Alloy 32760 is a super duplex stainless steel supplied in the hot worked and solution annealed condition. As a super duplex stainless steel, it combines the desirable aspects of both austenitic and ferritic grades. The higher chromium, molybdenum and nitrogen contents result in a Pitting Resistance Equivalent number (PREN) of >40, providing pitting and crevice corrosion resistance superior to austenitic and duplex stainless steels in almost all corrosive media, and a Critical Pitting Temperature exceeding 50°C nb. versions of the PREN formula also include W as a positive influence on overall pitting resistance.
It provides higher strength than both austenitic and 22% Cr duplex stainless steels, and is listed in NACE MR 0175 for sour service and ASME for pressure vessel applications.
|0.2% Proof Stress||550 N/mm2||79.8 ksi|
|Tensile Strength||750 N/mm2||108.8 ksi|
|Reduction of area||45%|
|Hardness (Brinell)||270 max.|
|Impact Strength (Room Temp)||80J||59 lb.ft|
|Impact Strength (-46oC)||60J av (45J min)||44 lb.ft av (33 lb.ft min)|
|Magnetic Permeability (20°C)||33|
|Young’s Modulus (kN/mm2)||199|
|Specific Electrical Resistance, 20°C (µΩ.m)||0.8|
|Mean coefficient of thermal expansion, 20-300°C (m/m/oC)||11.1 x 10-6|
|Specific Heat, 20°C (J/kg.K)||475|
|Thermal conductivity, 20°C (W/m.K)||14.2|
|Fracture Toughness, kQ (MPa/m2)||98|
Worldwide Delivery Available
We can offer air, sea and road freight shipping options, with choice of packaging, to deliver to customers globally.
Let us manage your total material requirements with call-off and consignment arrangements.
Up to 40 sizes per alloy available
More sizes equal less machining and a more cost-effective supply chain.