Precision Forged, Quality Leading——Carridea High-Precision Cold-Drawn Seamless Steel Tubes

In the field of precision steel tube manufacturing, the pursuit of accuracy, strength and reliability has always been the core driving force for industrial progress. Today, we are honored to present Carridea’s flagship product——high-precision cold-drawn seamless steel tubes, a masterpiece integrating advanced technology and strict quality control, which is not only the foundation of our company’s development, but also the core competitiveness that helps us stand out in the fierce market competition.

Cold drawing, as a cutting-edge precision processing technology, is the key to the excellent performance of our products. Different from the traditional hot rolling process, cold drawing is carried out at room temperature, through multiple precise drawing operations to reduce the outer diameter and wall thickness of seamless tubes. This process not only avoids the defects caused by high-temperature processing, but also significantly improves the dimensional accuracy, surface finish and mechanical properties of the tubes, making each cold-drawn tube a perfect combination of precision and strength.

Quality starts from the source, and raw materials determine the foundation. We adhere to the principle of "high standards and strict selection", and all cold-drawn tubes are made of high-quality raw materials such as 20#, 45#, 16Mn, 25Mn, 42CrMo and 27SiMn, which lay a solid foundation for the stable performance of the products. At the same time, we provide a full range of specifications to meet the diverse needs of different industries: the outer diameter ranges from 20mm to 325mm, the wall thickness is 3mm to 50mm, and the maximum length can reach 16 meters. With ultra-high precision indicators——dimensional tolerance controlled within ±0.05mm, straightness ≤ 0.3mm/m, and surface roughness Ra ≤ 1.6μm, our products fully comply with international standards such as DIN2391, EN10305 and ASTM A519, and can easily meet the strict requirements of global customers.

Advanced equipment is the guarantee of efficient production and stable quality. We are equipped with 250T and 300T high-precision hydraulic cold drawing units, combined with advanced straightening, heat treatment and cutting equipment, forming a one-stop production line from raw material processing to finished product delivery. This integrated production mode not only improves production efficiency, but also ensures the consistency of product quality in each link. Compared with ordinary hot-rolled tubes, our cold-drawn tubes have obvious advantages: higher strength, better pressure resistance, more uniform internal structure and excellent machinability, which are widely used in hydraulic cylinders, pneumatic components, mechanical parts and structural engineering, injecting strong power into the development of various industries.

At Carridea, quality is the lifeline of the enterprise. We have established a strict quality inspection system, and every cold-drawn tube must go through more than 30 strict inspection procedures, including raw material incoming inspection, online process inspection, random sampling inspection and final factory inspection. Every link is strictly controlled, every indicator is carefully tested, and finally the 99.99% qualified rate is achieved, which is our solemn commitment to customers. In addition, we also provide personalized customized services, and can tailor products with special dimensions, materials and surface treatments according to customers’ drawings and technical requirements, so as to solve the special needs of different industries.

Precision casting quality, integrity creates the future. Carridea’s high-precision cold-drawn seamless steel tubes, with their excellent performance, full specifications and reliable quality, have won the trust and praise of customers at home and abroad. We will continue to adhere to the concept of "quality first, customer foremost", keep innovating and forging ahead, and provide more high-quality, high-precision products for the global industrial field, and work together with customers to create a better tomorrow.