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The Super duplex stainless steel UNS S32750 pipe fittings is combining the most desirable features of both austenitic and ferritic steel. It is high resistance to corrosion in a greater range of media. It's resistant to pitting and crevice corrosion and also chloride-containing environments because of molybdenum, high chromium and nitrogen level. However duplex microstructure provides this grade greater strength UNS S32750 low coefficient of thermal expansion and high heat conductivity than austenitic steel. It is designed to meet the features like high strength, pitting resistance, crevice corrosion, erosion cracking, corrosion fatigue, stress corrosion cracking and strong weldability.


The specification of the super duplex pipe fittings stainless steel UNS S32750 is ASME SA815 and ASTM A815. The thickness is 0.5 to 45mm. Its outer diameter is 6.0 to 630mm. The dimensions of the fitting are WT (0.5-45) mm and OD (6.0-630) mm. The schedule is SCH 20, 80, 30, 40 and STD. In length, the fitting available are single random and in cut length. To buy it online you must have to specify all about which specification tubing is needed for you. Accordingly, you will be served by sellers.

FAQ's for Super Duplex Steel S32750 Pipe Fittings

Generally, the S32750 super duplex stainless steel price per kg is between INR 450 per kg to INR 700 per kg

UNS S32750 (also known as F53 or Alloy 2507) is a super duplex stainless steel containing 25% chromium, 7% nickel, 3% molybdenum, and 0.24% nitrogen. It has the following chemical composition (in weight per cent):

Carbon (C): 0.03%

Silicon (Si): 0.80%

Manganese (Mn): 1.20%

Phosphorus (P): 0.035%

Sulfur (S): 0.020%

Chromium (Cr): 24.0-26.0%

Nickel (Ni): 6.0-8.0%

Molybdenum (Mo): 2.9-3.9%

Nitrogen (N): 0.15-0.25%

The equivalent of duplex 32750 is ASTM A890, ASTM A995 and ASME SA351/995 grade CE3Mn or 5A, also written as J93404 or 25Cr-7Ni-Mo-N.

Super Duplex (2507) is an alloy of stainless steel used primarily in the oil and natural gas industry. It is particularly useful for offshore platforms, heat-exchanging units, and structural and architectural components.

Ultimate Tensile Strength (N/mm²): 760-800

Proof Stress (N/mm²): 315-550

Elongation (%): 15

Hardness (HB): 280 max

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