This alloy bar is stabilized by adding tantalum as well as chromium. It offers the higher creep as well as stress rupture properties, that may be used for exposure where intergranular as well as sensitization are of concern. Adding of columbium enables this alloy to have the best corrosion resistance. this Stainless Steel 347H Bar shows use in the fabrication of the equipment which are to be placed in the severe corrosive conditions. This grade of a bar can easily be annealed at the temperature ranging between 1010 °C to 1193°C.
S347H Round Bar Equivalent Grades :
| STANDARD | WERKSTOFF NR. | UNS |
| SS 347H | 1.4961 | S34709 |
Chemical Composition of Stainless Steel 347H Rods
| Grade | C | Mn | Si | P | S | Cr | Ni | Ti |
| 347H | 0.04 – 0.10 | 2.00 max. | 0.75 max. | 0.045 max. | 0.03 max. | 17.0 – 19.0 | 9.0-13.0 | 8 x C min. |
| (1.00 max.) |
Mechanical Properties of SS 347H Bars
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 8.0 g/cm3 | 1454 °C (2650 °F) | Psi – 75000 , MPa – 515 | Psi – 30000 , MPa – 205 | 35 % |
Destructive and Non-Destructive Testing
Mechanical examining like tensile, Elongation
and reduction of area.
Chemical examination
Radiographic Test
Pitting Corrosion Test
Positive material recognition
Eddy Current test
Buckling & Crushing test
SS 347H Rods Processing
Heat Resistance
Fabrication
Cold Working
Hot Working
Heat Treatment
Machining
Welding
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