347 stainless steel pipe is an austenitic stainless steel containing stabilizing elements. This alloy is easy to weld. Annealing after welding may not be necessary unless stress relief is required. 347 stainless steel pipe has excellent anti-oxidation and corrosion resistance. 347 stainless steel works best at temperatures up to 1600 °F. The addition of niobium and tantalum to 347 stainless steel pipe provides some desirable properties such as:

Prevent harmful carbide precipitation in the heat affected zone (HAZ) of the welding area.

Has significant resistance to inter-granular corrosion. 

Reduce embitterment of heat affected zone in welding area.

Standard: ASTM A 312/A358 ASMES A312

Function

347H Stainless Steel Pipe yield strength is min. 205 MPa and tensile strength is min. 515 MPa. This pipe is fabricated in various thicknesses ranging from 0.4mm to 30mm and has sizes ranging from 1/8" to 48". It is formed in welded and seamless design and comes in round, rectangular and square shape.

Type 347 grade of stainless steel pipes are supplied to various sectors and has huge industrial applications like power generation, heat exchangers, condensers, chemical industry, pharmaceutical, petrochemicals, water supply system, oil and gas refineries, pulp and paper industry, food processing, and many more.

347 stainless steel pipe are usually used in the petroleum refining industries. Alloy 347 and 347H stainless steel Pipe are used to make radiant super heaters, boiler tubes, high pressure steam pipe, and general refinery piping. They are also used for heavy-duty exhaust systems and manifolds.