Changzhou Lianyi Special Stainless Steel Pipe Co., Ltd. was established in 1984. It was originally the Wujin Experimental Factory of Shanghai Iron and Steel Research Institute. It is now a professional manufacturer integrating R&D, manufacturing and sales of various special and precision stainless steel seamless steel pipe products. The first batch of enterprises that obtained the national stainless steel pipe production license. At the beginning of its establishment, it was based on the preemption of the high-end product market. In a relatively short period of time, the stainless steel small-diameter steel pipe (stainless steel seamless capillary) and the stainless steel extremely thin-wall seamless steel pipe, which were relatively scarce in China at that time, were successfully produced.

The company has more than 200 employees, including more than 30 engineers and technicians. The company covers an area of 33,000 square meters, and the building facilities such as factory buildings are 22,000 square meters.The company has been awarded the title of “AAA Grade” Credit Enterprise of Changzhou City for 20 consecutive years, and has passed ISO9001 Quality Management System, ISO14001 Environmental Management System Certification and GJB 9001C-2017 National Standard Quality System Certification. It has a production license for stainless steel seamless steel pipe pressure pipe components issued by the state and is currently a provincial high-tech enterprise.

The company has a complete set of stainless steel seamless steel pipe professional production equipment and testing equipment, the main products are aerospace steel seamless steel pipe, stainless steel extremely thin wall seamless steel pipe, stainless steel capillary (stainless steel small diameter steel pipe), stainless steel for boiler heat ex-changer seamless steel tubes, stainless steel seamless pipes for pressure, etc. Features: high precision, no cutting, smooth surface, uniform pipe wall, corrosion resistance, high temperature resistance, high pressure resistance, etc. These tubes can be applied to national defense scientific research, aerospace, automated instrumentation, precision instrumentation, various types of machinery, petrochemical, chemical, metallurgical, rail transit and other industries.

The company carries out strict checks on the realization of the products and the control of the process. Through these products, the customers are satisfied with the products that meet the certain requirements to achieve customer satisfaction and directly generate value. Our company mainly controls the realization of the products and the process through the following aspects: 1 To make a overall plan for the realization of the products, mainly including the quality objectives and requirements of the products, the requirements for the product determination process, documents and resources, and the requirements of the products. Verification, confirmation, monitoring, inspection, etc.; 2 customer-related processes, such as the determination of product-related requirements, the review of product-related requirements, the process of communicating with customers to confirm the product, etc.; For the design and development of products, according to the requirements of customers to confirm the drawings and process drawings; 4 control of procurement, through the customer's request for the corresponding procurement, in the procurement process will be strict with the supplier's qualifications and quality check and strictly control the quality of raw materials; 5 control and control in the production process, including the confirmation of key processes and the control of each link; 6 control of the inspection process, through the first inspection and inspection of the products to ensure the production of the products The quality of the process, and finally through the final inspection to ensure the eligibility of the factory in order to stabilize the product and improve the quality of the product from the design to the factory.

Since the establishment of the company, it has provided supporting services for aerospace enterprises. In the 1990s, the stainless steel extremely thin-walled seamless steel tubes developed for the aerospace sector won the third prize of Jiangsu Science and Technology Progress Golden Bull Award and ministerial-level scientific and technological progress, and were received by Nanjing Chen’guang. The award of the machine factory.

The company has developed and produced stainless steel pipes in strict accordance with the standards of aerospace and aviation. It has been used in aerospace industry in batches. It has successfully provided high-quality and high-demand steel pipes for and defense enterprises, and has won the outstanding achievements of China Aerospace Science and Technology Corporation and China Aerospace Engineering Office. Supplier title.

Aerospace tube
Technical standard: GJB 2296A-2005
Product features: high precision steel pipe, smooth surface, corrosion resistance, high temperature and high pressure resistance

Automobile fuel rail pipe (turbocharged engine)
Technical standard: DIN EN 10216-5 (2013)
Product features: high precision, smooth, corrosion-resistant, high pressure

Very thin wall stainless steel seamless steel pipe
Technical standard: GB/T 3089-2008 (the company participates in the development of national standards)
Product features: thin and uniform wall, high precision, smooth surface, corrosion resistance, high temperature and high pressure

Stainless steel small diameter tube
Technical standard: GB/T 3090-2000, ASTM A632
Product features: small diameter, high precision
Product size: outer diameter 0.6mm-6mm; wall thickness 0.15mm-2mm

Ordinary stainless steel seamless steel pipe
Technical standards: GB/T 14975/14976-2012; ASTM A269/A213
This product is suitable for textile machinery, pneumatic components, chemical equipment, electric appliances, solenoid valves, cylinder tubes, etc.
Product size: outer diameter 6mm-130mm; wall thickness 0.40mm-6.00mm