Boiler Tubes Manufacturer In India, Boiler Tubes Suppliers

High Quality Boiler Tubes, Check Boiler Tubes Latest Price list

Looking For Boiler Tubes with Customized Length ? Our Standard Size are Usually 3m and 6m in length, but we also provide additional Cutting Service

Boiler Tubes

Boiler Tubes

In Boiler tubes, when water is evaporated to steam are called Steam Generating Tubes. These Tubes also form the Walls of the Boiler and are hence called Water Walls or Water Wall Panels. These Tubes have very complicated shapes to allow Inspection openings and burner throats and fabrication require intricate binding on CNC programmable bending Machines and checking on 3D layouts.

DM Special Steel Ltd & Tubes can supply these tubes with ends swaged/reduced to smaller diameters or expanded to higher diameters. Ends can be supplied fully ground and annealed to facilitate Expansion or bevelled to weld to Header Stubs. The Water Wall Panels are High frequency tube to tube welded and then bent on Panel Bending Machines or the Gas tight panel can be made by welding Fins to tubes using Low Temperature Automatic Welding Machines using CO2 and Filler wires

All power devices operate at high efficiencies required quality steel tubes, to guarantee their safe and long term operation. These Tubes are called as Boiler Tubes.Boiler Tubes are specially manufactured to withstand high pressure and temperature. Boiler tubes are used in energy type equipments like steam pipeline, boilers, super heaters etc.

Boiler tubing is used in these industries:

  • Steam Boilers
  • Fossil Fuel Plants
  • Heat Exchangers
  • Electric Power Plants
  • Cogeneration Facilities
  • Air Preheater Unit
  • Waste Heat Plants
  • Power Generation
  • Economiser etc

Boiler tube dimensions and tolerances

The tube dimensions range from 10.2 mm to 139.7 mm, from 26.9 mm diameter and the wall thickness from 2.6 mm and they supplied as hot rolled. The smaller diameter tubes and the thick wall tubes of larger diameters are supplied as cold drawn and subsequently they are heat treated. The tubes delivery in this condition happens only if there is an agreement upfront at the time of ordering the tubes. Based on an agreement it is possible to deliver boiler tubes with dimensions and tolerances according to the dimensional specifications for precision tubes. The tube dimensions meet the requirements of the following EN 10216-2, DIN 2448, BS 3059-1, BS 3059-2, BS 3602-1, BS 3604-1, NF A 49-211, NF A 49-213, UNI 4991, STN 42 5715, STN 42 5716, ČSN 425715, ČSN 42 5716, GOST 8732, PN-H 74252, ANSI B36.10, ASME B36.10. The detailed dimensional overview is shown in the tables according to EN, DIN, BS, NF A, UNI, STN, ČSN and PN-H standards, GOST standards, TU standards, ANSI standards, ASME standards and standards for precision tubes.

Steels for boiler tube

The boiler tubes are made from the following steels according to EN 10216-2: P195GH, P235GH, P265GH, 16Mo3, 14MoV6-2, 14MoV6-3, 10CrMo5-5, 13CrMo4-5, 10CrMo9-10, 11CrMo9-10, 25CrMo4, T2, T24, T5,T91; ASTM A 106: Grade A, Grade B, Grade C. Additional steel grades according to DIN 17175, BS 3059-1, BS 3059-2, BS 3602-1, BS 3604-1, NFA 49-211, NF A 49-213, UNI 5462, GOST 8731, GOST 4543, GOST 20072 and PN-H 74252.

