Buy seamless heat exchanger tubes for manufacturing high pressure and higher pressure steam boilers and piping – Our large inventory of stainless steel, carbon steel and alloy steel pipes and tubes include a wide range of seamless and welded heat exchanger tubes. We are one of the leading heat exchanger tube manufacturers in India, with Ex-stock inventory of over 500 tons. We sell heat exchanger pipes and tubes in size range of 10mm OD to 219 mm in various ASTM, ASME and DIN specifications. Given our extensive sourcing and selling expertise we sell over 5000 tons of heat exchanger steel pipes and tubes p.a. across India. Our customers comprise of end users as well as traders in 50/50 ratio. Given our increasing sales volume, we are able to offer our customers very competitive prices.

Even traders find it beneficial to purchase heat exchanger pipes from us. All materials are also available in accordance to equivalent DIN/ EN standards and grades. We are manufacturers, stockholder and suppliers of seamless alloysteel pipes in various standards. All our alloy steel seamless pipes and tube products are supplied with 3.1 specific test certificates, according to EN 10204. Certification according to 3.2 can be agreed at the time of ordering.

Metallica makes it easy for you to source top quality alloy steel seamless heat exchanger tubes at the lowest prices in India. We specialize in providing deliveries to your factory directly from our warehouse or our principal suppliers.

Alloy Steel Heat Exchanger Tubes Manufacturer, Wholesaler, Dealer, Supplier and Distributor In India and Abroad
  • As one of the largest manufacturer of Alloy Steel Heat Exchanger Tubes, we have over 6000 tons in stock

  • Alloy Steel Heat Exchanger Tubes Available at around Rs. 105/KG for Sale in India.

  • Our Annual Sales Volume for Alloy Steel Heat Exchanger Tubes is Over 25,000 tons in India and Overseas.

  • Alloy Steel Pipes, are Sold with Complete Range of Related Pipe Fittings and Flanges

  • On-Time Delivery with Quality Assurance and Price Guarantee for Steel Pipes

Types of Alloy Steel Heat Exchanger Tubes

Among the key heat exchanger steel pipe products we can manufacture and supply include:

Steel Grade Standard Size
SA106B, SA106C, SA179, SA192, SA210A1, SA210C ASME SA106, ASME SA179, ASME SA192, ASME SA210 φ10-1067mm
T1, T1a, T1b ASME SA209 φ10-219mm
T5, T9, T11, T12, T22, T23, T91, T92 ASME SA213 φ19-127mm
P5, P9, P11, P12, P22, P23, P91, P92 ASME SA335 φ60.3-1067mm
ST35.8, ST45.8, 15Mo3, 13CrMo44, 10CrMo910, X20CrMoV121 DIN17175 φ6.35-1067mm
P195GH, P235GH, P265GH, 16Mo3,13CrMo4-5,10CrMo9-10 EN10216-2 φ10-1067mm
304/304L, 316/316L, 310S, 321, 347/347H ASME SA213, ASME SA249 φ4-159mm

Stock Range of Alloy Steel Heat Exchanger Tubes

Product Heat Exchanger Steel Tubes
Materials Carbon Steel, Alloy Steel, Stainless Steel
Outer Diameter Hot finish: 2″ – 30″,Cold drawn: 0.875″ – 18″
Wall Thickness Hot finish: 0.250″ – 4.00″,Cold drawn:0.035″ – 0.875″
Length Random Length, Fixed Length, SRL, DRL
Heat Treatment Bright Annealed, Normalized, Stress relieved, Cold finished, Quenched and Tempered
Packing Plastic End Caps in Both Ends, Bundled Packing with Steel Strips
Testing & Inspection Chemical Analysis, Mechanical Properties (Ultimate tensile strength, Yield
strength, Elongation), Technical Properties (Flattening Test, Flaring Test, Bending Test, Hardness Test, Blow Test, Impact Test)
Test Certificates As per EN 10204 3.1B

What is a Heat Exchanger Tube?

