Stainless Steel 347/347H Welded Pipes

Stainless steel 347 is well balanced, austenitic chromium steel that is having columbium in it that is taking into consideration carbide precipitation end and intergranular corrosion. Alloy SS 347 is balanced very well by adding tantalum and chromium and it thus offered creep and stress rupture properties than other alloys. This thus later can be used for exposure wherein both sensitization and IGC is concerns. Expansion of columbium is permitting alloy SS 347 to have very good corrosion resistance. Stainless steel alloy 347 & 347H is the greater carbon version of SS 347 that is displaying very well improvised creep properties and high temperature.Alloy 347 is displaying excellent corrosion resistant. It was developed for

use at the chromium carbide precipitation temperature ranging of 427-816 deg C wherein the unbalanced alloy is subjected to IG attacks. In the temperature scope, overall resistance to corrosion is good than others. SS 347 is performing very well at the strongly oxidizing atmospheres to temperature 816 Deg C. The alloy is used as the part of nitric solutions at greater temperatures.

The applications where these Stainless steel 347/347H Welded Pipes are found extensively used is-
• Petroleum units
• Pharmaceuticals industry
• Waste heat recovery recuperators
• Chemical processing
• Food processing tools and storages
• Paper and pulp
• Gas processing

SS 347/347H Welded Pipes are having few common properties in it that are making it a good selection and it is like-
• Hardiness
• Rugged construction
• Long serviceability
• Anti-corrosiveness

These welded pipes are sent for the testing to make sure that no poor quality of pipes is delivered. The tests done are IGC/PMI test, toughness tests, etc.