Company.
Changzhou Lianyi Special Stainless Steel Pipe Co., Ltd.
Changzhou City Lianyi Special Stainless Steel Tubes Co., Ltd was found in 1984, formerly known as the Wujin Experimental Factory of Shanghai Iron and Steel Research Institute. Lianyi is one of the national High-tech Enterprise specializing in the R&D and manufacture of High-Temperature Alloy Pipes, Special Stainless Steel Pipes and stainless...
Founded
Annual production
LIANYI Main Products
Lianyi is one of the national High-tech Enterprise specializing in the R&D and manufacture
Small-Diameter Thick-Wall Pipe
Stainless Steel Corrugated Pipe
LIANYI Application
Lianyi is one of the national High-tech Enterprise specializing in the R&D and manufacture of High-Temperature Alloy Pipes, Special Stainless Steel Pipes and stainless steel bellows in the fields of Aviation, Aerospace, Rail Transit, Automobile Engines, Hydraulics and Pneumatics, and New Energy, etc.
LIANYI News
2021-11-24
Functions of stainless steel industrial pipes
The corrosion resistance of stainless steel industrial pipes depends on the alloying elements contained in the steel. Chromium is the fundamental element that makes stainless steel pipes corrosion resistant. When the chromium content in the steel reaches about 12, the chromium and the oxygen in the corrosive medium form a very thin oxide film (self-passivation film) on the surface of the steel. , Can prevent further corrosion of the steel matrix. In addition to chromium, the commonly used alloying elements of stainless steel industrial pipes include nickel, molybdenum, titanium, niobium, copper, nitrogen, etc., to meet the requirements of various uses for the arrangement and function of stainless steel pipes.
2026-09-29
Changzhou City Lianyi at Tube China (Sep 21-24): Displaying seamless, stainless steel, ultra-thin wall & aerospace tubes. Certified AS9100D, IATF16949, NADCAP Heat-treating.
2026-09-18
Changzhou Lianyi at Tube Düsseldorf 2026: Showcasing seamless, stainless steel, aerospace & automotive tubes. Certified AS9100D, IATF16949, NADCAP Heat-treating.
2021-11-24
Functions of stainless steel industrial pipes
The corrosion resistance of stainless steel industrial pipes depends on the alloying elements contained in the steel. Chromium is the fundamental element that makes stainless steel pipes corrosion resistant. When the chromium content in the steel reaches about 12, the chromium and the oxygen in the corrosive medium form a very thin oxide film (self-passivation film) on the surface of the steel. , Can prevent further corrosion of the steel matrix. In addition to chromium, the commonly used alloying elements of stainless steel industrial pipes include nickel, molybdenum, titanium, niobium, copper, nitrogen, etc., to meet the requirements of various uses for the arrangement and function of stainless steel pipes.
Contact information
E-mail: steel@wjlianyi.com
Address: No. 109, Dailuo Road, Luoyang Town, Wujin District, Changzhou City, Jiangsu Province
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