What is Bend?
Bend is also called hot induction bend. Actually it is a type of elbow with more than 1.5D radius such as 2D, 2.5D, 3D, 4D, 5D etc. The degrees of bends are most commonly available in 30º, 45º, and 90º, certainly other degrees are available as well.
Bend is the same as the elbow which commonly can be made of carbon steel, alloy steel and stainless steel by hot induction process. High frequency heating has fast heating speed and heating uniformity features that will effectively control the temperature of pipes to avoid situations too hot or too cold to guarantee the bending quality.
High frequency hot induction bend is a very common piping material. It has a wide application range that refers to petroleum, chemical industry, power, aviation, ship building, paper production and so on. High frequency hot induction bend is particularly important in some special cases because it has many kinds of radius, uniform wall thickness and accurate bending angle features.
Applications
Technical Specifications
The following are the specifications about bend 3D, 4D, and 5D.
The types of pipe bend according to standards
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Classify pipe cross according to process
High frequency hot induction bend
High frequency hot induction is the most common process to manufacture pipe bend. This process mainly includes choosing raw materials, heating, bending, cooling and amending etc. It is a highly effective way to produce pipe bends and the bends have uniform wall thickness and exact angle.
Butt weld steel pipe bend and threaded pipe bend
pipe bend Features
Pipe bend as a widely used and functional pipe fitting, it has several special features, as following:
Quality Assurance
1) Raw materials assurance: All of the raw materials are from reliable manufacturers and suppliers. And we will do Chemical composition analysis and Mechanical property testing before the raw materials enter to our warehousing.
2) Production assurance: We have many advanced modern production equipments such as shaping press machine, heat treatment furnace, sand-blasting machine, etc, and more than 40 years of production experience.
3) Heat treatment: It is necessary for pipe bend to proceed with the heat treatment, which can ensure the quality, making the density more evenly and reducing the risk of cracks for the pipe bends.
4) NDT full or sample inspection and Mechanical testing for the final products to ensure the pipe bends without any defects.
5) Before delivery, we will also check the bends’ size, diameter, wall thickness, length, coating, etc.
6) Packing: The package of bends are strong and suitable for sea transport.