Alloy steel boiler tubes

Alloy Steel Boiler Tubes Suppliers

Alloy steel boiler tubes suppliers in India, Buy Alloy steel boiler tubes, Power Generation Boiler tubes, boiler and superheater tubing, boilers and heat exchangers, Alloy-Steel Boiler and Superheater Tubes, Seamless Carbon Steel Boiler Tube ASTM A192, steel boiler tube, Austenitic Alloy-Steel Boiler, ASTM A213 T22, ASME SA213 T22 Boiler Tubes, Ferritic and Austenitic Alloy-Steel Boiler, Water boiler tubes at best price

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Alloy steel boiler tubes Specification

Alloy steel boiler tubes suppliers & distributor

Alloy steel boiler tubes suppliers & distributor

Boiler tube – for pressure equipment, used at higher temperatures

Standards and steel grades,
Tube sizes acc. to EN, DIN, BS, NF A, UNI, STN, ČSN and PN-H standards,
Tube sizes acc. to GOST and TU standards,
Tube sizes acc. to ANSI standards,
Tube sizes acc. to ASME standards,
Precision tube sizes

Boiler tube is made from heat resisting carbon and low alloyed steels which can withstand the load at high pressure and temperature. Boiler tube is used for parts of energy type equipment such as boilers, steam superheaters, steam pipelines, etc. The tubes are supplied as hot rolled or cold drawn. Specifications, dimensions and the steel grades are shown in a separate overview.

Individual Straight Boiler Tubes

Rajendra Piping maintains one of the largest and most extensive tube inventories in India. Included are a wide array of sizes and wall thicknesses, in both seamless and welded tubes, commonly used in steam generators. We also have vast experience solving a variety of problems on all types of steam generators in many different industries.

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.

Tube Failures in High Pressure Boilers

Classification of tube failures

Tube failures are classified as in-service failures in boilers. These failures can be grouped under six major causes:

  1. Stress rupture
  2. Fatigue
  3. Water side corrosion
  4. Erosion
  5. Fire side corrosion (Called also as High temperature Corrosion)
  6. Lack of quality control.

These lead to twenty-two primary causes that can cause a tube failure in a high pressure boiler:

  • Short term overheating failure
  • Long term overheating failure (called also as creep failures)
  • Dissimilar metal weld failure
  • Fatigue caused by vibration
  • Thermal fatigue due to temperature fluctuation
  • Corrosion fatigue failures
  • Caustic corrosion inside the tube
  • Hydrogen damage in water wall internal surface
  • Tube internal pitting
  • Fly ash erosion
  • Falling slag erosion
  • Soot blower erosion
  • Coal particle erosion
  • Low temperature flue gas corrosion
  • Fire side waterwall corrosion
  • Coal ash corrosion
  • Oil ash corrosion
  • Damage during maintenance cleaning
  • Chemical excursion damage
  • Material defect and weld defects

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.

Marking of the tubes and tube bundles

The tubes with the outside diameter up to 51 mm are marked with a label that is attached to the bundle. Larger tubes are marked at least at a one end of a tube by the necessary data.

Surface protection of the boiler tubes

While ordering, it is necessary to agree upon the way and means of temporary protecting the surface of the tubes during transportation and storing. The tubes may be supplied without temporary preservation of the surface, or with the preservation of the surface with an agreed upon preservative.

Packaging of the boiler tubes

The tubes are supplied in packages with a circular or hexagonal diameter with weight of 300 to 3500 kilograms. The tubes are bound with a steel band. It is possible to arrange wrapping to plastic sheet, burlap or to wooden crates.

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
I
TC1
with ultrasound
III
TC2

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.

The TR1 quality group is usually tested with nonspecified testing. The TR2 quality group is always tested with specified testing. The main difference in the mandatory tests between the TR1 and the TR2 is the fact, that in the TR2 quality the test is done using blow bending test at the 0°C temperature and as an optional test in this quality it is possible to agree on nondestructive test as a proof of longitudinal defects.

Certified test reports

Certified test reports are issued according to the appropriate TDC standards: 
EN 10204 – 3.1 or 3.2
STN, ČSN 42 0251
ASTM A450, A530
DIN 50049 3.1.B

Types of Alloy steel boiler tubes

Alloy steel boiler tubes Suppliers in India

EN 10216-2 Boiler Tubes

Alloy steel boiler tubes Suppliers in India

P195GH Boiler Tubes

Alloy steel boiler tubes Suppliers in India

P235GH Boiler Tubes

 

Alloy steel boiler tubes Suppliers in India

P265GH Boiler Tubes

Alloy steel boiler tubes Suppliers in India

16Mo3 Boiler Tubes

Alloy steel boiler tubes Suppliers in India

14MoV6-2 Boiler Tubes

 