A heat exchanger is a device used to transfer heat between two or more fluids. Heat exchangers are used in both cooling and heating processes.[1] The fluids may be separated by a solid wall to prevent mixing or they may be in direct contact.[2] They are widely used in space heating, refrigeration, air conditioning, power stations, chemical plants, petrochemical plants, petroleum refineries, natural-gas processing, and sewage treatment. The classic example of a heat exchanger is found in an internal combustion engine in which a circulating fluid known as engine coolant flows through radiator coils and air flows past the coils, which cools the coolant and heats the incoming air. Another example is the heat sink, which is a passive heat exchanger that transfers the heat generated by an electronic or a mechanical device to a fluid medium, often air or a liquid coolant.

What is the difference between Alloy Steel Pipe and Tube?

Although pipes and tubes may look similar, they are in fact quite different in nomenclature and sizing. Remember that pipes and tubes are rarely interchangeable. The difference between pipe and tube include:

  • Shape – Pipes are always round, whereas tubes can be square, rectangular or round.
  • Tolerances – Pipe tolerances are set but not too restrictive. Tube tolerances are very strict – (Production process is generally lengthy and involves many quality checks around key dimensional parameters such as straightness, roundness, wall thickness, surface, etc.).
  • Measurement – Pipes are generally measured by the inside diameter (ID), often called the “nominal” diameter, and a “schedule”, which refers to the wall thickness whereas for tubes, the outer diameter (OD) and wall thickness, which are exact measures in inches or millimeters roughly corresponds to the tube size. For tubes, the difference between the outside diameter and the wall thickness, multiplied by two, defines the inside diameter of the tube.
  • Telescoping Abilities – Tube can be telescoped. Pipe, on the other hand, does not have a flash weld. DOM (Drawn over Mandrel) Tube is the best material for telescoping because the inside flash weld has been removed.
  • Rigidity – Although copper and brass tubes can be shaped relatively easily, tubes are are typically rigid. Pipes, on the other hand, are invariably rigid and cannot be shaped without special equipment.
  • Applications – Pipes are used in all process fluids and services. Tubes are generally used in tracing lines, tubes for heat exchanger, fired heater and in instrument connection. Tubes are also used as primary load bearing member in steel structure for the civil application.
  • Metal Types – Tube is available in hot rolled steel and cold rolled steel. Pipe is typically black steel (hot rolled). Both items can be galvanized.
  • Size – Pipes are typically larger than tubes.
  • Strength – Tubes are stronger than pipes.

Chemical Composition Of Alloy Steel Heat Exchanger Tubes A335 P11

Compositions
Data
UNS Designa-tion
K11597
Carbon
0.05-0.60
Manganese
0.30-0.60
Phosphorus(max.)
0.025
Sulfur(max.)
0.025
Silicon
0.50-1.00
Nickel
Chromium
1.00-1.50
Molybdenum
0.44-0.65
Other Elements

Mechanical Composition of ASTM A335 P11

Properties
Data
Tensile strength, min, (MPa)
415 Mpa
Yield strength, min, (MPa)
205 Mpa
Elongation, min, (%), L/T
30/20

Difference Between Seamless and Welded Stainless Steel Pipe. How to Identify Whether a Pipe is Seamless or Welded?

Electric Resistance Welding (ERW) pipe is manufactured by rolling metal and then welding it longitudinally across its length. Seamless pipe is manufactured by extruding the metal to the desired length; therefore ERW pipe have a welded joint in its cross-section, while seamless pipe does not have any joint in its cross-section through-out its length.

In Seamless pipe, there are no welding or joints and is manufactured from solid round billets. The seamless pipe is finished to dimensional and wall thickness specifications in sizes from 1/8 inch to 26 inch OD. Applicable in for High-pressure applications such as Hydrocarbon Industries & Refineries, Oil & Gas Exploration & Drilling, Oil & Gas Transportation and Air and Hydraulic cylinders, Bearings, Boilers, Automobiles, etc.

