Elgiloy Springs

G & O Phynox/Elgiloy Springs

  • aerospace spring manufacturer
  • aerospace spring manufacturer
  • aerospace spring manufacturer

Phynox/Elgiloy is commonly used in sub sea applications and if correctly specified complies with NACE MR 0175

Phynox (or Elgiloy) as it is sometimes known can be used In a variety of different conditions. AMS5833 & AMS5834 are both solution heat treated & cold drawn, AMS5834 is also aged. After Ageing the material must exhibit a minimum hardness of 46 HRC and so these specifications are not ideally suited to NACE MR 0175 which limits this material to a maximum of 60 HRC.

However it can also be procured to UNS R30003 which is the grade specified in ISO 15156 Part 3 (NACE MR 0175).

All of the springs we produce are fully traceable and come as standard with a certificate of conformity to EN10204 section 3.1 or 3.2 whichever is preferred.


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I have been working with G&O since October 2019 and I could never say a bad word about this company. I have always been supported with important and critical items and as a company they are meeting my personal requirements. The business relationship with G&O is strong even during the hard times of the COVID-19 pandemic. G&O is self managing the VMI system each week I am up to date with any part number supplied by them. I would recommend anyone at anytime a collaboration with G&O. Tomasz Grabarek Material Controller - Incora
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