Super Duplex F53 Scrap / Duplex F51 Scrap / SDSS F53 Scrap

Product Description

• Density: 7.8 g/cm³

• Pitting Resistance Equivalent Number (PREN):

  • Duplex F51 (S31803 / S32205): 33 to 35

  • Super Duplex F53 (S32750): ≥ 42

• Structure: Austeno-ferritic dual-phase microstructure (50/50 balance)

• Scrap Cleanliness Standards:

  • Strict segregation between standard Duplex F51 and Super Duplex F53 grades due to molybdenum and nickel balance variations

  • Free of heavy mill scale, oxidation, slag, oil, grease, paint, and lubricants

  • Completely free of foreign metallic contamination (carbon steels, 300-series austenitic stainless steels, or non-ferrous alloys)

  • Free of slag, non-metallic inclusions, and foreign debris