Aaditya Stainless's
Products
Electric Resistance Welded
Stainless Steel Hydraulic, Instrumentation, High Precision, and Heat Exchanger Tubes are primarily manufactured using the ERW (Electric Resistance Welding) process. In this method, strip edges are heated using electrical resistance and forged together without filler material, ensuring a clean and uniform weld.
These tubes are further enhanced through cold drawing and annealing processes, resulting in superior dimensional accuracy, smooth surface finish, and improved mechanical properties.
Widely used in hydraulic systems, instrumentation lines, heat exchangers, and high-pressure applications, these tubes ensure consistent performance, durability, and corrosion resistance in demanding environments.
| Parameter | Details |
| Outside Diameter Range | 6 mm to 101.6 mm |
| Wall Thickness Range | 0.70 mm to 8.0 mm |
| Length | As per requirement, maximum up to 24 meters |
| U-Tubes | As per customer drawing, developed length up to 36 meters |
| Grades | 304/L/H/LN; 316/L/H/LN/Ti; 309; 310/L/H/S; 317/L/H; 321/H; 347/H; 405; 409/L; 410; 430/Ti; 436; 439; 1.4301; 1.4306; 1.4571; 1.4541; 1.4401; 1.4404; UNS S31500; UNS S31803; UNS S2205; UNS S32750; UNS S32760 |
| Specification (Seamless) | ASTM A-213; ASTM A-268; ASTM A-269; ASTM A-270; ASTM A-789; EN 10216-5 |
| Specification (Welded) | ASTM A-249; ASTM A-268; ASTM A-269; ASTM A-270; ASTM A-554; ASTM A-688; ASTM A-789; ASTM A-803; EN 10217-7 |
| Supply Condition | Solution annealed, pickled and passivated; Bright annealed |
EFW / E.F.S.W (Electric Fusion Welded)
Stainless Steel Pipes
Stainless Steel Welded Pipes are manufactured using advanced Electric Fusion Welding (EFW) and Electric Fusion Spiral Welding (E.F.S.W) processes, designed for larger diameters and heavy wall thickness applications.
In the EFW process, plate edges are fused using high-energy heat with or without filler material, producing strong, high-integrity welds suitable for demanding industrial conditions. For larger diameters, the E.F.S.W (spiral welding) method forms pipes by continuously welding a steel coil in a spiral configuration, ensuring flexibility in size and efficient material utilization.
| Parameter | Details |
| Outside Diameter Range | 1/8" NB to 12" NB |
| Wall Thickness Range | SCH 5S to SCH 80S |
| Length | As per requirement, maximum up to 24 meters |
| Grades | 304/L/H/LN; 316/L/H/LN/Ti; 309; 310/L/H/S; 317/L/H; 321/H; 347/H; UNS S31500; UNS S31803; UNS S2205; UNS S32750; UNS S32760 |
| Specification | ASTM A-312; ASTM A-554; ASTM A-778; ASTM A-790 |
| Supply Condition | Solution annealed, pickled and passivated; can be supplied in other conditions as per requirement |
Seamless Stainless Steel Pipes
Stainless Steel Seamless Pipes are manufactured without any welding process, ensuring a uniform structure and superior strength throughout the pipe. These pipes are produced by extruding solid billets into hollow tubes, eliminating any weld seams and potential weak points.
Seamless pipes are widely used in oil & gas, power plants, petrochemical, heat exchangers, and high-pressure systems, where performance, safety, and durability are essential.
| Parameter | Details |
| Outside Diameter Range | 1/8" NB to 12" NB |
| Wall Thickness Range | SCH 5S to SCH XXS |
| Length | As per requirement, maximum up to 24 meters |
| Grades | 304/L/H/LN; 316/L/H/LN/Ti; 309; 310/L/H/S; 317/L/H; 321/H; 347/H; UNS S31500; UNS S31803; UNS S2205; UNS S32750; UNS S32760 |
| Specification | ASTM A-312; ASTM A-790 |
| Supply Condition | Solution annealed, pickled and passivated; can be supplied in other conditions as per requirement |
