A premier manufacturer and global exporter of high-quality Flanges, Pipe Fittings, and Forged Fittings. Delivering precision-engineered solutions in Stainless, Carbon, and Alloy Steel to over 60 countries.
High-precision Seamless & Welded Tubes for critical heat transfer and instrumentation.
Unlike pipes, SOTCO Tubes are ordered by exact Outside Diameter (OD) and wall thickness, ensuring precise fitment for heat exchangers, condensers, and hydraulic lines. We stock a vast range of tubing in Stainless Steel, Duplex, and Exotic Alloys, featuring tight dimensional tolerances and superior surface finishes (Bright Annealed/Electro-Polished).
Key Applications: Shell & Tube Heat Exchangers, Boilers, High-Pressure Hydraulic Systems, and Ultra-High Purity (UHP) gas lines in semiconductor industries.
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Manufacturing Types |
Seamless: Cold Drawn / Cold Rolled (Exchangers & Instrumentation) Welded: TIG / Laser Welded (Boilers & Sanitary) |
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Size Range (OD) |
Instrumentation: 1/8″ to 1″ OD (3mm to 25mm) Heat Exchanger: 3/4″ to 4″ OD General: Up to 8″ OD (Custom sizes available) |
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Wall Thickness |
Gauges (BWG/SWG): 10G, 12G, 14G, 16G, 18G, 20G, 22G Metric: 0.5mm to 12.7mm (Custom heavy wall available) |
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Form & Length | Straight Lengths (6m / 12m), U-Tubes (Bent to radius), Coiled Tubing (Up to 300m) |
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Surface Finish | Annealed & Pickled (AP), Bright Annealed (BA), Polished (Grit 320/400), Electro-Polished (EP) for Pharma |
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Key Standards | ASTM A213 (Boiler), A269 (General), A249 (Welded), A270 (Sanitary), B111 (Copper), B163 (Nickel) |
Austenitic: TP304/L, TP316/L, TP321, TP316Ti
Duplex: UNS S31803 / S32205
Sanitary: ASTM A270 (Ra < 0.4µm)
Heat Exchanger: ASTM A179 (Seamless Low Fin)
Boiler: ASTM A192, A210 Gr.A1
Alloy: ASTM A213 T11, T22, T5, T9, T91
Inconel: 600, 625 (UNS N06625)
Incoloy: 800, 825 (UNS N08825)
Monel: 400 (UNS N04400)
Hastelloy: C276, C22
Titanium: Gr.2 (Condensers)
Copper: Cu-Ni 90/10, Admiralty Brass (B111)
Others: Tantalum, Zirconium
In-house precision U-bending service for heat exchangers with heat treatment of bends.
100% Eddy Current Testing (ECT) and Hydro-testing to ensure leak-proof performance.
Bright Annealed and Electropolished options for pharmaceutical and food grade applications.