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AVAILABILITY Type 347 is available in Sheet, Plates, Bars (Flat, Hex, Round, Square), Forging Stock, Tube , Welding Wire. 347 Foil (Shim) is available in various thicknesses. View stock list for further information. Foil Stock List, Sheet Stock List., Plate Stock List.
SPECIFICATIONS Type 347 Stainless Steel is covered by the following specifications: UNS S34700 Type 347H Stainless Steel is available in Sheet, Strip and Plate
Similar Specifications AMS 5556 Seamless or Welded Tubing AMS 5558 and 5575 Welded Tubing : MIL-T-6737 (5575) AMS 5571 Seamless Tubing : MIL-T-8606 UNS : S30347 WS 1.5446 MIL-S-6721
RESISTANCE TO OXIDATION and CORROSION Alloy 347 is a chromium nickel stainless steel which has been modified by the addition of columbium and tantalum. The main advantage of this is an excellent resistance to intergranular corrosion which is common to other austenitic stainless steels following exposure to temperatures of 800° to 1500°F. Type 347 has about the same general corrosion resistance as Type 302
APPLICATIONS Type 347 is generally used where corrosive conditions are severe, such as aircraft exhaust stacks, manifolds and ring collectors. Type 347 is also used for heavy welded assemblies which cannot be annealed after welding or where the operating conditions cause exposure within the temperature range between 800° to 1500°F
TYPICAL MECHANICAL PROPERTIES (Typical Room Temperature Properties)
Disclaimer Every effort is made to ensure that technical specifications are accurate. However, technical specifications included herein should be used as a guideline only. All specifications are subject to change without notice.
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