347 Stainless Steel Pipe For Sale

The full identification of the Pipe should be continuously marked down its whole length, including:

1. Nominal Pipe Size (Nominal Bore)

2. Schedule (Wall Thickness)

3. Specification

4. Grade

5. Method of Manufacture (Seamless or Welded)

6. Heat Number

7. Manufacturer s Name or Symbol

TThese 347 Stainless Steel Pipes are austenitic stainless steel grade with tantalum and columbium added which contribute to giving them outstanding intergranular corrosion resistance. Our 347 SS Pipes have the following chemical composition in terms of maximum percentages: Carbon (0.08), Manganese (2), Phosphorous (0.045), Sulphur (0.03), Silicon (1), Chromium (19), Nickel (13), Molybdenum (0.50), Copper (0.50), and Cb+Ta (1.0).

Chemical Composition Of ASTM A312 TP 347 Stainless Steel Seamless Pipe

Element	347
Carbon*	0.08
Manganese	2.00
Phosphorus	0.045
Sulfur	0.03
Silicon	0.75
Chromium	17.00-19.00
Nickel	9.00-13.00
Columbium +Tantalum**	10xC min to 1.00 max

The 347 stainless steel is austenitic chromium nickel stainless steel that is stabilized with columbium and tantalum. The major difference between the 347 and the 347H is the carbon content. So there is not much difference in the cost of the material. If there is cost difference, it is due to the lower use cases of the 347h that the manufacturers don’t have to produce much of the material in the same volume as the 347 material.

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