Alloy steel pipe

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ASTM A335 Alloy Steel Seamless Pipe

ASTM A335 Alloy Steel Seamless Pipe

Alloy Steel ERW Pipe

Alloy Steel ERW Pipe

ASTM A335 Sch 40 Alloy Steel Welded Pipe

ASTM A335 Sch 40 Alloy Steel Welded Pipe

How do you calculate alloy steel pipe weight in kg?

Steel alloying with chromium, nickel, and molybdenum makes alloy pipes. Depending upon the percentages of the alloying elements, the steel transforms to higher alloys and even super alloys like Monel, Hastelloy, Inconel, etc. Working with a super alloy manufacturer for several years, I can help you to calculate the alloy steel pipe weight in kg.

For any project using pipes to be successful, it is essential to know their correct diameters and weight. Though pipes are only a small part of the project, not using the right ones with the correct weight will cause huge damage. Hence it is essential to know how to calculate pipe weight in kilograms. Pipes are circular in contrast to the tubes, available in many other shapes.

For calculating the weight of the pipes, it is essential to know their OD or outer diameter, ID or inner diameter, thickness, length of the pipe, and density. All of it is measured in millimeters will help to calculate the weight of the alloy steel boiler pipe and others in kg or kilogram.

  • The general formula for calculating the pipe weight in kg = sectional area mm2 x length m x density g/cm3.
  • Reputed manufacturers and suppliers also offer many calculators to calculate the alloy steel boiler pipe and other pipes in kg or kilograms.

Alloy steel seamless pipe suppliers in India

Advantages and disadvantages of an alloy steel erw pipe?

Compared to seamless steel pipes, alloy steel ERW pipes have advantages and disadvantages. The advantages of ERW pipes over seamless pipes include the following, among others.

  • Have high dimensional accuracy
  • Smaller deviation because of less diameter and wall thickness
  • Have better mechanical properties because of advanced welding and heat treatment technology
  • Have high concentricity, impact toughness, excellent steel extension, and others

There may be a few disadvantages of the ERW pipes only because of the process, surface, and weld defects.

Alloy steel seamless pipe


Purchase alloy steel welded pipe and erw pipe in large or small quantities as per ASTM A335 standards

Alloy steel welded pipe vs. ERW pipe

Though the overall performance of alloy steel welded pipe and ERW or electric resistance welded pipes are the same, there are also many significant advantages. A few of them include the following, among others.

  • The biggest advantage of ERW pipe over other welded pipes is the welding seam running parallel to the pipe. 
  • Unlike the welded pipes, there is no use of any fusion metals in making ERW pipes.
  • In ERW pipes, it is not possible to see or feel the welded seam visible, in welded pipes to make it unpleasant.
  • Alloy steel ERW pipes are more useful in many applications than the welded pipes

Alloy steel pipe specification, chemical composition, mechanical properties

Alloy Steel Pipe Specifications


Alloy Steel Pipe Properties

Alloy pipe are commonly used in oil, natural gas, coal gas, water industries

What are the applications of high alloy steel seamless pipe?

High-alloy steel seamless pipes have more alloying elements like chromium, nickel, molybdenum, etc., compared to the less than 5% in low-alloy pipes. Hence they have excellent properties to be cost-effective solutions to many applications. A few seamless alloy steel pipe applications include the following, among others.

  • In boilers and heat exchangers, because of their extreme heat resistance
  • In chemical, petrochemical, fertilizer plants, oil refineries, sugar mills, etc
  • Automotive and other industrial equipment applications

Various types of alloy steel erw pipes

Alloy 20/21/33 steel pipe

Alloy 21/20/33 steel pipes

ASTM A355 P22 Seamless Alloy Steel Pipe

ASTM A355 P22 Seamless AS Pipe

42CrMo/ SCM440 alloy steel seamless pipe

SCM440/ 42CrMo alloy steel seamless pipe

Galvanized low alloy coated steel pipe

GI low alloy coated steel pipes

15cr mo alloy solid steel pipes

15cr mo solid alloy steel pipes

ASTM A423 Alloy Steel Seamless Pipe

ASTM A423 AS Seamless Pipe

40MM alloy steel pipe

40MM alloy steel welded pipes

25crmo4 alloy steel pipe

25crmo4 alloy steel pipes

36 inch ASTM A 335 Grade P11 alloy galvanized steel pipe

36 inch ASTM A 335 Gr P11 alloy gi steel pipe

Alloy steel boiler pipe in SCH-5, SCH-10, SCH-60, SCH-40, SCH-80 and std as per ASME SA335

What is the difference between schedule 40 and schedule 40s in alloy pipe?

Schedule 40 and 40S for pipes refer to the series of their nominal wall thickness and not the grades. The different pipe schedules have the same diameter but different wall thicknesses. The higher the schedule, the higher the wall thickness and the strength to withstand high temperatures and pressure. The following are the differences between Schedule 40 and 40S in alloy pipe

  • 40S alloy pipe has a higher wall thickness than 40 alloy pipe
  • 40S alloy pipe is stronger than 40 alloy pipe
  • 40S is useful in many applications because of its higher strength than 40 alloy pipe
Buy seamless alloy steel pipe from genuine stockist in Mumbai, check AS pipe price per kg in India

What are 4 different processes that can be used to weld an AS pipe?

Out of the many welding processes of AS pipes, the following four are the most significant.

  • ERW or electric resistance welded pipe by cold forming of alloy steel strip using rollers for getting a longitudinal seam running parallel to the pipe
  • SMAW or shielded metal arc welding, aka manual metal arc welding, without using any shielding gas
  • FCAW or flux-cored arc welding is by using semi-automatic machines for high productivity welding solutions for pipes
  • TIG or Tungsten inert gas welding has high equipment costs but low deposition rates to produce high-quality welds.