347/347H Stainless Steel
WLD Steel is a leading manufacturer, supplier and exporter of the stainless steel 347/347H available in a number of different sizes and forms including pipe, tube, sheet, plate, bar, rod and formed shapes like angel, channel, beam and so on. Austenitic stainless steel 347 is a type of high carbon alloy with the addition of Niobium. 347H stainless steel is a higher carbon version of the 347 steel and the higher carbon allows for better high temperature creep properties. The addition of Nb making it has good intercrystalline corrosion resistance, especially to corrosive media such as acid, alkali and salt. Its corrosion resistance is similar to Austenitic stainless steel 321 with Ti addition, has been widely used in heat exchanger, superheater pipe, reheater pipe, steam pipe in the boiler of power generation, petroleum, chemical industry, synthetic fiber, food and paper industry.
What’s the 347/347H available forms and specifications at WLD Steel?
Sheet/Plate/Coil | Seamless Pipe/Tube | Welded Pipe/Tube | Round Bar | Formed Steel(Shaped) |
ASTM A240
ASTM A480 |
ASTM A789
ASTM A790 |
ASTM A928 | ASTM A276
ASTM A479 |
ASTM A276 |
347/347H Steel Equivalent Materials
Grades | C | Cr | Mn | Ni | P | S | Si | Cb/Ta |
347 | 0.08 max | 17.0-20.0 | 2.0 max | 9.0-13.0 | 0.04 | 0.30 | 0.75 | 0x C-1.0 |
347H | 0.04- 0.10 | 17.0-20.0 | 2.0 max | 9.0-13.0 | 0.03 | 0.30 | 0.75 | 10x C- 1.0 |
347/347H Chemical Composition
Grades | C | Cr | Mn | Ni | P | S | Si | Cb/Ta |
347 | 0.08 max | 17.0-20.0 | 2.0 max | 9.0-13.0 | 0.04 | 0.30 | 0.75 | 0x C-1.0 |
347H | 0.04- 0.10 | 17.0-20.0 | 2.0 max | 9.0-13.0 | 0.03 | 0.30 | 0.75 | 10x C- 1.0 |
347/347H Mechanical Properties
Grade | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation % | Hardness (Brinell) MAX |
347/347H | 515 | 205 | 40 | 201 |