Super Duplex (For Springs) | Over 31 Years Metal Wave Springs & Retaining Rings Manufacturer | Tech Spring Manufacturing Corp.

Iron Base Wire for wire springs, flat springs and wire products / Tech Spring Manufacturing Corp. is a high quality Metal Spring Manufacturer in Taiwan, offering Wave Springs, Retaining Rings and Constant Force Spring with good quality and reasonable price.

Super Duplex (For Springs)

Duplex stainless steels are magnetic and are far more corrosion resistant than more commonly used stainless grades, ie 302 and 316. It can be used for any TSMC spring product such as wave springs, retaining rings and compression springs.
Super Duplex is also known as Alloy 32750 and SAF 2507.


Iron Base Wire for wire springs, flat springs and wire products

Key Features
  • Excellent resistance to stress corrosion cracking in chloride-bearing environments
  • Excellent resistance to pitting and crevice corrosion
  • High resistance to general corrosion
Typical Applications

Oil and gas exploration
Marine applications

Approx. Operating Temperature

-200 to 300°C
-330 to 570°F

Chemical Composition
ElementNiCrFeMnCCuSiSPMoN
Min %6.0024.00bal3.000.24
Max %8.0026.00bal1.200.030.050.800.0150.0354.500.35
Wire Type
  • Round
  • Flat Wire
  • Rope/Strand
Specifications
  • ISO 15156-3 (NACE MR 0175)
Designations
  • W.Nr. 1.4410
  • UNS S32750
  • 2507
  • AWS 169
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