Stainless Steel 347/347H Pipes and Tubes

Stainless Steel 347/347H Seamless Pipes are made from a kind of general austenitic stainless steel. It is mostly used in high-temperature applications. The 347 stainless steel has great welding and forming qualities and tantalum and columbium addition gives it exceptional intergranular oxidation resistance.

347H alloy is the higher alloy carbon variant with enhanced oxidation resistance and known for high strength above 537 degrees C temperature. Grade 347 is similar to the 321 grades thus it has improved oxidation resistance in strong corrosion environments. Stainless steel 347 pipes and tubes are non-magnetic in the condition of annealing and can only be hardened by cold working.

Stainless Steel 347/347H Pipes & Tubes are widely used in aircraft engine components, heat exchangers, welded fabrications, petroleum refineries, power generation, pressure vessels, and some other high heat applications. It also offers mechanical properties, such as:

• Melting range
• Tensile strength
• Hardness
• Density
• Yield strength

Stainless Steel 347/347H Welded Pipes & Tubes are available in both welded and seamless form in NB and OD sizes. Stainless steel 347H pipes and tubes are also provided in random length as per customer’s demand.

The test reports including chemical reports, PMI test reports, third party inspection reports, destructive test report, mill test certificates, mechanical report, visual inspection reports, and NABL approved lab reports.

The products are packed in steel strips bundled, plastic bags, wooden boxes, or as per client’s requests. We also offer documents to our customers, such as heat treatment chart, material test certificate, etc.