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UNS N08830 – New Ni-Fe-Cr-Mo-N Super-Austenitic Alloy

This paper will introduce UNS N08830 - a new Ni-Fe-Cr-Mo-N superaustenitic alloy with a microstructural evaluation as well as corrosion and mechanical test results. exceptional pitting and crevice corrosion resistance, high strength.

Product Number: 51317--8979-SG
ISBN: 8979 2017 CP
Author: Brian DeForce
Publication Date: 2017
$0.00
$20.00
$20.00

ATI 830TM alloy (UNS N08830) is a new Ni-Fe-Cr-Mo-N super-austenitic alloy. It is a non-magnetic high strength alloy with exceptional pitting and crevice corrosion resistance while maintaining excellent toughness and wear resistance. This solid solution strengthened alloy has additions of Cu W Co and Mn resulting in improved microstructural stability as compared to other alloys with similar corrosion resistance allowing for manufacturing productivity in a greater number of sizes and product forms.This paper will introduce the alloy with a microstructural evaluation as well as corrosion and mechanical test results. Corrosion testing includes requirements to NACE MR0175 / ISO 15156 sour service testing slow strain rate testing in sodium chloride stress corrosion cracking testing in boiling sodium chloride and pitting and crevice corrosion in ferric chloride. Mechanical testing covers through-thickness profiles for tensile toughness fatigue and hardness.

Key words: Oil & gas, drilling, crevice corrosion, localized corrosion, ferric chloride, ASTM G48

ATI 830TM alloy (UNS N08830) is a new Ni-Fe-Cr-Mo-N super-austenitic alloy. It is a non-magnetic high strength alloy with exceptional pitting and crevice corrosion resistance while maintaining excellent toughness and wear resistance. This solid solution strengthened alloy has additions of Cu W Co and Mn resulting in improved microstructural stability as compared to other alloys with similar corrosion resistance allowing for manufacturing productivity in a greater number of sizes and product forms.This paper will introduce the alloy with a microstructural evaluation as well as corrosion and mechanical test results. Corrosion testing includes requirements to NACE MR0175 / ISO 15156 sour service testing slow strain rate testing in sodium chloride stress corrosion cracking testing in boiling sodium chloride and pitting and crevice corrosion in ferric chloride. Mechanical testing covers through-thickness profiles for tensile toughness fatigue and hardness.

Key words: Oil & gas, drilling, crevice corrosion, localized corrosion, ferric chloride, ASTM G48

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Picture for The Sensitisation Behaviour of Alloy UNS N08825 After Heat Treatment as Used in Clad Materials
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The Sensitisation Behaviour of Alloy UNS N08825 After Heat Treatment as Used in Clad Materials

Product Number: 51317--9459-SG
ISBN: 9459 2017 CP
Author: Helena Alves
Publication Date: 2017
$20.00

The aim of this paper is to present recent standard test corrosion data obtained in laboratory for alloy UNS N08825 after post weld heat treatment in comparison with as delivered (soft annealed) material.