Porosity, bubbles, shrinkage cavity residues, non-metallic inclusions, segregation, white spots, cracks and various abnormal fracture defects in cold drawn seamless steel pipes can be found through macroscopic inspection.

The method of macro inspection is divided into two methods: acid leaching inspection and fracture inspection.

A brief introduction to the common macro defects displayed by the acid leaching method is as follows:Causes of segregation: During the pouring and solidification process, the selective crystallization and diffusion caused the aggregation of certain elements, resulting in uneven chemical composition.

According to the different positions of the distribution, it can be divided into ingot type, center and spot segregation.Macroscopic characteristics: On acid-leached samples, when the segregation is erodible substances or gas inclusions, it is dark in color, irregular in shape, slightly concave, flat at the bottom and many dense microporous spots.

If the anti-corrosion element is gathered, it will be slightly convex spots with light color, irregular shape and relatively smooth.Causes of porosity: During the solidification process of the steel, the low melting point material finally solidifies and shrinks and emits gas to produce voids, but fails to be welded during the hot working process.

According to its distribution, it can be divided into two types: center and general loose.Macroscopic features: On the lateral hot acid immersion surface, the pores are irregular polygons and narrow pits at the bottom.

Shashwat Stainless Inc. is the largest ERW Pipes Manufacturers in India.

One of our popular products in the Metal Market is Astm A312 Welded Pipes.

These ERW Pipes are available in a variety of sizes, forms, and dimensions, and can also be customized to meet the needs of our customers.

To meet the needs of different industrial sectors, we provide these items in the appropriate quantity and with all personalized choices.

Various Metals contribute to the high strength, excellent finish, and long life of these ERW Pipes.

We also deal with Round Bars and Pipes and Tubes, Duplex Steel & Super Duplex Steel, Buttweld Fittings, Forged Fittings, Stainless Steel and Flanges.

Western Steel Agency is a top Carbon Steel Flange Supplier, Manufacturer & Exporter in India.

Precision and high-quality raw materials were used in our manufacturing.

Carbon Steel Flanges are designed to be welded on-site at their ends to connect pipes and allow for path changes.

Our products are designed and developed to meet international quality standards.

ASME B16.5 Carbon Steel Flanges are a popular product in the Metal Market.

For more detailsContact us: +917922741096Mail us: [email protected] Source - Carbon Steel Flanges Manufacturer in India 

Nova Steel Corporation is one of the leading Pipes and Tubes Manufacturers in India.

We provide all types of Pipes and Tubes available in different grades and materials.

Pipes and Tubes are being manufactured by using the finest grade of raw materials and cutting-edge techniques as per customer’s requirements, and are accessible to our valuable customers in a different range of diameters, wall thicknesses, and sizes at quite affordable rates.

The main purpose of Pipe is to transport gases or fluids as a vessel, used in pipeline and piping systems.

The tube is used for structural purposes.

We are also a leading supplier of Large Diameter Pipe in India.