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Sunday 7 June 2020
  • Super Duplex S32750 Data Sheet
  • Super Duplex S32750 Data Sheet
  • Super Duplex S32750 Data Sheet
  • Super Duplex S32750 Data Sheet
  • Super Duplex S32750 Data Sheet
  • Super Duplex S32750 Data Sheet
  • Super Duplex S32750 Data Sheet
  • Super Duplex S32750 Data Sheet

 

Alloy

UNS Number

SAE Number

Super Duplex

S32750

 UNS S32750

 

 

GENERAL PROPERTIES

Alloy 32750 is a super duplex stainless steel supplied in the 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 >41, 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.

RESISTANCE TO CORROSION

UNS S32760 is characterized by:

  • High resistance to stress corrosion cracking in halide containing environments.
  • High resistance to pitting and crevice corrosion.
  • High resistance to general corrosion.
  • High mechanical strength.
  • High resistance to erosion corrosion and corrosion fatigue.

 

PHYSICAL PROPERTIES

Melting Point

Density

Specific Gravity

Modulus of Elasticity
in Tension

 1350 ℃

  7.8g/cm3

7.8

200 GPa

MECHANICAL PROPERTIES

Alloy

Tensile Strength
Minimum
(psi)

Yield Strength
Minimum 0.2% offset

(psi)

% Elongation
in 2" Minimum

       

SS 329

115,000

80,000

15

CHEMICAL PROPERTIES

Alloy

C

Si

Mn

P

Cr

Ni

N

Mo

S

Fe

S32750

0.03

0.8

1.2

0.035

24.0-26.0

6.0-8.0

0.24-0.32

3.0-5.0

0.02

Bal

WELDING

Alloy S32750 is readily weldable using many of the standard electric arc welding processes but oxyacetylene welding is not recommended because carbon pickup in the weld metal may occur.

HEAT TREATMENT

Alloy S32750 should be solution annealed and quenched after either hot or cold forming. Solution annealing should be done at a minimum of 1052ºC

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.

Contact Us

 

contact phoneT: + 44 (0)1902 409316
Fusion House
The Crescent
Willenhall
West Midlands
WV13 2QR

F: + 44 (0)1902 409304
E: sales@quest4alloys.com