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Alloy 347 / 347H - SS Weldability

Back To Weldability Alloys

With the help of fusion and resistance technique Alloy 347 may be welded. Oxyacetylene welding is not recommended forAlloy 347 / 347H. When compulsory, use AWS E/ER347 filler metal.

Applications
  • Chemical Processing
  • Food Processing equipment and storage
  • Petroleum Refining fluid catalytic cracking units, polythionic acid service
  • Pharmaceutical Production
  • Waste Heat Recovery recuperators


Chemical Composition %

GradeC Si P S CrMn Ni FeCb (Nb+Ta)
347 0.08 max 0.75 max0.045 max 0.03 max 17.0 - 19.0 2.0 max 9.0 - 13.0 Remainder 10 x (C+N)-1.0
347H 0.04 - 0.10 0.75 max0.045 max 0.03 max 17.0 - 19.0 2.0 max 9.0 - 13.0 Remainder 8 x (C+N)-1.0
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