Established in 2003, Shaanxi Kerlimar Engineers Co., Ltd. has stood at the forefront of the metallurgical and piping industry for over 21 years. As a premier provider of 200mm (8-inch) stainless steel pipes, we specialize in delivering structural integrity for complex industrial environments.
Our expertise spans across diverse materials including carbon steel, alloy steel, and high-grade stainless steel. Whether the requirement is for seamless pipes, straight seam welded variants, or spiral welded configurations, our manufacturing standards rigorously adhere to ASTM, ASME, EN, and JIS protocols.
Years of Global Trade
Authorized Patents
Custom Engineering
International Patents
Utilizing Grade 304, 316L, and Duplex 2205. Our 200mm pipes offer exceptional resistance to intergranular corrosion and chloride stress corrosion cracking.
From hot-piercing to cold-drawing, each 200mm pipe undergoes ultrasonic and eddy current testing to ensure 100% defect-free surfaces.
Wall thickness ranges from Schedule 5S to XXS, catering to high-pressure steam lines and low-pressure chemical transfer alike.
The 200mm nominal pipe size (NPS 8) is a critical dimension in modern industry. It serves as the primary artery for municipal water systems, desalination plants, and chemical processing facilities. At Kerlimar, we ensure that every millimeter of the pipe is optimized for flow efficiency and longevity. The Information Gain we provide lies in our proprietary heat treatment processes that stabilize the austenitic structure, ensuring the pipe remains ductile even under cryogenic temperatures.
Corrosive marine environments demand the high molybdenum content found in our specialized 200mm 316L pipes for topside piping.
Linking back to our R&D in wind power, our piping solutions are used in the cooling systems of large-scale renewable energy storage facilities.
Sanitary grade 200mm pipes with inner surface roughness (Ra) < 0.4μm ensure zero bacterial accumulation in milk and brewery lines.
China's stainless steel industry has transitioned from "Mass Production" to "Intelligent Manufacturing." At our Shaanxi facility, we leverage the regional industrial cluster effect to source raw materials with unparalleled speed. This efficiency translates into shorter lead times—often 30% faster than European counterparts—without compromising on the ASTM A312 or A358 standards.
We control the process from billet selection to final polishing, reducing middle-man costs and ensuring total traceability of the 200mm pipe's chemical composition.
Authorized as a national High-tech Enterprise, we employ AI-monitored welding systems that provide real-time data on weld integrity, surpassing traditional manual checks.
Our chairman, Mr. Ming SUN, integrates environmental ethics into production. Our factory utilizes closed-loop water systems and solar energy to offset the carbon footprint of steel fabrication.
Development of 200mm pipes with integrated RFID and sensor-compatible fittings for real-time monitoring of fluid velocity, temperature, and corrosion rates in "Digital Twin" factories.
Transitioning to Hydrogen-based steel production. Kerlimar aims to be the leading supplier of "Green Stainless Steel" for the global hydrogen economy, particularly for liquid hydrogen transport which requires specialized low-temp alloys.
Adapting 200mm piping for ultra-high-pressure deep-sea mining and space-based habitats, where material reliability is a matter of survival.
Kerlimar
