Seamless Steel Pipe

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Leading Supplier of Steel Seamless Tubes and Pipes

Kaizen Steel Industries is a top manufacturer & supplier specializing in Hot Finish and Cold Drawn Carbon Steel Seamless Tubes. Seamless tubes are used in various industries such as Mining, Oil & Gas Transportation, Automobiles, Cranes, Hydraulics, Boilers, Power Plants, Cooling Towers, Railways, Nuclear Power Stations, and Chemicals. We are dedicated to delivering pipes that meet internationally recognized quality standards, with a strong focus on maintaining the highest level of quality.

Seamless steel pipes are commonly used to transport fluids like water, natural gas, waste, and air. They are also essential in high-pressure, highly corrosive environments, such as in the oil & gas, power generation, and pharmaceutical industries.

Advantages:

  • Strength: Since seamless pipes have no welded seam, they are stronger and can typically handle about 20% more working pressure than welded pipes of the same material and size.
  • Corrosion Resistance: The absence of a seam reduces the risk of impurities and defects, making seamless pipes more resistant to corrosion.
  • Less Testing: Without a weld, there’s no need for testing the pipe for weld integrity, simplifying the inspection process.

Is Seamless Pipe Stronger Than Welded Pipe?

Yes, seamless steel pipes are generally stronger than welded pipes. They have better pressure capacity and higher strength compared to ERW welded steel pipes. This makes them ideal for use in high-pressure equipment, as well as in thermal and boiler industries. In welded steel pipes, the welded seam is often the weak point, which can affect the overall performance of the pipe.

Kaizen Steel also prides itself on its flexibility, producing pipes designed to meet the specific needs of individual customers. The entire manufacturing process at Kaizen Steel undergoes thorough inspection at every stage, from the beginning to the final dispatch. This strict quality control ensures that every product leaving our facility meets the highest industry standards.

Seamless Pipe Specification

Size Range6NB to 1200NB IN
TypeRound, Square, Rectangle, Coil, “U” Shape, Hydraulic & Honed Tubes
ScheduleSCH. 5, 10, 20, 30, 40, 60, 80, 100, 120, 140, 160, XXS.
LengthSingle Random, Double Random & Cut Length
EndPlain End, Beveled End

ASTM Standard for Seamless Steel Pipe

Executive Standard

Grade / Material

Product Name

ASTM A53

A, B

Black and Hot-Dipped Zinc-Coated Steel Pipes Welded and Seamless

ASTM A106

A, B

Seamless Carbon Steel for High Temperature Service

ASTM A179

Low Carbon Steel

Seamless Cold-Drawn Low-Carbon Steel Heat Exchanger and Condenser Tubes

ASTM A192

Low Carbon Steel

Seamless Carbon Steel Boiler Tubes for High Pressure
ASTM A210A1, CSeamless Medium-Carbon and Alloy Steel Boiler and Superheater Tubes
ASTM A213

T5, T11, T12, T22

TP 347H

Seamless Ferritic and Austenitic Alloy Steel Boiler, Superheater and Heat-Exchanger Tubes
ASTM A312TP304/304L, TP316/316LSeamless Steel Pipe for Stainless Materials
ASTM A333Gr.6Seamless and Welded Steel Pipe for Low-Temperature Service

ASTM A335

P9, P11, P22

Seamless Ferritic Alloy Steel Pipe for High-Temperature Service

ASTM A519

4130,4140

Seamless Carbon and Alloy Steel for Mechanical Tubing
ASTM A789 Seamless Ferritic/Austenitic Stainless Steel Tubing for General Service

API Standard for Seamless Steel Pipe

Executive Standard

Grade / Material

Product Name

API Spec 5CT

J55, K55, N80, L80,C90, C95, T95, P110, M65

Spectification for Casing and Tubing

API Spec 5L PSL1 / PSL2

A,B X42, X46, X52, X56, X60, X65,. X70

Specification for Line Pipe

DIN / EN Standard for Seamless Steel Pipe

Executive Standard

Grade / Material

Product Name

DN 17175/EN10216-2

ST35, ST45, ST52, 13CrMo44

Seamless Steel Tube for Elevated Temperature

DIN 2391/EN10305-1

St35, St45, St52

Cold Drawn Seamless Precision Pipe

DIN 1629/EN10216-1

St37, St45, St52

Seamless Circular unalloyed Steel Tubes Subject to Special Requirments

Industrial Uses & Applications of Seamless Pipes

Seamless steel pipes are widely used in various industries. They are commonly found in cryogenic pressure vessels, piping systems, and more. Some of their key applications include:

  • Air Preheaters
  • Air Cooler Tubes
  • Boilers
  • Heat Exchanger Tubes
  • High-Pressure Equipment
  • Steam Release Pipes
  • Steam Trap Piping

And many other applications.

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