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Ni-Cu 405

UNS #N04405

Ni-Cu 405 is a nonhardenable stainless steel with acceptable resistance to sulfide stress cracking at Rockwell C 22 maximum hardness per NACE MR-01-75 and corrosion resistance is similar to 410. It has been used in the as-welded condition for welded applications that require finish machining.

Type Analysis

  • Carbon (Maximum) 0.3
  • Silicon (Maximum) 0.5
  • Nickel (Nominal) 63
  • Manganese (Maximum) 2
  • Sulfur (Maximum) 0.025-0.050
  • Iron (Nominal) 2.5
  • Copper (Nominal) 28-34

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