The Annealed Seamless Pipes are manufactured in precision tolerances, used for the various applications especially Oil & Gas. The Seamless Pipes are formed using a meticulous heat treatment process, followed by controlled quality checks. Having a focus on accuracy, these pipes are designed for applications demanding high quality of internal and external surfaces.

SPECIFICATION

• ASTM A 312 / A 268
• ASME SA 312 /SA 268 / SA 790
• EN 10216-5/TC1/TC2
• EN 10297-2

OUTER DIAMETER (OD)

• 10.30 MM TO 323.90 MM OUTER DIAMETER (OD)

WALL THICKNESS (WT)

• SCH 5S / SCH 10S / SCH 20S / SCH 40S / SCH 80S / SCH 160S

LENGTH/DEV.LENGTH

• UP TO 12 METER OF FIXED/RANDOM/DOUBLE RANDOM LENGTHS

SURFACE FINISHES

• ANNEALED, PICKLED & PASSIVATED
• POLISHED (UP TO 800 GRIT OD MECHANICAL POLISH)
• BEVELLED ENDS / PLAIN ENDS

Our heat exchanger seamless tubes, commonly known as U Tubes, are engineered for efficient heat transfer in a variety of applications. These tubes feature a ‘U’ shape, maximizing the contact area for heat exchange. Crafted from stainless steel, they offer exceptional corrosion resistance and ensure efficient thermal performance for heat exchangers, condensers, and other thermal processes.

SPECIFICATION

• ASTM A 213 / A 269 / A 268
• ASME SA 213 / 269 / A 268
• EN 10216-5 / TC1 / TC2 + EN 1127-D4/T4 – D4/T3 – D3/T3
• ASTM / ASME A/SA 688 & TEMA RCB 23C

OUTER DIAMETER (OD)

• 9.53 MM TO 50.88 MM OUTER DIAMETER (OD)

WALL THICKNESS (WT)

• 0.50 MM TO 3.68 MM WALL THICKNESS (WT)

LENGTH/DEV.LENGTH

• UP TO 25 METER OF STREIGHT/DEVELOPED LENGTHS.

PROCESS FEATURES

• FINISH – BRIGHT ANNEALED / ANNEALED & PICKLED
• STRESS RELEIVING (SR) – U-BEND 1.50 X D UP TO 300/1000 MM BEND/FULL LENGTH
• DYE PENETRANT (DP) – ATER U BENDING

Our Bright Annealed Seamless Tubes are formed using a meticulous heat treatment process. This treatment not only ensures exceptional corrosion resistance, but also imparts a pristine, mirror-like surface finish. With a focus on precision, these tubes are designed for applications demanding high quality internal and external surfaces, such as the food, pharmaceutical, and other related industries.

SPECIFICATION

• ASTM A 213 / 269
• ASME SA 213 / 269
• EN 10216-5 / TC1 / TC2 + EN 1127-D4/T4 – D4/T3 – D3/T3
• EN 10305-1

OUTER DIAMETER (OD)

• 4 MM TO 50.80 MM OUTER DIAMETER (OD)

WALL THICKNESS (WT)

• 0.50 TO 6.00 MM WALL THICKNESS (WT)

LENGTH

• UP TO 25 METER OF FIXED AND RANDOM LENGTHS

TYPES OF BRIGHT ANNEALED FINISHES

• RA < 0.4 MICRON ID & OD ROUGHNESS
• RA < 0.8 MICRON ID & OD ROUGHNESS
• RA < 1.2 MICRON ID & OD ROUGHNESS

Seamless instrumentation tubes are engineered for precision-critical applications. These tubes exhibit exceptional dimensional accuracy, low roughness, and high internal polish. They have tight tolerances, making them ideal for applications where exact measurements are critical. These tubes are extensively used in applications where contamination is a concern.

SPECIFICATION

• ASTM A 213 / A 269 / A 268
• ASME SA 213 /SA 268 / SA 789
• EN 10216-5/TC1/TC2
• EN 10297-2

OUTER DIAMETER (OD)

• 6 MM TO 101.60 MM OUTER DIAMETER (OD)

WALL THICKNESS (WT)

• 0.50 MM TO 12.70 MM WALL THICKNESS (WT)

LENGTH/DEV.LENGTH

• UP TO 25 METER OF FIXED/RANDOM LENGTHS

SURFACE FINISHES

• ANNEALED, PICKLED & PASSIVATED
• BRIGHT ANNEALED
• POLISHED (UP TO 800 GRIT OD MECHANICAL POLISH)

Raw Materials:

• Locally sourced Stainless Steel Solid Round Bright/Black Bars
• Suppliers
• Reputed Indigenous Suppliers

Testing Parameters for Round Bars

• 100% Ultrasonic Testing for all round bars
• Samples per Heat for Chemical Analysis/Testing, sent to Third Party NABL approved Laboratory
• Samples per Heat for Delta Ferrite Analysis/Testing, sent to Third Party NABL approved Laboratory