermore, each product is accompanied by an inspection report, ensuring transparency and quality assurance for our valued customers.
4. We pride ourselves on maintaining a robust inventory, enabling us to dispatch orders promptly. Our dedicated team offers round-the-clock, 7*24 hours online service, complemented by an expert sales and after-sales service team, poised to address and resolve any queries or challenges you may encounter.
5. Our stringent quality control system underscores our commitment to excellence. We offer customization tailored to your specific size requirements, merging high quality with cost-effective pricing. Contact us today to discover more about our exclusive discounts and exceptional service.
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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