For over a decade, Tianjin Qingze Iron & Steel Trade Co., Ltd. has established itself as a premier supplier in the global metal products industry, specializing in a wide array of materials including stainless steel pipes, stainless steel round bars, stainless steel sheets, galvanized carbon steel corrugated sheets, and high-purity T2 copper coil tubes. Our company understands that modern manufacturing and construction demand not only superior materials but also consistent supply chains and technical expertise. We have built our reputation on delivering exactly that—combining deep industry knowledge with a robust inventory system that ensures our clients never face production delays. Our team comprises seasoned professionals who are well-versed in international standards such as ASTM, ensuring every product we ship meets the highest expectations. With our headquarters strategically located in Tianjin, one of China's busiest port cities, we are uniquely positioned to facilitate seamless global trade. This introduction would be incomplete without highlighting our commitment to becoming your most dependable partner for copper tubing solutions and beyond.

Our company’s mission revolves around bridging the gap between high-quality Chinese manufacturing and international buyers who demand reliability and precision. We serve a diverse clientele ranging from HVAC system manufacturers to refrigeration equipment producers, all of whom rely on our T2 copper coil tubes for critical applications. Over the years, we have cultivated long-term relationships with leading copper mills, allowing us to secure premium raw materials at competitive prices. This vertical integration of supply and quality control is what sets Tianjin Qingze apart in a crowded marketplace. Furthermore, our dedicated sales and after-sales teams work tirelessly to ensure every inquiry is handled with professionalism and speed. When you choose us, you are not just purchasing a product—you are gaining a supply chain ally committed to your success. To learn more about our journey and values, we invite you to visit our ABOUT US page.

The T2 copper coil tube is a high-purity copper product defined by its exceptional electrical and thermal conductivity, making it an indispensable material in refrigeration, air conditioning, heat exchange, and plumbing systems worldwide. Manufactured in strict compliance with ASTM B68 standards, our T2 copper coil tubes offer a seamless, dead-soft temper that allows for easy bending and flaring without the risk of cracking or work hardening. We supply these tubes in a wide range of diameters, typically from 1/4 inch to 4 inches, with wall thicknesses tailored to meet the pressure and durability requirements of various applications. Each coil is produced through a carefully controlled cold-drawing process that ensures uniform wall thickness, smooth inner surfaces, and excellent roundness. This precision engineering translates directly into superior system performance, reducing refrigerant leakage risks and improving overall energy efficiency for end users. Whether you need standard coils or customized lengths, our production capacity can accommodate orders of any scale.

What truly distinguishes our T2 copper coil tube offering is the flexibility we provide in customization. We understand that different projects demand different specifications, which is why we offer options such as level-wound coils, pancake coils, and straight-length tubes, each available in various packaging formats. Additionally, we can apply inner cleaning and capping to prevent contamination during transit, a service that is particularly valued by clients in the medical gas and precision instrumentation sectors. Our inventory includes both metric and imperial sizes, ensuring compatibility with equipment manufactured anywhere in the globe. For buyers seeking alternatives, we also stock related products like high-purity copper tube and T2 copper pipe coil, which share similar performance characteristics. Every batch of our pure copper coil is traceable back to its mill source, complete with mill test certificates that verify chemical composition and mechanical properties. To explore our complete product range and current pricing, please visit our PRODUCTS page.

Quality assurance is the cornerstone of our operations at Tianjin Qingze, and this is especially true for our T2 copper coil tube production line. Our process begins with the meticulous selection of raw copper cathodes sourced from top-tier domestic and international smelters, ensuring a minimum copper content of 99.90% as required by the T2 grade specification. Upon arrival at our facility, each coil of copper tube undergoes a comprehensive inspection protocol that includes dimensional checks, surface defect analysis, and cleanliness verification using advanced eddy current testing equipment. We also perform hydrostatic pressure tests on random samples from every production batch to confirm burst strength and leak resistance under extreme operating conditions. These rigorous procedures are not merely formalities—they are the reason why our clients in the Middle East and Africa trust us with their most sensitive cooling and heating projects. By maintaining an in-house laboratory staffed with experienced metallurgical engineers, we can identify potential issues before they ever reach the shipping floor.

