| Customization: | Available |
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| Certification: | ISO |
| Surface: | Spiral |
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Production Process of Spring Steel Wire
Material Selection and Pretreatment: Begin with our elite high carbon or alloy steel, renowned for their superior elasticity and robust strength. The preprocessing involves exacting heating and rolling, meticulously refining microstructures to significantly boost mechanical properties. This crucial step guarantees our wire's unwavering quality and unparalleled performance.
Step One
Surface Treatment: This stage employs advanced techniques such as acid pickling phosphating or mechanical methods, expertly selected to remove iron oxide scale, create a protective phosphating film, or achieve an impeccably smooth surface. For spring steel wires demanding exceptional fatigue life, like valve spring steel wires, coil peeling is essential to minimize surface flaws.
Step Two
Wire Drawing: This refined process elegantly reduces the steel wire's diameter via successive cold drawing, dramatically increasing its strength and hardness. For high-strength spring steel wire, it is vital to maintain the outlet temperature under 150 ºC during each drawing pass, to prevent strain aging and torsional cracks. Effective lubrication and cooling are pivotal for temperature regulation.
Heat Treatment: This crucial phase includes quenching and tempering. Carbon steel spring wires typically endure lead bath quenching for a refined pearlite structure. Alloy steel wires gain from annealing heat treatments, while stainless steel wires utilize solid solution techniques. The oil quenching process may involve water quenching or polymer-enhanced water quenching for optimally superior results.
Step Three
Forming: Using precision equipment, we expertly shape the drawn steel wire into various spring types such as compression springs and tension springs, precisely tailored for diverse application needs.
Inspection and Packaging: Through stringent testing, we ensure every spring steel wire meets exact standard specifications. We then employ secure packaging to uphold product integrity and safety during transportation and storage.
Spring steel wire is a beautifully crafted steel wire, engineered meticulously for manufacturing springs or model parts. It finds diverse applications 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 crafted to meet specific 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. 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. Tianjin Kaishuo Weiye Steel Co., Ltd., a premier enterprise, is proud to offer expansive manufacturing facilities strategically positioned across Shandong, Hebei, and Zhejiang, China. Each impressive 70,000 square meter facility is outfitted with cutting-edge machinery, including large and circular shearing machines, straightening equipment, annealing furnaces, alongside a sophisticated punching and shearing production line, affirming our capability to handle all your needs.
2. With an astounding annual inventory exceeding 10,000 tons, we effortlessly meet the dynamic demands of global markets. Our extensive sales network spans the globe, with exports reaching over 100 countries such as Brazil, Peru, Cameroon, Senegal, Ghana, Botswana, Samoa, Russia, Thailand, India, and beyond, showcasing our unparalleled reach and reliability.
3. Our high-standard products have earned certifications from prestigious entities like ISO9001, SGS, JIS, and BV, underscoring our commitment to quality. Each product is meticulously accompanied by an inspection report, guaranteeing transparency and instilling confidence in our valued customers.
4. We take pride in our substantial inventory, enabling swift order dispatch. Our dedicated team provides unwavering round-the-clock, 7*24 hour online service. Augmented by an expert sales and after-sales team, we are always ready to address and resolve any inquiries or challenges you may face with efficiency and care.
5. Our rigorous quality control system embodies our dedication to excellence. We offer bespoke customization tailored to your exact size requirements, perfectly blending superior quality with competitive pricing. Reach out to us now to explore our exclusive discounts and experience our extraordinary 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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