Alloy steel boiler tubes Suppliers in India

14MoV6-3 Boiler Tubes

Alloy steel boiler tubes Suppliers in India

10CrMo5-5 Boiler Tubes

Alloy steel boiler tubes Suppliers in India

13CrMo4-5 Boiler Tubes

 

Alloy steel boiler tubes Suppliers in India

10CrMo9-10 Boiler Tubes

Alloy steel boiler tubes Suppliers in India

11CrMo9-10 Boiler Tubes

Alloy steel boiler tubes Suppliers in India

25CrMo4 Boiler Tubes

 

Alloy steel boiler tubes Suppliers in India

T2 Boiler Tubes

Alloy steel boiler tubes Suppliers in India

T24 Boiler Tubes

Alloy steel boiler tubes Suppliers in India

T5 Boiler Tubes

 

Alloy steel boiler tubes Suppliers in India

T91 Boiler Tubes

Alloy steel boiler tubes Suppliers in India

DIN 17175 Boiler Tubes

Alloy steel boiler tubes Suppliers in India

BS 3059-1 Boiler Tubes

 

Alloy steel boiler tubes Suppliers in India

BS 3059-2 Boiler Tubes

Alloy steel boiler tubes Suppliers in India

BS 3602-1 Boiler Tubes

Alloy steel boiler tubes Suppliers in India

BS 3604-1 Boiler Tubes

 

Alloy steel boiler tubes Suppliers in India

NFA 49-211 Boiler Tubes

Alloy steel boiler tubes Suppliers in India

NF A 49-213 Boiler Tubes

Alloy steel boiler tubes Suppliers in India

UNI 5462 Boiler Tubes

 

Alloy steel boiler tubes Suppliers in India

GOST 8731 Boiler Tubes

Alloy steel boiler tubes Suppliers in India

GOST 4543 Boiler Tubes

Alloy steel boiler tubes Suppliers in India

GOST 20072 Boiler Tubes

 

Alloy steel boiler tubes Suppliers in India

PN-H 74252 Boiler Tubes

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 and its chemical composition and mechanical properties are shown in a separate overview.

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Other Steel Pipe/ Tube/ Tubing we stock

Alloy steel boiler tubes size & stock range

Pipe/ Tube Type NB Sizes Sch 5 Sch 10 Sch 40 Sch 80 Sch 160
Alloy steel boiler tubes 1/2
Available
Available
Available
Available
 
Alloy steel boiler tubes 3/4
Available
Available
Available
Available
 
Alloy steel boiler tubes 1
Available
Available
Available
Available
 
Alloy steel boiler tubes 1.25
Available
Available
Available
Available
Available
Alloy steel boiler tubes 1.5
Available
Available
Available
Available
Available
Alloy steel boiler tubes 2
Available
Available
Available
Available
Available
Alloy steel boiler tubes 2.5
Available
Available
Available
Available
Available
Alloy steel boiler tubes 3
Available
Available
Available
Available
Available
Alloy steel boiler tubes 3.5
Available
Available
Available
Available
Available
Alloy steel boiler tubes 4
Available
Available
Available
Available
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Alloy steel boiler tubes 5
Available
Available
Available
Available
Available
Alloy steel boiler tubes 6
Available
Available
Available
Available
Available
Alloy steel boiler tubes 8
Available
Available
Available
Available
Available
Alloy steel boiler tubes 10
Available
Available
Available
Available
Available
Alloy steel boiler tubes 12
Available
Available
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Available
Available
Alloy steel boiler tubes 14
Available
Available
Available
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Available
Alloy steel boiler tubes 16
Available
Available
Available
Available
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Alloy steel boiler tubes 18
Available
Available
Available
Available
Available
Alloy steel boiler tubes 20
Available
Available
Available
Available
Available
Alloy steel boiler tubes 22
Available
Available
Available
Available
 
Alloy steel boiler tubes 24
Available
Available
Available
Available
 

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We are having our sub dealers of above brands with adequate stock of Alloy steel boiler tubes & Tubular in India, Nigeria, South Africa, Australia, Tanzania, Iran, Iraq, Israel, Turkey, Spain, Indonesia, Saudi Arabia, Oman, Qatar, Kuwait for quick delivery of Alloy steel boiler tubes with mill certificate & all required documents.

Origin: Indian Origin, Japanese Origin, Korean Origin, European Origin, US Origin, Ukraine Origin, Russian Origin

We export to:

Project Reference List- Supplied Alloy steel boiler tubes

Project Area: Saudi Arabia, Europe, Asia Pacific, Africa, Mid-east, America, Iran, UAE, Switzerland, UK, India, Chile, Venezuela, Vietnam, Sudan, Algeria, China etc.
Our Clients: Shell Oil, CNPC, SINOPEC, SASOL, BROOKFIELD MULTIPLEX, SWCC, VISION CONSTRUCTION GROUP etc.
Project Field: Oil & Gas, Construction, Industrial Usage, Environmental Equipment, Marine & Offshore

Supplied Alloy steel boiler tubes worldwide

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