Alloy Steel Boiler Tube/Superheater Tube/Reheater Tube, Dealers, Suppliers, Manufacturers, Stockist – ASTM A213/SA213 T2, T9, T11, T12, T22,  Chrome Moly Tubes

• Alloy Steel boiler steel tubes are most widely used for manufacturing water cooled wall panel, economizer, reheater, superheater and steam pipeline of boilers in the industry of petrochemical and power. Alloy steel boiler pipes and tubes are often used in severe environments and are required to have high strength and superior corrosion resistance. The manufacturing process for seamless alloy steel boiler steel tubes does not include any welding, due to which they are considered to be stronger and more reliable. Alloy steel boiler tubes are suitable for withstanding pressure better than other types of pipes.
• We specialize in manufacturing alloy steel boiler tubes in straight lengths of up to 30 meters, or as U-bends in a size range of 3/16” (4.76 mm) to 4” (101.6 mm) in wall thickness upto 15mm. We can produce seamless and welded alloy steel boiler tubes in a wide range of grades and sizes.
• We are manufacturing seamless and welded alloy steel boiler tubes by following a stringent quality control program and standards which assure good surface and close dimensional tolerances. We are a global industry leading provider of carbon steel boiler tube, alloy steel tube and stainless steel boiler tube solutions and have obtained ASME Quality and ISO 9001:2015 Certifications. In addition to being a world class tubing manufacturer, we are an authorized dealer of ISMT and Jindal for stock and supply of carbon steel and alloy steel tubes.
• All our alloy steel boiler 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 boiler tubes at the lowest prices.
• We specialize in providing deliveries to your factory directly from our warehouse or our principal suppliers. For immediate deliveries of tubes, our inventory is stocked in around 5 warehouses in Kalamboli and 3 warehouses in Mumbai. With a team of over 50 people dedicated for deliveries and response to our esteemed customers, we can offer the best service. At the same time, we are also committed to offer best quality products and most competitive prices to our customers.

Alloy Steel Boiler Tube Grades

Chemical Composition of Alloy Steel Boiler Tubes

Mechanical Properties of Alloy Steel Boiler Tubes

Manufacturing Process for Alloy Steel Boiler Tubes

All seamless boiler tubes are manufactured by cold drawing and cold rolling process followed by annealing, straightening and testing. The tolerance of tubes produced by us in line with ASME/ASTM & EN Standards. We promise each boiler tube that we deliver to our client will be the best in quality. All shipments include a full Test Certificate showing all required test results and verifying compliance with the order requirements.

Boiler tubes are used to produce hydraulic and pneumatic lines, automotive industry, heat exchangers and air coolers. The boiler tubes are manufactured by piercing process followed by pilgering/drawing. Our facilities are equipped with all the machines required to cover the process with a high quality results (piercing, pilger machines, draw benches, straightening machine, degreasing facility and solution annealing furnace). Boiler is a closed chamber where steam is generated from water by application of heat. It mainly consists of shell/drum, network of tubes, pipes, mountings and fittings water enters in a boiler from one end and steam comes out from the other end. Raw materials used for manufacturing of boiler are plates, tubes, pipes, pipe fittings, valves etc. Different materials like carbon steel, creep resistance alloy steels, stainless steels etc. are used for this purpose. Manufacturing of boiler involves a variety of skill and unique manufacturing methods. It requires facilities for metal removing, forming, casting, joining of metal by welding, heat treatment, different destructive and non-destructive testing.

1. Cold Rolling – Tube rolling uses compression to reduce the size of seamless boiler tubes. It utilizes one or two sets of rolls with constant cross-section grooves on the circumference of the tube. The rolls are driven by rack and pinion gears of different radii along profiled cams, completing multiple 360º rotations around the tube. Tube rolling is a very precise method of reducing very thin walled and/or smaller diameter tubes, and is often used as the final cold working step. By rolling, we’re able to achieve exceptional control over dimensional tolerances and surface finish while also minimizing material loss and improving the metal’s microstructure.
2. Cold Drawing – Cold drawing reduces the diameter by pulling the tube through a die that is smaller than the tube. In order to fit the tube into the die, one end is swaged thereby reducing the diameter of the leading end before drawing. Next, the narrowed end is passed through the die and clamped to a drawing trolley which pulls the tube through the die.
3. Annealing – Annealing is used to soften the metal before further cold working or fabrication processes, and improves the overall metallurgical microstructure of the tube. During tube reduction or cold drawing, it can become hard and somewhat brittle. To be able to draw the tube again, stresses formed during cold working need to be removed to return the material to its normal state. During annealing the tube is heated to a controlled temperature and soak time. Through this process the tube remains in shape, but the grains in the structure of the tube reform into a regular unstressed pattern. The resulting annealed tube is softer and suitable for redrawing
4. Straightening – Drawing and annealing generally results in some degree of bowing, producing a slight bend in the tubing. In order to make the tubes straight, we use multiple roll mechanical straighteners to implement this procedure, Straightening can introduce slight changes to the size and mechanical properties of the tubing, so these aspects are very carefully controlled during the process.
5. Inspection and Tests – At each manufacturing stage, boiler tubes are submitted to a visual and dimensional inspection. They are also submitted to Eddy current test (straight tubes) or, if requested, to other non destructive tests in accordance with the requirements of the standards. Mechanical tests, along with flaring and flattening tests, are performed on samples of each order as per the reference standards. We inspect all lots of boiler tubing before shipment to ensure that every aspect of the customer’s order has been met. Our in-house inspection and tests capabilities include:

• • Chemical Composition Test
  • Visual inspection
  • Dimensional inspection
  • Surface roughness testing
  • Eddy Current testing
  • Hydrostatic pressure testing
  • Destructive mechanical testing:
    • Yield Strength
    • Tensile Strength
    • Elongation
    • Hardness testing
    • Bending, flattening, and flaring

Alloy Steel Boiler Tube Specifications, Stock & Production Range

• Email Us on info@metallicametals.com for best prices on various types of Welded Low Alloy Steel Tube, Ferritic Alloy Steel Square hollow section, Ferritic Alloy Steel Square hollow section, IBR Alloy Steel Exhaust Tube, IBR Alloy Steel Exhaust Tube, High Temperature Low Alloy Steel ERW Tubes, High Temperature Low Alloy Steel ERW Tubes, Chrome Alloy Steel Schedule 80 Tube, Chrome Alloy Steel Schedule 80 Tube, Cast Alloy Steel Schedule 40 Tube, Cast Alloy Steel Schedule 40 Tube, Anti-Corrosion 30 Inch Alloy Seamless Steel Tube, Anti-Corrosion 30 Inch Alloy Seamless Steel Tube, Alloy Steel Exhaust Tube, Alloy Steel Exhaust Tube, Alloy Steel ERW Tube, Alloy Steel ERW Tube, ASTM A213 Chrome Moly Tube, ASTM A213 Chrome Moly Tube, Alloy Steel Boiler Tubes, Alloy Steel Boiler Tubes, Alloy Steel Square Tube, Alloy Steel Square Tube.
• Marking: Heat Number, Size, Grade, Manufacturing Spec., Commodity Name or as per customer request