Super Duplex Stainless Steel

High resistance to pitting, crevice and chloride stress corrosion, high resistance to general corrosion in acids, high corrosion fatigue and erosion corrosion, good weldability, High Pitting Resistance Equivalent Number (>40).

Material Designations

Market Grade UNS
Super-Duplex S32750

 

Standards

ASTM ASTM OTHERS
A182 A479 NACE MR0175

Product Features

  • UTS (KSI): 116-145 Min
  • Yield 0.2% Offset (KSI): 80 Min
  • EL (% Min): 25
  • RA (% Min): –
  • Hardness (HRC): 18-32
  • Charpy Impact Min. ft-lbs: 50 @-50°F

Technical Data

C Si Mn P S Cr Mo Ni Cu N
max. 0.030 max. 0.80 max. 1.20 max. 0.035 max. 0.020 24.0 to 26.0 3.0 to 5.0 6.0 to 8.0 max. 0.50 24.0 to 32.0