| Customization: | Available |
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| Certification: | ISO |
| Surface: | Spiral |
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Production Process of Spring Steel Wire: Journey through the meticulous manufacturing stages of our spring steel wire, where advanced technology and expert craftsmanship converge to deliver exceptional quality and performance.
Material Selection and Pretreatment: We initiate our process by carefully selecting premium high carbon steel or alloy steel, celebrated for their extraordinary elasticity and strength. The preprocessing phase involves strategic heating and rolling, which meticulously refine the microstructure and mechanical properties, laying the groundwork for unparalleled quality.
Step One: Surface Treatment
Surface Treatment: In this critical phase, we employ advanced techniques such as acid pickling, phosphating, or mechanical methods to meticulously eliminate iron oxide scale, apply a protective phosphating film, or achieve an immaculate smooth surface. Particularly for spring steel wires with high fatigue life requirements, like valve spring wires, surface peeling is essential to minimize defects.
Step Two: Wire Drawing
Wire Drawing: Through a sophisticated wire drawing process, we expertly reduce the steel wire's diameter with successive cold drawing, significantly boosting its strength and hardness. Maintaining an outlet temperature below 150 ºC during each drawing pass is crucial for high-strength spring wires to avoid strain aging and torsional cracks, ensuring effective lubrication and cooling for optimal temperature management.
Heat Treatment: A pivotal stage, heat treatment involves precise quenching and tempering. Carbon steel wires typically undergo lead bath quenching to achieve a refined pearlite structure, while alloy steel wires benefit from annealing heat treatments. Stainless steel wires are expertly treated with solid solution processes, enhancing their performance. The oil quenching process may be augmented with water quenching or polymer-enhanced water quenching for superior results.
Step Three: Forming
Forming: With state-of-the-art equipment, we expertly wind the drawn steel wire into diverse spring configurations, including compression springs, tension springs, and more, to accommodate a wide range of application requirements.
Inspection and Packaging: Through rigorous testing, we ensure each spring steel wire meets the highest standards of quality and performance. Our secure packaging methods safeguard the product's integrity and safety during transportation and storage, guaranteeing customer satisfaction.
Spring steel wire is an ingeniously crafted steel wire designed for manufacturing springs or model components. Its versatile applications span mattress springs, subtractors, suspension springs, engine valves, and camera shutters. Each type of spring steel wire-raw drawn, lead quenched, galvanized, and oil quenched-is meticulously engineered to fulfill specific needs, adhering to diverse quality 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 and innovation in the global steel manufacturing arena. As a leading manufacturer dedicated to quality, we offer an extensive range of steel products that embody precision and strength. Our expertise covers everything from galvanized steel coils and pre-painted galvanized steel coils to a wide array of stainless steel offerings, including sheets, pipes, profiles, bars, and coils. With four strategically located branch offices across China and our dynamic headquarters in Tianjin, we are at the heart of steel innovation. Over the years, we have cultivated strategic partnerships with industry titans like TISCO, BAOSTEEL, and POSCO (ZPSS), securing our position as a top supplier of premier-grade steel. Our expansive inventory, exceeding 2,000 tons with over 800 varied specifications, ensures we meet diverse market demands. Our high-quality products enjoy widespread acclaim in China and shine in international markets, reaching prestigious locations such as Saudi Arabia, Yemen, the UAE, Syria, and many more. Our steadfast commitment to excellence drives our continued success and innovation.
Our commitment to rigorous quality control and outstanding customer service is unwavering. Our team of seasoned professionals is dedicated to meeting your needs and ensuring your complete satisfaction. We are keenly focused on expanding our global reach and are enthusiastic about building long-term partnerships. If you foresee a collaborative future with us, we warmly invite you to connect and explore exciting opportunities together. We also extend an open invitation for you to visit our state-of-the-art facilities, offering you an exclusive glimpse into our cutting-edge operations and innovative processes.
1. Tianjin Kaishuo Weiye Steel Co., Ltd. is proud to operate state-of-the-art manufacturing facilities strategically located across Shandong, Hebei, and Zhejiang, China. Each facility sprawls over an impressive 70,000 square meters and is equipped with cutting-edge processing machinery, including large-scale shearing machines, circular shearing machines, precision straightening machines, high-efficiency annealing furnaces, and comprehensive punching and shearing production lines.
2. With a substantial annual inventory exceeding 10,000 tons, we ensure that our supply chain consistently meets the dynamic demands of our global clientele. Our extensive sales network spans the globe, with our products reaching over 100 countries, including major markets such as Brazil, Peru, Cameroon, Senegal, Ghana, Botswana, Samoa, Russia, Thailand, India, and many more.
3. The unwavering quality of our products is validated by prestigious certifications like ISO9001, SGS, JIS, and BV, among others. Moreover, each product is accompanied by a detailed inspection report, empowering our customers with confidence and assurance during their inspections.
4. We boast ample inventory, enabling immediate shipment of orders. Our dedicated professional team is available 24/7 to provide exceptional online service and after-sales support, ensuring that all your queries and issues are addressed promptly and efficiently.
5. Our rigorous quality control system allows for customization to meet your specific size requirements, offering you an unbeatable combination of competitive pricing and superior quality. Reach out to us with an inquiry today and unlock 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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