ERW (Electric Resistance Welded) pipes are welded longitudinally, manufactured from Strip / Coil and can be manufactured upto 24” OD. ERW pipe cold formed from a ribbon of steel pulled through a series of rollers and formed into a tube which is fused through a electric charge. It is mainly used for low/ medium pressure applications such as transportation of water / oil. Common sizes for ERW Steel Pipe range from 2 3/8 inch OD to 24 inch OD in a variety of lengths to over 100 feet. Surface finishes are available in bare and coated formats and processing can be handled on site to customer specifications.

How to identify whether the pipe is seamless or welded?

If it is ASTM A53,

Type S means seamless.
Type F is furnace but welded,
Type E is Electrical resist welded.
That is how. It is the easiest way to identify whether pipe is Seamless or ERW.

Effects of Alloying Elements on Steel

•Manganese – strength and hardness; decreases ductility and weldability; effects hardenability of steel.
•Phosphorus – increases strength and hardness and decreases ductility and notch impact toughness of steel.
•Sulfur decreases ductility and notch impact toughness Weldability decreases. Found in the form of sulfide inclusions.
•Silicon – one of the principal deoxidizers used in steel making. In low-carbon steels, silicon is generally detrimental to surface quality.
•Copper – detrimental to hot-working steels; beneficial to corrosion resistance (Cu>0.20%).
•Nickel – ferrite strengthener; increases the hardenability and impact strength of steels.
•Molybdenum –  increases the hardenability; enhances the creep resistance of low-alloy steels.

What are the Steel Pipe Sizes?

Steel pipe sizes

Pipe size is quoted as a “Nominal Pipe Size” or NPS. The origin of the NPS numbers for smaller pipes (< NPS 12) is different to the origin for larger diameter pipes. However, all pipes of a specific NPS number have the same external or outer diameter (OD). The internal diameter will vary depending on the wall thickness of the metal. The reason for this is so that the same structural supports can be used for all piping of a specific NPS number regardless of the wall thickness.

Schedules

Steel pipe schedules are a way to describe the wall thickness of the pipe. This is a critical parameter as it is directly related to the strength of the pipe and the suitability for specific applications. A pipe schedule is a dimensionless number and is calculated based on the design formula for wall thickness, given the design pressure and allowable stress.

Examples of schedule numbers are as follows: 5, 5S, 10, 20, 30, 40, 50, 60, 80, 100, 120, 140, 160, STD, XS, and XXS—with the most common being schedules 40 and 80. As the schedule number increases, the wall thickness of the pipe increases. The schedule number of a pipe therefore defines the internal diameter, as the OD is fixed by the NPS number.

Over 10000 Tons in Stock for Alloy Steel Heat Exchanger Tubes!

ISMT & Jindal Steel Pipes Dealers, Original MTR's Provided with All Materials

As one of the biggest alloy steel heat exchanger tubes stockholder and supplier in India, Metallica carries inventory of over 10,000 tons in its warehouses in Mumbai, Maharashtra India. We sell our alloy steel pipe products throughout India, and to international clients. We can supply our alloy steel tube products not only in industry-standard lengths and diameters, but also in custom length and diameters.

How are Steel Pipes Certified?

Certification of Steel Pipes

Manufacturers issue a Material Test Report or Mill Test Report to validate that the product meets the chemical analysis and mechanical properties specification. The MTR will contain all relevant data to the product and will accompany the product through its lifecycle.

The following are typical parameters that may be recorded on an MTR:

  • Chemical composition including carbon content, alloys, and sulfur
  • Material size, weight, identification, and grade
  • Material heat number, which ties back to the processing batch
  • Mechanical properties like tensile strength, yield strength, and elongation

At Metallica, we will Provide you with Original MTR’s for all Alloy Steel Pipe Products! We will Send Our Test Certificates, along with Quotation