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UNS S32750 Pipes & Tubes

SAF 2507 / 1.4410 is a super duplex stainless steel with 25% chromium, 4% molybdenum, 7% nickel . This kind of pipes always purchased by the clients who are require exceptional strength and corrosion resistance . The steel has excellent resistance to chloride stress corrosion cracking, high thermal conductivity and a low coefficient of thermal expansion. And the high chromium, molybdenum, and nitrogen levels provide excellent resistance to pitting, crevice, and general corrosion.

Most of 2507 / 1.4410 duplex steel pipes are produced by cold drawn method . The alloy has higher yield strength and lower ductility than austenitic steels so fabricators may fid that higher forming forces , increased radius of bending , and increased allowance for springback are necessary . Deep drawing , stretch forming , and similar processes are more difficult to perform on 2507 than on an austenitic stainless steel . When forming requires more than 10% cold deformation , a solution anneal and quench are recommended . And finished cold drawn duplex steel pipe , manufacturer should be solution annealed and quenched . The minimum annealing tempeture is 19250F . Annealing should be followed immediately by a rapid air or water quench. To obtain maximum corrosion resistance, heat treated products should be pickled and rinsed .

Super Duplex S2507 S32750 1.4410


Material Grade S32205 , S31803 , S32304 , S32750, F51 , F53 , 2205 , 2507 etc
Outer Diameter 5.80mm – 323.90mm (0.23″ to 12″)
Wall Thickness 0.71mm – 25.4mm (0.04″ to 1″)
Length as per customer’s requirement
Standard ASTM A789 ; ASTM A790 ; EN 10216-5ect .
Application a) Petroleum
b) Chemical industry
c) Instrument
d) Industrial transportation
e) Mechanical structure industry
f) Need high corrision ability pipe’s industry , such as offshore industry etc
Advantages a) Superior surface finish
b) Better mechanical property
c) More precise dimension
d) Perfect inspection method and inspection equipment


Chemical Composition :

UNS No Grade C Si Mn P S Cr Mo Ni N Other
S32750 2507 0.030 0.80 1.20 0.035 0.020 24.0/26.0 3.0/5.0 6.00/8.00 0.24/0.32 Cu:0.50

Mechanical Properties:

UNS No Grade Proof Stress0.2% (MPa) Tensile Strength(MPa) ElongationA5(%) Hardness Max
S32750 2507 550 795 15 310 32*

Type Of UNS S32750 Super Duplex Steel Seamless Pipes & Tubes

UNS S32750 Tubes
UNS S32750 Welded Pipes
UNS S32750 Seamless Pipes
Super Duplex Tubes
Super Duplex Steel Welded Pipes
Super Duplex Steel Seamless Pipes
Super Duplex 2507