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Manufactur standard Corner Tube Boiler - Boiler Tube A179 A192 – Sinoworld

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Manufactur standard Corner Tube Boiler - Boiler Tube A179 A192 – Sinoworld Detail:

Boiler tubes

Standard: ASTM A179——–Standard of American Society for Testing & Materials

Application

It  is used for tubed heat exchanger,condenser and similar heat conveying equipments
Main Steel Tube Grades: A179
Standard :ASTM A192——-Standard of American Society for Testing & Materials

Boiler Tubes 1

It is used for high pressure min.Wall thickness seamless carbon steel Boiler and Superheater tube
Main Steel Tube Grades: A192
Boiler tubes are seamless tubes and are made of either carbon steel or alloy steel. They are widely used in steam boilers, for power generation, in fossil fuel plants, industrial processing plants, electric power plants, etc. Boiler tubes can either be medium-pressure boiler pipe or high-pressure boiler pipe.
Boiler tubes are often manufactured in seamless procedures. Here’s a detailed account of how they are made:
How Are Boiler Tubes Made?
Both medium-pressure and high-pressure boiler tubes undergo the same initial process of manufacturing, which includes fine drawing, surface bright, hot rolling, cold drawn and heat expansion. However, the following steps are undertaken to make high-pressure pipes stronger and more resistant.

Heat treatment includes heating and cooling of the high-pressure boiler pipes which increases toughness, hardness and wear resistance. The different steps that come under heat treatment include quenching, tempering and annealing.

Quenching is done to increase the hardness of the high-pressure boiler tube. The pipe is heated evenly to an appropriate temperature and then quickly immersed into water or oil for instant cooling. This is followed by cooling in air or in the freezing zone.

Tempering is used to remove brittleness from the pipe. Quenching can cause the pipe to become tapped or broken.

Annealing can remove the internal stress in the pipe. In this process, the seamless tube is heated to the critical temperature and then left for slow cooling in ash or lime.

Rust Removal of the Boiler Tube

There are several methods for removing rust from the boiler tube, the simplest being cleaning using a solvent and emulsion. However, this can remove only dust, oil, etc. but will not rid the pipe completely off organic remnants.

The second method is rust removal using manual or power tools. Tool cleaning can get rid of oxide coatings, welding slag and rust.

The most common method is through chemical and electrolytic methods, also known as acid cleaning.

Spray rust removal is the most ideal method for cleaning of the boiler tube as it can remove dirt, oxide and rust to a greater level. Furthermore, it can increase the roughness of the pipe.

How to Choose Good Quality Boiler Tubes?

While choosing boiler tubes, look for the following to pick out the right and good quality tubes:

1. Look at the cross-section of the tube. A good quality seamless tube will have a smooth cross-section and will be devoid of bumps and irregularities.

2. Check the density of the pipe to understand the percentage of impurities in the pipe. If the pipe shows low density, steer clear!

3. Make sure you check the trademark. Reputed manufacturers always put their trademark on their seamless tubes.

4. Check the surface of the boiler tube. A good quality boiler tube will have a smooth surface. If you find the surface to be rough and uneven, you can be sure that the quality is not up to the mark.


Product detail pictures:

Manufactur standard Corner Tube Boiler - Boiler Tube A179 A192 – Sinoworld detail pictures

Manufactur standard Corner Tube Boiler - Boiler Tube A179 A192 – Sinoworld detail pictures

Manufactur standard Corner Tube Boiler - Boiler Tube A179 A192 – Sinoworld detail pictures


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