Super Duplex Alloy 32750

Super Duplex Alloy 32750

Super Duplex Alloy 32750 Duplex stainless steels are magnetic and are far more corrosion resistant than more commonly used stainless grades, ie 302 and 316. Super Duplex is also known as Alloy 32750 and SAF 2507. Chemical Composition The above tensile strength ranges are typical. If you require...
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Product Details

Super Duplex Alloy 32750

Duplex stainless steels are magnetic and are far more corrosion resistant than more commonly used stainless grades, ie 302 and 316.


Super Duplex is also known as Alloy 32750 and SAF 2507.


Chemical Composition

ElementMin %Max %
C0.03
Mn1.2
Si0.80
S0.015
P0.035
Cr24.026.0
Ni6.08.0
Mo3.04.5
N0.240.35
Cu0.5
Febal


SpecificationsDesignationsKey FeaturesTypical Applications

ISO 15156-3
(NACE MR 0175)

W.Nr. 1.4410
UNS S32750
2507
AWS 169

Excellent resistance to stress corrosion cracking in chloride-bearing environments
Excellent resistance to pitting and crevice corrosion
High resistance to general corrosion

Oil and gas exploration
Marine applications


Density

7.8 g/cm³

0.28 lb/in³

Melting Point

1350°C

2460°F

Coefficient of Expansion

13.5 μm/m °C (25 – 100°C)

7.5 x 10-6 in/in °F (70 – 200°F)

Modulus of Rigidity

77 kN/mm²

11000 ksi

Modulus of Elasticity

200 kN/mm²

29000 ksi


Heat Treatment of Finished Parts




Condition as supplied by Alloy Wire

Type

Temperature

Time (Hr)

Cooling


°C

°F





Annealed or Spring Temper

Stress Relieve

250

480

1

Air


Properties



Condition

Approx. tensile strength

Approx. operating temperature



N/mm²

ksi

°C

°F


Annealed

700 – 900

102 – 131

-200 to +300

-330 to +570

Spring Temper

1300 – 1900

189 – 276

-200 to +300

-330 to +570


The above tensile strength ranges are typical. If you require different please ask.


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