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10310 Alloy 945 and its Derivatives-Higher Strength Products for Oil and Gas

Picture for 10310 Alloy 945 and its Derivatives-Higher Strength Products for Oil and Gas
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Product Number: 51300-10310-SG
ISBN: 10310 2010 CP
Author: Sarwan Mannan
Publication Date: 2010
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A new Ni-base alloy with nominal composition of Fe-47Ni-20.5Cr-3Mo-2Cu-3Nb-1.5Ti is developed to provide 125 ksi minimum yield strength and an excellent combination of ductility and impact strength. Testing in various NACE environments has shown that the alloy has excellent stress corrosion and sulfide stress corrosion resistance. Based on this set of testing, the alloy was incorporated into NACE MR0175 / ISO-15156 to level VI. In the recent corrosion testing, the alloy passed NACE level VII and NACE level VI at 450F and was subsequently incorporated into NACE MR0175 / ISO 15156 up to these limits. A number of mill heats have been melted and processed to establish commercial availability. In addition to general alloy characteristics, this paper will present development of a 140 ksi min yield strength derivative of alloy 945. Capability of the alloy to produce pump shaft products for 165 ksi min and 210 ksi min yield strength will also be presented.

Keywords: Ni-based, Alloy 945, sour environments, precipitation hardenable, high strength
A new Ni-base alloy with nominal composition of Fe-47Ni-20.5Cr-3Mo-2Cu-3Nb-1.5Ti is developed to provide 125 ksi minimum yield strength and an excellent combination of ductility and impact strength. Testing in various NACE environments has shown that the alloy has excellent stress corrosion and sulfide stress corrosion resistance. Based on this set of testing, the alloy was incorporated into NACE MR0175 / ISO-15156 to level VI. In the recent corrosion testing, the alloy passed NACE level VII and NACE level VI at 450F and was subsequently incorporated into NACE MR0175 / ISO 15156 up to these limits. A number of mill heats have been melted and processed to establish commercial availability. In addition to general alloy characteristics, this paper will present development of a 140 ksi min yield strength derivative of alloy 945. Capability of the alloy to produce pump shaft products for 165 ksi min and 210 ksi min yield strength will also be presented.

Keywords: Ni-based, Alloy 945, sour environments, precipitation hardenable, high strength
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