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SUPER DUPLEX • UNS S32750 • WNR 1.4410

Super Duplex Stainless Steel | Super Duplex Stainless Steel 32750 | Super Duplex | SDuplex Manufacturers | Manufacturer of Duplex and Super Duplex

Manufacturer of Duplex | Duplex 32750 | Duplex 32750 Exporters | Duplex 32750 | Duplex 1.4410 | Duplex and Super Duplex Manufacturer Near You | Duplex and Super Duplex | Duplex Supplier | Exporter of Duplex and Super Duplex

Overview:

Krystal is a renowned exporter, manufacturer, stockist, supplier, and stockholder of high-quality Duplex and Super Duplex Alloy Seamless Tubes. These tubes are celebrated for their outstanding corrosion resistance, especially against chloride-induced stress corrosion cracking, and offer superior strength compared to standard austenitic stainless steels. Ideal for demanding applications in the chemical processing, petrochemical, marine, and oil and gas industries, Duplex and Super Duplex alloy tubes provide excellent performance in harsh environments. They maintain their mechanical properties across a wide temperature range, ensuring reliability and durability. Additionally, these tubes offer excellent weldability and ease of fabrication, making them suitable for a variety of critical applications.
Greater Corrosion Resistance Than Standard Duplex Grades

Super Duplex stainless like S32750, is a mixed microstructure of austenite and ferrite (50/50) which has improved strength over ferritic and austenitic steel grades. The main difference is that Super Duplex has a higher molybdenum and chromium content which gives the material greater corrosion resistance than standard duplex grades.

High Strength and Cost Effective Corrosion Resistance

The balanced duel phase microstructure combines high strength with cost effective corrosion resistance particularly in high chloride environments.Super Duplex has the same benefits as its counterpart – it has lower alloying costs when compared with similar ferritic and austenitic grades with equipment corrosion resistance in chloride containing environments due to the material’s increased tensile and yield strength. In many cases this gives the purchaser the welcomed option of purchasing smaller thicknesses without the need to compromise on quality and performance.

AVAILABLE TUBE PRODUCT FORMS
Seamless Straight Tube | Straight Pipe | U - Tube | Coiled Tube
TYPICAL MANUFACTURING SPECIFICATIONS
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TYPICAL APPLICATIONS
CCUS PROJECTS
HEAT EXCHANGERS
OFFSHORE PLATFORMS
FIRE-FIGHTING SYSTEMS
INJECTION & BALLAST WATER SYSTEMS
INDUSTRIES PREDOMINANTLY USING THIS GRADE
OIL AND GAS
CHEMICAL PROCESSES
GENERAL ENGINEERING

Technical Specifications

CHEMICAL COMPOSITION (% by weight)
Element Min Max
C - 0.030
Cr 24 26
Cu 0.50 1
Mn - 2
Mo 3 5
N 0.24 0.35
Ni 6 8
P - 0.35
S - 0.015
Si - 1
PHYSICAL PROPERTIES (Room Temperature)
Specific Heat (0-100°C) 500 J.kg-1.°K-1
Thermal Conductivity 15 W.m -1.°K-1
Thermal Expansion 11 mm/m/°C
Modulus Elasticity 200 GPa
Electrical Resistivity 8.12 Ohm-cm
Density 7.80 g/cm3
MECHANICAL PROPERTIES
Temper Annealed
Tensile Rm 115 ksi (min)
Tensile Rm 800 MPa (min)
R.p. 0.2% Yield 80 ksi (min)
R.p. 0.2% Yield 550 MPa (min)
Elongation (2” or 4D gl) 15 % (min)