Supplier for Nickel-based Alumina Formers
Supplier for Nickel-based Alumina Formers
(OP)
In addition to Haynes 214, is there any other suppler for the nickel-chromium-aluminum alloys, i.e austenitic alumina formers?
Thanks in advance.
Thanks in advance.





RE: Supplier for Nickel-based Alumina Formers
While I am not aware of another nickel alloy with quite as much aluminum as the 214, my company stocks a grade known as alloy 602CA or Nicrofer 6025HT. This was developed by Krupp VDM.
Alloy 602CA is nominally 63% Nickel, 25% Chromium, 2.2% Aluminum with small additions of yttrium, zirconium, and titanium. It forms an alumina scale as well as a chromia scale to protect itself from high temperature oxidation.
RE: Supplier for Nickel-based Alumina Formers
Thanks for your reply.
For our high temperatures application (400-850oC), we want to prevent or minizise the formation of chromia outerlayer. Alloy 602CA is not suitable because it forms an chromia outerlayer (and an alumina underneath the chromia outwerlayer) as you mentioned.
Warmest regards,
Chin Toh
Materials Scientist
CERAMIC FUEL CELLS LIMITED
Website: www.cfcl.com.au
RE: Supplier for Nickel-based Alumina Formers
http://www.specialmetals.com/products/index.html
Also, Krupp VDM offers another alloy, Aluchrom YHf, that has a much higher aluminum content. You can obtain more information using the following links:
http://www.kruppvdm.com/_pdf/YHf_e.pdf
http://www.kruppvdm.com/Werkstoffe_im_Ueberblick_eng.html