Our commitment to quality extends far beyond initial production and inspection. We actively maintain certifications that demonstrate our adherence to international management systems, including ISO 9001, and our T2 copper coil tubes carry ASTM B68 compliance markings that facilitate smooth customs clearance and project approvals worldwide. Each shipment is accompanied by a detailed test report that includes chemical analysis, mechanical testing data, and dimensional verification results, providing our buyers with full transparency and peace of mind. We also conduct periodic third-party audits through recognized inspection agencies such as SGS or BV, giving our customers an additional layer of confidence. Furthermore, our quality control team continuously monitors feedback from the field, using real-world performance data to refine our manufacturing parameters and reduce tolerance variability. This closed-loop improvement system ensures that every subsequent order benefits from lessons learned in previous ones. For the latest updates on our quality initiatives and industry certifications, please check our NEWS page.

One of the most significant challenges faced by international buyers of copper tubing is the long lead time typically associated with mill-direct orders. Tianjin Qingze solves this problem by maintaining an extensive ready stock of T2 copper coil tubes covering the most commonly demanded sizes in the global market. Our warehouse facilities, spanning over 10,000 square meters, hold thousands of coils in diameters ranging from 1/8 inch to 4 inches, with wall thicknesses from 0.028 inches to 0.109 inches and beyond. This vast inventory means that we can begin processing your order immediately upon confirmation, often dispatching goods within three to five business days for standard specifications. We also stock complementary products such as copper fittings, brass valves, and insulation materials, enabling our clients to consolidate their procurement and reduce logistical overhead. Our inventory management system is digitally tracked in real time, allowing our sales team to provide accurate availability information within minutes of your inquiry.

The depth of our inventory is matched by the breadth of our size coverage, ensuring that even niche requirements can be fulfilled without the need for a costly minimum order quantity. Whether you need a small batch of 1/4-inch copper coil tube for a residential HVAC repair or a full container load of 7/8-inch T2 copper pipe coil for a large commercial project, we have the stock to support you. We also understand that different regions operate under different measurement standards, which is why our shelves hold both metric and imperial sizes side by side. This dual-inventory approach minimizes conversion errors and speeds up the ordering process for our diverse global clientele. Additionally, we regularly rotate our stock to prevent aging or oxidation, ensuring that every coil shipped is in pristine condition. For buyers who require even greater assurance, we offer the option of reserved inventory with flexible drawdown schedules. To discuss your specific size requirements and current stock availability, please feel free to reach out through our Brand contact page.

At Tianjin Qingze, we believe that true partnership extends beyond simply selling a product; it is about providing solutions that make our clients' operations more efficient. That is why we offer a comprehensive suite of value-added services for our T2 copper coil tubes, starting with precision custom cutting and end-forming. Our state-of-the-art cutting machinery can process coils into straight lengths of any specified dimension, with clean, burr-free ends that require no secondary preparation. We also provide annealing services for clients who require specific temper conditions, ensuring the material arrives with the exact mechanical properties needed for their fabrication processes. In addition, we offer specialized packaging options such as wooden spools, steel cages, and sealed polyethylene wrapping to protect the copper tube surface from moisture and mechanical damage during long-distance transit. These packaging solutions are designed in consultation with experienced freight forwarders to withstand the rigors of ocean freight and overland trucking.

Our logistics capabilities are a major competitive advantage, leveraging our location in the Tianjin port area to offer seamless, cost-effective shipping to destinations around the world. We maintain close working relationships with major shipping lines and freight consolidators, allowing us to negotiate competitive freight rates and secure timely container allocations even during peak seasons. For every export order, we handle all documentation including commercial invoices, packing lists, certificates of origin, and bills of lading, ensuring compliance with both Chinese export regulations and the import requirements of the destination country. Our logistics team also provides real-time tracking updates, so you always know exactly where your shipment is and when it will arrive. We regularly ship full containers (20GP, 40GP, 40HQ) as well as LCL (less than container load) consignments, offering flexibility for buyers of all sizes. By integrating our inventory, processing, and logistics under one roof, we reduce handover delays and minimize the risk of damage or loss. For the latest export case studies and shipping timelines, please revisit our HOME page regularly for updates.

Tianjin Qingze has built a strong export track record over the past decade, particularly in serving the Middle East, Africa, and Southeast Asia—regions where demand for high-quality T2 copper coil tubes continues to grow rapidly. We understand the specific requirements of these markets, including the need for products that can withstand extreme ambient temperatures, high humidity, and aggressive environmental conditions. Our copper tubing has been used in major HVAC installations across the Arabian Gulf, in refrigeration systems for cold chain logistics in East Africa, and in air conditioning networks for commercial buildings in Southeast Asia. This geographical diversity has taught us to navigate varying regulatory landscapes, customs procedures, and payment terms, making us a reliable partner for buyers who value consistency and professionalism. Our export team is multilingual and culturally aware, able to communicate effectively with clients from different backgrounds and time zones. We have also established partnerships with local agents and distributors in key markets to provide on-ground support and after-sales service.

