The basic content of the alloy in the Hyper Duplex 3207 (UNS S33207) grade stainless steel consists of metal like Chromium, Nitrogen,Nickel, Molybdenum and trace amounts of tungsten. The content of these elements in the alloy promotes the formation of intermetallic phases. Intermetallic phases are known to reduce the impact resistance of ss.
Hyper duplex grades were developed specifically to meet the increasing demands of the chemical, deep water umbilical’s, oil & gas industries. Since the Hyper Duplex Material is known to resist corrosion like pitting and crevice corrosion) and has good mechanical properties like an increased tensile strength and high fatigue strength. Other properties of the 2707 Hyper Duplex (UNS S32707) include its resistance to both chlorine and sulphur related stress cracking, erosion corrosion, resistance to general corrosion in acidic and alkaline containing environments and good weldability. Hence they are used as equipment’s in industries like control lines, raw seawater injection and chemical injection lines.
An increased tensile strength of the Hyper Duplex Stainless Steel could be used to down gauge the final product( end product contributes to lighter installations), thus proving to be an economically viable option without losing any of its high strength and corrosion resistance properties.As compared to other super duplex stainless steels, the Hyper-Duplex Stainless Steel Grade 2707 has an increased corrosion resistance, yield strength and superior fatigue features. Therefore they find applications in the oil and gas industry.
|Grade||Hyper Duplex Stainless Steel Price per kg in UAE|
|Hyper Duplex Stainless Steel price per kg||INR 3000-5000|
Please note above is just approximate Price of Hyper Duplex Stainless Steel in Dubai. Please contact SME for Free Quote and latest Hyper Duplex Stainless Steel price list in UAE. We have huge stock of Duplex Plate and Duplex Sheet in UAE.
Hyper Duplex also known as HDSS and latest type of dual phase ss at grade EN 1.4658. It offers pitting resistance numbers (PRE) higher than 48. Hyper duplex grades includes SAF 2707 HD (UNS S32707) and SAF 3207 HD (UNS S33207).
Seamless and welded tube and pipe: ASTM A789, A790
|UNS: S32707 (2707 HD)||≤0.030||≤0.5||≤1.5||≤0.035||≤0.010||27||6.5||4.8|
|UNS: S33207 (3207 HD)||≤0.030||≤0.8||≤1.5||≤0.035||≤0.010||32||7||3.5|
|SAF 2707 HD||S32707||1.4658||48|
|SAF 3207 HD||S33207||50|
|Pipe & Tube||Sheet/Plate||Bar|
|A790, A928, A789||A240||A276|
2707 Hyper Duplex (UNS S32707) is a hyper-duplex stainless steel; a high-alloy duplex steel with a PRE value of min. 48*.
The following figures apply to solution annealed seamless tubes with wall thicknesses up to 4 mm.
|Proof strength, MPa||Tensile strength, MPa||Elongation, %||Hardness, HRC|
|Proof strength, ksi||Tensile strength, ksi||Elongation, %||Hardness, HRC|
1MPa = 1N/mm2
a) Rp0.2 and Rp1.0 correspond to 0.2% offset and 1.0% offset yield strength, respectively.
b) Based on L0 = 5.65 √S0 where L0 is the original gauge length and S0 the original cross-section area.
Hyper Duplex 3207 (UNS S33207) is a hyper-duplex stainless steel; a high-alloy duplex steel with a PRE value of min. 50*.
Density: 7.8 g/cm3, 0.28lb/in3
|Temperature, °C||J/(Kg °C)||Temperature, °F||Btu/(lb °F)|
|SAF 2707 HD||12||14||16||18||19|
1) W/(m °C)
|SAF 2707 HD||7||8||9||10||11|
1) Btu/(ft h °F)
SAF 2707 HD has a coefficient of thermal expansion at the same level as carbon steel. The values given are average values in the temperature ranges.
|SAF 2707 HD||12.5||13||13.5||14|
|SAF 2707 HD||7||7.5||7.5||7.5|
|Temperature, °C||µΩm||Temperature, °F||µΩin.|
|Temperature, °C||MPa||Temperature, °F||ksi|
1) ( x103 )
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