Ratnamani's Stainless Steel Seamless Division consists of a number of Hot Extrusion Press', a number of Cold Pilgering Mills, Draw Benches, Heat Treatment Furnaces, U-Bending Facilities and all necessary testing equipment to produce high-quality tubes & pipes conforming to various International Standards. These facilities are capable of manufacturing tubular products in Martensitic, Ferritic, Austenitic, Super Austenitic, Duplex/Super Duplex grades and High Nickel Alloys.
The Hot Extrusion Press is the core strength of the company, enabling to produce Mother Hollows with closer dimensional tolerances & good surface finish. Ratnamani is self-sufficient in manufacturing of Mother Pipes with special chemistry.
The Hot Extruded Mother Hollows are used for manufacturing Stainless Steel Seamless Instrumentation Tubes and Heat Exchanger Tubes. The tubes are manufactured using high speed Cold Pilger Mills & Draw Benches.
The tubes are heat treated in Off-Line Bright Annealing / Conventional Annealing Furnaces.
The tubes are supplied according to appropriate standards as well as customer specifications in a large variety of steel grades and dimensions. Specific requirements on execution, tolerances, lengths, and mechanical and corrosion properties are offered on request.
We manufacture high-quality stainless steel and nickel alloy seamless coil tubing desigred for demanding applications where corrosion resistance, dimensional accuracy, and material purity are critical. Our coiled tubing is supplied in one continuous length, eliminating the need for welded joints and thereby reducing the risk of contamination, leaks, and mechanical failure. Tubing can be delivered as loose bulk-wound coils or level-wound on reels in various sizes to suit installation requirements. Using continuous-length seamless tubing significantly reduces installation time, as it removes the need for welding multiple tube sections. The seamless construction also ensures uniform dimensions and consistent mechanical properties throughout the entire coil, resulting in enhanced performance and long-term reliability. As a result, our seamless coil tubing minimizes the likelihood of leaks at welds or seams and reduces the potential for contaminant buildup, making it ideal for high-performance and critical-service environments.