Preston Pipes and Alloys is a respected producer, distributor, supplier, and exporter of Stainless Steel 321, 321H Welded (ERW, EFW) Pipes/Tubes in Mumbai, India. Stainless Steel 321 grade is a chromium-nickel steel alloy. SS 321 welded pipes are resistant to atmospheric corrosion, sterilizing solutions, many organic chemicals, as well as a wide range of inorganic chemicals. SS 321 Welded Pipes is a common austenitic 18/8 stainless steel alloy. The titanium content makes it a good option for high pressure environments of up to 900 degree C.

We are highly active in the production of 321-grade pipes and tubes of varied types across India. They include, SS 321 Welded pipes/ tubes, SS 321 ERW Pipes/Tubes, and SS 321 EFW pipes/tubes. SS 321H is a high carbon version of the 321 grade which offers a higher temperature strength. These Stainless Steel 321 Welded Pipes and Stainless Steel 321 Welded Tubes display good welding and forming properties. Owing to this functionality, these pipes and tubes are widely used in operating temperature environments more than 500 degrees C.

The Stainless Steel 321 EFW pipes are mainly used in manufacturing of pressure vessels, heat exchangers, pharmaceutical equipment and chemical processing equipment in Gujarat, India. We manufacture these 321 grades ERW pipes and tubes in many sizes, dimensions, thicknesses, and lengths in Mumbai, India. Besides the standard sizes, we also produce our pipes and tubes in customized sizes as per our valued client’s demand in Rajasthan, India.

Our SS Welded 321H Tubes are usually used in applications that require heating temperature in the range of 800 degrees F and 1650 degree F, for instance, aircraft collector rings, exhaust manifolds, expansion joints, and high-temperature chemical process equipment. The overall characteristics of these SS 321H Welded Pipes make them an extraordinary, relatively affordable option for a wide variety of applications. We are one of the best exporters of SS 321 ERW tubes in Mumbai, India. To ensure the high-quality of our pipes and tubes we perform different tests on our pipes and tubes.

The tests performed include flattening test, Positive Material Identity test, product analysis, transverse tension test, etching test, radiographic examination, grain size test, hardness test, bend test, flare test, stabilizing heat treatment, intergranular corrosion test and more. At Preston Pipes and alloys we use advanced technologies to manufacture our pipes and tubes, hence producing high quality products.