General Specifications & Tolerances

Extracts from BS: 3059-1987 1990







Drift Expansion Test

increase in D as %

Chemical Composition
d/D as Ratio
C %
Si %
Mn %
P & S %
Outside Diameter

BS: 3059

Part 1/1987




ERW +/- 0.75% with a minimum of +/- 0.30 mm CEW +/- 0.5% with a minimum of +/- 10mm

U.T.I 3.2mm +/- 10% and over 3.2mm +/- 7.5%

BS: 3059

Part 2/1990



ERW same as Part 1 for ERW 2 Class 2 CEW same as Part 1 of 1987
+/- 10% (excluding) welding area Same as Part 1 of 1987

(Note: Rm: Tensile Strength A: Elongation d: Inside diameter Re: Yield stress D: Outside diameter t: Wall thickness )

Length of the boiler tube

Diameter (OD) [mm]
Wall (WT) [mm]
Length (L) [m]
OD < 60,3
5 – 6
OD => 60,3
WT < 7,1
5 – 6 or 10 – 14 after an agreement 22,4
WT => 7,1
5 – 6


Types of the length of supplied tubes: (a) random, (b) fixed ± 500 m, (c) exact + 15 / – 0 mm.

Boiler tube straightness

Straightness deviation for the whole length of a tube can not exceed value of 0.0015 x L. In conversion to the 1 meter length it can not exceed 3 mm.

Ends of the boiler tubes

The ends of the tubes are vertical to the longitudinal axis and are without burrs.

Condition of the tubes surface

The tubes condition corresponds to the requirements of appropriate standards, heat treatment to the way of tube manufacturing and chemical composition of steel.

Testing of boiler tubes

The boiler tubes are tested only with a specified testing.

Test comparison according to DIN 17175 and EN 10216 – 2:

DIN – grade level I
EN – testing class
without ultrasound
with ultrasound


Unalloyed steel– grade I or III, class TC1 or TC2;

Alloyed steel– level III, class TC2

A precise list of mandatory and optional tests is shown in standards.

Product reliability and performance has made DM Special Steel Ltd & Tubes a leading exporter and distributor of boiler tubes in india and international markets such as MalaysiaNigeria Egypt, South AfricaTanzaniaKenyaAlgeria, Sudan, UgandaMorocco, GhanaMozambique,  Angola Gabon,Russia, GermanyTurkey France, United Kingdom,  Italy, Spain, Netherlands,  IranIraqSaudi ArabiaUnited Arab EmiratesIsrael,  Jordan, OmanKuwait, Qatar, Bahrain, Bangladesh, ChinaIndonesiaJapan, South Korea, PakistanPhilippinesSingaporeSri Lanka, Thailand, Vietnam, Brazil, Colombia, Argentina, United StatesMexico, Canada & Australia.

Our boiler tubes are supplied to all major Indian cities including across all major cities and industrial areas in India such as Mumbai, Delhi, Bangalore, Hyderabad, Ahmedabad, Chennai, Kolkata, Surat, Pune, Nagpur, Indore, Thane, Bhopal, Visakhapatnam, Vadodra, Nashik, Faridabad, Rajkot, Aurangabad, Ranchi, Coimbatore, Raipur, Mysore, Bhubaneswar, Salem, Bhilai, Bhiwandi, Bikaner, Mangalore, Kochi (Cochin), Bhavnagar, Tirupur, Ankleshwar, Assam, Siliguri, Jamshedpur, Warangal, Nellore, Agartala and Thoothukudi.

Our high quality steel pipes, good customer service, and in house pipes and tubes processing capabilities have made us one of the emerging suppliers for stainless steel electropolished pipes, stainless steel electropolsihed tubes and stainless steel electropolished tubing in Middle East such as including Bahrain, Cyprus, Egypt, Iran, Iraq, Israel, Jordan, Kuwait, Lebanon, Oman, Palestine, Qatar, Saudi Arabia, Syria, Turkey, United Arab Emirates and Yemen.


Types Of Boiler tubes

ASTM A178 Boiler Tube
ASTM A179 Boiler Tube
ASTM A209 Seamless Alloy Tube
ASTM A210 Boiler Tube
ASTM A213 Stainless Steel Boiler Tube
ASTM A250 Alloy Boiler Tube


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