Well casing steel

Details Well casing steel Well casing steel

C - Chemistry, Metallurgy

22

C

75/120, 148/34

C22C 38/24 (2006.01) C21D 1/18 (2006.01) C21D 9/08 (2006.01)

Patent

CA 1103065

ABSTRACT a low alloy, high strength steel well casing exhibiting excellent resistence to hydrogen sulfide stress corrosion and high yield strength of from 90,000 to 145,000 psi comprised of an aluminum-killed steel alloyed with chromium, molybdenum and vanadium. A method of making such a steel including a quench and temper heat treatment characterized by the steps of austenitizing in the range of from 1550 to 1700°F, quenching to martensite, and tempering in the range of from 1200 to 1400°F to a maximum hardness of 35RC.

289093

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