Our supply chain reliability has been tested and proven through years of consistent performance, even during global disruptions such as raw material shortages and logistics bottlenecks. We maintain buffer stocks specifically reserved for our regular export clients, ensuring that their production lines never face interruption due to supply gaps. Our procurement team actively monitors global copper prices and adjusts our inventory strategy to offer competitive pricing while maintaining quality standards. This proactive approach has earned us long-term contracts with several multinational OEMs and EPC contractors who rely on our T2 copper coil tube as a critical component in their systems. We are also experienced in handling complex export documentation requirements such as Form A for preferential tariff treatment, SGS inspection certificates, and conformity assessment documents for specific destination countries. By partnering with us, international buyers gain access to a mature, resilient supply chain that has weathered market fluctuations and emerged stronger each time. We welcome new clients to explore our proven capabilities and discuss how we can tailor our services to their unique market needs.

Nothing speaks louder than real-world results, and Tianjin Qingze is proud to share several case studies that demonstrate our ability to deliver high-quality T2 copper coil tubes under demanding conditions. In one notable project, we supplied 120 tons of 5/8-inch T2 copper pipe coil to a major refrigeration manufacturer in Saudi Arabia, with a delivery schedule that required weekly container shipments over four months. We not only met every deadline but also provided additional technical support during the client's production ramp-up, helping them optimize their brazing and flaring processes. In another case, we delivered 50 tons of 1/2-inch copper coil tube to a government infrastructure project in Nigeria, where the material was used in a hospital's central air conditioning system. Despite challenging logistics involving inland transportation from Lagos, the shipment arrived intact and on time, with zero quality rejections during installation. These case studies are backed by formal project documentation, including delivery records, inspection reports, and client testimonials that we can share upon request.

In addition to our operational track record, we hold several key certifications that underline our commitment to quality and compliance. Our T2 copper coil tubes are manufactured under stringent quality management systems certified to ISO 9001 standards, ensuring that every process from raw material intake to final packaging is documented and auditable. We also provide mill test certificates (MTC) conforming to EN 10204 3.1 for each shipment, which include full chemical composition and mechanical property data. For clients requiring third-party verification, we routinely work with SGS, Bureau Veritas, or Intertek to perform pre-shipment inspections and testing. These certifications and independent verifications have become essential tools for our clients when they need to demonstrate compliance with their own downstream quality requirements. We continuously invest in upgrading our testing equipment and personnel training to stay ahead of evolving industry standards. Our dedication to transparency and accountability is why buyers return to us year after year, knowing that every order is backed by verified credentials and real-world proof of performance.

In a market flooded with options for copper tubing, Tianjin Qingze Iron & Steel Trade Co., Ltd. stands out as a supplier that genuinely understands the intersection of quality, availability, and service. Our T2 copper coil tube is produced to the highest international standards, backed by rigorous in-house testing and third-party certifications that give you complete confidence in the material you receive. The sheer depth of our ready stock—covering a full range of sizes from 1/8 inch to 4 inches—means that we can respond to urgent requirements with speed that mill-direct suppliers simply cannot match. Our value-added services, including custom cutting, specialized packaging, and seamless logistics from the port of Tianjin, transform a simple commodity purchase into a streamlined procurement experience. We do not just sell copper tube; we engineer supply chain solutions that keep your production running smoothly.

Our long-standing presence in the Middle East, Africa, and Southeast Asia has given us invaluable insights into the unique demands of these markets, and we have built our operations around meeting those demands consistently. Whether you are an OEM manufacturer, an EPC contractor, or a wholesale distributor, partnering with us means gaining access to a reliable, experienced, and client-focused team dedicated to your success. We invite you to contact us to discuss your specific T2 copper coil tube requirements, request a quotation, or schedule a visit to our warehouse and facility in Tianjin. Experience firsthand the difference that professionalism, transparency, and a genuine commitment to quality can make in your supply chain. Choose Tianjin Qingze as your trusted partner for T2 copper coil tube and discover why so many global buyers have made us their supplier of choice.