Ni-Span-C Alloy 902 (For Springs) | Over 31 Years Metal Wave Springs & Retaining Rings Manufacturer | Tech Spring Manufacturing Corp.

Nickel- Cobalt 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.

Ni-Span-C Alloy 902 (For Springs)

A precipitation hardenable Nickel-Iron-Chromium alloy having outstanding controllable thermoelastic coefficient characteristics and excellent oxidation resistance in high temperature atmospheres. The alloy can be processed to have a constant modulus of elasticity at temperatures ranging from -45 to +65°C (-50 to +150°F). It can be used for any TSMC spring product such as wave springs, retaining rings and compression springs.


Nickel- Cobalt Base Wire for wire springs, flat springs and wire products

Key Features
  • Outstanding controllable thermoelastic coefficient characteristics
  • Can be processed to have constant modulus of elasticity from from -45 to +65°C (-50 to +150°F)
  • Good for springs in watches and weighing equipment
  • Age hardenable
Typical Applications

Springs in precise applications, such as watches and weighing machines

Approx. Operating Temperature

-45 to +65°C
-50 to +150°F

Chemical Composition
ElementNi+CoCrFeMnCSiSPCoTiAlCr+(Ti-4xC)
Min %41.004.90bal2.200.307.10
Max %43.505.75bal0.800.061.000.040.041.002.750.808.10
Wire Type
  • Round
  • Flat Wire
  • Shaped Wire
  • Rope/Strand
Specifications
  • AMS 5225
  • AMS 5221
  • HS 261
Designations
  • W.Nr N09902
  • AWS 080
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