List of Alloys & profiles

List of Alloys & profiles

Alloy Wire International

Datasheet: Super Duplex

Super Duplex

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

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

Available in all profile options

alloy featured image inconel Super Duplex

Key Features

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


Designations

W.Nr. 1.4410
UNS S32750
2507
AWS 169

Specifications

ISO 15156-3
(NACE MR 0175)

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

Alloy Details

DensityMelting PointCoefficient of ExpansionModulus of RigidityModulus of Elasticity
7.8 g/cm³1350°C13.5 μm/m °C (25 – 100 °C)77 kN/mm²200 kN/mm²
0.28 lb/in³2460°F7.5 x 10-6 in/in °F (70 – 200 °F)11000 ksi29000 ksi

Heat treatment of finished parts

Condition as supplied by AWITypeTemperatureTimeCooling
Annealed or Spring TemperStress Relieve250 °C (480 °F)1 HrAir

Properties

Annealed
Approx. tensile strength<1100 N/mm²<159 ksi
Approx. operating temperature-200 to +300 °C-330 to +570 °F
Spring Temper
Approx. tensile strength1300 – 1900 N/mm²189 – 276 ksi
Approx. operating temperature-200 to +300 °C-330 to +570 °F

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